Pull powerpc fix from Michael Ellerman:
"One fix for a regression in my commit adding KUAP (Kernel User Access
Prevention) on Radix, which incorrectly touched the AMR in the early
machine check handler.
Thanks to Nicholas Piggin"
* tag 'powerpc-5.2-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s/exception: Fix machine check early corrupting AMR
Pull SMP fixes from Thomas Gleixner:
"Two small changes for the cpu hotplug code:
- Prevent out of bounds access which actually might crash the machine
caused by a missing bounds check in the fail injection code
- Warn about unsupported migitation mode command line arguments to
make people aware that they typoed the paramater. Not necessarily a
fix but quite some people tripped over that"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Fix out-of-bounds read when setting fail state
cpu/speculation: Warn on unsupported mitigations= parameter
Pull x86 fixes from Ingo Molnar:
"Misc fixes all over the place:
- might_sleep() atomicity fix in the microcode loader
- resctrl boundary condition fix
- APIC arithmethics bug fix for frequencies >= 4.2 GHz
- three 5-level paging crash fixes
- two speculation fixes
- a perf/stacktrace fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/unwind/orc: Fall back to using frame pointers for generated code
perf/x86: Always store regs->ip in perf_callchain_kernel()
x86/speculation: Allow guests to use SSBD even if host does not
x86/mm: Handle physical-virtual alignment mismatch in phys_p4d_init()
x86/boot/64: Add missing fixup_pointer() for next_early_pgt access
x86/boot/64: Fix crash if kernel image crosses page table boundary
x86/apic: Fix integer overflow on 10 bit left shift of cpu_khz
x86/resctrl: Prevent possible overrun during bitmap operations
x86/microcode: Fix the microcode load on CPU hotplug for real
Pull perf fixes from Ingo Molnar:
"Various fixes, most of them related to bugs perf fuzzing found in the
x86 code"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/regs: Use PERF_REG_EXTENDED_MASK
perf/x86: Remove pmu->pebs_no_xmm_regs
perf/x86: Clean up PEBS_XMM_REGS
perf/x86/regs: Check reserved bits
perf/x86: Disable extended registers for non-supported PMUs
perf/ioctl: Add check for the sample_period value
perf/core: Fix perf_sample_regs_user() mm check
Pull irq fixes from Ingo Molnar:
"Diverse irqchip driver fixes"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3-its: Fix command queue pointer comparison bug
irqchip/mips-gic: Use the correct local interrupt map registers
irqchip/ti-sci-inta: Fix kernel crash if irq_create_fwspec_mapping fail
irqchip/irq-csky-mpintc: Support auto irq deliver to all cpus
Pull EFI fixes from Ingo Molnar:
"Four fixes:
- fix a kexec crash on arm64
- fix a reboot crash on some Android platforms
- future-proof the code for upcoming ACPI 6.2 changes
- fix a build warning on x86"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efibc: Replace variable set function in notifier call
x86/efi: fix a -Wtype-limits compilation warning
efi/bgrt: Drop BGRT status field reserved bits check
efi/memreserve: deal with memreserve entries in unmapped memory
Pull power management fix from Rafael Wysocki:
"Avoid skipping bus-level PCI power management during system resume for
PCIe ports left in D0 during the preceding suspend transition on
platforms where the power states of those ports can change out of the
PCI layer's control"
* tag 'pm-5.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI: PM: Avoid skipping bus-level PM on platforms without ACPI
Pull XArray fixes from Matthew Wilcox:
- Account XArray nodes for the page cache to the appropriate cgroup
(Johannes Weiner)
- Fix idr_get_next() when called under the RCU lock (Matthew Wilcox)
- Add a test for xa_insert() (Matthew Wilcox)
* tag 'xarray-5.2-rc6' of git://git.infradead.org/users/willy/linux-dax:
XArray tests: Add check_insert
idr: Fix idr_get_next race with idr_remove
mm: fix page cache convergence regression
Merge misc fixes from Andrew Morton:
"15 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
linux/kernel.h: fix overflow for DIV_ROUND_UP_ULL
mm, swap: fix THP swap out
fork,memcg: alloc_thread_stack_node needs to set tsk->stack
MAINTAINERS: add CLANG/LLVM BUILD SUPPORT info
mm/vmalloc.c: avoid bogus -Wmaybe-uninitialized warning
mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
initramfs: fix populate_initrd_image() section mismatch
mm/oom_kill.c: fix uninitialized oc->constraint
mm: hugetlb: soft-offline: dissolve_free_huge_page() return zero on !PageHuge
mm: soft-offline: return -EBUSY if set_hwpoison_free_buddy_page() fails
signal: remove the wrong signal_pending() check in restore_user_sigmask()
fs/binfmt_flat.c: make load_flat_shared_library() work
mm/mempolicy.c: fix an incorrect rebind node in mpol_rebind_nodemask
fs/proc/array.c: allow reporting eip/esp for all coredumping threads
mm/dev_pfn: exclude MEMORY_DEVICE_PRIVATE while computing virtual address
Pull RISC-V fixes from Paul Walmsley:
"Minor RISC-V fixes and one defconfig update.
The fixes have no functional impact:
- Fix some comment text in the memory management vmalloc_fault path.
- Fix some warnings from the DT compiler in our newly-added DT files.
- Change the newly-added DT bindings such that SoC IP blocks with
external I/O are marked as "disabled" by default, then enable them
explicitly in board DT files when the devices are used on the
board. This aligns the bindings with existing upstream practice.
- Add the MIT license as an option for a minor header file, at the
request of one of the U-Boot maintainers.
The RISC-V defconfig update builds the SiFive SPI driver and the
MMC-SPI driver by default. The intention here is to make v5.2 more
usable for testers and users with RISC-V hardware"
* tag 'riscv-for-v5.2/fixes-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: mm: Fix code comment
dt-bindings: clock: sifive: add MIT license as an option for the header file
dt-bindings: riscv: resolve 'make dt_binding_check' warnings
riscv: dts: Re-organize the DT nodes
RISC-V: defconfig: enable MMC & SPI for RISC-V
Pull two more NFS client fixes from Anna Schumaker:
"These are both stable fixes.
One to calculate the correct client message length in the case of
partial transmissions. And the other to set the proper TCP timeout for
flexfiles"
* tag 'nfs-for-5.2-4' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS/flexfiles: Use the correct TCP timeout for flexfiles I/O
SUNRPC: Fix up calculation of client message length
Pull ceph fix from Ilya Dryomov:
"A small fix for a potential -rc1 regression from Jeff"
* tag 'ceph-for-5.2-rc7' of git://github.com/ceph/ceph-client:
ceph: fix ceph_mdsc_build_path to not stop on first component
Pull SCSI fix from James Bottomley:
"One simple fix for a driver use after free"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: vmw_pscsi: Fix use-after-free in pvscsi_queue_lck()
Pull block fixes from Jens Axboe:
"Just two small fixes.
One from Paolo, fixing a silly mistake in BFQ. The other one is from
me, ensuring that we have ->file cleared in the io_uring request a bit
earlier. That avoids a use-before-free, if we encounter an error
before ->file is assigned"
* tag 'for-linus-20190628' of git://git.kernel.dk/linux-block:
block, bfq: fix operator in BFQQ_TOTALLY_SEEKY
io_uring: ensure req->file is cleared on allocation
Pull pin control fixes from Linus Walleij:
"Sorry to bomb in fixes this late. Maybe I can comfort you by saying it
is only driver fixes, and mostly IRQ handling which is something GPIO
and pin control drivers never get right. You think it works and then
it doesn't.
Summary:
- Fix IRQ setup in the MCP23s08.
- Fix pin setup on pins > 31 in the Ocelot driver.
- Fix IRQs in the Mediatek driver"
* tag 'pinctrl-v5.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: mediatek: Update cur_mask in mask/mask ops
pinctrl: mediatek: Ignore interrupts that are wake only during resume
pinctrl: ocelot: fix pinmuxing for pins after 31
pinctrl: ocelot: fix gpio direction for pins after 31
pinctrl: mcp23s08: Fix add_data and irqchip_add_nested call order
0-Day test system reported some OOM regressions for several THP
(Transparent Huge Page) swap test cases. These regressions are bisected
to 6861428921 ("block: always define BIO_MAX_PAGES as 256"). In the
commit, BIO_MAX_PAGES is set to 256 even when THP swap is enabled. So the
bio_alloc(gfp_flags, 512) in get_swap_bio() may fail when swapping out
THP. That causes the OOM.
As in the patch description of 6861428921 ("block: always define
BIO_MAX_PAGES as 256"), THP swap should use multi-page bvec to write THP
to swap space. So the issue is fixed via doing that in get_swap_bio().
BTW: I remember I have checked the THP swap code when 6861428921
("block: always define BIO_MAX_PAGES as 256") was merged, and thought the
THP swap code needn't to be changed. But apparently, I was wrong. I
should have done this at that time.
Link: http://lkml.kernel.org/r/20190624075515.31040-1-ying.huang@intel.com
Fixes: 6861428921 ("block: always define BIO_MAX_PAGES as 256")
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 5eed6f1dff ("fork,memcg: fix crash in free_thread_stack on
memcg charge fail") corrected two instances, but there was a third
instance of this bug.
Without setting tsk->stack, if memcg_charge_kernel_stack fails, it'll
execute free_thread_stack() on a dangling pointer.
Enterprise kernels are compiled with VMAP_STACK=y so this isn't
critical, but custom VMAP_STACK=n builds should have some performance
advantage, with the drawback of risking to fail fork because compaction
didn't succeed. So as long as VMAP_STACK=n is a supported option it's
worth fixing it upstream.
Link: http://lkml.kernel.org/r/20190619011450.28048-1-aarcange@redhat.com
Fixes: 9b6f7e163c ("mm: rework memcg kernel stack accounting")
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Rik van Riel <riel@surriel.com>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
gcc gets confused in pcpu_get_vm_areas() because there are too many
branches that affect whether 'lva' was initialized before it gets used:
mm/vmalloc.c: In function 'pcpu_get_vm_areas':
mm/vmalloc.c:991:4: error: 'lva' may be used uninitialized in this function [-Werror=maybe-uninitialized]
insert_vmap_area_augment(lva, &va->rb_node,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
&free_vmap_area_root, &free_vmap_area_list);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mm/vmalloc.c:916:20: note: 'lva' was declared here
struct vmap_area *lva;
^~~
Add an intialization to NULL, and check whether this has changed before
the first use.
[akpm@linux-foundation.org: tweak comments]
Link: http://lkml.kernel.org/r/20190618092650.2943749-1-arnd@arndb.de
Fixes: 68ad4a3304 ("mm/vmalloc.c: keep track of free blocks for vmap allocation")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Joel Fernandes <joelaf@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With gcc-4.6.3:
WARNING: vmlinux.o(.text.unlikely+0x140): Section mismatch in reference from the function populate_initrd_image() to the variable .init.ramfs.info:__initramfs_size
The function populate_initrd_image() references
the variable __init __initramfs_size.
This is often because populate_initrd_image lacks a __init
annotation or the annotation of __initramfs_size is wrong.
WARNING: vmlinux.o(.text.unlikely+0x14c): Section mismatch in reference from the function populate_initrd_image() to the function .init.text:unpack_to_rootfs()
The function populate_initrd_image() references
the function __init unpack_to_rootfs().
This is often because populate_initrd_image lacks a __init
annotation or the annotation of unpack_to_rootfs is wrong.
WARNING: vmlinux.o(.text.unlikely+0x198): Section mismatch in reference from the function populate_initrd_image() to the function .init.text:xwrite()
The function populate_initrd_image() references
the function __init xwrite().
This is often because populate_initrd_image lacks a __init
annotation or the annotation of xwrite is wrong.
Indeed, if the compiler decides not to inline populate_initrd_image(), a
warning is generated.
Fix this by adding the missing __init annotations.
Link: http://lkml.kernel.org/r/20190617074340.12779-1-geert@linux-m68k.org
Fixes: 7c184ecd26 ("initramfs: factor out a helper to populate the initrd image")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In dump_oom_summary() oc->constraint is used to show oom_constraint_text,
but it hasn't been set before. So the value of it is always the default
value 0. We should inititialize it before.
Bellow is the output when memcg oom occurs,
before this patch:
oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null), cpuset=/,mems_allowed=0,oom_memcg=/foo,task_memcg=/foo,task=bash,pid=7997,uid=0
after this patch:
oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null), cpuset=/,mems_allowed=0,oom_memcg=/foo,task_memcg=/foo,task=bash,pid=13681,uid=0
Link: http://lkml.kernel.org/r/1560522038-15879-1-git-send-email-laoar.shao@gmail.com
Fixes: ef8444ea01 ("mm, oom: reorganize the oom report in dump_header")
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Wind Yu <yuzhoujian@didichuxing.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
madvise(MADV_SOFT_OFFLINE) often returns -EBUSY when calling soft offline
for hugepages with overcommitting enabled. That was caused by the
suboptimal code in current soft-offline code. See the following part:
ret = migrate_pages(&pagelist, new_page, NULL, MPOL_MF_MOVE_ALL,
MIGRATE_SYNC, MR_MEMORY_FAILURE);
if (ret) {
...
} else {
/*
* We set PG_hwpoison only when the migration source hugepage
* was successfully dissolved, because otherwise hwpoisoned
* hugepage remains on free hugepage list, then userspace will
* find it as SIGBUS by allocation failure. That's not expected
* in soft-offlining.
*/
ret = dissolve_free_huge_page(page);
if (!ret) {
if (set_hwpoison_free_buddy_page(page))
num_poisoned_pages_inc();
}
}
return ret;
Here dissolve_free_huge_page() returns -EBUSY if the migration source page
was freed into buddy in migrate_pages(), but even in that case we actually
has a chance that set_hwpoison_free_buddy_page() succeeds. So that means
current code gives up offlining too early now.
dissolve_free_huge_page() checks that a given hugepage is suitable for
dissolving, where we should return success for !PageHuge() case because
the given hugepage is considered as already dissolved.
This change also affects other callers of dissolve_free_huge_page(), which
are cleaned up together.
[n-horiguchi@ah.jp.nec.com: v3]
Link: http://lkml.kernel.org/r/1560761476-4651-3-git-send-email-n-horiguchi@ah.jp.nec.comLink: http://lkml.kernel.org/r/1560154686-18497-3-git-send-email-n-horiguchi@ah.jp.nec.com
Fixes: 6bc9b56433 ("mm: fix race on soft-offlining")
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reported-by: Chen, Jerry T <jerry.t.chen@intel.com>
Tested-by: Chen, Jerry T <jerry.t.chen@intel.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Xishi Qiu <xishi.qiuxishi@alibaba-inc.com>
Cc: "Chen, Jerry T" <jerry.t.chen@intel.com>
Cc: "Zhuo, Qiuxu" <qiuxu.zhuo@intel.com>
Cc: <stable@vger.kernel.org> [4.19+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the minimal fix for stable, I'll send cleanups later.
Commit 854a6ed568 ("signal: Add restore_user_sigmask()") introduced
the visible change which breaks user-space: a signal temporary unblocked
by set_user_sigmask() can be delivered even if the caller returns
success or timeout.
Change restore_user_sigmask() to accept the additional "interrupted"
argument which should be used instead of signal_pending() check, and
update the callers.
Eric said:
: For clarity. I don't think this is required by posix, or fundamentally to
: remove the races in select. It is what linux has always done and we have
: applications who care so I agree this fix is needed.
:
: Further in any case where the semantic change that this patch rolls back
: (aka where allowing a signal to be delivered and the select like call to
: complete) would be advantage we can do as well if not better by using
: signalfd.
:
: Michael is there any chance we can get this guarantee of the linux
: implementation of pselect and friends clearly documented. The guarantee
: that if the system call completes successfully we are guaranteed that no
: signal that is unblocked by using sigmask will be delivered?
Link: http://lkml.kernel.org/r/20190604134117.GA29963@redhat.com
Fixes: 854a6ed568 ("signal: Add restore_user_sigmask()")
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Eric Wong <e@80x24.org>
Tested-by: Eric Wong <e@80x24.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: <stable@vger.kernel.org> [5.0+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
load_flat_shared_library() is broken: It only calls load_flat_file() if
prepare_binprm() returns zero, but prepare_binprm() returns the number of
bytes read - so this only happens if the file is empty.
Instead, call into load_flat_file() if the number of bytes read is
non-negative. (Even if the number of bytes is zero - in that case,
load_flat_file() will see nullbytes and return a nice -ENOEXEC.)
In addition, remove the code related to bprm creds and stop using
prepare_binprm() - this code is loading a library, not a main executable,
and it only actually uses the members "buf", "file" and "filename" of the
linux_binprm struct. Instead, call kernel_read() directly.
Link: http://lkml.kernel.org/r/20190524201817.16509-1-jannh@google.com
Fixes: 287980e49f ("remove lots of IS_ERR_VALUE abuses")
Signed-off-by: Jann Horn <jannh@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Kees Cook <keescook@chromium.org>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mpol_rebind_nodemask() is called for MPOL_BIND and MPOL_INTERLEAVE
mempoclicies when the tasks's cpuset's mems_allowed changes. For
policies created without MPOL_F_STATIC_NODES or MPOL_F_RELATIVE_NODES,
it works by remapping the policy's allowed nodes (stored in v.nodes)
using the previous value of mems_allowed (stored in
w.cpuset_mems_allowed) as the domain of map and the new mems_allowed
(passed as nodes) as the range of the map (see the comment of
bitmap_remap() for details).
The result of remapping is stored back as policy's nodemask in v.nodes,
and the new value of mems_allowed should be stored in
w.cpuset_mems_allowed to facilitate the next rebind, if it happens.
However, 213980c0f2 ("mm, mempolicy: simplify rebinding mempolicies
when updating cpusets") introduced a bug where the result of remapping
is stored in w.cpuset_mems_allowed instead. Thus, a mempolicy's
allowed nodes can evolve in an unexpected way after a series of
rebinding due to cpuset mems_allowed changes, possibly binding to a
wrong node or a smaller number of nodes which may e.g. overload them.
This patch fixes the bug so rebinding again works as intended.
[vbabka@suse.cz: new changlog]
Link: http://lkml.kernel.org/r/ef6a69c6-c052-b067-8f2c-9d615c619bb9@suse.cz
Link: http://lkml.kernel.org/r/1558768043-23184-1-git-send-email-zhongjiang@huawei.com
Fixes: 213980c0f2 ("mm, mempolicy: simplify rebinding mempolicies when updating cpusets")
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In the case where a record marker was used, xs_sendpages() needs
to return the length of the payload + record marker so that we
operate correctly in the case of a partial transmission.
When the callers check return value, they therefore need to
take into account the record marker length.
Fixes: 06b5fc3ad9 ("Merge tag 'nfs-rdma-for-5.1-1'...")
Cc: stable@vger.kernel.org # 5.1+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Pull clk fixes from Stephen Boyd:
"A handful of clk driver fixes and one core framework fix
- Do a DT/firmware lookup in clk_core_get() even when the DT index is
a nonsensical value
- Fix some clk data typos in the Amlogic DT headers/code
- Avoid returning junk in the TI clk driver when an invalid clk is
looked for
- Fix dividers for the emac clks on Stratix10 SoCs
- Fix default HDA rates on Tegra210 to correct distorted audio"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: socfpga: stratix10: fix divider entry for the emac clocks
clk: Do a DT parent lookup even when index < 0
clk: tegra210: Fix default rates for HDA clocks
clk: ti: clkctrl: Fix returning uninitialized data
clk: meson: meson8b: fix a typo in the VPU parent names array variable
clk: meson: fix MPLL 50M binding id typo
Pull device mapper fixes from Mike Snitzer:
- Fix incorrect uses of kstrndup and DM logging macros in DM's early
init code.
- Fix DM log-writes target's handling of super block sectors so updates
are made in order through use of completion.
- Fix DM core's argument splitting code to avoid undefined behaviour
reported as a side-effect of UBSAN analysis on ppc64le.
- Fix DM verity target to limit the amount of error messages that can
result from a corrupt block being found.
* tag 'for-5.2/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm verity: use message limit for data block corruption message
dm table: don't copy from a NULL pointer in realloc_argv()
dm log writes: make sure super sector log updates are written in order
dm init: remove trailing newline from calls to DMERR() and DMINFO()
dm init: fix incorrect uses of kstrndup()
Pull pidfd fixes from Christian Brauner:
"Userspace tools and libraries such as strace or glibc need a cheap and
reliable way to tell whether CLONE_PIDFD is supported. The easiest way
is to pass an invalid fd value in the return argument, perform the
syscall and verify the value in the return argument has been changed
to a valid fd.
However, if CLONE_PIDFD is specified we currently check if pidfd == 0
and return EINVAL if not.
The check for pidfd == 0 was originally added to enable us to abuse
the return argument for passing additional flags along with
CLONE_PIDFD in the future.
However, extending legacy clone this way would be a terrible idea and
with clone3 on the horizon and the ability to reuse CLONE_DETACHED
with CLONE_PIDFD there's no real need for this clutch. So remove the
pidfd == 0 check and help userspace out.
Also, accordig to Al, anon_inode_getfd() should only be used past the
point of no failure and ksys_close() should not be used at all since
it is far too easy to get wrong. Al's motto being "basically, once
it's in descriptor table, it's out of your control". So Al's patch
switches back to what we already had in v1 of the original patchset
and uses a anon_inode_getfile() + put_user() + fd_install() sequence
in the success path and a fput() + put_unused_fd() in the failure
path.
The other two changes should be trivial"
* tag 'for-linus-20190627' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux:
proc: remove useless d_is_dir() check
copy_process(): don't use ksys_close() on cleanups
samples: make pidfd-metadata fail gracefully on older kernels
fork: don't check parent_tidptr with CLONE_PIDFD
Pull HID fixes from Jiri Kosina:
- fix for one corner case in HID++ protocol with respect to handling
very long reports, from Hans de Goede
- power management fix in Intel-ISH driver, from Hyungwoo Yang
- use-after-free fix in Intel-ISH driver, from Dan Carpenter
- a couple of new device IDs/quirks from Kai-Heng Feng, Kyle Godbey and
Oleksandr Natalenko
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: intel-ish-hid: fix wrong driver_data usage
HID: multitouch: Add pointstick support for ALPS Touchpad
HID: logitech-dj: Fix forwarding of very long HID++ reports
HID: uclogic: Add support for Huion HS64 tablet
HID: chicony: add another quirk for PixArt mouse
HID: intel-ish-hid: Fix a use after free in load_fw_from_host()
Pull ARM SoC fixes from Olof Johansson:
"A smaller batch of fixes, nothing that stands out as risky or scary.
Mostly DTS tweaks for a few issues:
- GPU fixlets for Meson
- CPU idle fix for LS1028A
- PWM interrupt fixes for i.MX6UL
Also, enable a driver (FSL_EDMA) on arm64 defconfig, and a warning and
two MAINTAINER tweaks"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: dts: imx6ul: fix PWM[1-4] interrupts
ARM: omap2: remove incorrect __init annotation
ARM: dts: gemini Fix up DNS-313 compatible string
ARM: dts: Blank D-Link DIR-685 console
arm64: defconfig: Enable FSL_EDMA driver
arm64: dts: ls1028a: Fix CPU idle fail.
MAINTAINERS: BCM53573: Add internal Broadcom mailing list
MAINTAINERS: BCM2835: Add internal Broadcom mailing list
ARM: dts: meson8b: fix the operating voltage of the Mali GPU
ARM: dts: meson8b: drop undocumented property from the Mali GPU node
ARM: dts: meson8: fix GPU interrupts and drop an undocumented property
Pull AFS fixes from David Howells:
"The in-kernel AFS client has been undergoing testing on opendev.org on
one of their mirror machines. They are using AFS to hold data that is
then served via apache, and Ian Wienand had reported seeing oopses,
spontaneous machine reboots and updates to volumes going missing. This
patch series appears to have fixed the problem, very probably due to
patch (2), but it's not 100% certain.
(1) Fix the printing of the "vnode modified" warning to exclude checks
on files for which we don't have a callback promise from the
server (and so don't expect the server to tell us when it
changes).
Without this, for every file or directory for which we still have
an in-core inode that gets changed on the server, we may get a
message logged when we next look at it. This can happen in bulk
if, for instance, someone does "vos release" to update a R/O
volume from a R/W volume and a whole set of files are all changed
together.
We only really want to log a message if the file changed and the
server didn't tell us about it or we failed to track the state
internally.
(2) Fix accidental corruption of either afs_vlserver struct objects or
the the following memory locations (which could hold anything).
The issue is caused by a union that points to two different
structs in struct afs_call (to save space in the struct). The call
cleanup code assumes that it can simply call the cleanup for one
of those structs if not NULL - when it might be actually pointing
to the other struct.
This means that every Volume Location RPC op is going to corrupt
something.
(3) Fix an uninitialised spinlock. This isn't too bad, it just causes
a one-off warning if lockdep is enabled when "vos release" is
called, but the spinlock still behaves correctly.
(4) Fix the setting of i_block in the inode. This causes du, for
example, to produce incorrect results, but otherwise should not be
dangerous to the kernel"
* tag 'afs-fixes-20190620' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix setting of i_blocks
afs: Fix uninitialised spinlock afs_volume::cb_break_lock
afs: Fix vlserver record corruption
afs: Fix over zealous "vnode modified" warnings
Pull arch/csky fixup from Guo Ren:
"A fixup patch for rt_sigframe in signal.c"
* tag 'csky-for-linus-5.2-fixup-gcc-unwind' of git://github.com/c-sky/csky-linux:
csky: Fixup libgcc unwind error
Pull networking fixes from David Miller:
1) Fix ppp_mppe crypto soft dependencies, from Takashi Iawi.
2) Fix TX completion to be finite, from Sergej Benilov.
3) Use register_pernet_device to avoid a dst leak in tipc, from Xin
Long.
4) Double free of TX cleanup in Dirk van der Merwe.
5) Memory leak in packet_set_ring(), from Eric Dumazet.
6) Out of bounds read in qmi_wwan, from Bjørn Mork.
7) Fix iif used in mcast/bcast looped back packets, from Stephen
Suryaputra.
8) Fix neighbour resolution on raw ipv6 sockets, from Nicolas Dichtel.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (25 commits)
af_packet: Block execution of tasks waiting for transmit to complete in AF_PACKET
sctp: change to hold sk after auth shkey is created successfully
ipv6: fix neighbour resolution with raw socket
ipv6: constify rt6_nexthop()
net: dsa: microchip: Use gpiod_set_value_cansleep()
net: aquantia: fix vlans not working over bridged network
ipv4: reset rt_iif for recirculated mcast/bcast out pkts
team: Always enable vlan tx offload
net/smc: Fix error path in smc_init
net/smc: hold conns_lock before calling smc_lgr_register_conn()
bonding: Always enable vlan tx offload
net/ipv6: Fix misuse of proc_dointvec "skip_notify_on_dev_down"
ipv4: Use return value of inet_iif() for __raw_v4_lookup in the while loop
qmi_wwan: Fix out-of-bounds read
tipc: check msg->req data len in tipc_nl_compat_bearer_disable
net: macb: do not copy the mac address if NULL
net/packet: fix memory leak in packet_set_ring()
net/tls: fix page double free on TX cleanup
net/sched: cbs: Fix error path of cbs_module_init
tipc: change to use register_pernet_device
...
The stacktrace_map_raw_tp BPF selftest is failing because the RIP saved by
perf_arch_fetch_caller_regs() isn't getting saved by perf_callchain_kernel().
This was broken by the following commit:
d15d356887 ("perf/x86: Make perf callchains work without CONFIG_FRAME_POINTER")
With that change, when starting with non-HW regs, the unwinder starts
with the current stack frame and unwinds until it passes up the frame
which called perf_arch_fetch_caller_regs(). So regs->ip needs to be
saved deliberately.
Fixes: d15d356887 ("perf/x86: Make perf callchains work without CONFIG_FRAME_POINTER")
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Kairui Song <kasong@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@alien8.de>
Link: https://lkml.kernel.org/r/3975a298fa52b506fea32666d8ff6a13467eee6d.1561595111.git.jpoimboe@redhat.com
When ceph_mdsc_build_path is handed a positive dentry, it will return a
zero-length path string with the base set to that dentry. This is not
what we want. Always include at least one path component in the string.
ceph_mdsc_build_path has behaved this way for a long time but it didn't
matter until recent d_name handling rework.
Fixes: 964fff7491 ("ceph: use ceph_mdsc_build_path instead of clone_dentry_name")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
During suspend/resume, mtk_eint_mask may be called while
wake_mask is active. For example, this happens if a wake-source
with an active interrupt handler wakes the system:
irq/pm.c:irq_pm_check_wakeup would disable the interrupt, so
that it can be handled later on in the resume flow.
However, this may happen before mtk_eint_do_resume is called:
in this case, wake_mask is loaded, and cur_mask is restored
from an older copy, re-enabling the interrupt, and causing
an interrupt storm (especially for level interrupts).
Step by step, for a line that has both wake and interrupt enabled:
1. cur_mask[irq] = 1; wake_mask[irq] = 1; EINT_EN[irq] = 1 (interrupt
enabled at hardware level)
2. System suspends, resumes due to that line (at this stage EINT_EN
== wake_mask)
3. irq_pm_check_wakeup is called, and disables the interrupt =>
EINT_EN[irq] = 0, but we still have cur_mask[irq] = 1
4. mtk_eint_do_resume is called, and restores EINT_EN = cur_mask, so
it reenables EINT_EN[irq] = 1 => interrupt storm as the driver
is not yet ready to handle the interrupt.
This patch fixes the issue in step 3, by recording all mask/unmask
changes in cur_mask. This also avoids the need to read the current
mask in eint_do_suspend, and we can remove mtk_eint_chip_read_mask
function.
The interrupt will be re-enabled properly later on, sometimes after
mtk_eint_do_resume, when the driver is ready to handle it.
Fixes: 58a5e1b64b ("pinctrl: mediatek: Implement wake handler and suspend resume")
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Remove the d_is_dir() check from tgid_pidfd_to_pid().
It is pointless since you should never get &proc_tgid_base_operations
for f_op on a non-directory.
Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Christian Brauner <christian@brauner.io>
anon_inode_getfd() should be used *ONLY* in situations when we are
guaranteed to be past the last failure point (including copying the
descriptor number to userland, at that). And ksys_close() should
not be used for cleanups at all.
anon_inode_getfile() is there for all nontrivial cases like that.
Just use that...
Fixes: b3e5838252 ("clone: add CLONE_PIDFD")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Christian Brauner <christian@brauner.io>
Setting invalid value to /sys/devices/system/cpu/cpuX/hotplug/fail
can control `struct cpuhp_step *sp` address, results in the following
global-out-of-bounds read.
Reproducer:
# echo -2 > /sys/devices/system/cpu/cpu0/hotplug/fail
KASAN report:
BUG: KASAN: global-out-of-bounds in write_cpuhp_fail+0x2cd/0x2e0
Read of size 8 at addr ffffffff89734438 by task bash/1941
CPU: 0 PID: 1941 Comm: bash Not tainted 5.2.0-rc6+ #31
Call Trace:
write_cpuhp_fail+0x2cd/0x2e0
dev_attr_store+0x58/0x80
sysfs_kf_write+0x13d/0x1a0
kernfs_fop_write+0x2bc/0x460
vfs_write+0x1e1/0x560
ksys_write+0x126/0x250
do_syscall_64+0xc1/0x390
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f05e4f4c970
The buggy address belongs to the variable:
cpu_hotplug_lock+0x98/0xa0
Memory state around the buggy address:
ffffffff89734300: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
ffffffff89734380: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffff89734400: 00 00 00 00 fa fa fa fa 00 00 00 00 fa fa fa fa
^
ffffffff89734480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffffff89734500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Add a sanity check for the value written from user space.
Fixes: 1db49484f2 ("smp/hotplug: Hotplug state fail injection")
Signed-off-by: Eiichi Tsukata <devel@etsukata.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: peterz@infradead.org
Link: https://lkml.kernel.org/r/20190627024732.31672-1-devel@etsukata.com
When an application is run that:
a) Sets its scheduler to be SCHED_FIFO
and
b) Opens a memory mapped AF_PACKET socket, and sends frames with the
MSG_DONTWAIT flag cleared, its possible for the application to hang
forever in the kernel. This occurs because when waiting, the code in
tpacket_snd calls schedule, which under normal circumstances allows
other tasks to run, including ksoftirqd, which in some cases is
responsible for freeing the transmitted skb (which in AF_PACKET calls a
destructor that flips the status bit of the transmitted frame back to
available, allowing the transmitting task to complete).
However, when the calling application is SCHED_FIFO, its priority is
such that the schedule call immediately places the task back on the cpu,
preventing ksoftirqd from freeing the skb, which in turn prevents the
transmitting task from detecting that the transmission is complete.
We can fix this by converting the schedule call to a completion
mechanism. By using a completion queue, we force the calling task, when
it detects there are no more frames to send, to schedule itself off the
cpu until such time as the last transmitted skb is freed, allowing
forward progress to be made.
Tested by myself and the reporter, with good results
Change Notes:
V1->V2:
Enhance the sleep logic to support being interruptible and
allowing for honoring to SK_SNDTIMEO (Willem de Bruijn)
V2->V3:
Rearrage the point at which we wait for the completion queue, to
avoid needing to check for ph/skb being null at the end of the loop.
Also move the complete call to the skb destructor to avoid needing to
modify __packet_set_status. Also gate calling complete on
packet_read_pending returning zero to avoid multiple calls to complete.
(Willem de Bruijn)
Move timeo computation within loop, to re-fetch the socket
timeout since we also use the timeo variable to record the return code
from the wait_for_complete call (Neil Horman)
V3->V4:
Willem has requested that the control flow be restored to the
previous state. Doing so lets us eliminate the need for the
po->wait_on_complete flag variable, and lets us get rid of the
packet_next_frame function, but introduces another complexity.
Specifically, but using the packet pending count, we can, if an
applications calls sendmsg multiple times with MSG_DONTWAIT set, each
set of transmitted frames, when complete, will cause
tpacket_destruct_skb to issue a complete call, for which there will
never be a wait_on_completion call. This imbalance will lead to any
future call to wait_for_completion here to return early, when the frames
they sent may not have completed. To correct this, we need to re-init
the completion queue on every call to tpacket_snd before we enter the
loop so as to ensure we wait properly for the frames we send in this
iteration.
Change the timeout and interrupted gotos to out_put rather than
out_status so that we don't try to free a non-existant skb
Clean up some extra newlines (Willem de Bruijn)
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reported-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
At Bin Meng's request, add the MIT license as an option for the SiFive
FU540 PRCI header file.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
There are platforms that do not call pm_set_suspend_via_firmware(),
so pm_suspend_via_firmware() returns 'false' on them, but the power
states of PCI devices (PCIe ports in particular) are changed as a
result of powering down core platform components during system-wide
suspend. Thus the pm_suspend_via_firmware() checks in
pci_pm_suspend_noirq() and pci_pm_resume_noirq() introduced by
commit 3e26c5feed ("PCI: PM: Skip devices in D0 for suspend-to-
idle") are not sufficient to determine that devices left in D0
during suspend will remain in D0 during resume and so the bus-level
power management can be skipped for them.
For this reason, introduce a new global suspend flag,
PM_SUSPEND_FLAG_NO_PLATFORM, set it for suspend-to-idle only
and replace the pm_suspend_via_firmware() checks mentioned above
with checks against this flag.
Fixes: 3e26c5feed ("PCI: PM: Skip devices in D0 for suspend-to-idle")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Nicolas Dichtel says:
====================
ipv6: fix neighbour resolution with raw socket
The first patch prepares the fix, it constify rt6_nexthop().
The detail of the bug is explained in the second patch.
v1 -> v2:
- fix compilation warnings
- split the initial patch
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The scenario is the following: the user uses a raw socket to send an ipv6
packet, destinated to a not-connected network, and specify a connected nh.
Here is the corresponding python script to reproduce this scenario:
import socket
IPPROTO_RAW = 255
send_s = socket.socket(socket.AF_INET6, socket.SOCK_RAW, IPPROTO_RAW)
# scapy
# p = IPv6(src='fd00:100::1', dst='fd00:200::fa')/ICMPv6EchoRequest()
# str(p)
req = b'`\x00\x00\x00\x00\x08:@\xfd\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xfd\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfa\x80\x00\x81\xc0\x00\x00\x00\x00'
send_s.sendto(req, ('fd00:175::2', 0, 0, 0))
fd00:175::/64 is a connected route and fd00:200::fa is not a connected
host.
With this scenario, the kernel starts by sending a NS to resolve
fd00:175::2. When it receives the NA, it flushes its queue and try to send
the initial packet. But instead of sending it, it sends another NS to
resolve fd00:200::fa, which obvioulsy fails, thus the packet is dropped. If
the user sends again the packet, it now uses the right nh (fd00:175::2).
The problem is that ip6_dst_lookup_neigh() uses the rt6i_gateway, which is
:: because the associated route is a connected route, thus it uses the dst
addr of the packet. Let's use rt6_nexthop() to choose the right nh.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no functional change in this patch, it only prepares the next one.
rt6_nexthop() will be used by ip6_dst_lookup_neigh(), which uses const
variables.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reported-by: kbuild test robot <lkp@intel.com>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In configuration of vlan over bridge over aquantia device
it was found that vlan tagged traffic is dropped on chip.
The reason is that bridge device enables promisc mode,
but in atlantic chip vlan filters will still apply.
So we have to corellate promisc settings with vlan configuration.
The solution is to track in a separate state variable the
need of vlan forced promisc. And also consider generic
promisc configuration when doing vlan filter config.
Fixes: 7975d2aff5 ("net: aquantia: add support of rx-vlan-filter offload")
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Multicast or broadcast egress packets have rt_iif set to the oif. These
packets might be recirculated back as input and lookup to the raw
sockets may fail because they are bound to the incoming interface
(skb_iif). If rt_iif is not zero, during the lookup, inet_iif() function
returns rt_iif instead of skb_iif. Hence, the lookup fails.
v2: Make it non vrf specific (David Ahern). Reword the changelog to
reflect it.
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rob pointed out that one of the examples in the RISC-V 'cpus' YAML
schema results in warnings from 'make dt_binding_check'. Fix these.
While here, make the whitespace in the second example consistent
with the first example.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org> # for fixing the dtc warnings
As per the convention for any SOC device with external connection,
define only device DT node in SOC DTSi file with status = "disabled"
and enable device in Board DTS file with status = "okay"
Reported-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Currently, riscv upstream defconfig doesn't let you boot
through userspace if rootfs is on the SD card.
Let's enable MMC & SPI drivers as well so that one can boot
to the user space using default config in upstream kernel.
While here, enable automatic mounting of devtmpfs to simplify
kernel testing with minimal root filesystems. (pjw)
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
[paul.walmsley@sifive.com: mention the DEVTMPFS_MOUNT change in the
patch description]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
We should rather have vlan_tci filled all the way down
to the transmitting netdevice and let it do the hw/sw
vlan implementation.
Suggested-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun says:
====================
net/smc: fixes 2019-06-26
here are 2 small smc fixes for the net tree.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If register_pernet_subsys success in smc_init,
we should cleanup it in case any other error.
Fixes: 64e28b52c7 (net/smc: add pnet table namespace support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After smc_lgr_create(), the newly created link group is added
to smc_lgr_list, thus is accessible from other context.
Although link group creation is serialized by
smc_create_lgr_pending, the new link group may still be accessed
concurrently. For example, if ib_device is no longer active,
smc_ib_port_event_work() will call smc_port_terminate(), which
in turn will call __smc_lgr_terminate() on every link group of
this device. So conns_lock is required here.
Signed-off-by: Huaping Zhou <zhp@smail.nju.edu.cn>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We build vlan on top of bonding interface, which vlan offload
is off, bond mode is 802.3ad (LACP) and xmit_hash_policy is
BOND_XMIT_POLICY_ENCAP34.
Because vlan tx offload is off, vlan tci is cleared and skb push
the vlan header in validate_xmit_vlan() while sending from vlan
devices. Then in bond_xmit_hash, __skb_flow_dissect() fails to
get information from protocol headers encapsulated within vlan,
because 'nhoff' is points to IP header, so bond hashing is based
on layer 2 info, which fails to distribute packets across slaves.
This patch always enable bonding's vlan tx offload, pass the vlan
packets to the slave devices with vlan tci, let them to handle
vlan implementation.
Fixes: 278339a42a ("bonding: propogate vlan_features to bonding master")
Suggested-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bits set in x86_spec_ctrl_mask are used to calculate the guest's value
of SPEC_CTRL that is written to the MSR before VMENTRY, and control which
mitigations the guest can enable. In the case of SSBD, unless the host has
enabled SSBD always on mode (by passing "spec_store_bypass_disable=on" in
the kernel parameters), the SSBD bit is not set in the mask and the guest
can not properly enable the SSBD always on mitigation mode.
This has been confirmed by running the SSBD PoC on a guest using the SSBD
always on mitigation mode (booted with kernel parameter
"spec_store_bypass_disable=on"), and verifying that the guest is vulnerable
unless the host is also using SSBD always on mode. In addition, the guest
OS incorrectly reports the SSB vulnerability as mitigated.
Always set the SSBD bit in x86_spec_ctrl_mask when the host CPU supports
it, allowing the guest to use SSBD whether or not the host has chosen to
enable the mitigation in any of its modes.
Fixes: be6fcb5478 ("x86/bugs: Rework spec_ctrl base and mask logic")
Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Mark Kanda <mark.kanda@oracle.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: bp@alien8.de
Cc: rkrcmar@redhat.com
Cc: kvm@vger.kernel.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1560187210-11054-1-git-send-email-alejandro.j.jimenez@oracle.com
Before suspending, mtk-eint would set the interrupt mask to the
one in wake_mask. However, some of these interrupts may not have a
corresponding interrupt handler, or the interrupt may be disabled.
On resume, the eint irq handler would trigger nevertheless,
and irq/pm.c:irq_pm_check_wakeup would be called, which would
try to call irq_disable. However, if the interrupt is not enabled
(irqd_irq_disabled(&desc->irq_data) is true), the call does nothing,
and the interrupt is left enabled in the eint driver.
Especially for level-sensitive interrupts, this will lead to an
interrupt storm on resume.
If we detect that an interrupt is only in wake_mask, but not in
cur_mask, we can just mask it out immediately (as mtk_eint_resume
would do anyway at a later stage in the resume sequence, when
restoring cur_mask).
Fixes: bf22ff45be ("genirq: Avoid unnecessary low level irq function calls")
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently, in suspend() and resume(), ishtp client drivers are using
driver_data to get "struct ishtp_cl_device" object which is set by
bus driver. It's wrong since the driver_data should not be owned bus.
driver_data should be owned by the corresponding ishtp client driver.
Due to this, some ishtp client driver like cros_ec_ishtp which uses
its driver_data to transfer its data to its child doesn't work correctly.
So this patch removes setting driver_data in bus drier and instead of
using driver_data to get "struct ishtp_cl_device", since "struct device"
is embedded in "struct ishtp_cl_device", we introduce a helper function
that returns "struct ishtp_cl_device" from "struct device".
Signed-off-by: Hyungwoo Yang <hyungwoo.yang@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
There's a new ALPS touchpad/pointstick combo device that requires
MT_CLS_WIN_8_DUAL to make its pointsitck work as a mouse.
The device can be found on HP ZBook 17 G5.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The HID++ spec also defines very long HID++ reports, with a reportid of
0x12. The MX5000 and MX5500 keyboards use 0x12 output reports for sending
messages to display on their buildin LCD.
Userspace (libmx5000) supports this, in order for this to work when talking
to the HID devices instantiated for the keyboard by hid-logitech-dj,
we need to properly forward these reports to the device.
This commit fixes logi_dj_ll_raw_request not forwarding these reports.
Fixes: f2113c3020 ("HID: logitech-dj: add support for Logitech Bluetooth Mini-Receiver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
We have to print the filename first before we can kfree it.
Fixes: 91b228107d ("HID: intel-ish-hid: ISH firmware loader client driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The struct rt_sigframe is also defined in libgcc/config/csky/linux-unwind.h
of gcc. Although there is no use for the first three word space, we must
keep them the same with linux-unwind.h for member position.
The BUG is found in glibc test with the tst-cancel02.
The BUG is from commit:bf2416829362 of linux-5.2-rc1 merge window.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Signed-off-by: Mao Han <han_mao@c-sky.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Kyle has reported occasional crashes when booting a kernel in 5-level
paging mode with KASLR enabled:
WARNING: CPU: 0 PID: 0 at arch/x86/mm/init_64.c:87 phys_p4d_init+0x1d4/0x1ea
RIP: 0010:phys_p4d_init+0x1d4/0x1ea
Call Trace:
__kernel_physical_mapping_init+0x10a/0x35c
kernel_physical_mapping_init+0xe/0x10
init_memory_mapping+0x1aa/0x3b0
init_range_memory_mapping+0xc8/0x116
init_mem_mapping+0x225/0x2eb
setup_arch+0x6ff/0xcf5
start_kernel+0x64/0x53b
? copy_bootdata+0x1f/0xce
x86_64_start_reservations+0x24/0x26
x86_64_start_kernel+0x8a/0x8d
secondary_startup_64+0xb6/0xc0
which causes later:
BUG: unable to handle page fault for address: ff484d019580eff8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
BAD
Oops: 0000 [#1] SMP NOPTI
RIP: 0010:fill_pud+0x13/0x130
Call Trace:
set_pte_vaddr_p4d+0x2e/0x50
set_pte_vaddr+0x6f/0xb0
__native_set_fixmap+0x28/0x40
native_set_fixmap+0x39/0x70
register_lapic_address+0x49/0xb6
early_acpi_boot_init+0xa5/0xde
setup_arch+0x944/0xcf5
start_kernel+0x64/0x53b
Kyle bisected the issue to commit b569c18434 ("x86/mm/KASLR: Reduce
randomization granularity for 5-level paging to 1GB")
Before this commit PAGE_OFFSET was always aligned to P4D_SIZE when booting
5-level paging mode. But now only PUD_SIZE alignment is guaranteed.
In the case I was able to reproduce the following vaddr/paddr values were
observed in phys_p4d_init():
Iteration vaddr paddr
1 0xff4228027fe00000 0x033fe00000
2 0xff42287f40000000 0x8000000000
'vaddr' in both cases belongs to the same p4d entry.
But due to the original assumption that PAGE_OFFSET is aligned to P4D_SIZE
this overlap cannot be handled correctly. The code assumes strictly aligned
entries and unconditionally increments the index into the P4D table, which
creates false duplicate entries. Once the index reaches the end, the last
entry in the page table is missing.
Aside of that the 'paddr >= paddr_end' condition can evaluate wrong which
causes an P4D entry to be cleared incorrectly.
Change the loop in phys_p4d_init() to walk purely based on virtual
addresses like __kernel_physical_mapping_init() does. This makes it work
correctly with unaligned virtual addresses.
Fixes: b569c18434 ("x86/mm/KASLR: Reduce randomization granularity for 5-level paging to 1GB")
Reported-by: Kyle Pelton <kyle.d.pelton@intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Kyle Pelton <kyle.d.pelton@intel.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190624123150.920-1-kirill.shutemov@linux.intel.com
A kernel which boots in 5-level paging mode crashes in a small percentage
of cases if KASLR is enabled.
This issue was tracked down to the case when the kernel image unpacks in a
way that it crosses an 1G boundary. The crash is caused by an overrun of
the PMD page table in __startup_64() and corruption of P4D page table
allocated next to it. This particular issue is not visible with 4-level
paging as P4D page tables are not used.
But the P4D and the PUD calculation have similar problems.
The PMD index calculation is wrong due to operator precedence, which fails
to confine the PMDs in the PMD array on wrap around.
The P4D calculation for 5-level paging and the PUD calculation calculate
the first index correctly, but then blindly increment it which causes the
same issue when a kernel image is located across a 512G and for 5-level
paging across a 46T boundary.
This wrap around mishandling was introduced when these parts moved from
assembly to C.
Restore it to the correct behaviour.
Fixes: c88d71508e ("x86/boot/64: Rewrite startup_64() in C")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190620112345.28833-1-kirill.shutemov@linux.intel.com
/proc/sys/net/ipv6/route/skip_notify_on_dev_down assumes given value to be
0 or 1. Use proc_dointvec_minmax instead of proc_dointvec.
Fixes: 7c6bb7d2fa ("net/ipv6: Add knob to skip DELROUTE message ondevice down")
Signed-off-by: Eiichi Tsukata <devel@etsukata.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 19e4e76806 ("ipv4: Fix raw socket lookup for local
traffic"), the dif argument to __raw_v4_lookup() is coming from the
returned value of inet_iif() but the change was done only for the first
lookup. Subsequent lookups in the while loop still use skb->dev->ifIndex.
Fixes: 19e4e76806 ("ipv4: Fix raw socket lookup for local traffic")
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
DM verity should also use DMERR_LIMIT to limit repeat data block
corruption messages.
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
For the first call to realloc_argv() in dm_split_args(), old_argv is
NULL and size is zero. Then memcpy is called, with the NULL old_argv
as the source argument and a zero size argument. AFAIK, this is
undefined behavior and generates the following warning when compiled
with UBSAN on ppc64le:
In file included from ./arch/powerpc/include/asm/paca.h:19,
from ./arch/powerpc/include/asm/current.h:16,
from ./include/linux/sched.h:12,
from ./include/linux/kthread.h:6,
from drivers/md/dm-core.h:12,
from drivers/md/dm-table.c:8:
In function 'memcpy',
inlined from 'realloc_argv' at drivers/md/dm-table.c:565:3,
inlined from 'dm_split_args' at drivers/md/dm-table.c:588:9:
./include/linux/string.h:345:9: error: argument 2 null where non-null expected [-Werror=nonnull]
return __builtin_memcpy(p, q, size);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-table.c: In function 'dm_split_args':
./include/linux/string.h:345:9: note: in a call to built-in function '__builtin_memcpy'
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Currently, although we submit super bios in order (and super.nr_entries
is incremented by each logged entry), submit_bio() is async so each
super sector may not be written to log device in order and then the
final nr_entries may be smaller than it should be.
This problem can be reproduced by the xfstests generic/455 with ext4:
QA output created by 455
-Silence is golden
+mark 'end' does not exist
Fix this by serializing submission of super sectors to make sure each
is written to the log disk in order.
Fixes: 0e9cebe724 ("dm: add log writes target")
Cc: stable@vger.kernel.org
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Suggested-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
These printing macros already add a trailing newline, so having another
one here just makes for blank lines when these prints are enabled.
Remove these needless newlines.
Fixes: 6bbc923dfc ("dm: add support to directly boot to a mapped device")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
By mistake, there is a '&' instead of a '==' in the definition of the
macro BFQQ_TOTALLY_SEEKY. This commit replaces the wrong operator with
the correct one.
Fixes: 7074f076ff ("block, bfq: do not tag totally seeky queues as soft rt")
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The actual layout for OCELOT_GPIO_ALT[01] when there are more than 32 pins
is interleaved, i.e. OCELOT_GPIO_ALT0[0], OCELOT_GPIO_ALT1[0],
OCELOT_GPIO_ALT0[1], OCELOT_GPIO_ALT1[1]. Introduce a new REG_ALT macro to
facilitate the register offset calculation and use it where necessary.
Fixes: da801ab56a pinctrl: ocelot: add MSCC Jaguar2 support
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The third argument passed to REG is not the correct one and
ocelot_gpio_set_direction is not working for pins after 31. Fix that by
passing the pin number instead of the modulo 32 value.
Fixes: da801ab56a pinctrl: ocelot: add MSCC Jaguar2 support
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently probing of the mcp23s08 results in an error message
"detected irqchip that is shared with multiple gpiochips:
please fix the driver"
This is due to the following:
Call to mcp23s08_irqchip_setup() with call hierarchy:
mcp23s08_irqchip_setup()
gpiochip_irqchip_add_nested()
gpiochip_irqchip_add_key()
gpiochip_set_irq_hooks()
Call to devm_gpiochip_add_data() with call hierarchy:
devm_gpiochip_add_data()
gpiochip_add_data_with_key()
gpiochip_add_irqchip()
gpiochip_set_irq_hooks()
The gpiochip_add_irqchip() returns immediately if there isn't a irqchip
but we added a irqchip due to the previous mcp23s08_irqchip_setup()
call. So it calls gpiochip_set_irq_hooks() a second time.
Fix this by moving the call to devm_gpiochip_add_data before
the call to mcp23s08_irqchip_setup
Fixes: 02e389e63e ("pinctrl: mcp23s08: fix irq setup order")
Suggested-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
i.MX fixes for 5.2, round 3:
- A recent testing by Sébastien discovers that the PWM interrupts of
i.MX6UL were wrongly coded in device tree. It's a fix for it.
* tag 'imx-fixes-5.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6ul: fix PWM[1-4] interrupts
Signed-off-by: Olof Johansson <olof@lixom.net>
ARM: dts: Amlogic fixes for v5.2-rc
- fix GPU interrupts and operating voltage
* tag 'amlogic-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
ARM: dts: meson8b: fix the operating voltage of the Mali GPU
ARM: dts: meson8b: drop undocumented property from the Mali GPU node
ARM: dts: meson8: fix GPU interrupts and drop an undocumented property
Signed-off-by: Olof Johansson <olof@lixom.net>
The early machine check runs in real mode, so locking is unnecessary.
Worse, the windup does not restore AMR, so this can result in a false
KUAP fault after a recoverable machine check hits inside a user copy
operation.
Fix this similarly to HMI by just avoiding the kuap lock in the
early machine check handler (it will be set by the late handler that
runs in virtual mode if that runs). If the virtual mode handler is
reached, it will lock and restore the AMR.
Fixes: 890274c2dc ("powerpc/64s: Implement KUAP for Radix MMU")
Cc: Russell Currey <ruscur@russell.cc>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Pull parisc fix from Helge Deller:
"Add missing PCREL64 relocation in module loader to fix module load
errors when the static branch and JUMP_LABEL feature is enabled on
a 64-bit kernel"
* 'parisc-5.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix module loading error with JUMP_LABEL feature
Pull mfd bugfix from Lee Jones.
Fix stmfx type confusion between regmap_read() (which takes an "u32")
and the bitmap operations (which take an "unsigned long" array).
* tag 'mfd-fixes-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
mfd: stmfx: Fix an endian bug in stmfx_irq_handler()
mfd: stmfx: Uninitialized variable in stmfx_irq_handler()
The syzbot reported
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xca/0x13e lib/dump_stack.c:113
print_address_description+0x67/0x231 mm/kasan/report.c:188
__kasan_report.cold+0x1a/0x32 mm/kasan/report.c:317
kasan_report+0xe/0x20 mm/kasan/common.c:614
qmi_wwan_probe+0x342/0x360 drivers/net/usb/qmi_wwan.c:1417
usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361
really_probe+0x281/0x660 drivers/base/dd.c:509
driver_probe_device+0x104/0x210 drivers/base/dd.c:670
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:777
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
Caused by too many confusing indirections and casts.
id->driver_info is a pointer stored in a long. We want the
pointer here, not the address of it.
Thanks-to: Hillf Danton <hdanton@sina.com>
Reported-by: syzbot+b68605d7fadd21510de1@syzkaller.appspotmail.com
Cc: Kristian Evensen <kristian.evensen@gmail.com>
Fixes: e4bf63482c ("qmi_wwan: Add quirk for Quectel dynamic config")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is to fix an uninit-value issue, reported by syzbot:
BUG: KMSAN: uninit-value in memchr+0xce/0x110 lib/string.c:981
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x191/0x1f0 lib/dump_stack.c:113
kmsan_report+0x130/0x2a0 mm/kmsan/kmsan.c:622
__msan_warning+0x75/0xe0 mm/kmsan/kmsan_instr.c:310
memchr+0xce/0x110 lib/string.c:981
string_is_valid net/tipc/netlink_compat.c:176 [inline]
tipc_nl_compat_bearer_disable+0x2a1/0x480 net/tipc/netlink_compat.c:449
__tipc_nl_compat_doit net/tipc/netlink_compat.c:327 [inline]
tipc_nl_compat_doit+0x3ac/0xb00 net/tipc/netlink_compat.c:360
tipc_nl_compat_handle net/tipc/netlink_compat.c:1178 [inline]
tipc_nl_compat_recv+0x1b1b/0x27b0 net/tipc/netlink_compat.c:1281
TLV_GET_DATA_LEN() may return a negtive int value, which will be
used as size_t (becoming a big unsigned long) passed into memchr,
cause this issue.
Similar to what it does in tipc_nl_compat_bearer_enable(), this
fix is to return -EINVAL when TLV_GET_DATA_LEN() is negtive in
tipc_nl_compat_bearer_disable(), as well as in
tipc_nl_compat_link_stat_dump() and tipc_nl_compat_link_reset_stats().
v1->v2:
- add the missing Fixes tags per Eric's request.
Fixes: 0762216c0a ("tipc: fix uninit-value in tipc_nl_compat_bearer_enable")
Fixes: 8b66fee7f8 ("tipc: fix uninit-value in tipc_nl_compat_link_reset_stats")
Reported-by: syzbot+30eaa8bf392f7fafffaf@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes the MAC address setup in the probe. The MAC address
retrieved using of_get_mac_address was checked for not containing an
error, but it may also be NULL which wasn't tested. Fix it by replacing
IS_ERR with IS_ERR_OR_NULL.
Fixes: 541ddc66d6 ("net: macb: support of_get_mac_address new ERR_PTR error")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's not okay to cast a "u32 *" to "unsigned long *" when you are
doing a for_each_set_bit() loop because that will break on big
endian systems.
Fixes: 386145601b82 ("mfd: stmfx: Uninitialized variable in stmfx_irq_handler()")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Initialize pidfd to an invalid descriptor, to fail gracefully on
those kernels that do not implement CLONE_PIDFD and leave pidfd
unchanged.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Christian Brauner <christian@brauner.io>
Give userspace a cheap and reliable way to tell whether CLONE_PIDFD is
supported by the kernel or not. The easiest way is to pass an invalid
file descriptor value in parent_tidptr, perform the syscall and verify
that parent_tidptr has been changed to a valid file descriptor value.
CLONE_PIDFD uses parent_tidptr to return pidfds. CLONE_PARENT_SETTID
will use parent_tidptr to return the tid of the parent. The two flags
cannot be used together. Old kernels that only support
CLONE_PARENT_SETTID will not verify the value pointed to by
parent_tidptr. This behavior is unchanged even with the introduction of
CLONE_PIDFD.
However, if CLONE_PIDFD is specified the kernel will currently check the
value pointed to by parent_tidptr before placing the pidfd in the memory
pointed to. EINVAL will be returned if the value in parent_tidptr is not
0.
If CLONE_PIDFD is supported and fd 0 is closed, then the returned pidfd
can and likely will be 0 and parent_tidptr will be unchanged. This means
userspace must either check CLONE_PIDFD support beforehand or check that
fd 0 is not closed when invoking CLONE_PIDFD.
The check for pidfd == 0 was introduced during the v5.2 merge window by
commit b3e5838252 ("clone: add CLONE_PIDFD") to ensure that
CLONE_PIDFD could be potentially extended by passing in flags through
the return argument.
However, that extension would look horrible, and with the upcoming
introduction of the clone3 syscall in v5.3 there is no need to extend
legacy clone syscall this way. (Even if it would need to be extended,
CLONE_DETACHED can be reused with CLONE_PIDFD.)
So remove the pidfd == 0 check. Userspace that needs to be portable to
kernels without CLONE_PIDFD support can then be advised to initialize
pidfd to -1 and check the pidfd value returned by CLONE_PIDFD.
Fixes: b3e5838252 ("clone: add CLONE_PIDFD")
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Christian Brauner <christian@brauner.io>
Pull mtd fixes from Miquel Raynal:
- Set the raw NAND number of targets to the right value
- Fix a bug uncovered by a recent patch on Spansion SPI-NOR flashes
* tag 'mtd/fixes-for-5.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: spi-nor: use 16-bit WRR command when QE is set on spansion flashes
mtd: rawnand: initialize ntargets with maxchips
Pull powerpc fixes from Michael Ellerman:
"One fix for a bug in our context id handling on 64-bit hash CPUs,
which can lead to unrelated processes being able to read/write to each
other's virtual memory. See the commit for full details.
That is the fix for CVE-2019-12817.
This also adds a kernel selftest for the bug"
* tag 'powerpc-5.2-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
selftests/powerpc: Add test of fork with mapping above 512TB
powerpc/mm/64s/hash: Reallocate context ids on fork
According to the i.MX6UL/L RM, table 3.1 "ARM Cortex A7 domain interrupt
summary", the interrupts for the PWM[1-4] go from 83 to 86.
Fixes: b9901fe84f ("ARM: dts: imx6ul: add pwm[1-4] nodes")
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Pull auxdisplay cleanup from Miguel Ojeda:
"A cleanup for two drivers in auxdisplay: convert them to use
vm_map_pages_zero() (Souptick Joarder)"
* tag 'auxdisplay-for-linus-v5.2-rc7' of git://github.com/ojeda/linux:
auxdisplay/ht16k33.c: Convert to use vm_map_pages_zero()
auxdisplay/cfag12864bfb.c: Convert to use vm_map_pages_zero()
If register_qdisc fails, we should unregister
netdevice notifier.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: e0a7683d30 ("net/sched: cbs: fix port_rate miscalculation")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is to fix a dst defcnt leak, which can be reproduced by doing:
# ip net a c; ip net a s; modprobe tipc
# ip net e s ip l a n eth1 type veth peer n eth1 netns c
# ip net e c ip l s lo up; ip net e c ip l s eth1 up
# ip net e s ip l s lo up; ip net e s ip l s eth1 up
# ip net e c ip a a 1.1.1.2/8 dev eth1
# ip net e s ip a a 1.1.1.1/8 dev eth1
# ip net e c tipc b e m udp n u1 localip 1.1.1.2
# ip net e s tipc b e m udp n u1 localip 1.1.1.1
# ip net d c; ip net d s; rmmod tipc
and it will get stuck and keep logging the error:
unregister_netdevice: waiting for lo to become free. Usage count = 1
The cause is that a dst is held by the udp sock's sk_rx_dst set on udp rx
path with udp_early_demux == 1, and this dst (eventually holding lo dev)
can't be released as bearer's removal in tipc pernet .exit happens after
lo dev's removal, default_device pernet .exit.
"There are two distinct types of pernet_operations recognized: subsys and
device. At creation all subsys init functions are called before device
init functions, and at destruction all device exit functions are called
before subsys exit function."
So by calling register_pernet_device instead to register tipc_net_ops, the
pernet .exit() will be invoked earlier than loopback dev's removal when a
netns is being destroyed, as fou/gue does.
Note that vxlan and geneve udp tunnels don't have this issue, as the udp
sock is released in their device ndo_stop().
This fix is also necessary for tipc dst_cache, which will hold dsts on tx
path and I will introduce in my next patch.
Reported-by: Li Shuang <shuali@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 605ad7f184 "tcp: refine TSO autosizing",
outbound throughput is dramatically reduced for some connections, as sis900
is doing TX completion within idle states only.
Make TX completion happen after every transmitted packet.
Test:
netperf
before patch:
> netperf -H remote -l -2000000 -- -s 1000000
MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to 95.223.112.76 () port 0 AF_INET : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 327680 327680 253.44 0.06
after patch:
> netperf -H remote -l -10000000 -- -s 1000000
MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to 95.223.112.76 () port 0 AF_INET : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 327680 327680 5.38 14.89
Thx to Dave Miller and Eric Dumazet for helpful hints
Signed-off-by: Sergej Benilov <sergej.benilov@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When transmitting certain PTP frames, e.g. SYNC and DELAY_REQ, the
PTP daemon, e.g. ptp4l, is polling the driver for the frame transmit
hardware timestamp. The polling will most likely timeout if the tx
coalesce is enabled due to the Interrupt-on-Completion (IC) bit is
not set in tx descriptor for those frames.
This patch will ignore the tx coalesce parameter and set the IC bit
when transmitting PTP frames which need to report out the frame
transmit hardware timestamp to user space.
Fixes: f748be531d ("net: stmmac: Rework coalesce timer and fix multi-queue races")
Signed-off-by: Roland Hii <roland.king.guan.hii@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When ADDSUB bit is set, the system time seconds field is calculated as
the complement of the seconds part of the update value.
For example, if 3.000000001 seconds need to be subtracted from the
system time, this field is calculated as
2^32 - 3 = 4294967296 - 3 = 0x100000000 - 3 = 0xFFFFFFFD
Previously, the 0x100000000 is mistakenly written as 100000000.
This is further simplified from
sec = (0x100000000ULL - sec);
to
sec = -sec;
Fixes: ba1ffd74df ("stmmac: fix PTP support for GMAC4")
Signed-off-by: Roland Hii <roland.king.guan.hii@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull iommu fix from Joerg Roedel:
"Revert a commit from the previous pile of fixes which causes new
lockdep splats. It is better to revert it for now and work on a better
and more well tested fix"
* tag 'iommu-fix-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
Revert "iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock"
This reverts commit 7560cc3ca7.
With 5.2.0-rc5 I can easily trigger this with lockdep and iommu=pt:
======================================================
WARNING: possible circular locking dependency detected
5.2.0-rc5 #78 Not tainted
------------------------------------------------------
swapper/0/1 is trying to acquire lock:
00000000ea2b3beb (&(&iommu->lock)->rlock){+.+.}, at: domain_context_mapping_one+0xa5/0x4e0
but task is already holding lock:
00000000a681907b (device_domain_lock){....}, at: domain_context_mapping_one+0x8d/0x4e0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (device_domain_lock){....}:
_raw_spin_lock_irqsave+0x3c/0x50
dmar_insert_one_dev_info+0xbb/0x510
domain_add_dev_info+0x50/0x90
dev_prepare_static_identity_mapping+0x30/0x68
intel_iommu_init+0xddd/0x1422
pci_iommu_init+0x16/0x3f
do_one_initcall+0x5d/0x2b4
kernel_init_freeable+0x218/0x2c1
kernel_init+0xa/0x100
ret_from_fork+0x3a/0x50
-> #0 (&(&iommu->lock)->rlock){+.+.}:
lock_acquire+0x9e/0x170
_raw_spin_lock+0x25/0x30
domain_context_mapping_one+0xa5/0x4e0
pci_for_each_dma_alias+0x30/0x140
dmar_insert_one_dev_info+0x3b2/0x510
domain_add_dev_info+0x50/0x90
dev_prepare_static_identity_mapping+0x30/0x68
intel_iommu_init+0xddd/0x1422
pci_iommu_init+0x16/0x3f
do_one_initcall+0x5d/0x2b4
kernel_init_freeable+0x218/0x2c1
kernel_init+0xa/0x100
ret_from_fork+0x3a/0x50
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(device_domain_lock);
lock(&(&iommu->lock)->rlock);
lock(device_domain_lock);
lock(&(&iommu->lock)->rlock);
*** DEADLOCK ***
2 locks held by swapper/0/1:
#0: 00000000033eb13d (dmar_global_lock){++++}, at: intel_iommu_init+0x1e0/0x1422
#1: 00000000a681907b (device_domain_lock){....}, at: domain_context_mapping_one+0x8d/0x4e0
stack backtrace:
CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc5 #78
Hardware name: LENOVO 20KGS35G01/20KGS35G01, BIOS N23ET50W (1.25 ) 06/25/2018
Call Trace:
dump_stack+0x85/0xc0
print_circular_bug.cold.57+0x15c/0x195
__lock_acquire+0x152a/0x1710
lock_acquire+0x9e/0x170
? domain_context_mapping_one+0xa5/0x4e0
_raw_spin_lock+0x25/0x30
? domain_context_mapping_one+0xa5/0x4e0
domain_context_mapping_one+0xa5/0x4e0
? domain_context_mapping_one+0x4e0/0x4e0
pci_for_each_dma_alias+0x30/0x140
dmar_insert_one_dev_info+0x3b2/0x510
domain_add_dev_info+0x50/0x90
dev_prepare_static_identity_mapping+0x30/0x68
intel_iommu_init+0xddd/0x1422
? printk+0x58/0x6f
? lockdep_hardirqs_on+0xf0/0x180
? do_early_param+0x8e/0x8e
? e820__memblock_setup+0x63/0x63
pci_iommu_init+0x16/0x3f
do_one_initcall+0x5d/0x2b4
? do_early_param+0x8e/0x8e
? rcu_read_lock_sched_held+0x55/0x60
? do_early_param+0x8e/0x8e
kernel_init_freeable+0x218/0x2c1
? rest_init+0x230/0x230
kernel_init+0xa/0x100
ret_from_fork+0x3a/0x50
domain_context_mapping_one() is taking device_domain_lock first then
iommu lock, while dmar_insert_one_dev_info() is doing the reverse.
That should be introduced by commit:
7560cc3ca7 ("iommu/vt-d: Fix lock inversion between iommu->lock and
device_domain_lock", 2019-05-27)
So far I still cannot figure out how the previous deadlock was
triggered (I cannot find iommu lock taken before calling of
iommu_flush_dev_iotlb()), however I'm pretty sure that that change
should be incomplete at least because it does not fix all the places
so we're still taking the locks in different orders, while reverting
that commit is very clean to me so far that we should always take
device_domain_lock first then the iommu lock.
We can continue to try to find the real culprit mentioned in
7560cc3ca7, but for now I think we should revert it to fix current
breakage.
CC: Joerg Roedel <joro@8bytes.org>
CC: Lu Baolu <baolu.lu@linux.intel.com>
CC: dave.jiang@intel.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Pull PCI fix from Bjorn Helgaas:
"If an IOMMU is present, ignore the P2PDMA whitelist we added for v5.2
because we don't yet know how to support P2PDMA in that case (Logan
Gunthorpe)"
* tag 'pci-v5.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/P2PDMA: Ignore root complex whitelist when an IOMMU is present
Pull SCSI fixes from James Bottomley:
"Three driver fixes (and one version number update): a suspend hang in
ufs, a qla hard lock on module removal and a qedi panic during
discovery"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix hardlockup in abort command during driver remove
scsi: ufs: Avoid runtime suspend possibly being blocked forever
scsi: qedi: update driver version to 8.37.0.20
scsi: qedi: Check targetname while finding boot target information
Pull powerpc fixes from Michael Ellerman:
"This is a frustratingly large batch at rc5. Some of these were sent
earlier but were missed by me due to being distracted by other things,
and some took a while to track down due to needing manual bisection on
old hardware. But still we clearly need to improve our testing of KVM,
and of 32-bit, so that we catch these earlier.
Summary: seven fixes, all for bugs introduced this cycle.
- The commit to add KASAN support broke booting on 32-bit SMP
machines, due to a refactoring that moved some setup out of the
secondary CPU path.
- A fix for another 32-bit SMP bug introduced by the fast syscall
entry implementation for 32-bit BOOKE. And a build fix for the same
commit.
- Our change to allow the DAWR to be force enabled on Power9
introduced a bug in KVM, where we clobber r3 leading to a host
crash.
- The same commit also exposed a previously unreachable bug in the
nested KVM handling of DAWR, which could lead to an oops in a
nested host.
- One of the DMA reworks broke the b43legacy WiFi driver on some
people's powermacs, fix it by enabling a 30-bit ZONE_DMA on 32-bit.
- A fix for TLB flushing in KVM introduced a new bug, as it neglected
to also flush the ERAT, this could lead to memory corruption in the
guest.
Thanks to: Aaro Koskinen, Christoph Hellwig, Christophe Leroy, Larry
Finger, Michael Neuling, Suraj Jitindar Singh"
* tag 'powerpc-5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries
powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac
KVM: PPC: Book3S HV: Only write DAWR[X] when handling h_set_dawr in real mode
KVM: PPC: Book3S HV: Fix r3 corruption in h_set_dabr()
powerpc/32: fix build failure on book3e with KVM
powerpc/booke: fix fast syscall entry on SMP
powerpc/32s: fix initial setup of segment registers on secondary CPU
When trying to align the minimum encryption key size requirement for
Bluetooth connections, it turns out doing this in a central location in
the HCI connection handling code is not possible.
Original Bluetooth version up to 2.0 used a security model where the
L2CAP service would enforce authentication and encryption. Starting
with Bluetooth 2.1 and Secure Simple Pairing that model has changed into
that the connection initiator is responsible for providing an encrypted
ACL link before any L2CAP communication can happen.
Now connecting Bluetooth 2.1 or later devices with Bluetooth 2.0 and
before devices are causing a regression. The encryption key size check
needs to be moved out of the HCI connection handling into the L2CAP
channel setup.
To achieve this, the current check inside hci_conn_security() has been
moved into l2cap_check_enc_key_size() helper function and then called
from four decisions point inside L2CAP to cover all combinations of
Secure Simple Pairing enabled devices and device using legacy pairing
and legacy service security model.
Fixes: d5bb334a8e ("Bluetooth: Align minimum encryption key size for LE and BR/EDR connections")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203643
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The arc4 crypto is mandatory at ppp_mppe probe time, so let's put a
softdep line, so that the corresponding module gets prepared
gracefully. Without this, a simple inclusion to initrd via dracut
failed due to the missing dependency, for example.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Certain cards in conjunction with certain switches need a little more
time for link setup that results in ethtool link test failure after
offline test. Patch adds a loop that waits for a link setup finish.
Changes in v2:
- added fixes header
Fixes: 4276e47e2d ("be2net: Add link test to list of ethtool self tests.")
Signed-off-by: Petr Oros <poros@redhat.com>
Reviewed-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull another handful of EFI fixes for v5.2 from Arnd:
- Fix a potential crash after kexec on arm64 with GICv3
- Fix a build warning on x86
- Stop policing the BGRT feature flags
- Use a non-blocking version of SetVariable() in the boot control driver
Replace the variable set function from "efivar_entry_set" to
"efivar_entry_set_safe" in efibc panic notifier.
In safe function parameter "block" will set to false
and will call "efivar_entry_set_nonblocking"to set efi variables.
efivar_entry_set_nonblocking is guaranteed to
not block and is suitable for calling from crash/panic handlers.
In UEFI android platform, when warm reset happens,
with this change, efibc will not block the reboot process.
Otherwise, set variable will call queue work and send to other offlined
cpus then cause another panic, finally will cause reboot failure.
Signed-off-by: Tian Baofeng <baofeng.tian@intel.com>
Signed-off-by: Luo XinanX <xinanx.luo@intel.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Pull networking fixes from David Miller:
1) Fix leak of unqueued fragments in ipv6 nf_defrag, from Guillaume
Nault.
2) Don't access the DDM interface unless the transceiver implements it
in bnx2x, from Mauro S. M. Rodrigues.
3) Don't double fetch 'len' from userspace in sock_getsockopt(), from
JingYi Hou.
4) Sign extension overflow in lio_core, from Colin Ian King.
5) Various netem bug fixes wrt. corrupted packets from Jakub Kicinski.
6) Fix epollout hang in hvsock, from Sunil Muthuswamy.
7) Fix regression in default fib6_type, from David Ahern.
8) Handle memory limits in tcp_fragment more appropriately, from Eric
Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (24 commits)
tcp: refine memory limit test in tcp_fragment()
inet: clear num_timeout reqsk_alloc()
net: mvpp2: debugfs: Add pmap to fs dump
ipv6: Default fib6_type to RTN_UNICAST when not set
net: hns3: Fix inconsistent indenting
net/af_iucv: always register net_device notifier
net/af_iucv: build proper skbs for HiperTransport
net/af_iucv: remove GFP_DMA restriction for HiperTransport
net: dsa: mv88e6xxx: fix shift of FID bits in mv88e6185_g1_vtu_loadpurge()
hvsock: fix epollout hang from race condition
net/udp_gso: Allow TX timestamp with UDP GSO
net: netem: fix use after free and double free with packet corruption
net: netem: fix backlog accounting for corrupted GSO frames
net: lio_core: fix potential sign-extension overflow on large shift
tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb
ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL
ip_tunnel: allow not to count pkts on tstats by setting skb's dev to NULL
tun: wake up waitqueues after IFF_UP is set
net: remove duplicate fetch in sock_getsockopt
tipc: fix issues with early FAILOVER_MSG from peer
...
tcp_fragment() might be called for skbs in the write queue.
Memory limits might have been exceeded because tcp_sendmsg() only
checks limits at full skb (64KB) boundaries.
Therefore, we need to make sure tcp_fragment() wont punish applications
that might have setup very low SO_SNDBUF values.
Fixes: f070ef2ac6 ("tcp: tcp_fragment() should apply sane memory limits")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Christoph Paasch <cpaasch@apple.com>
Tested-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull rdma fixes from Doug Ledford:
"This is probably our last -rc pull request. We don't have anything
else outstanding at the moment anyway, and with the summer months on
us and people taking trips, I expect the next weeks leading up to the
merge window to be pretty calm and sedate.
This has two simple, no brainer fixes for the EFA driver.
Then it has ten not quite so simple fixes for the hfi1 driver. The
problem with them is that they aren't simply one liner typo fixes.
They're still fixes, but they're more complex issues like livelock
under heavy load where the answer was to change work queue usage and
spinlock usage to resolve the problem, or issues with orphaned
requests during certain types of failures like link down which
required some more complex work to fix too. They all look like
legitimate fixes to me, they just aren't small like I wish they were.
Summary:
- 2 minor EFA fixes
- 10 hfi1 fixes related to scaling issues"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/efa: Handle mmap insertions overflow
RDMA/efa: Fix success return value in case of error
IB/hfi1: Handle port down properly in pio
IB/hfi1: Handle wakeup of orphaned QPs for pio
IB/hfi1: Wakeup QPs orphaned on wait list after flush
IB/hfi1: Use aborts to trigger RC throttling
IB/hfi1: Create inline to get extended headers
IB/hfi1: Silence txreq allocation warnings
IB/hfi1: Avoid hardlockup with flushlist_lock
IB/hfi1: Correct tid qp rcd to match verbs context
IB/hfi1: Close PSM sdma_progress sleep window
IB/hfi1: Validate fault injection opcode user input
Pull more NFS client fixes from Anna Schumaker:
"These are mostly refcounting issues that people have found recently.
The revert fixes a suspend recovery performance issue.
- SUNRPC: Fix a credential refcount leak
- Revert "SUNRPC: Declare RPC timers as TIMER_DEFERRABLE"
- SUNRPC: Fix xps refcount imbalance on the error path
- NFS4: Only set creation opendata if O_CREAT"
* tag 'nfs-for-5.2-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
SUNRPC: Fix a credential refcount leak
Revert "SUNRPC: Declare RPC timers as TIMER_DEFERRABLE"
net :sunrpc :clnt :Fix xps refcount imbalance on the error path
NFS4: Only set creation opendata if O_CREAT
GCC 5.5.0 sometimes cleverly hoists reads of the pvclock and/or hvclock
pages before the vclock mode checks. This creates a path through
vclock_gettime() in which no vclock is enabled at all (due to disabled
TSC on old CPUs, for example) but the pvclock or hvclock page
nevertheless read. This will segfault on bare metal.
This fixes commit 459e3a2153 ("gcc-9: properly declare the
{pv,hv}clock_page storage") in the sense that, before that commit, GCC
didn't seem to generate the offending code. There was nothing wrong
with that commit per se, and -stable maintainers should backport this to
all supported kernels regardless of whether the offending commit was
present, since the same crash could just as easily be triggered by the
phase of the moon.
On GCC 9.1.1, this doesn't seem to affect the generated code at all, so
I'm not too concerned about performance regressions from this fix.
Cc: stable@vger.kernel.org
Cc: x86@kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Reported-by: Duncan Roe <duncan_roe@optusnet.com.au>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stephen reports:
I hit the following General Protection Fault when testing io_uring via
the io_uring engine in fio. This was on a VM running 5.2-rc5 and the
latest version of fio. The issue occurs for both null_blk and fake NVMe
drives. I have not tested bare metal or real NVMe SSDs. The fio script
used is given below.
[io_uring]
time_based=1
runtime=60
filename=/dev/nvme2n1 (note /dev/nullb0 also fails)
ioengine=io_uring
bs=4k
rw=readwrite
direct=1
fixedbufs=1
sqthread_poll=1
sqthread_poll_cpu=0
general protection fault: 0000 [#1] SMP PTI
CPU: 0 PID: 872 Comm: io_uring-sq Not tainted 5.2.0-rc5-cpacket-io-uring #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
RIP: 0010:fput_many+0x7/0x90
Code: 01 48 85 ff 74 17 55 48 89 e5 53 48 8b 1f e8 a0 f9 ff ff 48 85 db 48 89 df 75 f0 5b 5d f3 c3 0f 1f 40 00 0f 1f 44 00 00 89 f6 <f0> 48 29 77 38 74 01 c3 55 48 89 e5 53 48 89 fb 65 48 \
RSP: 0018:ffffadeb817ebc50 EFLAGS: 00010246
RAX: 0000000000000004 RBX: ffff8f46ad477480 RCX: 0000000000001805
RDX: 0000000000000000 RSI: 0000000000000001 RDI: f18b51b9a39552b5
RBP: ffffadeb817ebc58 R08: ffff8f46b7a318c0 R09: 000000000000015d
R10: ffffadeb817ebce8 R11: 0000000000000020 R12: ffff8f46ad4cd000
R13: 00000000fffffff7 R14: ffffadeb817ebe30 R15: 0000000000000004
FS: 0000000000000000(0000) GS:ffff8f46b7a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055828f0bbbf0 CR3: 0000000232176004 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
? fput+0x13/0x20
io_free_req+0x20/0x40
io_put_req+0x1b/0x20
io_submit_sqe+0x40a/0x680
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
io_submit_sqes+0xb9/0x160
? io_submit_sqes+0xb9/0x160
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __schedule+0x3f2/0x6a0
? __switch_to_asm+0x34/0x70
io_sq_thread+0x1af/0x470
? __switch_to_asm+0x34/0x70
? wait_woken+0x80/0x80
? __switch_to+0x85/0x410
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __schedule+0x3f2/0x6a0
kthread+0x105/0x140
? io_submit_sqes+0x160/0x160
? kthread+0x105/0x140
? io_submit_sqes+0x160/0x160
? kthread_destroy_worker+0x50/0x50
ret_from_fork+0x35/0x40
which occurs because using a kernel side submission thread isn't valid
without using fixed files (registered through io_uring_register()). This
causes io_uring to put the request after logging an error, but before
the file field is set in the request. If it happens to be non-zero, we
attempt to fput() garbage.
Fix this by ensuring that req->file is initialized when the request is
allocated.
Cc: stable@vger.kernel.org # 5.1+
Reported-by: Stephen Bates <sbates@raithlin.com>
Tested-by: Stephen Bates <sbates@raithlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
All callers of __rpc_clone_client() pass in a value for args->cred,
meaning that the credential gets assigned and referenced in
the call to rpc_new_client().
Reported-by: Ido Schimmel <idosch@idosch.org>
Fixes: 79caa5fad4 ("SUNRPC: Cache cred of process creating the rpc_client")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Jon Hunter reports:
"I have been noticing intermittent failures with a system suspend test on
some of our machines that have a NFS mounted root file-system. Bisecting
this issue points to your commit 431235818b ("SUNRPC: Declare RPC
timers as TIMER_DEFERRABLE") and reverting this on top of v5.2-rc3 does
appear to resolve the problem.
The cause of the suspend failure appears to be a long delay observed
sometimes when resuming from suspend, and this is causing our test to
timeout."
This reverts commit 431235818b.
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
rpc_clnt_add_xprt take a reference to struct rpc_xprt_switch, but forget
to release it before return, may lead to a memory leak.
Signed-off-by: Lin Yi <teroincn@163.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
We can end up in nfs4_opendata_alloc during task exit, in which case
current->fs has already been cleaned up. This leads to a crash in
current_umask().
Fix this by only setting creation opendata if we are actually doing an open
with O_CREAT. We can drop the check for NULL nfs4_open_createattrs, since
O_CREAT will never be set for the recovery path.
Suggested-by: Trond Myklebust <trondmy@hammerspace.com>
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Pull ARM fix from Russell King:
"Just one ARM fix this time around for Jason Donenfeld, fixing a
problem with the VDSO generation on big endian"
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8867/1: vdso: pass --be8 to linker if necessary
Pull drm fixes from Dave Airlie:
"Just catching up on the week since back from holidays, everything
seems quite sane.
core:
- copy_to_user fix for really legacy codepaths.
vmwgfx:
- two dma fixes
- one virt hw interaction fix
i915:
- modesetting fix
- gvt fix
panfrost:
- BO unmapping fix
imx:
- image converter fixes"
* tag 'drm-fixes-2019-06-21' of git://anongit.freedesktop.org/drm/drm:
drm/i915: Don't clobber M/N values during fastset check
drm: return -EFAULT if copy_to_user() fails
drm/panfrost: Make sure a BO is only unmapped when appropriate
drm/i915/gvt: ignore unexpected pvinfo write
gpu: ipu-v3: image-convert: Fix image downsize coefficients
gpu: ipu-v3: image-convert: Fix input bytesperline for packed formats
gpu: ipu-v3: image-convert: Fix input bytesperline width/height align
drm/vmwgfx: fix a warning due to missing dma_parms
drm/vmwgfx: Honor the sg list segment size limitation
drm/vmwgfx: Use the backdoor port if the HB port is not available
Pull staging/IIO/counter fixes from Greg KH:
"Here are some small driver bugfixes for some staging/iio/counter
drivers.
Staging and IIO have been lumped together for a while, as those
subsystems cross the areas a log, and counter is used by IIO, so
that's why they are all in one pull request here.
These are small fixes for reported issues in some iio drivers, the
erofs filesystem, and a build issue for counter code.
All have been in linux-next with no reported issues"
* tag 'staging-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: erofs: add requirements field in superblock
counter/ftm-quaddec: Add missing dependencies in Kconfig
staging: iio: adt7316: Fix build errors when GPIOLIB is not set
iio: temperature: mlx90632 Relax the compatibility check
iio: imu: st_lsm6dsx: fix PM support for st_lsm6dsx i2c controller
staging:iio:ad7150: fix threshold mode config bit
Pull char/misc driver fixes from Greg KH:
"Here are a number of small driver fixes for 5.2-rc6
Nothing major, just fixes for reported issues:
- soundwire fixes
- thunderbolt fixes
- MAINTAINERS update for fpga maintainer change
- binder bugfix
- habanalabs 64bit pointer fix
- documentation updates
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
habanalabs: use u64_to_user_ptr() for reading user pointers
doc: fix documentation about UIO_MEM_LOGICAL using
MAINTAINERS / Documentation: Thorsten Scherer is the successor of Gavin Schenk
docs: fb: Add TER16x32 to the available font names
MAINTAINERS: fpga: hand off maintainership to Moritz
thunderbolt: Implement CIO reset correctly for Titan Ridge
binder: fix possible UAF when freeing buffer
thunderbolt: Make sure device runtime resume completes before taking domain lock
soundwire: intel: set dai min and max channels correctly
soundwire: stream: fix bad unlock balance
soundwire: stream: fix out of boundary access on port properties
Pull USB fixes from Greg KH:
"Here are four small USB fixes for 5.2-rc6.
They include two xhci bugfixes, a chipidea fix, and a small dwc2 fix.
Nothing major, just nice things to get resolved for reported issues.
All have been in linux-next with no reported issues"
* tag 'usb-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: detect USB 3.2 capable host controllers correctly
usb: xhci: Don't try to recover an endpoint if port is in error state.
usb: dwc2: Use generic PHY width in params setup
usb: chipidea: udc: workaround for endpoint conflict issue
Pull still more SPDX updates from Greg KH:
"Another round of SPDX updates for 5.2-rc6
Here is what I am guessing is going to be the last "big" SPDX update
for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates
that were "easy" to determine by pattern matching. The ones after this
are going to be a bit more difficult and the people on the spdx list
will be discussing them on a case-by-case basis now.
Another 5000+ files are fixed up, so our overall totals are:
Files checked: 64545
Files with SPDX: 45529
Compared to the 5.1 kernel which was:
Files checked: 63848
Files with SPDX: 22576
This is a huge improvement.
Also, we deleted another 20000 lines of boilerplate license crud,
always nice to see in a diffstat"
* tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits)
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485
...
Pull cifs fixes from Steve French:
"Four small SMB3 fixes, all for stable"
* tag '5.2-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix GlobalMid_Lock bug in cifs_reconnect
SMB3: retry on STATUS_INSUFFICIENT_RESOURCES instead of failing write
cifs: add spinlock for the openFileList to cifsInodeInfo
cifs: fix panic in smb2_reconnect
The commit fe00e50b2d ("ARM: 8858/1: vdso: use $(LD) instead of $(CC)
to link VDSO") removed the passing of CFLAGS, since ld doesn't take
those directly. However, prior, big-endian ARM was relying on gcc to
translate its -mbe8 option into ld's --be8 option. Lacking this, ld
generated be32 code, making the VDSO generate SIGILL when called by
userspace.
This commit passes --be8 if CONFIG_CPU_ENDIAN_BE8 is enabled.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Pull overlayfs fixes from Miklos Szeredi:
"Fix two regressions in this cycle, and a couple of older bugs"
* tag 'ovl-fixes-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: make i_ino consistent with st_ino in more cases
ovl: fix typo in MODULE_PARM_DESC
ovl: fix bogus -Wmaybe-unitialized warning
ovl: don't fail with disconnected lower NFS
ovl: fix wrong flags check in FS_IOC_FS[SG]ETXATTR ioctls
Pull fuse fix from Miklos Szeredi:
"Just a single revert, fixing a regression in -rc1"
* tag 'fuse-fixes-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
Revert "fuse: require /dev/fuse reads to have enough buffer capacity"
Pull kvm fixes from Paolo Bonzini:
"Fixes for ARM and x86, plus selftest patches and nicer structs for
nested state save/restore"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: reorganize initial steps of vmx_set_nested_state
KVM: arm/arm64: Fix emulated ptimer irq injection
tests: kvm: Check for a kernel warning
kvm: tests: Sort tests in the Makefile alphabetically
KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT
KVM: x86: Modify struct kvm_nested_state to have explicit fields for data
KVM: fix typo in documentation
KVM: nVMX: use correct clean fields when copying from eVMCS
KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy
KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST
KVM: arm64: Implement vq_present() as a macro
Once we unlock adapter->hw_lock in pvscsi_queue_lck() nothing prevents just
queued scsi_cmnd from completing and freeing the request. Thus cmd->cmnd[0]
dereference can dereference already freed request leading to kernel crashes
or other issues (which one of our customers observed). Store cmd->cmnd[0]
in a local variable before unlocking adapter->hw_lock to fix the issue.
CC: <stable@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull arm64 fixes from Will Deacon:
"This is mainly a couple of email address updates to MAINTAINERS, but
we've also fixed a UAPI build issue with musl libc and an accidental
double-initialisation of our pgd_cache due to a naming conflict with a
weak symbol.
There are a couple of outstanding issues that have been reported, but
it doesn't look like they're new and we're still a long way off from
fully debugging them.
Summary:
- Fix use of #include in UAPI headers for compatability with musl libc
- Update email addresses in MAINTAINERS
- Fix initialisation of pgd_cache due to name collision with weak symbol"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/mm: don't initialize pgd_cache twice
MAINTAINERS: Update my email address
arm64/sve: <uapi/asm/ptrace.h> should not depend on <uapi/linux/prctl.h>
arm64: ssbd: explicitly depend on <linux/prctl.h>
MAINTAINERS: Update my email address to use @kernel.org
Pull s390 fixes from Heiko Carstens:
- Disable address-of-packed-member warning in s390 specific boot code
to get rid of a gcc9 warning which otherwise is already disabled for
the whole kernel.
- Fix yet another compiler error seen with CONFIG_OPTIMIZE_INLINING
enabled.
- Fix memory leak in vfio-ccw code on module exit.
* tag 's390-5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
vfio-ccw: Destroy kmem cache region on module exit
s390/ctl_reg: mark __ctl_set_bit and __ctl_clear_bit as __always_inline
s390/boot: disable address-of-packed-member warning
Pull two misc vfs fixes from Jan Kara:
"One small quota fix fixing spurious EDQUOT errors and one fanotify fix
fixing a bug in the new fanotify FID reporting code"
* tag 'for_v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: update connector fsid cache on add mark
quota: fix a problem about transfer quota
The setting of i_blocks, which is calculated from i_size, has got
accidentally misordered relative to the setting of i_size when initially
setting up an inode. Further, i_blocks isn't updated by afs_apply_status()
when the size is updated.
To fix this, break the i_size/i_blocks setting out into a helper function
and call it from both places.
Fixes: a58823ac45 ("afs: Fix application of status and callback to be under same lock")
Signed-off-by: David Howells <dhowells@redhat.com>
Pull MMC fixes from Ulf Hansson:
"Here's quite a few MMC fixes intended for v5.2-rc6. This time it also
contains fixes for a WiFi driver, which device is attached to the SDIO
interface. Patches for the WiFi driver have been acked by the
corresponding maintainers.
Summary:
MMC core:
- Make switch to eMMC HS400 more robust for some controllers
- Add two SDIO func API to manage re-tuning constraints
- Prevent processing SDIO IRQs when the card is suspended
MMC host:
- sdhi: Disallow broken HS400 for M3-W ES1.2, RZ/G2M and V3H
- mtk-sd: Fixup support for SDIO IRQs
- sdhci-pci-o2micro: Fixup support for tuning
Wireless BRCMFMAC (SDIO):
- Deal with expected transmission errors related to the idle states
(handled by the Always-On-Subsystem or AOS) on the SDIO-based WiFi
on rk3288-veyron-minnie, rk3288-veyron-speedy and
rk3288-veyron-mickey"
* tag 'mmc-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: core: Prevent processing SDIO IRQs when the card is suspended
mmc: sdhci: sdhci-pci-o2micro: Correctly set bus width when tuning
brcmfmac: sdio: Don't tune while the card is off
mmc: core: Add sdio_retune_hold_now() and sdio_retune_release()
brcmfmac: sdio: Disable auto-tuning around commands expected to fail
mmc: core: API to temporarily disable retuning for SDIO CRC errors
Revert "brcmfmac: disable command decode in sdio_aos"
mmc: mediatek: fix SDIO IRQ detection issue
mmc: mediatek: fix SDIO IRQ interrupt handle flow
mmc: core: complete HS400 before checking status
mmc: sdhi: disallow HS400 for M3-W ES1.2, RZ/G2M, and V3H
Pull block fixes from Jens Axboe:
"Three fixes that should go into this series.
One is a set of two patches from Christoph, fixing a page leak on same
page merges. Boiled down version of a bigger fix, but this one is more
appropriate for this late in the cycle (and easier to backport to
stable).
The last patch is for a divide error in MD, from Mariusz (via Song)"
* tag 'for-linus-20190620' of git://git.kernel.dk/linux-block:
md: fix for divide error in status_resync
block: fix page leak when merging to same page
block: return from __bio_try_merge_page if merging occured in the same page
KVM/arm fixes for 5.2, take #2
- SVE cleanup killing a warning with ancient GCC versions
- Don't report non-existent system registers to userspace
- Fix memory leak when freeing the vgic ITS
- Properly lower the interrupt on the emulated physical timer
Commit 332d079735 ("KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS
state before setting new state", 2019-05-02) broke evmcs_test because the
eVMCS setup must be performed even if there is no VMXON region defined,
as long as the eVMCS bit is set in the assist page.
While the simplest possible fix would be to add a check on
kvm_state->flags & KVM_STATE_NESTED_EVMCS in the initial "if" that
covers kvm_state->hdr.vmx.vmxon_pa == -1ull, that is quite ugly.
Instead, this patch moves checks earlier in the function and
conditionalizes them on kvm_state->hdr.vmx.vmxon_pa, so that
vmx_set_nested_state always goes through vmx_leave_nested
and nested_enable_evmcs.
Fixes: 332d079735 ("KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state")
Cc: Aaron Lewis <aaronlewis@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fix the cb_break_lock spinlock in afs_volume struct by initialising it when
the volume record is allocated.
Also rename the lock to cb_v_break_lock to distinguish it from the lock of
the same name in the afs_server struct.
Without this, the following trace may be observed when a volume-break
callback is received:
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 2 PID: 50 Comm: kworker/2:1 Not tainted 5.2.0-rc1-fscache+ #3045
Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014
Workqueue: afs SRXAFSCB_CallBack
Call Trace:
dump_stack+0x67/0x8e
register_lock_class+0x23b/0x421
? check_usage_forwards+0x13c/0x13c
__lock_acquire+0x89/0xf73
lock_acquire+0x13b/0x166
? afs_break_callbacks+0x1b2/0x3dd
_raw_write_lock+0x2c/0x36
? afs_break_callbacks+0x1b2/0x3dd
afs_break_callbacks+0x1b2/0x3dd
? trace_event_raw_event_afs_server+0x61/0xac
SRXAFSCB_CallBack+0x11f/0x16c
process_one_work+0x2c5/0x4ee
? worker_thread+0x234/0x2ac
worker_thread+0x1d8/0x2ac
? cancel_delayed_work_sync+0xf/0xf
kthread+0x11f/0x127
? kthread_park+0x76/0x76
ret_from_fork+0x24/0x30
Fixes: 68251f0a68 ("afs: Fix whole-volume callback handling")
Signed-off-by: David Howells <dhowells@redhat.com>
Because I made the afs_call struct share pointers to an afs_server object
and an afs_vlserver object to save space, afs_put_call() calls
afs_put_server() on afs_vlserver object (which is only meant for the
afs_server object) because it sees that call->server isn't NULL.
This means that the afs_vlserver object gets unpredictably and randomly
modified, depending on what config options are set (such as lockdep).
Fix this by getting rid of the union and having two non-overlapping
pointers in the afs_call struct.
Fixes: ffba718e93 ("afs: Get rid of afs_call::reply[]")
Signed-off-by: David Howells <dhowells@redhat.com>
Occasionally, warnings like this:
vnode modified 2af7 on {10000b:1} [exp 2af2] YFS.FetchStatus(vnode)
are emitted into the kernel log. This indicates that when we were applying
the updated vnode (file) status retrieved from the server to an inode we
saw that the data version number wasn't what we were expecting (in this
case it's 0x2af7 rather than 0x2af2).
We've usually received a callback from the server prior to this point - or
the callback promise has lapsed - so the warning is merely informative and
the state is to be expected.
Fix this by only emitting the warning if the we still think that we have a
valid callback promise and haven't received a callback.
Also change the format slightly so so that the new data version doesn't
look like part of the text, the like is prefixed with "kAFS: " and the
message is ranked as a warning.
Fixes: 31143d5d51 ("AFS: implement basic file write support")
Reported-by: Ian Wienand <iwienand@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
While the DOC at the beginning of lib/bitmap.c explicitly states that
"The number of valid bits in a given bitmap does _not_ need to be an
exact multiple of BITS_PER_LONG.", some of the bitmap operations do
indeed access BITS_PER_LONG portions of the provided bitmap no matter
the size of the provided bitmap.
For example, if find_first_bit() is provided with an 8 bit bitmap the
operation will access BITS_PER_LONG bits from the provided bitmap. While
the operation ensures that these extra bits do not affect the result,
the memory is still accessed.
The capacity bitmasks (CBMs) are typically stored in u32 since they
can never exceed 32 bits. A few instances exist where a bitmap_*
operation is performed on a CBM by simply pointing the bitmap operation
to the stored u32 value.
The consequence of this pattern is that some bitmap_* operations will
access out-of-bounds memory when interacting with the provided CBM.
This same issue has previously been addressed with commit 49e00eee00
("x86/intel_rdt: Fix out-of-bounds memory access in CBM tests")
but at that time not all instances of the issue were fixed.
Fix this by using an unsigned long to store the capacity bitmask data
that is passed to bitmap functions.
Fixes: e651901187 ("x86/intel_rdt: Introduce "bit_usage" to display cache allocations details")
Fixes: f4e80d67a5 ("x86/intel_rdt: Resctrl files reflect pseudo-locked information")
Fixes: 95f0b77efa ("x86/intel_rdt: Initialize new resource group with sane defaults")
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/58c9b6081fd9bf599af0dfc01a6fdd335768efef.1560975645.git.reinette.chatre@intel.com
While using mmap, the incorrect values of length and vm_pgoff are
ignored and this driver goes ahead with mapping fbdev.buffer
to user vma.
Convert vm_insert_pages() to use vm_map_pages_zero(). We could later
"fix" these drivers to behave according to the normal vm_pgoff
offsetting simply by removing the _zero suffix on the function name
and if that causes regressions, it gives us an easy way to revert.
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
While using mmap, the incorrect values of length and vm_pgoff are
ignored and this driver goes ahead with mapping cfag12864b_buffer
to user vma.
Convert vm_insert_pages() to use vm_map_pages_zero(). We could later
"fix" these drivers to behave according to the normal vm_pgoff
offsetting simply by removing the _zero suffix on the function name and
if that causes regressions, it gives us an easy way to revert.
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
When a guest vcpu moves from one physical thread to another it is
necessary for the host to perform a tlb flush on the previous core if
another vcpu from the same guest is going to run there. This is because the
guest may use the local form of the tlb invalidation instruction meaning
stale tlb entries would persist where it previously ran. This is handled
on guest entry in kvmppc_check_need_tlb_flush() which calls
flush_guest_tlb() to perform the tlb flush.
Previously the generic radix__local_flush_tlb_lpid_guest() function was
used, however the functionality was reimplemented in flush_guest_tlb()
to avoid the trace_tlbie() call as the flushing may be done in real
mode. The reimplementation in flush_guest_tlb() was missing an erat
invalidation after flushing the tlb.
This lead to observable memory corruption in the guest due to the
caching of stale translations. Fix this by adding the erat invalidation.
Fixes: 70ea13f6e6 ("KVM: PPC: Book3S HV: Flush TLB on secondary radix threads")
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Oded writes:
This tag contains the following fix:
- Casting warning of a 64-bit integer in 32-bit architecture. Use the
macro that was defined for this purpose.
* tag 'misc-habanalabs-fixes-2019-06-20' of git://people.freedesktop.org/~gabbayo/linux:
habanalabs: use u64_to_user_ptr() for reading user pointers
Felipe writes:
usb: fixes for v5.2-rc5
A single fix to take into account the PHY width during initialization of
dwc2 driver. This change allows deviceTree to pass PHY width if
necessary.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
* tag 'fixes-for-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
usb: dwc2: Use generic PHY width in params setup
We cannot cast a 64-bit integer to a pointer on 32-bit architectures
without a warning:
drivers/misc/habanalabs/habanalabs_ioctl.c: In function 'debug_coresight':
drivers/misc/habanalabs/habanalabs_ioctl.c:143:23: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
input = memdup_user((const void __user *) args->input_ptr,
Use the macro that was defined for this purpose.
Fixes: 315bc055ed ("habanalabs: add new IOCTL for debug, tracing and profiling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Jeff's picking up more responsibilities elsewhere, and Chuck's agreed to
take over.
For now, as before, nothing's changing day-to-day, but I want to have a
co-maintainer if only for bus factor.
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Presently, there is no path to DMA map P2PDMA memory, so if a TLP targeting
this memory hits the root complex and an IOMMU is present, the IOMMU will
reject the transaction, even if the RC would support P2PDMA.
So until the kernel knows to map these DMA addresses in the IOMMU, we
should not enable the whitelist when an IOMMU is present.
Link: https://lore.kernel.org/linux-pci/20190522201252.2997-1-logang@deltatee.com/
Fixes: 0f97da8310 ("PCI/P2PDMA: Allow P2P DMA between any devices under AMD ZEN Root Complex")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Christoph Hellwig <hch@lst.de>
A user reported that routes are getting installed with type 0 (RTN_UNSPEC)
where before the routes were RTN_UNICAST. One example is from accel-ppp
which apparently still uses the ioctl interface and does not set
rtmsg_type. Another is the netlink interface where ipv6 does not require
rtm_type to be set (v4 does). Prior to the commit in the Fixes tag the
ipv6 stack converted type 0 to RTN_UNICAST, so restore that behavior.
Fixes: e8478e80e5 ("net/ipv6: Save route type in rt6_info")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann says:
====================
net/af_iucv: fixes 2019-06-18
I spent a few cycles on transmit problems for af_iucv over regular
netdevices - please apply the following fixes to -net.
The first patch allows for skb allocations outside of GFP_DMA, while the
second patch respects that drivers might use skb_cow_head() and/or want
additional dev->needed_headroom.
Patch 3 is for a separate issue, where we didn't setup some of the
netdevice-specific infrastructure when running as a z/VM guest.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Even when running as VM guest (ie pr_iucv != NULL), af_iucv can still
open HiperTransport-based connections. For robust operation these
connections require the af_iucv_netdev_notifier, so register it
unconditionally.
Also handle any error that register_netdevice_notifier() returns.
Fixes: 9fbd87d413 ("af_iucv: handle netdev events")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The HiperSockets-based transport path in af_iucv is still too closely
entangled with qeth.
With commit a647a02512 ("s390/qeth: speed-up L3 IQD xmit"), the
relevant xmit code in qeth has begun to use skb_cow_head(). So to avoid
unnecessary skb head expansions, af_iucv must learn to
1) respect dev->needed_headroom when allocating skbs, and
2) drop the header reference before cloning the skb.
While at it, also stop hard-coding the LL-header creation stage and just
use the appropriate helper.
Fixes: a647a02512 ("s390/qeth: speed-up L3 IQD xmit")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
af_iucv sockets over z/VM IUCV require that their skbs are allocated
in DMA memory. This restriction doesn't apply to connections over
HiperSockets. So only set this limit for z/VM IUCV sockets, thereby
increasing the likelihood that the large (and linear!) allocations for
HiperTransport messages succeed.
Fixes: 3881ac441f ("af_iucv: add HiperSockets transport")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull power management fix from Rafael Wysocki:
"Prevent PCI bridges in general (and PCIe ports in particular) from
being put into low-power states during system-wide suspend transitions
if there are any devices in D0 below them and refine the handling of
PCI devices in D0 during suspend-to-idle cycles"
* tag 'pm-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI: PM: Skip devices in D0 for suspend-to-idle
Pull apparmor bug fixes from John Johansen:
- fix PROFILE_MEDIATES for untrusted input
- enforce nullbyte at end of tag string
- reset pos on failure to unpack for various functions
* tag 'apparmor-pr-2019-06-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: reset pos on failure to unpack for various functions
apparmor: enforce nullbyte at end of tag string
apparmor: fix PROFILE_MEDIATES for untrusted input
Pull input updates from Dmitry Torokhov:
"Just a few small fixups and switching a couple of Thinkpads to SMBus
for touchpads as PS/2 emulation is not working well"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics - enable SMBus on ThinkPad E480 and E580
Input: imx_keypad - make sure keyboard can always wake up system
Input: iqs5xx - get axis info before calling input_mt_init_slots()
Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
Input: silead - add MSSL0017 to acpi_device_id
Input: elantech - enable middle button support on 2 ThinkPads
Input: elan_i2c - increment wakeup count if wake source
Mika writes:
thunderbolt: Fixes for v5.2-rc6
This includes two fixes for issues found during the current release
cycle:
- Fix runtime PM regression when device is authorized after the
controller is runtime suspended.
- Correct CIO reset flow for Titan Ridge.
* tag 'thunderbolt-fixes-for-v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt:
thunderbolt: Implement CIO reset correctly for Titan Ridge
thunderbolt: Make sure device runtime resume completes before taking domain lock
This pull request contains MAINTAINERS file updates for Broadcom SoCs
entries for 5.3, please pull the following:
- Florian adds the Broadcom internal mailing-list which has a patchwork
instance behind for the BCM2835 and BCM53573 SoCs entries
* tag 'arm-soc/for-5.3/maintainers' of https://github.com/Broadcom/stblinux:
MAINTAINERS: BCM53573: Add internal Broadcom mailing list
MAINTAINERS: BCM2835: Add internal Broadcom mailing list
Signed-off-by: Olof Johansson <olof@lixom.net>
I'm moving on to a new position and stepping down as FPGA subsystem
maintainer. Moritz has graciously agreed to take over the
maintainership.
Signed-off-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this file is free software you can redistribute it and or modify it
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for more details you should have received a copy of the gnu general
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Based on 1 normalized pattern(s):
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Based on 1 normalized pattern(s):
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warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
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Based on 2 normalized pattern(s):
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
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license as published by the free software foundation this program is
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for more details
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for more details
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Based on 1 normalized pattern(s):
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
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0 html for more details
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this package is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 3 file(s).
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Link: https://lkml.kernel.org/r/20190604081205.116017757@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it would be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
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Reviewed-by: Enrico Weigelt <info@metux.net>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
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fitness for a particular purpose see the gnu general public license
for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 2 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081202.997941624@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
based on gpl code from [dibcom] which has [copyright] [c] [2004]
[amaury] [demol] [for] [dibcom] this program is free software you
can redistribute it and or modify it under the terms of the gnu
general public license as published by the free software foundation
version 2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081202.886876323@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of version 2 of the gnu general public license as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses the full gnu general public license is included in this
distribution in the file called copying
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081202.258730266@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 only
as published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details to obtain the license point your browser to http
www gnu org copyleft gpl html
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 12 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081202.028166291@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation http www opensource org
licenses gpl license html http www gnu org copyleft gpl html
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 3 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.897982733@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation the gpl this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
version 2 gplv2 for more details you should have received a copy of
the gnu general public license version 2 gplv2 along with this
source code
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 16 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.771169395@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
this file is licensed under gplv2 this file is part of the [aic94xx]
driver the [aic94xx] driver is free software you can redistribute it
and or modify it under the terms of the gnu general public license
as published by the free software foundation version 2 of the
license the [aic94xx] driver is distributed in the hope that it will
be useful but without any warranty without even the implied warranty
of merchantability or fitness for a particular purpose see the gnu
general public license for more details you should have received a
copy of the gnu general public license along with [aic94xx] driver
if not write to the free software foundation inc 51 franklin st
fifth floor boston ma 02110 1301 usa
this file is licensed under gplv2 this file is part of the
[88se64xx] [88se94xx] driver the [88se64xx] [88se94xx] driver is
free software you can redistribute it and or modify it under the
terms of the gnu general public license as published by the free
software foundation version 2 of the license the [88se64xx]
[88se94xx] driver is distributed in the hope that it will be useful
but without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details you should have received a
copy of the gnu general public license along with [88se64xx]
[88se94xx] driver if not write to the free software foundation inc
51 franklin st fifth floor boston ma 02110 1301 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 2 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.638289549@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
driver is free software you can redistribute it and or modify it
under the terms of the gnu general public license as published by
the free software foundation version 2 the [audiowerk2] [alsa]
driver is distributed in the hope that it will be useful but without
any warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with the [audiowerk2] [alsa] driver if not
write to the free software foundation inc 51 franklin street fifth
floor boston ma 02110 1301 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 5 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.505559553@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this package is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 and
only version 2 as published by the free software foundation
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.371541790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can distribute it and or modify it
under the terms of the gnu general public license as published by
the free software foundation version 2 of the license
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 8 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.231815901@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software void you can redistribute it and or
modify it under the terms of the gnu general public license version
2 as published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http void www gnu
org licenses
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.003433009@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this file is subject to the terms and conditions of version 2 of the
gnu general public license see the file copying in the main
directory of the linux distribution for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 5 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081200.872755311@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation you should have received a
copy of the gnu general public license along with this program if
not write to the free software foundation inc 675 mass ave cambridge
ma 02139 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 1 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204654.276825629@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
the original driver s license is gpl as declared with module_license
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation under version 2 of the license this
program is distributed in the hope that it will be useful but
without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details
the original driver s license is gpl as declared with module_license
[copyright] [c] [2010] [2012] [mauro] [carvalho] [chehab] [driver]
[modified] [by] [in] [order] [to] [work] [with] [upstream] [drxk]
[driver] [and] [tons] [of] [bugs] [got] [fixed] [and] [converted]
[to] [use] [dvb] [usb] [v2] this program is free software you can
redistribute it and or modify it under the terms of the gnu general
public license as published by the free software foundation under
version 2 of the license this program is distributed in the hope
that it will be useful but without any warranty without even the
implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 2 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204654.186977917@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license this
program is distributed in the hope that it will be useful but
without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 53 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.904365654@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 503 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this library is free software you can redistribute it and or modify
it under the terms of the gnu general public license v2 as published
by the free software foundation this library is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu lesser general public license for more details
you should have received a copy of the gnu lesser general public
license along with this library if not write to the free software
foundation inc 59 temple place suite 330 boston ma 02111 1307 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 2 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.539286961@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The emulated ptimer needs to track the level changes, otherwise the
the interrupt will never get deasserted, resulting in the guest getting
stuck in an interrupt storm if it enables ptimer interrupts. This was
found with kvm-unit-tests; the ptimer tests hung as soon as interrupts
were enabled. Typical Linux guests don't have a problem as they prefer
using the virtual timer.
Fixes: bee038a674 ("KVM: arm/arm64: Rework the timer code to use a timer_map")
Signed-off-by: Andrew Jones <drjones@redhat.com>
[Simplified the patch to res we only care about emulated timers here]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
omap3xxx_prm_enable_io_wakeup() is marked __init, but its caller is not, so
we get a warning with clang-8:
WARNING: vmlinux.o(.text+0x343c8): Section mismatch in reference from the function omap3xxx_prm_late_init() to the function .init.text:omap3xxx_prm_enable_io_wakeup()
The function omap3xxx_prm_late_init() references
the function __init omap3xxx_prm_enable_io_wakeup().
This is often because omap3xxx_prm_late_init lacks a __init
annotation or the annotation of omap3xxx_prm_enable_io_wakeup is wrong.
When building with gcc, omap3xxx_prm_enable_io_wakeup() is always
inlined, so we never noticed in the past.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This fixes up two issues with the Gemini DTS files:
- Blank console after a while on the DIR-685 so as
not to waste power
- Fix up the erroneous compatible string on the DNS-313
* tag 'gemini-dts-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ARM: dts: gemini Fix up DNS-313 compatible string
ARM: dts: Blank D-Link DIR-685 console
Signed-off-by: Olof Johansson <olof@lixom.net>
i.MX fixes for 5.2, round 2:
- A fix on LS1028A device tree CPU state to get CPU idle work.
- Enable FSL_EDMA driver support in defconfig to fix a indefinite
deferring probe on Layerscape platforms.
* tag 'imx-fixes-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: defconfig: Enable FSL_EDMA driver
arm64: dts: ls1028a: Fix CPU idle fail.
Signed-off-by: Olof Johansson <olof@lixom.net>
The comment is correct, but the code ends up moving the bits four
places too far, into the VTUOp field.
Fixes: 11ea809f1a (net: dsa: mv88e6xxx: support 256 databases)
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
When running with /sys/module/kvm_intel/parameters/unrestricted_guest=N,
test that a kernel warning does not occur informing us that
vcpu->mmio_needed=1. This can happen when KVM_RUN is called after a
triple fault.
This test was made to detect a bug that was reported by Syzkaller
(https://groups.google.com/forum/#!topic/syzkaller/lHfau8E3SOE) and
fixed with commit bbeac2830f ("KVM: X86: Fix residual mmio emulation
request to userspace").
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SVM's Nested Page Tables (NPT) reuses x86 paging for the host-controlled
page walk. For 32-bit KVM, this means PAE paging is used even when TDP
is enabled, i.e. the PAE root array needs to be allocated.
Fixes: ee6268ba3a ("KVM: x86: Skip pae_root shadow allocation if tdp enabled")
Cc: stable@vger.kernel.org
Reported-by: Jiri Palecek <jpalecek@web.de>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Improve the KVM_{GET,SET}_NESTED_STATE structs by detailing the format
of VMX nested state data in a struct.
In order to avoid changing the ioctl values of
KVM_{GET,SET}_NESTED_STATE, there is a need to preserve
sizeof(struct kvm_nested_state). This is done by defining the data
struct as "data.vmx[0]". It was the most elegant way I found to
preserve struct size while still keeping struct readable and easy to
maintain. It does have a misfortunate side-effect that now it has to be
accessed as "data.vmx[0]" rather than just "data.vmx".
Because we are already modifying these structs, I also modified the
following:
* Define the "format" field values as macros.
* Rename vmcs_pa to vmcs12_pa for better readability.
Signed-off-by: Liran Alon <liran.alon@oracle.com>
[Remove SVM stubs, add KVM_STATE_NESTED_VMX_VMCS12_SIZE. - Paolo]
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When implementing connector fsid cache, we only initialized the cache
when the first mark added to object was added by FAN_REPORT_FID group.
We forgot to update conn->fsid when the second mark is added by
FAN_REPORT_FID group to an already attached connector without fsid
cache.
Reported-and-tested-by: syzbot+c277e8e2f46414645508@syzkaller.appspotmail.com
Fixes: 77115225ac ("fanotify: cache fsid in fsnotify_mark_connector")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Run below script as root, dquot_add_space will return -EDQUOT since
__dquot_transfer call dquot_add_space with flags=0, and dquot_add_space
think it's a preallocation. Fix it by set flags as DQUOT_SPACE_WARN.
mkfs.ext4 -O quota,project /dev/vdb
mount -o prjquota /dev/vdb /mnt
setquota -P 23 1 1 0 0 /dev/vdb
dd if=/dev/zero of=/mnt/test-file bs=4K count=1
chattr -p 23 test-file
Fixes: 7b9ca4c61b ("quota: Reduce contention on dq_data_lock")
Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
With the strict dma mask checking introduced with the switch to
the generic DMA direct code common wifi chips on 32-bit powerbooks
stopped working. Add a 30-bit ZONE_DMA to the 32-bit pmac builds
to allow them to reliably allocate dma coherent memory.
Fixes: 65a21b71f9 ("powerpc/dma: remove dma_nommu_dma_supported")
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
It's a simple typo in the DNS file, which was pretty serious.
No scripts were working properly. Fix it up.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Leaving this NAS with display and backlight on heats it up
and dissipates power. Turn off the screen after 4 minutes,
it comes back on when a user touches the keys.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
A recent change moved the microcode loader hotplug callback into the early
startup phase which is running with interrupts disabled. It missed that
the callbacks invoke sysfs functions which might sleep causing nice 'might
sleep' splats with proper debugging enabled.
Split the callbacks and only load the microcode in the early startup phase
and move the sysfs handling back into the later threaded and preemptible
bringup phase where it was before.
Fixes: 78f4e932f7 ("x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable@vger.kernel.org
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1906182228350.1766@nanos.tec.linutronix.de
Relax the condition that overlayfs supports nfs export, to require
that i_ino is consistent with st_ino/d_ino.
It is enough to require that st_ino and d_ino are consistent.
This fixes the failure of xfstest generic/504, due to mismatch of
st_ino to inode number in the output of /proc/locks.
Fixes: 12574a9f4c ("ovl: consistent i_ino for non-samefs with xino")
Cc: <stable@vger.kernel.org> # v4.19
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
UFS runtime suspend can be triggered after pm_runtime_enable() is invoked
in ufshcd_pltfrm_init(). However if the first runtime suspend is triggered
before binding ufs_hba structure to ufs device structure via
platform_set_drvdata(), then UFS runtime suspend will be no longer
triggered in the future because its dev->power.runtime_error was set in the
first triggering and does not have any chance to be cleared.
To be more clear, dev->power.runtime_error is set if hba is NULL in
ufshcd_runtime_suspend() which returns -EINVAL to rpm_callback() where
dev->power.runtime_error is set as -EINVAL. In this case, any future
rpm_suspend() for UFS device fails because rpm_check_suspend_allowed()
fails due to non-zero
dev->power.runtime_error.
To resolve this issue, make sure the first UFS runtime suspend get valid
"hba" in ufshcd_runtime_suspend(): Enable UFS runtime PM only after hba is
successfully bound to UFS device structure.
Fixes: 62694735ca ([SCSI] ufs: Add runtime PM support for UFS host controller driver)
Cc: stable@vger.kernel.org
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Module autoload for masquerade and redirection does not work.
2) Leak in unqueued packets in nf_ct_frag6_queue(). Ignore duplicated
fragments, pretend they are placed into the queue. Patches from
Guillaume Nault.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, hvsock can enter into a state where epoll_wait on EPOLLOUT will
not return even when the hvsock socket is writable, under some race
condition. This can happen under the following sequence:
- fd = socket(hvsocket)
- fd_out = dup(fd)
- fd_in = dup(fd)
- start a writer thread that writes data to fd_out with a combination of
epoll_wait(fd_out, EPOLLOUT) and
- start a reader thread that reads data from fd_in with a combination of
epoll_wait(fd_in, EPOLLIN)
- On the host, there are two threads that are reading/writing data to the
hvsocket
stack:
hvs_stream_has_space
hvs_notify_poll_out
vsock_poll
sock_poll
ep_poll
Race condition:
check for epollout from ep_poll():
assume no writable space in the socket
hvs_stream_has_space() returns 0
check for epollin from ep_poll():
assume socket has some free space < HVS_PKT_LEN(HVS_SEND_BUF_SIZE)
hvs_stream_has_space() will clear the channel pending send size
host will not notify the guest because the pending send size has
been cleared and so the hvsocket will never mark the
socket writable
Now, the EPOLLOUT will never return even if the socket write buffer is
empty.
The fix is to set the pending size to the default size and never change it.
This way the host will always notify the guest whenever the writable space
is bigger than the pending size. The host is already optimized to *only*
notify the guest when the pending size threshold boundary is crossed and
not everytime.
This change also reduces the cpu usage somewhat since hv_stream_has_space()
is in the hotpath of send:
vsock_stream_sendmsg()->hv_stream_has_space()
Earlier hv_stream_has_space was setting/clearing the pending size on every
call.
Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes an issue where TX Timestamps are not arriving on the error queue
when UDP_SEGMENT CMSG type is combined with CMSG type SO_TIMESTAMPING.
This can be illustrated with an updated updgso_bench_tx program which
includes the '-T' option to test for this condition. It also introduces
the '-P' option which will call poll() before reading the error queue.
./udpgso_bench_tx -4ucTPv -S 1472 -l2 -D 172.16.120.18
poll timeout
udp tx: 0 MB/s 1 calls/s 1 msg/s
The "poll timeout" message above indicates that TX timestamp never
arrived.
This patch preserves tx_flags for the first UDP GSO segment. Only the
first segment is timestamped, even though in some cases there may be
benefital in timestamping both the first and last segment.
Factors in deciding on first segment timestamp only:
- Timestamping both first and last segmented is not feasible. Hardware
can only have one outstanding TS request at a time.
- Timestamping last segment may under report network latency of the
previous segments. Even though the doorbell is suppressed, the ring
producer counter has been incremented.
- Timestamping the first segment has the upside in that it reports
timestamps from the application's view, e.g. RTT.
- Timestamping the first segment has the downside that it may
underreport tx host network latency. It appears that we have to pick
one or the other. And possibly follow-up with a config flag to choose
behavior.
v2: Remove tests as noted by Willem de Bruijn <willemb@google.com>
Moving tests from net to net-next
v3: Update only relevant tx_flag bits as per
Willem de Bruijn <willemb@google.com>
v4: Update comments and commit message as per
Willem de Bruijn <willemb@google.com>
Fixes: ee80d1ebe5 ("udp: add udp gso")
Signed-off-by: Fred Klassen <fklassen@appneta.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski says:
====================
net: netem: fix issues with corrupting GSO frames
Corrupting GSO frames currently leads to crashes, due to skb use
after free. These stem from the skb list handling - the segmented
skbs come back on a list, and this list is not properly unlinked
before enqueuing the segments. Turns out this condition is made
very likely to occur because of another bug - in backlog accounting.
Segments are counted twice, which means qdisc's limit gets reached
leading to drops and making the use after free very likely to happen.
The bugs are fixed in order in which they were added to the tree.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Brendan reports that the use of netem's packet corruption capability
leads to strange crashes. This seems to be caused by
commit d66280b12b ("net: netem: use a list in addition to rbtree")
which uses skb->next pointer to construct a fast-path queue of
in-order skbs.
Packet corruption code has to invoke skb_gso_segment() in case
of skbs in need of GSO. skb_gso_segment() returns a list of
skbs. If next pointers of the skbs on that list do not get cleared
fast path list may point to freed skbs or skbs which are also on
the RB tree.
Let's say skb gets segmented into 3 frames:
A -> B -> C
A gets hooked to the t_head t_tail list by tfifo_enqueue(), but it's
next pointer didn't get cleared so we have:
h t
|/
A -> B -> C
Now if B and C get also get enqueued successfully all is fine, because
tfifo_enqueue() will overwrite the list in order. IOW:
Enqueue B:
h t
| |
A -> B C
Enqueue C:
h t
| |
A -> B -> C
But if B and C get reordered we may end up with:
h t RB tree
|/ |
A -> B -> C B
\
C
Or if they get dropped just:
h t
|/
A -> B -> C
where A and B are already freed.
To reproduce either limit has to be set low to cause freeing of
segs or reorders have to happen (due to delay jitter).
Note that we only have to mark the first segment as not on the
list, "finish_segs" handling of other frags already does that.
Another caveat is that qdisc_drop_all() still has to free all
segments correctly in case of drop of first segment, therefore
we re-link segs before calling it.
v2:
- re-link before drop, v1 was leaking non-first segs if limit
was hit at the first seg
- better commit message which lead to discovering the above :)
Reported-by: Brendan Galloway <brendan.galloway@netronome.com>
Fixes: d66280b12b ("net: netem: use a list in addition to rbtree")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When GSO frame has to be corrupted netem uses skb_gso_segment()
to produce the list of frames, and re-enqueues the segments one
by one. The backlog length has to be adjusted to account for
new frames.
The current calculation is incorrect, leading to wrong backlog
lengths in the parent qdisc (both bytes and packets), and
incorrect packet backlog count in netem itself.
Parent backlog goes negative, netem's packet backlog counts
all non-first segments twice (thus remaining non-zero even
after qdisc is emptied).
Move the variables used to count the adjustment into local
scope to make 100% sure they aren't used at any stage in
backports.
Fixes: 6071bd1aa1 ("netem: Segment GSO packets on enqueue")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Left shifting the signed int value 1 by 31 bits has undefined behaviour
and the shift amount oq_no can be as much as 63. Fix this by using
BIT_ULL(oq_no) instead.
Addresses-Coverity: ("Bad shift operation")
Fixes: f21fb3ed36 ("Add support of Cavium Liquidio ethernet adapters")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long says:
====================
net: fix quite a few dst_cache crashes reported by syzbot
There are two kinds of crashes reported many times by syzbot with no
reproducer. Call Traces are like:
BUG: KASAN: slab-out-of-bounds in rt_cache_valid+0x158/0x190
net/ipv4/route.c:1556
rt_cache_valid+0x158/0x190 net/ipv4/route.c:1556
__mkroute_output net/ipv4/route.c:2332 [inline]
ip_route_output_key_hash_rcu+0x819/0x2d50 net/ipv4/route.c:2564
ip_route_output_key_hash+0x1ef/0x360 net/ipv4/route.c:2393
__ip_route_output_key include/net/route.h:125 [inline]
ip_route_output_flow+0x28/0xc0 net/ipv4/route.c:2651
ip_route_output_key include/net/route.h:135 [inline]
...
or:
kasan: GPF could be caused by NULL-ptr deref or user memory access
RIP: 0010:dst_dev_put+0x24/0x290 net/core/dst.c:168
<IRQ>
rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:200 [inline]
free_fib_info_rcu+0x2e1/0x490 net/ipv4/fib_semantics.c:217
__rcu_reclaim kernel/rcu/rcu.h:240 [inline]
rcu_do_batch kernel/rcu/tree.c:2437 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline]
rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697
...
They were caused by the fib_nh_common percpu member 'nhc_pcpu_rth_output'
overwritten by another percpu variable 'dev->tstats' access overflow in
tipc udp media xmit path when counting packets on a non tunnel device.
The fix is to make udp tunnel work with no tunnel device by allowing not
to count packets on the tstats when the tunnel dev is NULL in Patches 1/3
and 2/3, then pass a NULL tunnel dev in tipc_udp_tunnel() in Patch 3/3.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
udp_tunnel(6)_xmit_skb() called by tipc_udp_xmit() expects a tunnel device
to count packets on dev->tstats, a perpcu variable. However, TIPC is using
udp tunnel with no tunnel device, and pass the lower dev, like veth device
that only initializes dev->lstats(a perpcu variable) when creating it.
Later iptunnel_xmit_stats() called by ip(6)tunnel_xmit() thinks the dev as
a tunnel device, and uses dev->tstats instead of dev->lstats. tstats' each
pointer points to a bigger struct than lstats, so when tstats->tx_bytes is
increased, other percpu variable's members could be overwritten.
syzbot has reported quite a few crashes due to fib_nh_common percpu member
'nhc_pcpu_rth_output' overwritten, call traces are like:
BUG: KASAN: slab-out-of-bounds in rt_cache_valid+0x158/0x190
net/ipv4/route.c:1556
rt_cache_valid+0x158/0x190 net/ipv4/route.c:1556
__mkroute_output net/ipv4/route.c:2332 [inline]
ip_route_output_key_hash_rcu+0x819/0x2d50 net/ipv4/route.c:2564
ip_route_output_key_hash+0x1ef/0x360 net/ipv4/route.c:2393
__ip_route_output_key include/net/route.h:125 [inline]
ip_route_output_flow+0x28/0xc0 net/ipv4/route.c:2651
ip_route_output_key include/net/route.h:135 [inline]
...
or:
kasan: GPF could be caused by NULL-ptr deref or user memory access
RIP: 0010:dst_dev_put+0x24/0x290 net/core/dst.c:168
<IRQ>
rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:200 [inline]
free_fib_info_rcu+0x2e1/0x490 net/ipv4/fib_semantics.c:217
__rcu_reclaim kernel/rcu/rcu.h:240 [inline]
rcu_do_batch kernel/rcu/tree.c:2437 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2716 [inline]
rcu_process_callbacks+0x100a/0x1ac0 kernel/rcu/tree.c:2697
...
The issue exists since tunnel stats update is moved to iptunnel_xmit by
Commit 039f50629b ("ip_tunnel: Move stats update to iptunnel_xmit()"),
and here to fix it by passing a NULL tunnel dev to udp_tunnel(6)_xmit_skb
so that the packets counting won't happen on dev->tstats.
Reported-by: syzbot+9d4c12bfd45a58738d0a@syzkaller.appspotmail.com
Reported-by: syzbot+a9e23ea2aa21044c2798@syzkaller.appspotmail.com
Reported-by: syzbot+c4c4b2bb358bb936ad7e@syzkaller.appspotmail.com
Reported-by: syzbot+0290d2290a607e035ba1@syzkaller.appspotmail.com
Reported-by: syzbot+a43d8d4e7e8a7a9e149e@syzkaller.appspotmail.com
Reported-by: syzbot+a47c5f4c6c00fc1ed16e@syzkaller.appspotmail.com
Fixes: 039f50629b ("ip_tunnel: Move stats update to iptunnel_xmit()")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A similar fix to Patch "ip_tunnel: allow not to count pkts on tstats by
setting skb's dev to NULL" is also needed by ip6_tunnel.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
iptunnel_xmit() works as a common function, also used by a udp tunnel
which doesn't have to have a tunnel device, like how TIPC works with
udp media.
In these cases, we should allow not to count pkts on dev's tstats, so
that udp tunnel can work with no tunnel device safely.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Each function that manipulates the aa_ext struct should reset it's "pos"
member on failure. This ensures that, on failure, no changes are made to
the state of the aa_ext struct.
There are paths were elements are optional and the error path is
used to indicate the optional element is not present. This means
instead of just aborting on error the unpack stream can become
unsynchronized on optional elements, if using one of the affected
functions.
Cc: stable@vger.kernel.org
Fixes: 736ec752d9 ("AppArmor: policy routines for loading and unpacking policy")
Signed-off-by: Mike Salvatore <mike.salvatore@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
A packed AppArmor policy contains null-terminated tag strings that are read
by unpack_nameX(). However, unpack_nameX() uses string functions on them
without ensuring that they are actually null-terminated, potentially
leading to out-of-bounds accesses.
Make sure that the tag string is null-terminated before passing it to
strcmp().
Cc: stable@vger.kernel.org
Fixes: 736ec752d9 ("AppArmor: policy routines for loading and unpacking policy")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
While commit 11c236b89d ("apparmor: add a default null dfa") ensure
every profile has a policy.dfa it does not resize the policy.start[]
to have entries for every possible start value. Which means
PROFILE_MEDIATES is not safe to use on untrusted input. Unforunately
commit b9590ad4c4 ("apparmor: remove POLICY_MEDIATES_SAFE") did not
take into account the start value usage.
The input string in profile_query_cb() is user controlled and is not
properly checked to be within the limited start[] entries, even worse
it can't be as userspace policy is allowed to make us of entries types
the kernel does not know about. This mean usespace can currently cause
the kernel to access memory up to 240 entries beyond the start array
bounds.
Cc: stable@vger.kernel.org
Fixes: b9590ad4c4 ("apparmor: remove POLICY_MEDIATES_SAFE")
Signed-off-by: John Johansen <john.johansen@canonical.com>
When inserting a new mmap entry to the xarray we should check for
'mmap_page' overflow as it is limited to 32 bits.
Fixes: 40909f664d ("RDMA/efa: Add EFA verbs implementation")
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Pull btrfs fixes from David Sterba:
- regression where properties stored as xattrs are not properly
persisted
- a small readahead fix (the fstests testcase for that fix hangs on
unpatched kernel, so we'd like get it merged to ease future testing)
- fix a race during block group creation and deletion
* tag 'for-5.2-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: fix failure to persist compression property xattr deletion on fsync
btrfs: start readahead also in seed devices
Btrfs: fix race between block group removal and block group allocation
Pull ARM SoC fixes from Olof Johansson:
"I've been bad at collecting fixes this release cycle, so this is a
fairly large batch that's been trickling in for a while.
It's the usual mix, more or less.
Some of the bigger things fixed:
- Voltage fix for MMC on TI DRA7 that sometimes would overvoltage
cards
- Regression fixes for D_CAN on am355x
- i.MX6SX cpuidle fix to deal with wakeup latency (dropped uart
chars)
- DT fixes for some DRA7 variants that don't share the superset of
blocks on the chip
plus the usual mix of stuff: minor build/warning fixes, Kconfig
dependencies, and some DT fixlets"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (28 commits)
soc: ixp4xx: npe: Fix an IS_ERR() vs NULL check in probe
ARM: ixp4xx: include irqs.h where needed
ARM: ixp4xx: mark ixp4xx_irq_setup as __init
ARM: ixp4xx: don't select SERIAL_OF_PLATFORM
firmware: trusted_foundations: add ARMv7 dependency
MAINTAINERS: Change QCOM repo location
ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
ARM: davinci: da850-evm: call regulator_has_full_constraints()
ARM: mvebu_v7_defconfig: fix Ethernet on Clearfog
ARM: dts: am335x phytec boards: Fix cd-gpios active level
ARM: dts: dra72x: Disable usb4_tm target module
arm64: arch_k3: Fix kconfig dependency warning
ARM: dts: Drop bogus CLKSEL for timer12 on dra7
MAINTAINERS: Update Stefan Wahren email address
ARM: dts: bcm: Add missing device_type = "memory" property
soc: bcm: brcmstb: biuctrl: Register writes require a barrier
soc: brcmstb: Fix error path for unsupported CPUs
ARM: dts: dra71x: Disable usb4_tm target module
ARM: dts: dra71x: Disable rtc target module
ARM: dts: dra76x: Disable usb4_tm target module
...
Currently after setting tap0 link up, the tun code wakes tx/rx waited
queues up in tun_net_open() when .ndo_open() is called, however the
IFF_UP flag has not been set yet. If there's already a wait queue, it
would fail to transmit when checking the IFF_UP flag in tun_sendmsg().
Then the saving vhost_poll_start() will add the wq into wqh until it
is waken up again. Although this works when IFF_UP flag has been set
when tun_chr_poll detects; this is not true if IFF_UP flag has not
been set at that time. Sadly the latter case is a fatal error, as
the wq will never be waken up in future unless later manually
setting link up on purpose.
Fix this by moving the wakeup process into the NETDEV_UP event
notifying process, this makes sure IFF_UP has been set before all
waited queues been waken up.
Signed-off-by: Fei Li <lifei.shirley@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull stack init fix from Kees Cook:
"This is a small update to the stack auto-initialization self-test code
to deal with the Clang initialization pattern.
It's been in linux-next for a couple weeks; I had waited a bit
wondering if anything more substantial was going to show up, but
nothing has, so I'm sending this now before it gets too late"
* tag 'meminit-v5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lib/test_stackinit: Handle Clang auto-initialization pattern
In sock_getsockopt(), 'optlen' is fetched the first time from userspace.
'len < 0' is then checked. Then in condition 'SO_MEMINFO', 'optlen' is
fetched the second time from userspace.
If change it between two fetches may cause security problems or unexpected
behaivor, and there is no reason to fetch it a second time.
To fix this, we need to remove the second fetch.
Signed-off-by: JingYi Hou <houjingyi647@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It appears that a FAILOVER_MSG can come from peer even when the failure
link is resetting (i.e. just after the 'node_write_unlock()'...). This
means the failover procedure on the node has not been started yet.
The situation is as follows:
node1 node2
linkb linka linka linkb
| | | |
| | x failure |
| | RESETTING |
| | | |
| x failure RESET |
| RESETTING FAILINGOVER |
| | (FAILOVER_MSG) | |
|<-------------------------------------------------|
| *FAILINGOVER | | |
| | (dummy FAILOVER_MSG) | |
|------------------------------------------------->|
| RESET | | FAILOVER_END
| FAILINGOVER RESET |
. . . .
. . . .
. . . .
Once this happens, the link failover procedure will be triggered
wrongly on the receiving node since the node isn't in FAILINGOVER state
but then another link failover will be carried out.
The consequences are:
1) A peer might get stuck in FAILINGOVER state because the 'sync_point'
was set, reset and set incorrectly, the criteria to end the failover
would not be met, it could keep waiting for a message that has already
received.
2) The early FAILOVER_MSG(s) could be queued in the link failover
deferdq but would be purged or not pulled out because the 'drop_point'
was not set correctly.
3) The early FAILOVER_MSG(s) could be dropped too.
4) The dummy FAILOVER_MSG could make the peer leaving FAILINGOVER state
shortly, but later on it would be restarted.
The same situation can also happen when the link is in PEER_RESET state
and a FAILOVER_MSG arrives.
The commit resolves the issues by forcing the link down immediately, so
the failover procedure will be started normally (which is the same as
when receiving a FAILOVER_MSG and the link is in up state).
Also, the function "tipc_node_link_failover()" is toughen to avoid such
a situation from happening.
Acked-by: Jon Maloy <jon.maloy@ericsson.se>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some transceivers may comply with SFF-8472 even though they do not
implement the Digital Diagnostic Monitoring (DDM) interface described in
the spec. The existence of such area is specified by the 6th bit of byte
92, set to 1 if implemented.
Currently, without checking this bit, bnx2x fails trying to read sfp
module's EEPROM with the follow message:
ethtool -m enP5p1s0f1
Cannot get Module EEPROM data: Input/output error
Because it fails to read the additional 256 bytes in which it is assumed
to exist the DDM data.
This issue was noticed using a Mellanox Passive DAC PN 01FT738. The EEPROM
data was confirmed by Mellanox as correct and similar to other Passive
DACs from other manufacturers.
Signed-off-by: Mauro S. M. Rodrigues <maurosr@linux.vnet.ibm.com>
Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
USB 3.2 capability in a host can be detected from the
xHCI Supported Protocol Capability major and minor revision fields.
If major is 0x3 and minor 0x20 then the host is USB 3.2 capable.
For USB 3.2 capable hosts set the root hub lane count to 2.
The Major Revision and Minor Revision fields contain a BCD version number.
The value of the Major Revision field is JJh and the value of the Minor
Revision field is MNh for version JJ.M.N, where JJ = major revision number,
M - minor version number, N = sub-minor version number,
e.g. version 3.1 is represented with a value of 0310h.
Also fix the extra whitespace printed out when announcing regular
SuperSpeed hosts.
Cc: <stable@vger.kernel.org> # v4.18+
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A USB3 device needs to be reset and re-enumarated if the port it
connects to goes to a error state, with link state inactive.
There is no use in trying to recover failed transactions by resetting
endpoints at this stage. Tests show that in rare cases, after multiple
endpoint resets of a roothub port the whole host controller might stop
completely.
Several retries to recover from transaction error can happen as
it can take a long time before the hub thread discovers the USB3
port error and inactive link.
We can't reliably detect the port error from slot or endpoint context
due to a limitation in xhci, see xhci specs section 4.8.3:
"There are several cases where the EP State field in the Output
Endpoint Context may not reflect the current state of an endpoint"
and
"Software should maintain an accurate value for EP State, by tracking it
with an internal variable that is driven by Events and Doorbell accesses"
Same appears to be true for slot state.
set a flag to the corresponding slot if a USB3 roothub port link goes
inactive to prevent both queueing new URBs and resetting endpoints.
Reported-by: Rapolu Chiranjeevi <chiranjeevi.rapolu@intel.com>
Tested-by: Rapolu Chiranjeevi <chiranjeevi.rapolu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The documentation mentions a non-existing capability KVM_CAP_USER_MEM.s
The right name is KVM_CAP_USER_MEMORY.
Signed-off-by: Dennis Restle <derestle@htwg-konstanz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stopping external metadata arrays during resync/recovery causes
retries, loop of interrupting and starting reconstruction, until it
hit at good moment to stop completely. While these retries
curr_mark_cnt can be small- especially on HDD drives, so subtraction
result can be smaller than 0. However it is casted to uint without
checking. As a result of it the status bar in /proc/mdstat while stopping
is strange (it jumps between 0% and 99%).
The real problem occurs here after commit 72deb455b5 ("block: remove
CONFIG_LBDAF"). Sector_div() macro has been changed, now the
divisor is casted to uint32. For db = -8 the divisior(db/32-1) becomes 0.
Check if db value can be really counted and replace these macro by
div64_u64() inline.
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@intel.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
When PGD_SIZE != PAGE_SIZE, arm64 uses kmem_cache for allocation of PGD
memory. That cache was initialized twice: first through
pgtable_cache_init() alias and then as an override for weak
pgd_cache_init().
Remove the alias from pgtable_cache_init() and keep the only pgd_cache
initialization in pgd_cache_init().
Fixes: caa8413601 ("x86/mm: Initialize PGD cache during mm initialization")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
The @linaro.org address is not working and bonucing, so update the
references.
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Pulling linux/prctl.h into asm/ptrace.h in the arm64 UAPI headers causes
userspace build issues for any program (e.g. strace and qemu) that
includes both <sys/prctl.h> and <linux/ptrace.h> when using musl libc:
| error: redefinition of 'struct prctl_mm_map'
| struct prctl_mm_map {
See 6d4a106e19
for a public example of people working around this issue.
Although it's a bit grotty, fix this breakage by duplicating the prctl
constant definitions. Since these are part of the kernel ABI, they
cannot be changed in future and so it's not the end of the world to have
them open-coded.
Fixes: 43d4da2c45 ("arm64/sve: ptrace and ELF coredump support")
Cc: stable@vger.kernel.org
Acked-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Anisse Astier <aastier@freebox.fr>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Change first argument to MODULE_PARM_DESC() calls, that each of them
matched the actual module parameter name. The matching results in
changing (the 'parm' section from) the output of `modinfo overlay` from:
parm: ovl_check_copy_up:Obsolete; does nothing
parm: redirect_max:ushort
parm: ovl_redirect_max:Maximum length of absolute redirect xattr value
parm: redirect_dir:bool
parm: ovl_redirect_dir_def:Default to on or off for the redirect_dir feature
parm: redirect_always_follow:bool
parm: ovl_redirect_always_follow:Follow redirects even if redirect_dir feature is turned off
parm: index:bool
parm: ovl_index_def:Default to on or off for the inodes index feature
parm: nfs_export:bool
parm: ovl_nfs_export_def:Default to on or off for the NFS export feature
parm: xino_auto:bool
parm: ovl_xino_auto_def:Auto enable xino feature
parm: metacopy:bool
parm: ovl_metacopy_def:Default to on or off for the metadata only copy up feature
into:
parm: check_copy_up:Obsolete; does nothing
parm: redirect_max:Maximum length of absolute redirect xattr value (ushort)
parm: redirect_dir:Default to on or off for the redirect_dir feature (bool)
parm: redirect_always_follow:Follow redirects even if redirect_dir feature is turned off (bool)
parm: index:Default to on or off for the inodes index feature (bool)
parm: nfs_export:Default to on or off for the NFS export feature (bool)
parm: xino_auto:Auto enable xino feature (bool)
parm: metacopy:Default to on or off for the metadata only copy up feature (bool)
Signed-off-by: Nicolas Schier <n.schier@avm.de>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
gcc gets a bit confused by the logic in ovl_setup_trap() and
can't figure out whether the local 'trap' variable in the caller
was initialized or not:
fs/overlayfs/super.c: In function 'ovl_fill_super':
fs/overlayfs/super.c:1333:4: error: 'trap' may be used uninitialized in this function [-Werror=maybe-uninitialized]
iput(trap);
^~~~~~~~~~
fs/overlayfs/super.c:1312:17: note: 'trap' was declared here
Reword slightly to make it easier for the compiler to understand.
Fixes: 146d62e5a5 ("ovl: detect overlapping layers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
NFS mounts can be disconnected from fs root. Don't fail the overlapping
layer check because of this.
The check is not authoritative anyway, since topology can change during or
after the check.
Reported-by: Antti Antinoja <antti@fennosys.fi>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 146d62e5a5 ("ovl: detect overlapping layers")
Processing of SDIO IRQs must obviously be prevented while the card is
system suspended, otherwise we may end up trying to communicate with an
uninitialized SDIO card.
Reports throughout the years shows that this is not only a theoretical
problem, but a real issue. So, let's finally fix this problem, by keeping
track of the state for the card and bail out before processing the SDIO
IRQ, in case the card is suspended.
Cc: stable@vger.kernel.org
Reported-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The O2Micro controller only supports tuning at 4-bits. So the host driver
needs to change the bus width while tuning and then set it back when done.
There was a bug in the original implementation in that mmc->ios.bus_width
also wasn't updated. Thus setting the incorrect blocksize in
sdhci_send_tuning which results in a tuning failure.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Fixes: 0086fc217d ("mmc: sdhci: Add support for O2 hardware tuning")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
When Broadcom SDIO cards are idled they go to sleep and a whole
separate subsystem takes over their SDIO communication. This is the
Always-On-Subsystem (AOS) and it can't handle tuning requests.
Specifically, as tested on rk3288-veyron-minnie (which reports having
BCM4354/1 in dmesg), if I force a retune in brcmf_sdio_kso_control()
when "on = 1" (aka we're transition from sleep to wake) by whacking:
bus->sdiodev->func1->card->host->need_retune = 1
...then I can often see tuning fail. In this case dw_mmc reports "All
phases bad!"). Note that I don't get 100% failure, presumably because
sometimes the card itself has already transitioned away from the AOS
itself by the time we try to wake it up. If I force retuning when "on
= 0" (AKA force retuning right before sending the command to go to
sleep) then retuning is always OK.
NOTE: we need _both_ this patch and the patch to avoid triggering
tuning due to CRC errors in the sleep/wake transition, AKA ("brcmfmac:
sdio: Disable auto-tuning around commands expected to fail"). Though
both patches handle issues with Broadcom's AOS, the problems are
distinct:
1. We want to defer (but not ignore) asynchronous (like
timer-requested) tuning requests till the card is awake. However,
we want to ignore CRC errors during the transition, we don't want
to queue deferred tuning request.
2. You could imagine that the AOS could implement retuning but we
could still get errors while transitioning in and out of the AOS.
Similarly you could imagine a seamless transition into and out of
the AOS (with no CRC errors) even if the AOS couldn't handle
tuning.
ALSO NOTE: presumably there is never a desperate need to retune in
order to wake up the card, since doing so is impossible. Luckily the
only way the card can get into sleep state is if we had a good enough
tuning to send it the command to put it into sleep, so presumably that
"good enough" tuning is enough to wake us up, at least with a few
retries.
Cc: stable@vger.kernel.org #v4.18+
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
We want SDIO drivers to be able to temporarily stop retuning when the
driver knows that the SDIO card is not in a state where retuning will
work (maybe because the card is asleep). We'll move the relevant
functions to a place where drivers can call them.
Cc: stable@vger.kernel.org #v4.18+
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
There are certain cases, notably when transitioning between sleep and
active state, when Broadcom SDIO WiFi cards will produce errors on the
SDIO bus. This is evident from the source code where you can see that
we try commands in a loop until we either get success or we've tried
too many times. The comment in the code reinforces this by saying
"just one write attempt may fail"
Unfortunately these failures sometimes end up causing an "-EILSEQ"
back to the core which triggers a retuning of the SDIO card and that
blocks all traffic to the card until it's done.
Let's disable retuning around the commands we expect might fail.
Cc: stable@vger.kernel.org #v4.18+
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Normally when the MMC core sees an "-EILSEQ" error returned by a host
controller then it will trigger a retuning of the card. This is
generally a good idea.
However, if a command is expected to sometimes cause transfer errors
then these transfer errors shouldn't cause a re-tuning. This
re-tuning will be a needless waste of time. One example case where a
transfer is expected to cause errors is when transitioning between
idle (sometimes referred to as "sleep" in Broadcom code) and active
state on certain Broadcom WiFi SDIO cards. Specifically if the card
was already transitioning between states when the command was sent it
could cause an error on the SDIO bus.
Let's add an API that the SDIO function drivers can call that will
temporarily disable the auto-tuning functionality. Then we can add a
call to this in the Broadcom WiFi driver and any other driver that
might have similar needs.
NOTE: this makes the assumption that the card is already tuned well
enough that it's OK to disable the auto-retuning during one of these
error-prone situations. Presumably the driver code performing the
error-prone transfer knows how to recover / retry from errors. ...and
after we can get back to a state where transfers are no longer
error-prone then we can enable the auto-retuning again. If we truly
find ourselves in a case where the card needs to be retuned sometimes
to handle one of these error-prone transfers then we can always try a
few transfers first without auto-retuning and then re-try with
auto-retuning if the first few fail.
Without this change on rk3288-veyron-minnie I periodically see this in
the logs of a machine just sitting there idle:
dwmmc_rockchip ff0d0000.dwmmc: Successfully tuned phase to XYZ
Cc: stable@vger.kernel.org #v4.18+
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This reverts commit 29f6589140.
After that patch landed I find that my kernel log on
rk3288-veyron-minnie and rk3288-veyron-speedy is filled with:
brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
This seems to happen every time the Broadcom WiFi transitions out of
sleep mode. Reverting the commit fixes the problem for me, so that's
what this patch does.
Note that, in general, the justification in the original commit seemed
a little weak. It looked like someone was testing on a SD card
controller that would sometimes die if there were CRC errors on the
bus. This used to happen back in early days of dw_mmc (the controller
on my boards), but we fixed it. Disabling a feature on all boards
just because one SD card controller is broken seems bad.
Fixes: 29f6589140 ("brcmfmac: disable command decode in sdio_aos")
Cc: Wright Feng <wright.feng@cypress.com>
Cc: Double Lo <double.lo@cypress.com>
Cc: Madhan Mohan R <madhanmohan.r@cypress.com>
Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Cc: stable@vger.kernel.org
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Multiple ixp4xx specific files require macros from irqs.h that
were moved out from mach/irqs.h, e.g.:
arch/arm/mach-ixp4xx/vulcan-pci.c:41:19: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
arch/arm/mach-ixp4xx/vulcan-pci.c:49:10: error: implicit declaration of function 'IXP4XX_GPIO_IRQ' [-Werror,-Wimplicit-function-declaration]
return IXP4XX_GPIO_IRQ(INTA);
Include this header in all files that failed to build because of
that.
Fixes: dc8ef8cd3a ("ARM: ixp4xx: Convert to SPARSE_IRQ")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Kbuild complains about ixp4xx_irq_setup not being __init
itself in some configurations:
WARNING: vmlinux.o(.text+0x85bae4): Section mismatch in reference from the function ixp4xx_irq_setup() to the function .init.text:set_handle_irq()
The function ixp4xx_irq_setup() references
the function __init set_handle_irq().
This is often because ixp4xx_irq_setup lacks a __init
annotation or the annotation of set_handle_irq is wrong.
I suspect it normally gets inlined, so we get no such warning,
but clang makes this obvious when the function is left out
of line.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Platforms should not normally select all the device drivers, leave that
up to the user and the defconfig file.
In this case, we get a warning for randconfig builds:
WARNING: unmet direct dependencies detected for SERIAL_OF_PLATFORM
Depends on [n]: TTY [=y] && HAS_IOMEM [=y] && SERIAL_8250 [=n] && OF [=y]
Selected by [y]:
- MACH_IXP4XX_OF [=y] && ARCH_IXP4XX [=y]
Fixes: 9540724ca2 ("ARM: ixp4xx: Add device tree boot support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
The "+sec" extension is invalid for older ARM architectures, but
the code can now be built on any ARM configuration:
/tmp/trusted_foundations-2d0882.s: Assembler messages:
/tmp/trusted_foundations-2d0882.s:194: Error: architectural extension `sec' is not allowed for the current base architecture
/tmp/trusted_foundations-2d0882.s:201: Error: selected processor does not support `smc #0' in ARM mode
/tmp/trusted_foundations-2d0882.s:213: Error: architectural extension `sec' is not allowed for the current base architecture
/tmp/trusted_foundations-2d0882.s:220: Error: selected processor does not support `smc #0' in ARM mode
Add a dependency on ARMv7 for the build.
Fixes: 4cb5d9eca1 ("firmware: Move Trusted Foundations support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Setting params.phy_utmi_width in dwc2_lowlevel_hw_init() is pointless since
it's value will be overwritten by dwc2_init_params().
This change make sure to take in account the generic PHY width information
during paraminitialisation, done in dwc2_set_param_phy_utmi_width().
By doing so, the phy_utmi_width params can still be overrided by
devicetree specific params and will also be checked against hardware
capabilities.
Fixes: 707d80f0a3 ("usb: dwc2: gadget: Replace phyif with phy_utmi_width")
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Enables the FSL EDMA driver by default. This also works around an issue
that imx-i2c driver keeps deferring the probe because of the DMA is not
ready. And currently the DMA engine framework can not correctly tell
if the DMA channels will truly become available later (it will never be
available if the DMA driver is not enabled).
This will cause indefinite messages like below:
[ 3.335829] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
[ 3.344455] ina2xx 0-0040: power monitor ina220 (Rshunt = 1000 uOhm)
[ 3.350917] lm90 0-004c: 0-004c supply vcc not found, using dummy regulator
[ 3.362089] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
[ 3.370741] ina2xx 0-0040: power monitor ina220 (Rshunt = 1000 uOhm)
[ 3.377205] lm90 0-004c: 0-004c supply vcc not found, using dummy regulator
[ 3.388455] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
.....
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Existing code would mistakenly return success in case of error instead
of a proper return value.
Fixes: e9c6c53730 ("RDMA/efa: Add common command handlers")
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The call to sc_buffer_alloc currently returns NULL (no buffer) or
a buffer descriptor.
There is a third case when the port is down. Currently that
returns NULL and this prevents the caller from properly handling the
sc_buffer_alloc() failure. A verbs code link test after the call is
racy so the indication needs to come from the state check inside the allocation
routine to be valid.
Fix by encoding the ECOMM failure like SDMA. IS_ERR_OR_NULL() tests
are added at all call sites. For verbs send, this needs to treat any
error by returning a completion without any MMIO copy.
Fixes: 7724105686 ("IB/hfi1: add driver files")
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Once a send context is taken down due to a link failure, any QPs waiting
for pio credits will stay on the waitlist indefinitely.
Fix by wakeing up all QPs linked to piowait list.
Fixes: 7724105686 ("IB/hfi1: add driver files")
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Once an SDMA engine is taken down due to a link failure, any waiting QPs
that do not have outstanding descriptors in the ring will stay
on the dmawait list as long as the port is down.
Since there is no timer running, they will stay there for a long time.
The fix is to wake up all iowaits linked to dmawait. The send engine
will build and post packets that get flushed back.
Fixes: 7724105686 ("IB/hfi1: add driver files")
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
SDMA and pio flushes will cause a lot of packets to be transmitted
after a link has gone down, using a lot of CPU to retransmit
packets.
Fix for RC QPs by recognizing the flush status and:
- Forcing a timer start
- Putting the QP into a "send one" mode
Fixes: 7724105686 ("IB/hfi1: add driver files")
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Heavy contention of the sde flushlist_lock can cause hard lockups at
extreme scale when the flushing logic is under stress.
Mitigate by replacing the item at a time copy to the local list with
an O(1) list_splice_init() and using the high priority work queue to
do the flushes.
Fixes: 7724105686 ("IB/hfi1: add driver files")
Cc: <stable@vger.kernel.org>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The hcall H_SET_DAWR is used by a guest to set the data address
watchpoint register (DAWR). This hcall is handled in the host in
kvmppc_h_set_dawr() which can be called in either real mode on the
guest exit path from hcall_try_real_mode() in book3s_hv_rmhandlers.S,
or in virtual mode when called from kvmppc_pseries_do_hcall() in
book3s_hv.c.
The function kvmppc_h_set_dawr() updates the dawr and dawrx fields in
the vcpu struct accordingly and then also writes the respective values
into the DAWR and DAWRX registers directly. It is necessary to write
the registers directly here when calling the function in real mode
since the path to re-enter the guest won't do this. However when in
virtual mode the host DAWR and DAWRX values have already been
restored, and so writing the registers would overwrite these.
Additionally there is no reason to write the guest values here as
these will be read from the vcpu struct and written to the registers
appropriately the next time the vcpu is run.
This also avoids the case when handling h_set_dawr for a nested guest
where the guest hypervisor isn't able to write the DAWR and DAWRX
registers directly and must rely on the real hypervisor to do this for
it when it calls H_ENTER_NESTED.
Fixes: c1fe190c06 ("powerpc: Add force enable of DAWR on P9 option")
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Pull vfs fixes from Al Viro:
"MS_MOVE regression fix + breakage in fsmount(2) (also introduced in
this cycle, along with fsmount(2) itself).
I'm still digging through the piles of mail, so there might be more
fixes to follow, but these two are obvious and self-contained, so
there's no point delaying those..."
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs/namespace: fix unprivileged mount propagation
vfs: fsmount: add missing mntget()
Pull networking fixes from David Miller:
"Lots of bug fixes here:
1) Out of bounds access in __bpf_skc_lookup, from Lorenz Bauer.
2) Fix rate reporting in cfg80211_calculate_bitrate_he(), from John
Crispin.
3) Use after free in psock backlog workqueue, from John Fastabend.
4) Fix source port matching in fdb peer flow rule of mlx5, from Raed
Salem.
5) Use atomic_inc_not_zero() in fl6_sock_lookup(), from Eric Dumazet.
6) Network header needs to be set for packet redirect in nfp, from
John Hurley.
7) Fix udp zerocopy refcnt, from Willem de Bruijn.
8) Don't assume linear buffers in vxlan and geneve error handlers,
from Stefano Brivio.
9) Fix TOS matching in mlxsw, from Jiri Pirko.
10) More SCTP cookie memory leak fixes, from Neil Horman.
11) Fix VLAN filtering in rtl8366, from Linus Walluij.
12) Various TCP SACK payload size and fragmentation memory limit fixes
from Eric Dumazet.
13) Use after free in pneigh_get_next(), also from Eric Dumazet.
14) LAPB control block leak fix from Jeremy Sowden"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (145 commits)
lapb: fixed leak of control-blocks.
tipc: purge deferredq list for each grp member in tipc_group_delete
ax25: fix inconsistent lock state in ax25_destroy_timer
neigh: fix use-after-free read in pneigh_get_next
tcp: fix compile error if !CONFIG_SYSCTL
hv_sock: Suppress bogus "may be used uninitialized" warnings
be2net: Fix number of Rx queues used for flow hashing
net: handle 802.1P vlan 0 packets properly
tcp: enforce tcp_min_snd_mss in tcp_mtu_probing()
tcp: add tcp_min_snd_mss sysctl
tcp: tcp_fragment() should apply sane memory limits
tcp: limit payload size of sacked skbs
Revert "net: phylink: set the autoneg state in phylink_phy_change"
bpf: fix nested bpf tracepoints with per-cpu data
bpf: Fix out of bounds memory access in bpf_sk_storage
vsock/virtio: set SOCK_DONE on peer shutdown
net: dsa: rtl8366: Fix up VLAN filtering
net: phylink: set the autoneg state in phylink_phy_change
net: add high_order_alloc_disable sysctl/static key
tcp: add tcp_tx_skb_cache sysctl
...
When propagating mounts across mount namespaces owned by different user
namespaces it is not possible anymore to move or umount the mount in the
less privileged mount namespace.
Here is a reproducer:
sudo mount -t tmpfs tmpfs /mnt
sudo --make-rshared /mnt
# create unprivileged user + mount namespace and preserve propagation
unshare -U -m --map-root --propagation=unchanged
# now change back to the original mount namespace in another terminal:
sudo mkdir /mnt/aaa
sudo mount -t tmpfs tmpfs /mnt/aaa
# now in the unprivileged user + mount namespace
mount --move /mnt/aaa /opt
Unfortunately, this is a pretty big deal for userspace since this is
e.g. used to inject mounts into running unprivileged containers.
So this regression really needs to go away rather quickly.
The problem is that a recent change falsely locked the root of the newly
added mounts by setting MNT_LOCKED. Fix this by only locking the mounts
on copy_mnt_ns() and not when adding a new mount.
Fixes: 3bd045cc9c ("separate copying and locking mount tree on cross-userns copies")
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Tested-by: Christian Brauner <christian@brauner.io>
Acked-by: Christian Brauner <christian@brauner.io>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Christian Brauner <christian@brauner.io>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
We can not hold the GlobalMid_Lock spinlock during the
dfs processing in cifs_reconnect since it invokes things that may sleep
and thus trigger :
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:23
Thus we need to drop the spinlock during this code block.
RHBZ: 1716743
Cc: stable@vger.kernel.org
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Some servers such as Windows 10 will return STATUS_INSUFFICIENT_RESOURCES
as the number of simultaneous SMB3 requests grows (even though the client
has sufficient credits). Return EAGAIN on STATUS_INSUFFICIENT_RESOURCES
so that we can retry writes which fail with this status code.
This (for example) fixes large file copies to Windows 10 on fast networks.
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
There are some backward incompatible features pending
for months, mainly due to on-disk format expensions.
However, we should ensure that it cannot be mounted with
old kernels. Otherwise, it will causes unexpected behaviors.
Fixes: ba2b77a820 ("staging: erofs: add super block operations")
Cc: <stable@vger.kernel.org> # 4.19+
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jonathan writes:
Second set of IIO fixes for the 5.2 cycle.
* ad7150
- sense of bit for controlling adaptive vs fixed threshold was flipped.
* adt7316
- Fix a build issue due to wrong headers for gpio usage.
* lsm6dsx
- correctly suspend / resume i2c slaves when the host goes to sleep.
* mlx90632
- relax a compatability check to allow for newer devices.
Also one counters fix
* counter/ftm-quaddec
- missing dependencies in Kconfig.
* tag 'iio-fixes-for-5.2b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
counter/ftm-quaddec: Add missing dependencies in Kconfig
staging: iio: adt7316: Fix build errors when GPIOLIB is not set
iio: temperature: mlx90632 Relax the compatibility check
iio: imu: st_lsm6dsx: fix PM support for st_lsm6dsx i2c controller
staging:iio:ad7150: fix threshold mode config bit
Eric Dumazet says:
====================
tcp: make sack processing more robust
Jonathan Looney brought to our attention multiple problems
in TCP stack at the sender side.
SACK processing can be abused by malicious peers to either
cause overflows, or increase of memory usage.
First two patches fix the immediate problems.
Since the malicious peers abuse senders by advertizing a very
small MSS in their SYN or SYNACK packet, the last two
patches add a new sysctl so that admins can chose a higher
limit for MSS clamping.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix ssbd.c which depends implicitly on asm/ptrace.h including
linux/prctl.h (through for example linux/compat.h, then linux/time.h,
linux/seqlock.h, linux/spinlock.h and linux/irqflags.h), and uses
PR_SPEC* defines.
This is an issue since we'll soon be removing the include from
asm/ptrace.h.
Fixes: 9cdc0108ba ("arm64: ssbd: Add prctl interface for per-thread mitigation")
Cc: stable@vger.kernel.org
Signed-off-by: Anisse Astier <aastier@freebox.fr>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Pull RISC-V fixes from Paul Walmsley:
"This contains fixes, defconfig, and DT data changes for the v5.2-rc
series.
The fixes are relatively straightforward:
- Addition of a TLB fence in the vmalloc_fault path, so the CPU
doesn't enter an infinite page fault loop
- Readdition of the pm_power_off export, so device drivers that
reassign it can now be built as modules
- A udelay() fix for RV32, fixing a miscomputation of the delay time
- Removal of deprecated smp_mb__*() barriers
This also adds initial DT data infrastructure for arch/riscv, along
with initial data for the SiFive FU540-C000 SoC and the corresponding
HiFive Unleashed board.
We also update the RV64 defconfig to include some core drivers for the
FU540 in the build"
* tag 'riscv-for-v5.2/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: remove unused barrier defines
riscv: mm: synchronize MMU after pte change
riscv: dts: add initial board data for the SiFive HiFive Unleashed
riscv: dts: add initial support for the SiFive FU540-C000 SoC
dt-bindings: riscv: convert cpu binding to json-schema
dt-bindings: riscv: sifive: add YAML documentation for the SiFive FU540
arch: riscv: add support for building DTB files from DT source data
riscv: Fix udelay in RV32.
riscv: export pm_power_off again
RISC-V: defconfig: enable clocks, serial console
When multiple iovecs reference the same page, each get_user_page call
will add a reference to the page. But once we've created the bio that
information gets lost and only a single reference will be dropped after
I/O completion. Use the same_page information returned from
__bio_try_merge_page to drop additional references to pages that were
already present in the bio.
Based on a patch from Ming Lei.
Link: https://lkml.org/lkml/2019/4/23/64
Fixes: 576ed913 ("block: use bio_add_page in bio_iov_iter_get_pages")
Reported-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We currently have an input same_page parameter to __bio_try_merge_page
to prohibit merging in the same page. The rationale for that is that
some callers need to account for every page added to a bio. Instead of
letting these callers call twice into the merge code to account for the
new vs existing page cases, just turn the paramter into an output one that
returns if a merge in the same page occured and let them act accordingly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
After the recent series of cleanups in the properties and xattrs modules
that landed in the 5.2 merge window, we ended up with a regression where
after deleting the compression xattr property through the setflags ioctl,
we don't set the BTRFS_INODE_COPY_EVERYTHING flag in the inode anymore.
As a consequence, if the inode was fsync'ed when it had the compression
property set, after deleting the compression property through the setflags
ioctl and fsync'ing again the inode, the log will still contain the
compression xattr, because the inode did not had that bit set, which
made the fsync not delete all xattrs from the log and copy all xattrs
from the subvolume tree to the log tree.
This regression happens due to the fact that that series of cleanups
made btrfs_set_prop() call the old function do_setxattr() (which is now
named btrfs_setxattr()), and not the old version of btrfs_setxattr(),
which is now called btrfs_setxattr_trans().
Fix this by setting the BTRFS_INODE_COPY_EVERYTHING bit in the current
btrfs_setxattr() function and remove it from everywhere else, including
its setup at btrfs_ioctl_setflags(). This is cleaner, avoids similar
regressions in the future, and centralizes the setup of the bit. After
all, the need to setup this bit should only be in the xattrs module,
since it is an implementation of xattrs.
Fixes: 04e6863b19 ("btrfs: split btrfs_setxattr calls regarding transaction")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
We want to allow the parent lookup to happen even if the index is some
value less than 0. This may be the case if a clk provider only specifies
the .name member to match a string in the "clock-names" DT property. We
shouldn't require that the index be >= 0 to make this use case work.
Fixes: 601b6e9330 ("clk: Allow parents to be specified via clkspec index")
Reported-by: Alexandre Mergnat <amergnat@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
They were introduced in commit fab957c11e ("RISC-V: Atomic and
Locking Code") long after commit 2e39465abc ("locking: Remove
deprecated smp_mb__() barriers") removed the remnants of all previous
instances from the tree.
Signed-off-by: Rolf Eike Beer <eb@emlix.com>
[paul.walmsley@sifive.com: stripped spurious mbox header from patch
description; fixed commit references in patch header]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
An endpoint conflict occurs when the USB is working in device mode
during an isochronous communication. When the endpointA IN direction
is an isochronous IN endpoint, and the host sends an IN token to
endpointA on another device, then the OUT transaction may be missed
regardless the OUT endpoint number. Generally, this occurs when the
device is connected to the host through a hub and other devices are
connected to the same hub.
The affected OUT endpoint can be either control, bulk, isochronous, or
an interrupt endpoint. After the OUT endpoint is primed, if an IN token
to the same endpoint number on another device is received, then the OUT
endpoint may be unprimed (cannot be detected by software), which causes
this endpoint to no longer respond to the host OUT token, and thus, no
corresponding interrupt occurs.
There is no good workaround for this issue, the only thing the software
could do is numbering isochronous IN from the highest endpoint since we
have observed most of device number endpoint from the lowest.
Cc: <stable@vger.kernel.org> #v3.14+
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We don't have a reproducible error case, yet our BSP team suggested that
the mmc_switch_status() command in mmc_select_hs400() should come after
the callback into the driver completing HS400 setup. It makes sense to
me because we want the status of a fully setup HS400, so it will
increase the reliability of the mmc_switch_status() command.
Reported-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Fixes: ba6c7ac3a2 ("mmc: core: more fine-grained hooks for HS400 tuning")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Because RISC-V compliant implementations can cache invalid entries
in TLB, an SFENCE.VMA is necessary after changes to the page table.
This patch adds an SFENCE.vma for the vmalloc_fault path.
Signed-off-by: ShihPo Hung <shihpo.hung@sifive.com>
[paul.walmsley@sifive.com: reversed tab->whitespace conversion,
wrapped comment lines]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: linux-riscv@lists.infradead.org
Cc: stable@vger.kernel.org
The problem is that on 64bit systems then we don't clear the higher
bits of the "pending" variable. So when we do:
ack = pending & ~BIT(STMFX_REG_IRQ_SRC_EN_GPIO);
if (ack) {
the if (ack) condition relies on uninitialized data. The fix it that
I've changed "pending" from an unsigned long to a u32. I changed "n" as
well, because that's a number in the 0-10 range and it fits easily
inside an int. We do need to add a cast to "pending" when we use it in
the for_each_set_bit() loop, but that doesn't cause a problem, it's
fine.
Fixes: 06252ade91 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
At Rob's request, we're starting to migrate our DT binding
documentation to json-schema YAML format. Start by converting our cpu
binding documentation. While doing so, document more properties and
nodes. This includes adding binding documentation support for the E51
and U54 CPU cores ("harts") that are present on this SoC. These cores
are described in:
https://static.dev.sifive.com/FU540-C000-v1.0.pdf
This cpus.yaml file is intended to be a starting point and to
evolve over time. It passes dt-doc-validate as of the yaml-bindings
commit 4c79d42e9216.
This patch was originally based on the ARM json-schema binding
documentation as added by commit 672951cbd1 ("dt-bindings: arm: Convert
cpu binding to json-schema").
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Similar to ARM64, add support for building DTB files from DT source
data for RISC-V boards.
This patch starts with the infrastructure needed for SiFive boards.
Boards from other vendors would add support here in a similar form.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Loys Ollivier <lollivier@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
There is pvinfo writing come from vgpu might be unexpected, like
writing to one unknown address, GVT-g should do as reserved register
to discard any invalid write. Now GVT-g lets it write to the vreg
without prompt error message, should ignore the unexpected pvinfo
write access and leave the vreg as the default value.
For possible guest query GVT-g host feature, this returned proper
value instead of wrong guest setting.
v2: ignore unexpected pvinfo write instead of return predefined value
Fixes: e39c5add32 ("drm/i915/gvt: vGPU MMIO virtualization")
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Weinan Li <weinan.z.li@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
lapb_register calls lapb_create_cb, which initializes the control-
block's ref-count to one, and __lapb_insert_cb, which increments it when
adding the new block to the list of blocks.
lapb_unregister calls __lapb_remove_cb, which decrements the ref-count
when removing control-block from the list of blocks, and calls lapb_put
itself to decrement the ref-count before returning.
However, lapb_unregister also calls __lapb_devtostruct to look up the
right control-block for the given net_device, and __lapb_devtostruct
also bumps the ref-count, which means that when lapb_unregister returns
the ref-count is still 1 and the control-block is leaked.
Call lapb_put after __lapb_devtostruct to fix leak.
Reported-by: syzbot+afb980676c836b4a0afa@syzkaller.appspotmail.com
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Syzbot reported a memleak caused by grp members' deferredq list not
purged when the grp is be deleted.
The issue occurs when more(msg_grp_bc_seqno(hdr), m->bc_rcv_nxt) in
tipc_group_filter_msg() and the skb will stay in deferredq.
So fix it by calling __skb_queue_purge for each member's deferredq
in tipc_group_delete() when a tipc sk leaves the grp.
Fixes: b87a5ea31c ("tipc: guarantee group unicast doesn't bypass group broadcast")
Reported-by: syzbot+78fbe679c8ca8d264a8d@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull irqchip fixes for 5.2 from Marc Zyngier:
- CSky mpintc: allow interrupts to be broadcast
- TI sci-inta: fix error handling
- MIPS GIC: Fix local interrupt mapping
- ITS: Fix command queue wrapping
tcp_tx_skb_cache_key and tcp_rx_skb_cache_key must be available
even if CONFIG_SYSCTL is not set.
Fixes: 0b7d7f6b22 ("tcp: add tcp_tx_skb_cache sysctl")
Fixes: ede61ca474 ("tcp: add tcp_rx_skb_cache sysctl")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc 8.2.0 may report these bogus warnings under some condition:
warning: ‘vnew’ may be used uninitialized in this function
warning: ‘hvs_new’ may be used uninitialized in this function
Actually, the 2 pointers are only initialized and used if the variable
"conn_from_host" is true. The code is not buggy here.
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Number of Rx queues used for flow hashing returned by the driver is
incorrect and this bug prevents user to use the last Rx queue in
indirection table.
Let's say we have a NIC with 6 combined queues:
[root@sm-03 ~]# ethtool -l enp4s0f0
Channel parameters for enp4s0f0:
Pre-set maximums:
RX: 5
TX: 5
Other: 0
Combined: 6
Current hardware settings:
RX: 0
TX: 0
Other: 0
Combined: 6
Default indirection table maps all (6) queues equally but the driver
reports only 5 rings available.
[root@sm-03 ~]# ethtool -x enp4s0f0
RX flow hash indirection table for enp4s0f0 with 5 RX ring(s):
0: 0 1 2 3 4 5 0 1
8: 2 3 4 5 0 1 2 3
16: 4 5 0 1 2 3 4 5
24: 0 1 2 3 4 5 0 1
...
Now change indirection table somehow:
[root@sm-03 ~]# ethtool -X enp4s0f0 weight 1 1
[root@sm-03 ~]# ethtool -x enp4s0f0
RX flow hash indirection table for enp4s0f0 with 6 RX ring(s):
0: 0 0 0 0 0 0 0 0
...
64: 1 1 1 1 1 1 1 1
...
Now it is not possible to change mapping back to equal (default) state:
[root@sm-03 ~]# ethtool -X enp4s0f0 equal 6
Cannot set RX flow hash configuration: Invalid argument
Fixes: 594ad54a2c ("be2net: Add support for setting and getting rx flow hash options")
Reported-by: Tianhao <tizhao@redhat.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When stack receives pkt: [802.1P vlan 0][802.1AD vlan 100][IPv4],
vlan_do_receive() returns false if it does not find vlan_dev. Later
__netif_receive_skb_core() fails to find packet type handler for
skb->protocol 801.1AD and drops the packet.
801.1P header with vlan id 0 should be handled as untagged packets.
This patch fixes it by checking if vlan_id is 0 and processes next vlan
header.
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes for omap variants
Three fixes mostly for dra7 SoC variants that have some devices disabled
compared to the base SoC. These got broken by the change of making devices
probe with ti-sysc interconnect target module and went unnnoticed for a
while. And there is no clkcel bit for timer12 unlike timer1. Also included
is a GPIO direction fix for phytec SDIO card detection.
* tag 'omap-for-v5.2/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: am335x phytec boards: Fix cd-gpios active level
ARM: dts: dra72x: Disable usb4_tm target module
ARM: dts: Drop bogus CLKSEL for timer12 on dra7
Signed-off-by: Olof Johansson <olof@lixom.net>
DaVinci fixes for v5.2 kernel.
This addresses an issue with probe of IO expander on DA850 EVM. There is
also a WARN_ON() fix on DA850 and DA830 devices.
* tag 'davinci-fixes-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
ARM: davinci: da850-evm: call regulator_has_full_constraints()
Signed-off-by: Olof Johansson <olof@lixom.net>
mvebu fixes for 5.2 (part 1)
Fixing defconfig allowing to use Ethernet again on Armada 38x based
boards
* tag 'mvebu-fixes-5.2-1' of git://git.infradead.org/linux-mvebu:
ARM: mvebu_v7_defconfig: fix Ethernet on Clearfog
Signed-off-by: Olof Johansson <olof@lixom.net>
Texas Instruments AM65x fixes for v5.2
- Fix up a Kbuild warning when SOC_TI is not set
* tag 'am654-fixes-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux:
arm64: arch_k3: Fix kconfig dependency warning
Signed-off-by: Olof Johansson <olof@lixom.net>
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.2-rc1, please pull the following:
- Florian fixes the remaining Broadcom DTS files to have a valid
device_type = "memory" property which was missed during the removal of
skeleton.dtsi
* tag 'arm-soc/for-5.2/devicetree-fixes' of https://github.com/Broadcom/stblinux:
ARM: dts: bcm: Add missing device_type = "memory" property
Signed-off-by: Olof Johansson <olof@lixom.net>
Fixes for omap variants for dra7 mmc voltage and boot issues
This series contains dra7 mmc voltage fixes, and fixes to the recent
changes to probe devices with device tree data insteas of legacy
platform data:
- Two fixes for dra7 mmc that needs 1.8V mode disabled as in case of a
reset, the bootrom will try to access the mmc card at 3.3V potentially
damaging the card
- Two regression fixes for am335x d_can. We must allow devices with no
control registers for ti-sysc interconnect target module driver for
at least d_can, and we remove the incorrect control registers for
d_can. And we must configure the osc clock for d_can as otherwise
register access may fail depending on the bootloader version
- Four regression fixes for dra7 variant dts files to tag rtc and usb4
as disabled for dra71x and dra76x. These SoC variants do not have
these devices, and got accidentally enabled when the L4 interconnect
got defined in the dra7-l4.dtsi for the dra7 SoC family
* tag 'omap-for-v5.2/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: dra71x: Disable usb4_tm target module
ARM: dts: dra71x: Disable rtc target module
ARM: dts: dra76x: Disable usb4_tm target module
ARM: dts: dra76x: Disable rtc target module
ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
bus: ti-sysc: Handle devices with no control registers
ARM: dts: Configure osc clock for d_can on am335x
Signed-off-by: Olof Johansson <olof@lixom.net>
i.MX fixes for 5.2:
- A build fix for soc-imx8 driver which needs SOC_BUS support. To
avoid dealing with the dependency for every single i.MX SoC bus
driver, we selects at from architecture level.
- A fix on i.MX SCU firmware driver to ensure SCU irq is enabled only
after IPC is ready.
- A regression fix on cpuidle-imx6sx driver, which causes some
characters loss on serial communication.
* tag 'imx-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx: cpuidle-imx6sx: Restrict the SW2ISO increase to i.MX6SX
firmware: imx: SCU irq should ONLY be enabled after SCU IPC is ready
arm64: imx: Fix build error without CONFIG_SOC_BUS
Signed-off-by: Olof Johansson <olof@lixom.net>
This pull request contains MAINTAINERS file update for Broadcom
ARM/ARM64 SoCs, please pull the following:
- Stefan updates his email address under the BCM2835 entry
* tag 'arm-soc/for-5.2/maintainers' of https://github.com/Broadcom/stblinux:
MAINTAINERS: Update Stefan Wahren email address
Signed-off-by: Olof Johansson <olof@lixom.net>
This pull request contains Broadcom ARM/ARM64/MIPS SoCs device drivers
fixes for 5.2-rc1, please pull the following:
- Florian fixes the biuctrl driver not to create an error condition/path
upon unsupported CPU and also fixes the biuctrl driver writes to used
a data barrier which is necessary given the HW block design
* tag 'arm-soc/for-5.2/drivers-fixes' of https://github.com/Broadcom/stblinux:
soc: bcm: brcmstb: biuctrl: Register writes require a barrier
soc: brcmstb: Fix error path for unsupported CPUs
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull x86 fixes from Thomas Gleixner:
"The accumulated fixes from this and last week:
- Fix vmalloc TLB flush and map range calculations which lead to
stale TLBs, spurious faults and other hard to diagnose issues.
- Use fault_in_pages_writable() for prefaulting the user stack in the
FPU code as it's less fragile than the current solution
- Use the PF_KTHREAD flag when checking for a kernel thread instead
of current->mm as the latter can give the wrong answer due to
use_mm()
- Compute the vmemmap size correctly for KASLR and 5-Level paging.
Otherwise this can end up with a way too small vmemmap area.
- Make KASAN and 5-level paging work again by making sure that all
invalid bits are masked out when computing the P4D offset. This
worked before but got broken recently when the LDT remap area was
moved.
- Prevent a NULL pointer dereference in the resource control code
which can be triggered with certain mount options when the
requested resource is not available.
- Enforce ordering of microcode loading vs. perf initialization on
secondary CPUs. Otherwise perf tries to access a non-existing MSR
as the boot CPU marked it as available.
- Don't stop the resource control group walk early otherwise the
control bitmaps are not updated correctly and become inconsistent.
- Unbreak kgdb by returning 0 on success from
kgdb_arch_set_breakpoint() instead of an error code.
- Add more Icelake CPU model defines so depending changes can be
queued in other trees"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback
x86/kasan: Fix boot with 5-level paging and KASAN
x86/fpu: Don't use current->mm to check for a kthread
x86/kgdb: Return 0 from kgdb_arch_set_breakpoint()
x86/resctrl: Prevent NULL pointer dereference when local MBM is disabled
x86/resctrl: Don't stop walking closids when a locksetup group is found
x86/fpu: Update kernel's FPU state before using for the fsave header
x86/mm/KASLR: Compute the size of the vmemmap section properly
x86/fpu: Use fault_in_pages_writeable() for pre-faulting
x86/CPU: Add more Icelake model numbers
mm/vmalloc: Avoid rare case of flushing TLB with weird arguments
mm/vmalloc: Fix calculation of direct map addr range
Pull timer fixes from Thomas Gleixner:
"A set of small fixes:
- Repair the ktime_get_coarse() functions so they actually deliver
what they are supposed to: tick granular time stamps. The current
code missed to add the accumulated nanoseconds part of the
timekeeper so the resulting granularity was 1 second.
- Prevent the tracer from infinitely recursing into time getter
functions in the arm architectured timer by marking these functions
notrace
- Fix a trivial compiler warning caused by wrong qualifier ordering"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping: Repair ktime_get_coarse*() granularity
clocksource/drivers/arm_arch_timer: Don't trace count reader functions
clocksource/drivers/timer-ti-dm: Change to new style declaration
Pull RAS fixes from Thomas Gleixner:
"Two small fixes for RAS:
- Use a proper search algorithm to find the correct element in the
CEC array. The replacement was a better choice than fixing the
crash causes by the original search function with horrible duct
tape.
- Move the timer based decay function into thread context so it can
actually acquire the mutex which protects the CEC array to prevent
corruption"
* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
RAS/CEC: Convert the timer callback to a workqueue
RAS/CEC: Fix binary search function
Some TCP peers announce a very small MSS option in their SYN and/or
SYN/ACK messages.
This forces the stack to send packets with a very high network/cpu
overhead.
Linux has enforced a minimal value of 48. Since this value includes
the size of TCP options, and that the options can consume up to 40
bytes, this means that each segment can include only 8 bytes of payload.
In some cases, it can be useful to increase the minimal value
to a saner value.
We still let the default to 48 (TCP_MIN_SND_MSS), for compatibility
reasons.
Note that TCP_MAXSEG socket option enforces a minimal value
of (TCP_MIN_MSS). David Miller increased this minimal value
in commit c39508d6f1 ("tcp: Make TCP_MAXSEG minimum more correct.")
from 64 to 88.
We might in the future merge TCP_MIN_SND_MSS and TCP_MIN_MSS.
CVE-2019-11479 -- tcp mss hardcoded to 48
Signed-off-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Jonathan Looney <jtl@netflix.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Bruce Curtis <brucec@netflix.com>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jonathan Looney reported that a malicious peer can force a sender
to fragment its retransmit queue into tiny skbs, inflating memory
usage and/or overflow 32bit counters.
TCP allows an application to queue up to sk_sndbuf bytes,
so we need to give some allowance for non malicious splitting
of retransmit queue.
A new SNMP counter is added to monitor how many times TCP
did not allow to split an skb if the allowance was exceeded.
Note that this counter might increase in the case applications
use SO_SNDBUF socket option to lower sk_sndbuf.
CVE-2019-11478 : tcp_fragment, prevent fragmenting a packet when the
socket is already using more than half the allowed space
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jonathan Looney <jtl@netflix.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Bruce Curtis <brucec@netflix.com>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jonathan Looney reported that TCP can trigger the following crash
in tcp_shifted_skb() :
BUG_ON(tcp_skb_pcount(skb) < pcount);
This can happen if the remote peer has advertized the smallest
MSS that linux TCP accepts : 48
An skb can hold 17 fragments, and each fragment can hold 32KB
on x86, or 64KB on PowerPC.
This means that the 16bit witdh of TCP_SKB_CB(skb)->tcp_gso_segs
can overflow.
Note that tcp_sendmsg() builds skbs with less than 64KB
of payload, so this problem needs SACK to be enabled.
SACK blocks allow TCP to coalesce multiple skbs in the retransmit
queue, thus filling the 17 fragments to maximal capacity.
CVE-2019-11477 -- u16 overflow of TCP_SKB_CB(skb)->tcp_gso_segs
Fixes: 832d11c5cd ("tcp: Try to restore large SKBs while SACK processing")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jonathan Looney <jtl@netflix.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Bruce Curtis <brucec@netflix.com>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov says:
====================
pull-request: bpf 2019-06-15
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) fix stack layout of JITed x64 bpf code, from Alexei.
2) fix out of bounds memory access in bpf_sk_storage, from Arthur.
3) fix lpm trie walk, from Jonathan.
4) fix nested bpf_perf_event_output, from Matt.
5) and several other fixes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit ef7bfa8472.
Russell King espressed some strong opposition to this
change, explaining that this is trying to make phylink
behave outside of how it has been designed.
Signed-off-by: David S. Miller <davem@davemloft.net>
BPF_PROG_TYPE_RAW_TRACEPOINTs can be executed nested on the same CPU, as
they do not increment bpf_prog_active while executing.
This enables three levels of nesting, to support
- a kprobe or raw tp or perf event,
- another one of the above that irq context happens to call, and
- another one in nmi context
(at most one of which may be a kprobe or perf event).
Fixes: 20b9d7ac48 ("bpf: avoid excessive stack usage for perf_sample_data")
Signed-off-by: Matt Mullins <mmullins@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
bpf_sk_storage maps use multiple spin locks to reduce contention.
The number of locks to use is determined by the number of possible CPUs.
With only 1 possible CPU, bucket_log == 0, and 2^0 = 1 locks are used.
When updating elements, the correct lock is determined with hash_ptr().
Calling hash_ptr() with 0 bits is undefined behavior, as it does:
x >> (64 - bits)
Using the value results in an out of bounds memory access.
In my case, this manifested itself as a page fault when raw_spin_lock_bh()
is called later, when running the self tests:
./tools/testing/selftests/bpf/test_verifier 773 775
[ 16.366342] BUG: unable to handle page fault for address: ffff8fe7a66f93f8
Force the minimum number of locks to two.
Signed-off-by: Arthur Fabre <afabre@cloudflare.com>
Fixes: 6ac99e8f23 ("bpf: Introduce bpf sk local storage")
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Set the SOCK_DONE flag to match the TCP_CLOSING state when a peer has
shut down and there is nothing left to read.
This fixes the following bug:
1) Peer sends SHUTDOWN(RDWR).
2) Socket enters TCP_CLOSING but SOCK_DONE is not set.
3) read() returns -ENOTCONN until close() is called, then returns 0.
Signed-off-by: Stephen Barber <smbarber@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
We get this regression when using RTL8366RB as part of a bridge
with OpenWrt:
WARNING: CPU: 0 PID: 1347 at net/switchdev/switchdev.c:291
switchdev_port_attr_set_now+0x80/0xa4
lan0: Commit of attribute (id=7) failed.
(...)
realtek-smi switch lan0: failed to initialize vlan filtering on this port
This is because it is trying to disable VLAN filtering
on VLAN0, as we have forgot to add 1 to the port number
to get the right VLAN in rtl8366_vlan_filtering(): when
we initialize the VLAN we associate VLAN1 with port 0,
VLAN2 with port 1 etc, so we need to add 1 to the port
offset.
Fixes: d8652956cf ("net: dsa: realtek-smi: Add Realtek SMI driver")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The phy_state field of phylink should carry only valid information
especially when this can be passed to the .mac_config callback.
Update the an_enabled field with the autoneg state in the
phylink_phy_change function.
Fixes: 9525ae8395 ("phylink: add phylink infrastructure")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull x86 platform driver fixes from Andy Shevchenko:
- fix a couple of Mellanox driver enumeration issues
- fix ASUS laptop regression with backlight
- fix Dell computers that got a wrong mode (tablet versus laptop) after
resume
* tag 'platform-drivers-x86-v5.2-3' of git://git.infradead.org/linux-platform-drivers-x86:
platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow
platform/x86: mlx-platform: Fix parent device in i2c-mux-reg device registration
platform/x86: intel-vbtn: Report switch events when event wakes device
platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
Pull USB fixes from Greg KH:
"Here are some small USB driver fixes for 5.2-rc5
Nothing major, just some small gadget fixes, usb-serial new device
ids, a few new quirks, and some small fixes for some regressions that
have been found after the big 5.2-rc1 merge.
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: typec: Make sure an alt mode exist before getting its partner
usb: gadget: udc: lpc32xx: fix return value check in lpc32xx_udc_probe()
usb: gadget: dwc2: fix zlp handling
usb: dwc2: Set actual frame number for completed ISOC transfer for none DDMA
usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC
usb: gadget: fusb300_udc: Fix memory leak of fusb300->ep[i]
usb: phy: mxs: Disable external charger detect in mxs_phy_hw_init()
usb: dwc2: Fix DMA cache alignment issues
usb: dwc2: host: Fix wMaxPacketSize handling (fix webcam regression)
USB: Fix chipmunk-like voice when using Logitech C270 for recording audio.
USB: usb-storage: Add new ID to ums-realtek
usb: typec: ucsi: ccg: fix memory leak in do_flash
USB: serial: option: add Telit 0x1260 and 0x1261 compositions
USB: serial: pl2303: add Allied Telesis VT-Kit3
USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode
Pull powerpc fixes from Michael Ellerman:
"One fix for a regression introduced by our 32-bit KASAN support, which
broke booting on machines with "bootx" early debugging enabled.
A fix for a bug which broke kexec on 32-bit, introduced by changes to
the 32-bit STRICT_KERNEL_RWX support in v5.1.
Finally two fixes going to stable for our THP split/collapse handling,
discovered by Nick. The first fixes random crashes and/or corruption
in guests under sufficient load.
Thanks to: Nicholas Piggin, Christophe Leroy, Aaro Koskinen, Mathieu
Malaterre"
* tag 'powerpc-5.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/32s: fix booting with CONFIG_PPC_EARLY_DEBUG_BOOTX
powerpc/64s: __find_linux_pte() synchronization vs pmdp_invalidate()
powerpc/64s: Fix THP PMD collapse serialisation
powerpc: Fix kexec failure on book3s/32
Pull tracing fixes from Steven Rostedt:
- Out of range read of stack trace output
- Fix for NULL pointer dereference in trace_uprobe_create()
- Fix to a livepatching / ftrace permission race in the module code
- Fix for NULL pointer dereference in free_ftrace_func_mapper()
- A couple of build warning clean ups
* tag 'trace-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace: Fix NULL pointer dereference in free_ftrace_func_mapper()
module: Fix livepatch/ftrace module text permissions race
tracing/uprobe: Fix obsolete comment on trace_uprobe_create()
tracing/uprobe: Fix NULL pointer dereference in trace_uprobe_create()
tracing: Make two symbols static
tracing: avoid build warning with HAVE_NOP_MCOUNT
tracing: Fix out-of-range read in trace_stack_print()
Build failure was introduced by the commit identified below,
due to missed macro expension leading to wrong called function's name.
arch/powerpc/kernel/head_fsl_booke.o: In function `SystemCall':
arch/powerpc/kernel/head_fsl_booke.S:416: undefined reference to `kvmppc_handler_BOOKE_INTERRUPT_SYSCALL_SPRN_SRR1'
Makefile:1052: recipe for target 'vmlinux' failed
The called function should be kvmppc_handler_8_0x01B(). This patch fixes it.
Reported-by: Paul Mackerras <paulus@ozlabs.org>
Fixes: 1a4b739bbb ("powerpc/32: implement fast entry for syscalls on BOOKE")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Use r10 instead of r9 to calculate CPU offset as r9 contains
the value from SRR1 which is used later.
Fixes: 1a4b739bbb ("powerpc/32: implement fast entry for syscalls on BOOKE")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The patch referenced below moved the loading of segment registers
out of load_up_mmu() in order to do it earlier in the boot sequence.
However, the secondary CPU still needs it to be done when loading up
the MMU.
Reported-by: Erhard F. <erhard_f@mailbox.org>
Fixes: 215b823707 ("powerpc/32s: set up an early static hash table for KASAN")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Adric Blake reported the following warning during suspend-resume:
Enabling non-boot CPUs ...
x86: Booting SMP configuration:
smpboot: Booting Node 0 Processor 1 APIC 0x2
unchecked MSR access error: WRMSR to 0x10f (tried to write 0x0000000000000000) \
at rIP: 0xffffffff8d267924 (native_write_msr+0x4/0x20)
Call Trace:
intel_set_tfa
intel_pmu_cpu_starting
? x86_pmu_dead_cpu
x86_pmu_starting_cpu
cpuhp_invoke_callback
? _raw_spin_lock_irqsave
notify_cpu_starting
start_secondary
secondary_startup_64
microcode: sig=0x806ea, pf=0x80, revision=0x96
microcode: updated to revision 0xb4, date = 2019-04-01
CPU1 is up
The MSR in question is MSR_TFA_RTM_FORCE_ABORT and that MSR is emulated
by microcode. The log above shows that the microcode loader callback
happens after the PMU restoration, leading to the conjecture that
because the microcode hasn't been updated yet, that MSR is not present
yet, leading to the #GP.
Add a microcode loader-specific hotplug vector which comes before
the PERF vectors and thus executes earlier and makes sure the MSR is
present.
Fixes: 400816f60c ("perf/x86/intel: Implement support for TSX Force Abort")
Reported-by: Adric Blake <promarbler14@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org>
Cc: x86@kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203637
Pull cgroup fixes from Tejun Heo:
"This has an unusually high density of tricky fixes:
- task_get_css() could deadlock when it races against a dying cgroup.
- cgroup.procs didn't list thread group leaders with live threads.
This could mislead readers to think that a cgroup is empty when
it's not. Fixed by making PROCS iterator include dead tasks. I made
a couple mistakes making this change and this pull request contains
a couple follow-up patches.
- When cpusets run out of online cpus, it updates cpusmasks of member
tasks in bizarre ways. Joel improved the behavior significantly"
* 'for-5.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: restore sanity to cpuset_cpus_allowed_fallback()
cgroup: Fix css_task_iter_advance_css_set() cset skip condition
cgroup: css_task_iter_skip()'d iterators must be advanced before accessed
cgroup: Include dying leaders with live threads in PROCS iterations
cgroup: Implement css_task_iter_skip()
cgroup: Call cgroup_release() before __exit_signal()
docs cgroups: add another example size for hugetlb
cgroup: Use css_tryget() instead of css_tryget_online() in task_get_css()
Pull drm fixes from Daniel Vetter:
"Nothing unsettling here, also not aware of anything serious still
pending.
The edid override regression fix took a bit longer since this seems to
be an area with an overabundance of bad options. But the fix we have
now seems like a good path forward.
Next week it should be back to Dave.
Summary:
- fix regression on amdgpu on SI
- fix edid override regression
- driver fixes: amdgpu, i915, mediatek, meson, panfrost
- fix writecombine for vmap in gem-shmem helper (used by panfrost)
- add more panel quirks"
* tag 'drm-fixes-2019-06-14' of git://anongit.freedesktop.org/drm/drm: (25 commits)
drm/amdgpu: return 0 by default in amdgpu_pm_load_smu_firmware
drm/amdgpu: Fix bounds checking in amdgpu_ras_is_supported()
drm: add fallback override/firmware EDID modes workaround
drm/edid: abstract override/firmware EDID retrieval
drm/i915/perf: fix whitelist on Gen10+
drm/i915/sdvo: Implement proper HDMI audio support for SDVO
drm/i915: Fix per-pixel alpha with CCS
drm/i915/dmc: protect against reading random memory
drm/i915/dsi: Use a fuzzy check for burst mode clock check
drm/amdgpu/{uvd,vcn}: fetch ring's read_ptr after alloc
drm/panfrost: Require the simple_ondemand governor
drm/panfrost: make devfreq optional again
drm/gem_shmem: Use a writecombine mapping for ->vaddr
drm: panel-orientation-quirks: Add quirk for GPD MicroPC
drm: panel-orientation-quirks: Add quirk for GPD pocket2
drm/meson: fix G12A primary plane disabling
drm/meson: fix primary plane disabling
drm/meson: fix G12A HDMI PLL settings for 4K60 1000/1001 variations
drm/mediatek: call mtk_dsi_stop() after mtk_drm_crtc_atomic_disable()
drm/mediatek: clear num_pipes when unbind driver
...
Pull gfs2 fix from Andreas Gruenbacher:
"Fix rounding error in gfs2_iomap_page_prepare"
* tag 'gfs2-v5.2.fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Fix rounding error in gfs2_iomap_page_prepare
Eric Dumazet says:
====================
tcp: add three static keys
Recent addition of per TCP socket rx/tx cache brought
regressions for some workloads, as reported by Feng Tang.
It seems better to make them opt-in, before we adopt better
heuristics.
The last patch adds high_order_alloc_disable sysctl
to ask TCP sendmsg() to exclusively use order-0 allocations,
as mm layer has specific optimizations.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
>From linux-3.7, (commit 5640f76858 "net: use a per task frag
allocator") TCP sendmsg() has preferred using order-3 allocations.
While it gives good results for most cases, we had reports
that heavy uses of TCP over loopback were hitting a spinlock
contention in page allocations/freeing.
This commits adds a sysctl so that admins can opt-in
for order-0 allocations. Hopefully mm layer might optimize
order-3 allocations in the future since it could give us
a nice boost (see 8 lines of following benchmark)
The following benchmark shows a win when more than 8 TCP_STREAM
threads are running (56 x86 cores server in my tests)
for thr in {1..30}
do
sysctl -wq net.core.high_order_alloc_disable=0
T0=`./super_netperf $thr -H 127.0.0.1 -l 15`
sysctl -wq net.core.high_order_alloc_disable=1
T1=`./super_netperf $thr -H 127.0.0.1 -l 15`
echo $thr:$T0:$T1
done
1: 49979: 37267
2: 98745: 76286
3: 141088: 110051
4: 177414: 144772
5: 197587: 173563
6: 215377: 208448
7: 241061: 234087
8: 267155: 263373
9: 295069: 297402
10: 312393: 335213
11: 340462: 368778
12: 371366: 403954
13: 412344: 443713
14: 426617: 473580
15: 474418: 507861
16: 503261: 538539
17: 522331: 563096
18: 532409: 567084
19: 550824: 605240
20: 525493: 641988
21: 564574: 665843
22: 567349: 690868
23: 583846: 710917
24: 588715: 736306
25: 603212: 763494
26: 604083: 792654
27: 602241: 796450
28: 604291: 797993
29: 611610: 833249
30: 577356: 841062
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Feng Tang reported a performance regression after introduction
of per TCP socket tx/rx caches, for TCP over loopback (netperf)
There is high chance the regression is caused by a change on
how well the 32 KB per-thread page (current->task_frag) can
be recycled, and lack of pcp caches for order-3 pages.
I could not reproduce the regression myself, cpus all being
spinning on the mm spinlocks for page allocs/freeing, regardless
of enabling or disabling the per tcp socket caches.
It seems best to disable the feature by default, and let
admins enabling it.
MM layer either needs to provide scalable order-3 pages
allocations, or could attempt a trylock on zone->lock if
the caller only attempts to get a high-order page and is
able to fallback to order-0 ones in case of pressure.
Tests run on a 56 cores host (112 hyper threads)
- 35.49% netperf [kernel.vmlinux] [k] queued_spin_lock_slowpath
- 35.49% queued_spin_lock_slowpath
- 18.18% get_page_from_freelist
- __alloc_pages_nodemask
- 18.18% alloc_pages_current
skb_page_frag_refill
sk_page_frag_refill
tcp_sendmsg_locked
tcp_sendmsg
inet_sendmsg
sock_sendmsg
__sys_sendto
__x64_sys_sendto
do_syscall_64
entry_SYSCALL_64_after_hwframe
__libc_send
+ 17.31% __free_pages_ok
+ 31.43% swapper [kernel.vmlinux] [k] intel_idle
+ 9.12% netperf [kernel.vmlinux] [k] copy_user_enhanced_fast_string
+ 6.53% netserver [kernel.vmlinux] [k] copy_user_enhanced_fast_string
+ 0.69% netserver [kernel.vmlinux] [k] queued_spin_lock_slowpath
+ 0.68% netperf [kernel.vmlinux] [k] skb_release_data
+ 0.52% netperf [kernel.vmlinux] [k] tcp_sendmsg_locked
0.46% netperf [kernel.vmlinux] [k] _raw_spin_lock_irqsave
Fixes: 472c2e07ee ("tcp: add one skb cache for tx")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of relying on rps_needed, it is safer to use a separate
static key, since we do not want to enable TCP rx_skb_cache
by default. This feature can cause huge increase of memory
usage on hosts with millions of sockets.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Convert proc_dointvec_minmax_bpf_stats() into a more generic
helper, since we are going to use jump labels more often.
Note that sysctl_bpf_stats_enabled is removed, since
it is no longer needed/used.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
For better consistency of synthetic NIC names, we set the probe mode to
PROBE_FORCE_SYNCHRONOUS. So the names can be aligned with the vmbus
channel offer sequence.
Fixes: af0a5646cb ("use the new async probing feature for the hyperv drivers")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current flower mask creating code assumes that temporary mask that is used
when inserting new filter is stack allocated. To prevent race condition
with data patch synchronize_rcu() is called every time fl_create_new_mask()
replaces temporary stack allocated mask. As reported by Jiri, this
increases runtime of creating 20000 flower classifiers from 4 seconds to
163 seconds. However, this design is no longer necessary since temporary
mask was converted to be dynamically allocated by commit 2cddd20147
("net/sched: cls_flower: allocate mask dynamically in fl_change()").
Remove synchronize_rcu() calls from mask creation code. Instead, refactor
fl_change() to always deallocate temporary mask with rcu grace period.
Fixes: 195c234d15 ("net: sched: flower: handle concurrent mask insertion")
Reported-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Tested-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When building with CONFIG_NET_DSA_REALTEK_SMI and CONFIG_REALTEK_PHY
enabled as loadable modules, we see the following warning:
warning: same module names found:
drivers/net/phy/realtek.ko
drivers/net/dsa/realtek.ko
Rework so the driver name is realtek-smi instead of realtek.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Based on comments from Xin, even after fixes for our recent syzbot
report of cookie memory leaks, its possible to get a resend of an INIT
chunk which would lead to us leaking cookie memory.
To ensure that we don't leak cookie memory, free any previously
allocated cookie first.
Change notes
v1->v2
update subsystem tag in subject (davem)
repeat kfree check for peer_random and peer_hmacs (xin)
v2->v3
net->sctp
also free peer_chunks
v3->v4
fix subject tags
v4->v5
remove cut line
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reported-by: syzbot+f7e9153b037eac9b1df8@syzkaller.appspotmail.com
CC: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
CC: Xin Long <lucien.xin@gmail.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: netdev@vger.kernel.org
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If some of the switch ports were not listed in the device tree, due to
being unused, the ksz_mib_read_work function ended up accessing a NULL
dp->slave pointer and causing an oops. Skip checking statistics for any
unused ports.
Fixes: 7c6ff470aa ("net: dsa: microchip: add MIB counter reading support")
Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Permit mux_id values up to 254 to be used in qmimux_register_device()
for compatibility with ip(8) and the rmnet driver.
Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Switch qmimux_unregister_device() and qmi_wwan_disconnect() to
use unregister_netdevice_queue() and unregister_netdevice_many()
instead of unregister_netdevice(). This avoids RCU stalls which
have been observed on device disconnect in certain setups otherwise.
Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The QMAP code in the qmi_wwan driver is based on the CodeAurora GobiNet
driver which does not process QMAP padding in the RX path correctly.
Add support for QMAP padding to qmimux_rx_fixup() according to the
description of the rmnet driver.
Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull SCSI fix from James Bottomley:
"A single bug fix for hpsa.
The user visible consequences aren't clear, but the ioaccel2 raid
acceleration may misfire on the malformed request assuming the payload
is big enough to require chaining (more than 31 sg entries)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: hpsa: correct ioaccel2 chaining
Pull block fixes from Jens Axboe:
- Remove references to old schedulers for the scheduler switching and
blkio controller documentation (Andreas)
- Kill duplicate check for report zone for null_blk (Chaitanya)
- Two bcache fixes (Coly)
- Ensure that mq-deadline is selected if zoned block device is enabled,
as we need that to support them (Damien)
- Fix io_uring memory leak (Eric)
- ps3vram fallout from LBDAF removal (Geert)
- Redundant blk-mq debugfs debugfs_create return check cleanup (Greg)
- Extend NOPLM quirk for ST1000LM024 drives (Hans)
- Remove error path warning that can now trigger after the queue
removal/addition fixes (Ming)
* tag 'for-linus-20190614' of git://git.kernel.dk/linux-block:
block/ps3vram: Use %llu to format sector_t after LBDAF removal
libata: Extend quirks for the ST1000LM024 drives with NOLPM quirk
bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached
bcache: fix stack corruption by PRECEDING_KEY()
blk-mq: remove WARN_ON(!q->elevator) from blk_mq_sched_free_requests
blkio-controller.txt: Remove references to CFQ
block/switching-sched.txt: Update to blk-mq schedulers
null_blk: remove duplicate check for report zone
blk-mq: no need to check return value of debugfs_create functions
io_uring: fix memory leak of UNIX domain socket inode
block: force select mq-deadline for zoned block devices
Pull i2c fixes from Wolfram Sang:
"I2C has two simple but wanted driver fixes for you"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: pca-platform: Fix GPIO lookup code
i2c: acorn: fix i2c warning
Since commit 177366bf7c the %rbp stopped pointing to %rbp of the
previous stack frame. That broke frame pointer based stack unwinding.
This commit is a partial revert of it.
Note that the location of tail_call_cnt is fixed, since the verifier
enforces MAX_BPF_STACK stack size for programs with tail calls.
Fixes: 177366bf7c ("bpf: change x86 JITed program stack layout")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The 5.1 mount system rework changed the smackfsdef mount option to
smackfsdefault. This fixes the regression by making smackfsdef treated
the same way as smackfsdefault.
Also fix the smack_param_specs[] to have "smack" prefixes on all the
names. This isn't visible to a user unless they either:
(a) Try to mount a filesystem that's converted to the internal mount API
and that implements the ->parse_monolithic() context operation - and
only then if they call security_fs_context_parse_param() rather than
security_sb_eat_lsm_opts().
There are no examples of this upstream yet, but nfs will probably want
to do this for nfs2 or nfs3.
(b) Use fsconfig() to configure the filesystem - in which case
security_fs_context_parse_param() will be called.
This issue is that smack_sb_eat_lsm_opts() checks for the "smack" prefix
on the options, but smack_fs_context_parse_param() does not.
Fixes: c3300aaf95 ("smack: get rid of match_token()")
Fixes: 2febd254ad ("smack: Implement filesystem context security hooks")
Cc: stable@vger.kernel.org
Reported-by: Jose Bollo <jose.bollo@iot.bzh>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
.ndo_xdp_xmit() assumes it is called under RCU. For example virtio_net
uses RCU to detect it has setup the resources for tx. The assumption
accidentally broke when introducing bulk queue in devmap.
Fixes: 5d053f9da4 ("bpf: devmap prepare xdp frames for bulking")
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Toshiaki Makita <toshiaki.makita1@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
dev_map_free() waits for flush_needed bitmap to be empty in order to
ensure all flush operations have completed before freeing its entries.
However the corresponding clear_bit() was called before using the
entries, so the entries could be used after free.
All access to the entries needs to be done before clearing the bit.
It seems commit a5e2da6e97 ("bpf: netdev is never null in
__dev_map_flush") accidentally changed the clear_bit() and memory access
order.
Note that the problem happens only in __dev_map_flush(), not in
dev_map_flush_old(). dev_map_flush_old() is called only after nulling
out the corresponding netdev_map entry, so dev_map_free() never frees
the entry thus no such race happens there.
Fixes: a5e2da6e97 ("bpf: netdev is never null in __dev_map_flush")
Signed-off-by: Toshiaki Makita <toshiaki.makita1@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Selecting HAVE_NOP_MCOUNT enables -mnop-mcount (if gcc supports it)
and sets CC_USING_NOP_MCOUNT. Reuse __is_defined (which is suitable for
testing CC_USING_* defines) to avoid conditional compilation and fix
the following gcc 9 warning on s390:
kernel/trace/ftrace.c:2514:1: warning: ‘ftrace_code_disable’ defined
but not used [-Wunused-function]
Link: http://lkml.kernel.org/r/patch.git-1a82d13f33ac.your-ad-here.call-01559732716-ext-6629@work.hours
Fixes: 2f4df0017b ("tracing: Add -mcount-nop option support")
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Currently the default clock rates for the HDA and HDA2CODEC_2X clocks
are both 19.2MHz. However, the default rates for these clocks should
actually be 51MHz and 48MHz, respectively. The current clock settings
results in a distorted output during audio playback. Correct the default
clock rates for these clocks by specifying them in the clock init table
for Tegra210.
Cc: stable@vger.kernel.org
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The pos and len arguments to the iomap page_prepare callback are not
block aligned, so we need to take that into account when computing the
number of blocks.
Fixes: d0a22a4b03 ("gfs2: Fix iomap write page reclaim deadlock")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Johannes Berg says:
====================
Various fixes, all over:
* a few memory leaks
* fixes for management frame protection security
and A2/A3 confusion (affecting TDLS as well)
* build fix for certificates
* etc.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
While reviewing the DPAA2 work, it has become apparent that we need
better documentation about which members of the phylink link state
structure are valid in the mac_config call. Improve this
documentation.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull arm64 fixes from Will Deacon:
"Here are some arm64 fixes for -rc5.
The only non-trivial change (in terms of the diffstat) is fixing our
SVE ptrace API for big-endian machines, but the majority of this is
actually the addition of much-needed comments and updates to the
documentation to try to avoid this mess biting us again in future.
There are still a couple of small things on the horizon, but nothing
major at this point.
Summary:
- Fix broken SVE ptrace API when running in a big-endian configuration
- Fix performance regression due to off-by-one in TLBI range checking
- Fix build regression when using Clang"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/sve: Fix missing SVE/FPSIMD endianness conversions
arm64: tlbflush: Ensure start/end of address range are aligned to stride
arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS
Merge misc fixes from Andrew Morton:
"16 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/devm_memremap_pages: fix final page put race
PCI/P2PDMA: track pgmap references per resource, not globally
lib/genalloc: introduce chunk owners
PCI/P2PDMA: fix the gen_pool_add_virt() failure path
mm/devm_memremap_pages: introduce devm_memunmap_pages
drivers/base/devres: introduce devm_release_action()
mm/vmscan.c: fix trying to reclaim unevictable LRU page
coredump: fix race condition between collapse_huge_page() and core dumping
mm/mlock.c: change count_mm_mlocked_page_nr return type
mm: mmu_gather: remove __tlb_reset_range() for force flush
fs/ocfs2: fix race in ocfs2_dentry_attach_lock()
mm/vmscan.c: fix recent_rotated history
mm/mlock.c: mlockall error for flag MCL_ONFAULT
scripts/decode_stacktrace.sh: prefix addr2line with $CROSS_COMPILE
mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node
mm: memcontrol: don't batch updates of local VM stats and events
Pull iommu fixes from Joerg Roedel:
- three fixes for Intel VT-d to fix a potential dead-lock, a formatting
fix and a bit setting fix
- one fix for the ARM-SMMU to make it work on some platforms with
sub-optimal SMMU emulation
* tag 'iommu-fixes-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/arm-smmu: Avoid constant zero in TLBI writes
iommu/vt-d: Set the right field for Page Walk Snoop
iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock
iommu: Add missing new line for dma type
Pull GPIO fix from Linus Walleij:
"A single fix for the PCA953x driver affecting some fringe variants of
the chip"
* tag 'gpio-v5.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: hack to fix 24 bit gpio expanders
Check that the NFC_ATTR_TARGET_INDEX attributes (in addition to
NFC_ATTR_DEVICE_INDEX) are provided by the netlink client prior to
accessing them. This prevents potential unhandled NULL pointer dereference
exceptions which can be triggered by malicious user-mode programs,
if they omit one or both of these attributes.
Signed-off-by: Young Xiao <92siuyang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull sound fixes from Takashi Iwai:
"It might feel like deja vu to receive a bulk of changes at rc5, and it
happens again; we've got a collection of fixes for ASoC. Most of fixes
are targeted for the newly merged SOF (Sound Open Firmware) stuff and
the relevant fixes for Intel platforms.
Other than that, there are a few regression fixes for the recent ASoC
core changes and HD-audio quirk, as well as a couple of FireWire fixes
and for other ASoC codecs"
* tag 'sound-5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (54 commits)
Revert "ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops"
ALSA: ice1712: Check correct return value to snd_i2c_sendbytes (EWS/DMX 6Fire)
ALSA: oxfw: allow PCM capture for Stanton SCS.1m
ALSA: firewire-motu: fix destruction of data for isochronous resources
ASoC: Intel: sst: fix kmalloc call with wrong flags
ASoC: core: Fix deadlock in snd_soc_instantiate_card()
SoC: rt274: Fix internal jack assignment in set_jack callback
ALSA: hdac: fix memory release for SST and SOF drivers
ASoC: SOF: Intel: hda: use the defined ppcap functions
ASoC: core: move DAI pre-links initiation to snd_soc_instantiate_card
ASoC: Intel: cht_bsw_rt5672: fix kernel oops with platform_name override
ASoC: Intel: cht_bsw_nau8824: fix kernel oops with platform_name override
ASoC: Intel: bytcht_es8316: fix kernel oops with platform_name override
ASoC: Intel: cht_bsw_max98090: fix kernel oops with platform_name override
ASoC: sun4i-i2s: Add offset to RX channel select
ASoC: sun4i-i2s: Fix sun8i tx channel offset mask
ASoC: max98090: remove 24-bit format support if RJ is 0
ASoC: da7219: Fix build error without CONFIG_I2C
ASoC: SOF: Intel: hda: Fix COMPILE_TEST build error
ASoC: SOF: fix DSP oops definitions in FW ABI
...
Currently, btrfs does not consult seed devices to start readahead. As a
result, if readahead zone is added to the seed devices, btrfs_reada_wait()
indefinitely wait for the reada_ctl to finish.
You can reproduce the hung by modifying btrfs/163 to have larger initial
file size (e.g. xfs_io pwrite 4M instead of current 256K).
Fixes: 7414a03fbf ("btrfs: initial readahead code and prototypes")
Cc: stable@vger.kernel.org # 3.2+: ce7791ffee: Btrfs: fix race between readahead and device replace/removal
Cc: stable@vger.kernel.org # 3.2+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Since commit d52888aa27 ("x86/mm: Move LDT remap out of KASLR region on
5-level paging") kernel doesn't boot with KASAN on 5-level paging machines.
The bug is actually in early_p4d_offset() and introduced by commit
12a8cc7fcf ("x86/kasan: Use the same shadow offset for 4- and 5-level paging")
early_p4d_offset() tries to convert pgd_val(*pgd) value to a physical
address. This doesn't make sense because pgd_val() already contains the
physical address.
It did work prior to commit d52888aa27 because the result of
"__pa_nodebug(pgd_val(*pgd)) & PTE_PFN_MASK" was the same as "pgd_val(*pgd)
& PTE_PFN_MASK". __pa_nodebug() just set some high bits which were masked
out by applying PTE_PFN_MASK.
After the change of the PAGE_OFFSET offset in commit d52888aa27
__pa_nodebug(pgd_val(*pgd)) started to return a value with more high bits
set and PTE_PFN_MASK wasn't enough to mask out all of them. So it returns a
wrong not even canonical address and crashes on the attempt to dereference
it.
Switch back to pgd_val() & PTE_PFN_MASK to cure the issue.
Fixes: 12a8cc7fcf ("x86/kasan: Use the same shadow offset for 4- and 5-level paging")
Reported-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: kasan-dev@googlegroups.com
Cc: stable@vger.kernel.org
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190614143149.2227-1-aryabinin@virtuozzo.com
The bits of Rx MCS Map in VHT capability were enumerated
with index transform - index i -> (i + 1) bit => nss i. BUG!
while it should be - index i -> (i + 1) bit => (i + 1) nss.
The bug was exposed in commit a53b2a0b12 ("iwlwifi: mvm: implement VHT
extended NSS support in rs.c"), where iwlwifi started using the
function.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Fixes: b0aa75f0b1 ("ieee80211: add new VHT capability fields/parsing")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It is not a good idea to try to perform any work (e.g. send an auth
frame) during reconfigure flow.
Prevent this from happening, and at the end of the reconfigure flow
requeue all the works.
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The seen_indices variable is u64 and in other parts of the code we
assume mbssid_index_ie[2] can be up to 45, so we should use the 64-bit
versions of BIT, namely, BIT_ULL().
Reported-by: Dan Carpented <dan.carpenter@oracle.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In multiple SSID cases, it takes time to prepare every AP interface
to be ready in initializing phase. If a sta already knows everything it
needs to join one of the APs and sends authentication to the AP which
is not fully prepared at this point of time, AP's channel context
could be NULL. As a result, warning message occurs.
Even worse, if the AP is under attack via tools such as MDK3 and massive
authentication requests are received in a very short time, console will
be hung due to kernel warning messages.
WARN_ON_ONCE() could be a better way for indicating warning messages
without duplicate messages to flood the console.
Johannes: We still need to address the underlying problem, but we
don't really have a good handle on it yet. Suppress the
worst side-effects for now.
Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
Signed-off-by: Yibo Zhao <yiboz@codeaurora.org>
[johannes: add note, change subject]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When receiving a robust management frame, drop it if we don't have
rx->sta since then we don't have a security association and thus
couldn't possibly validate the frame.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The output of the IC downsizer unit in both dimensions must be <= 1024
before being passed to the IC resizer unit. This was causing corrupted
images when:
input_dim > 1024, and
input_dim / 2 < output_dim < input_dim
Some broken examples were 1920x1080 -> 1024x768 and 1920x1080 ->
1280x1080.
Fixes: 70b9b6b3bc ("gpu: ipu-v3: image-convert: calculate per-tile
resize coefficients")
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
The input bytesperline calculation for packed pixel formats was
incorrect. The min/max clamping values must be multiplied by the
packed bits-per-pixel. This was causing corrupted converted images
when the input format was RGB4 (probably also other input packed
formats).
Fixes: d966e23d61 ("gpu: ipu-v3: image-convert: fix bytesperline
adjustment")
Reported-by: Harsha Manjula Mallikarjun <Harsha.ManjulaMallikarjun@in.bosch.com>
Suggested-by: Harsha Manjula Mallikarjun <Harsha.ManjulaMallikarjun@in.bosch.com>
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
The output width and height alignment values were being used in the
input bytesperline calculation. Fix by separating local vars w_align
and h_align into w_align_in, h_align_in, w_align_out, and h_align_out.
Fixes: d966e23d61 ("gpu: ipu-v3: image-convert: fix bytesperline
adjustment")
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
When starting ICM firmware on Apple systems we need to perform CIO reset
as part of the flow. However, it turns out that the reset register has
changed to another location in Titan Ridge.
Fix this by introducing ->cio_reset() callback with corresponding
implementations for Alpine and Titan Ridge.
Fixes: c4630d6ae6 ("thunderbolt: Start firmware on Titan Ridge Apple systems")
Reported-by: Peter Bowen <pzb@amazon.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
The BB expander at 0x21 i2c bus 1 fails to probe on da850-evm because
the board doesn't set has_full_constraints to true in the regulator
API.
Call regulator_has_full_constraints() at the end of board registration
just like we do in da850-lcdk and da830-evm.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Jason reported that the coarse ktime based time getters advance only once
per second and not once per tick as advertised.
The code reads only the monotonic base time, which advances once per
second. The nanoseconds are accumulated on every tick in xtime_nsec up to
a second and the regular time getters take this nanoseconds offset into
account, but the ktime_get_coarse*() implementation fails to do so.
Add the accumulated xtime_nsec value to the monotonic base time to get the
proper per tick advancing coarse tinme.
Fixes: b9ff604cff ("timekeeping: Add ktime_get_coarse_with_offset")
Reported-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: Sultan Alsawaf <sultan@kerneltoast.com>
Cc: Waiman Long <longman@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1906132136280.1791@nanos.tec.linutronix.de
Logan noticed that devm_memremap_pages_release() kills the percpu_ref
drops all the page references that were acquired at init and then
immediately proceeds to unplug, arch_remove_memory(), the backing pages
for the pagemap. If for some reason device shutdown actually collides
with a busy / elevated-ref-count page then arch_remove_memory() should
be deferred until after that reference is dropped.
As it stands the "wait for last page ref drop" happens *after*
devm_memremap_pages_release() returns, which is obviously too late and
can lead to crashes.
Fix this situation by assigning the responsibility to wait for the
percpu_ref to go idle to devm_memremap_pages() with a new ->cleanup()
callback. Implement the new cleanup callback for all
devm_memremap_pages() users: pmem, devdax, hmm, and p2pdma.
Link: http://lkml.kernel.org/r/155727339156.292046.5432007428235387859.stgit@dwillia2-desk3.amr.corp.intel.com
Fixes: 41e94a8513 ("add devm_memremap_pages")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The p2pdma facility enables a provider to publish a pool of dma
addresses for a consumer to allocate. A genpool is used internally by
p2pdma to collect dma resources, 'chunks', to be handed out to
consumers. Whenever a consumer allocates a resource it needs to pin the
'struct dev_pagemap' instance that backs the chunk selected by
pci_alloc_p2pmem().
Currently that reference is taken globally on the entire provider
device. That sets up a lifetime mismatch whereby the p2pdma core needs
to maintain hacks to make sure the percpu_ref is not released twice.
This lifetime mismatch also stands in the way of a fix to
devm_memremap_pages() whereby devm_memremap_pages_release() must wait for
the percpu_ref ->release() callback to complete before it can proceed to
teardown pages.
So, towards fixing this situation, introduce the ability to store a 'chunk
owner' at gen_pool_add() time, and a facility to retrieve the owner at
gen_pool_{alloc,free}() time. For p2pdma this will be used to store and
recall individual dev_pagemap reference counter instances per-chunk.
Link: http://lkml.kernel.org/r/155727338118.292046.13407378933221579644.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "mm/devm_memremap_pages: Fix page release race", v2.
Logan audited the devm_memremap_pages() shutdown path and noticed that
it was possible to proceed to arch_remove_memory() before all potential
page references have been reaped.
Introduce a new ->cleanup() callback to do the work of waiting for any
straggling page references and then perform the percpu_ref_exit() in
devm_memremap_pages_release() context.
For p2pdma this involves some deeper reworks to reference count
resources on a per-instance basis rather than a per pci-device basis. A
modified genalloc api is introduced to convey a driver-private pointer
through gen_pool_{alloc,free}() interfaces. Also, a
devm_memunmap_pages() api is introduced since p2pdma does not
auto-release resources on a setup failure.
The dax and pmem changes pass the nvdimm unit tests, and the p2pdma
changes should now pass testing with the pci_p2pdma_release() fix.
Jrme, how does this look for HMM?
This patch (of 6):
The devm_add_action() facility allows a resource allocation routine to
add custom devm semantics. One such user is devm_memremap_pages().
There is now a need to manually trigger
devm_memremap_pages_release(). Introduce devm_release_action() so the
release action can be triggered via a new devm_memunmap_pages() api in a
follow-on change.
Link: http://lkml.kernel.org/r/155727336530.292046.2926860263201336366.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There was the below bug report from Wu Fangsuo.
On the CMA allocation path, isolate_migratepages_range() could isolate
unevictable LRU pages and reclaim_clean_page_from_list() can try to
reclaim them if they are clean file-backed pages.
page:ffffffbf02f33b40 count:86 mapcount:84 mapping:ffffffc08fa7a810 index:0x24
flags: 0x19040c(referenced|uptodate|arch_1|mappedtodisk|unevictable|mlocked)
raw: 000000000019040c ffffffc08fa7a810 0000000000000024 0000005600000053
raw: ffffffc009b05b20 ffffffc009b05b20 0000000000000000 ffffffc09bf3ee80
page dumped because: VM_BUG_ON_PAGE(PageLRU(page) || PageUnevictable(page))
page->mem_cgroup:ffffffc09bf3ee80
------------[ cut here ]------------
kernel BUG at /home/build/farmland/adroid9.0/kernel/linux/mm/vmscan.c:1350!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 7125 Comm: syz-executor Tainted: G S 4.14.81 #3
Hardware name: ASR AQUILAC EVB (DT)
task: ffffffc00a54cd00 task.stack: ffffffc009b00000
PC is at shrink_page_list+0x1998/0x3240
LR is at shrink_page_list+0x1998/0x3240
pc : [<ffffff90083a2158>] lr : [<ffffff90083a2158>] pstate: 60400045
sp : ffffffc009b05940
..
shrink_page_list+0x1998/0x3240
reclaim_clean_pages_from_list+0x3c0/0x4f0
alloc_contig_range+0x3bc/0x650
cma_alloc+0x214/0x668
ion_cma_allocate+0x98/0x1d8
ion_alloc+0x200/0x7e0
ion_ioctl+0x18c/0x378
do_vfs_ioctl+0x17c/0x1780
SyS_ioctl+0xac/0xc0
Wu found it's due to commit ad6b67041a ("mm: remove SWAP_MLOCK in
ttu"). Before that, unevictable pages go to cull_mlocked so that we
can't reach the VM_BUG_ON_PAGE line.
To fix the issue, this patch filters out unevictable LRU pages from the
reclaim_clean_pages_from_list in CMA.
Link: http://lkml.kernel.org/r/20190524071114.74202-1-minchan@kernel.org
Fixes: ad6b67041a ("mm: remove SWAP_MLOCK in ttu")
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: Wu Fangsuo <fangsuowu@asrmicro.com>
Debugged-by: Wu Fangsuo <fangsuowu@asrmicro.com>
Tested-by: Wu Fangsuo <fangsuowu@asrmicro.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Pankaj Suryawanshi <pankaj.suryawanshi@einfochips.com>
Cc: <stable@vger.kernel.org> [4.12+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When fixing the race conditions between the coredump and the mmap_sem
holders outside the context of the process, we focused on
mmget_not_zero()/get_task_mm() callers in 04f5866e41 ("coredump: fix
race condition between mmget_not_zero()/get_task_mm() and core
dumping"), but those aren't the only cases where the mmap_sem can be
taken outside of the context of the process as Michal Hocko noticed
while backporting that commit to older -stable kernels.
If mmgrab() is called in the context of the process, but then the
mm_count reference is transferred outside the context of the process,
that can also be a problem if the mmap_sem has to be taken for writing
through that mm_count reference.
khugepaged registration calls mmgrab() in the context of the process,
but the mmap_sem for writing is taken later in the context of the
khugepaged kernel thread.
collapse_huge_page() after taking the mmap_sem for writing doesn't
modify any vma, so it's not obvious that it could cause a problem to the
coredump, but it happens to modify the pmd in a way that breaks an
invariant that pmd_trans_huge_lock() relies upon. collapse_huge_page()
needs the mmap_sem for writing just to block concurrent page faults that
call pmd_trans_huge_lock().
Specifically the invariant that "!pmd_trans_huge()" cannot become a
"pmd_trans_huge()" doesn't hold while collapse_huge_page() runs.
The coredump will call __get_user_pages() without mmap_sem for reading,
which eventually can invoke a lockless page fault which will need a
functional pmd_trans_huge_lock().
So collapse_huge_page() needs to use mmget_still_valid() to check it's
not running concurrently with the coredump... as long as the coredump
can invoke page faults without holding the mmap_sem for reading.
This has "Fixes: khugepaged" to facilitate backporting, but in my view
it's more a bug in the coredump code that will eventually have to be
rewritten to stop invoking page faults without the mmap_sem for reading.
So the long term plan is still to drop all mmget_still_valid().
Link: http://lkml.kernel.org/r/20190607161558.32104-1-aarcange@redhat.com
Fixes: ba76149f47 ("thp: khugepaged")
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Reported-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A few new fields were added to mmu_gather to make TLB flush smarter for
huge page by telling what level of page table is changed.
__tlb_reset_range() is used to reset all these page table state to
unchanged, which is called by TLB flush for parallel mapping changes for
the same range under non-exclusive lock (i.e. read mmap_sem).
Before commit dd2283f260 ("mm: mmap: zap pages with read mmap_sem in
munmap"), the syscalls (e.g. MADV_DONTNEED, MADV_FREE) which may update
PTEs in parallel don't remove page tables. But, the forementioned
commit may do munmap() under read mmap_sem and free page tables. This
may result in program hang on aarch64 reported by Jan Stancek. The
problem could be reproduced by his test program with slightly modified
below.
---8<---
static int map_size = 4096;
static int num_iter = 500;
static long threads_total;
static void *distant_area;
void *map_write_unmap(void *ptr)
{
int *fd = ptr;
unsigned char *map_address;
int i, j = 0;
for (i = 0; i < num_iter; i++) {
map_address = mmap(distant_area, (size_t) map_size, PROT_WRITE | PROT_READ,
MAP_SHARED | MAP_ANONYMOUS, -1, 0);
if (map_address == MAP_FAILED) {
perror("mmap");
exit(1);
}
for (j = 0; j < map_size; j++)
map_address[j] = 'b';
if (munmap(map_address, map_size) == -1) {
perror("munmap");
exit(1);
}
}
return NULL;
}
void *dummy(void *ptr)
{
return NULL;
}
int main(void)
{
pthread_t thid[2];
/* hint for mmap in map_write_unmap() */
distant_area = mmap(0, DISTANT_MMAP_SIZE, PROT_WRITE | PROT_READ,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
munmap(distant_area, (size_t)DISTANT_MMAP_SIZE);
distant_area += DISTANT_MMAP_SIZE / 2;
while (1) {
pthread_create(&thid[0], NULL, map_write_unmap, NULL);
pthread_create(&thid[1], NULL, dummy, NULL);
pthread_join(thid[0], NULL);
pthread_join(thid[1], NULL);
}
}
---8<---
The program may bring in parallel execution like below:
t1 t2
munmap(map_address)
downgrade_write(&mm->mmap_sem);
unmap_region()
tlb_gather_mmu()
inc_tlb_flush_pending(tlb->mm);
free_pgtables()
tlb->freed_tables = 1
tlb->cleared_pmds = 1
pthread_exit()
madvise(thread_stack, 8M, MADV_DONTNEED)
zap_page_range()
tlb_gather_mmu()
inc_tlb_flush_pending(tlb->mm);
tlb_finish_mmu()
if (mm_tlb_flush_nested(tlb->mm))
__tlb_reset_range()
__tlb_reset_range() would reset freed_tables and cleared_* bits, but this
may cause inconsistency for munmap() which do free page tables. Then it
may result in some architectures, e.g. aarch64, may not flush TLB
completely as expected to have stale TLB entries remained.
Use fullmm flush since it yields much better performance on aarch64 and
non-fullmm doesn't yields significant difference on x86.
The original proposed fix came from Jan Stancek who mainly debugged this
issue, I just wrapped up everything together.
Jan's testing results:
v5.2-rc2-24-gbec7550cca10
--------------------------
mean stddev
real 37.382 2.780
user 1.420 0.078
sys 54.658 1.855
v5.2-rc2-24-gbec7550cca10 + "mm: mmu_gather: remove __tlb_reset_range() for force flush"
---------------------------------------------------------------------------------------_
mean stddev
real 37.119 2.105
user 1.548 0.087
sys 55.698 1.357
[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/1558322252-113575-1-git-send-email-yang.shi@linux.alibaba.com
Fixes: dd2283f260 ("mm: mmap: zap pages with read mmap_sem in munmap")
Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com>
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Suggested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Nadav Amit <namit@vmware.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: <stable@vger.kernel.org> [4.20+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ocfs2_dentry_attach_lock() can be executed in parallel threads against the
same dentry. Make that race safe. The race is like this:
thread A thread B
(A1) enter ocfs2_dentry_attach_lock,
seeing dentry->d_fsdata is NULL,
and no alias found by
ocfs2_find_local_alias, so kmalloc
a new ocfs2_dentry_lock structure
to local variable "dl", dl1
.....
(B1) enter ocfs2_dentry_attach_lock,
seeing dentry->d_fsdata is NULL,
and no alias found by
ocfs2_find_local_alias so kmalloc
a new ocfs2_dentry_lock structure
to local variable "dl", dl2.
......
(A2) set dentry->d_fsdata with dl1,
call ocfs2_dentry_lock() and increase
dl1->dl_lockres.l_ro_holders to 1 on
success.
......
(B2) set dentry->d_fsdata with dl2
call ocfs2_dentry_lock() and increase
dl2->dl_lockres.l_ro_holders to 1 on
success.
......
(A3) call ocfs2_dentry_unlock()
and decrease
dl2->dl_lockres.l_ro_holders to 0
on success.
....
(B3) call ocfs2_dentry_unlock(),
decreasing
dl2->dl_lockres.l_ro_holders, but
see it's zero now, panic
Link: http://lkml.kernel.org/r/20190529174636.22364-1-wen.gang.wang@oracle.com
Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Reported-by: Daniel Sobe <daniel.sobe@nxp.com>
Tested-by: Daniel Sobe <daniel.sobe@nxp.com>
Reviewed-by: Changwei Ge <gechangwei@live.cn>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If mlockall() is called with only MCL_ONFAULT as flag, it removes any
previously applied lockings and does nothing else.
This behavior is counter-intuitive and doesn't match the Linux man page.
For mlockall():
EINVAL Unknown flags were specified or MCL_ONFAULT was specified
without either MCL_FUTURE or MCL_CURRENT.
Consequently, return the error EINVAL, if only MCL_ONFAULT is passed.
That way, applications will at least detect that they are calling
mlockall() incorrectly.
Link: http://lkml.kernel.org/r/20190527075333.GA6339@er01809n.ebgroup.elektrobit.com
Fixes: b0f205c2a3 ("mm: mlock: add mlock flags to enable VM_LOCKONFAULT usage")
Signed-off-by: Stefan Potyra <Stefan.Potyra@elektrobit.com>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
At least for ARM64 kernels compiled with the crosstoolchain from
Debian/stretch or with the toolchain from kernel.org the line number is
not decoded correctly by 'decode_stacktrace.sh':
$ echo "[ 136.513051] f1+0x0/0xc [kcrash]" | \
CROSS_COMPILE=/opt/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- \
./scripts/decode_stacktrace.sh /scratch/linux-arm64/vmlinux \
/scratch/linux-arm64 \
/nfs/debian/lib/modules/4.20.0-devel
[ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:68) kcrash
If addr2line from the toolchain is used the decoded line number is correct:
[ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:57) kcrash
Link: http://lkml.kernel.org/r/20190527083425.3763-1-manut@linutronix.de
Signed-off-by: Manuel Traut <manut@linutronix.de>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The kernel test robot noticed a 26% will-it-scale pagefault regression
from commit 42a3003535 ("mm: memcontrol: fix recursive statistics
correctness & scalabilty"). This appears to be caused by bouncing the
additional cachelines from the new hierarchical statistics counters.
We can fix this by getting rid of the batched local counters instead.
Originally, there were *only* group-local counters, and they were fully
maintained per cpu. A reader of a stats file high up in the cgroup tree
would have to walk the entire subtree and collect each level's per-cpu
counters to get the recursive view. This was prohibitively expensive,
and so we switched to per-cpu batched updates of the local counters
during a983b5ebee ("mm: memcontrol: fix excessive complexity in
memory.stat reporting"), reducing the complexity from nr_subgroups *
nr_cpus to nr_subgroups.
With growing machines and cgroup trees, the tree walk itself became too
expensive for monitoring top-level groups, and this is when the culprit
patch added hierarchy counters on each cgroup level. When the per-cpu
batch size would be reached, both the local and the hierarchy counters
would get batch-updated from the per-cpu delta simultaneously.
This makes local and hierarchical counter reads blazingly fast, but it
unfortunately makes the write-side too cache line intense.
Since local counter reads were never a problem - we only centralized
them to accelerate the hierarchy walk - and use of the local counters
are becoming rarer due to replacement with hierarchical views (ongoing
rework in the page reclaim and workingset code), we can make those local
counters unbatched per-cpu counters again.
The scheme will then be as such:
when a memcg statistic changes, the writer will:
- update the local counter (per-cpu)
- update the batch counter (per-cpu). If the batch is full:
- spill the batch into the group's atomic_t
- spill the batch into all ancestors' atomic_ts
- empty out the batch counter (per-cpu)
when a local memcg counter is read, the reader will:
- collect the local counter from all cpus
when a hiearchy memcg counter is read, the reader will:
- read the atomic_t
We might be able to simplify this further and make the recursive
counters unbatched per-cpu counters as well (batch upward propagation,
but leave per-cpu collection to the readers), but that will require a
more in-depth analysis and testing of all the callsites. Deal with the
immediate regression for now.
Link: http://lkml.kernel.org/r/20190521151647.GB2870@cmpxchg.org
Fixes: 42a3003535 ("mm: memcontrol: fix recursive statistics correctness & scalabilty")
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Tested-by: kernel test robot <rong.a.chen@intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit d491f2b752 ("PCI: PM: Avoid possible suspend-to-idle issue")
attempted to avoid a problem with devices whose drivers want them to
stay in D0 over suspend-to-idle and resume, but it did not go as far
as it should with that.
Namely, first of all, the power state of a PCI bridge with a
downstream device in D0 must be D0 (based on the PCI PM spec r1.2,
sec 6, table 6-1, if the bridge is not in D0, there can be no PCI
transactions on its secondary bus), but that is not actively enforced
during system-wide PM transitions, so use the skip_bus_pm flag
introduced by commit d491f2b752 for that.
Second, the configuration of devices left in D0 (whatever the reason)
during suspend-to-idle need not be changed and attempting to put them
into D0 again by force is pointless, so explicitly avoid doing that.
Fixes: d491f2b752 ("PCI: PM: Avoid possible suspend-to-idle issue")
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Naveen N. Rao says:
====================
The first patch updates DIV64 overflow tests to properly detect error
conditions. The second patch fixes powerpc64 JIT to generate the proper
unsigned division instruction for BPF_ALU64.
====================
Acked-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
BPF_ALU64 div/mod operations are currently using signed division, unlike
BPF_ALU32 operations. Fix the same. DIV64 and MOD64 overflow tests pass
with this fix.
Fixes: 156d0e290e ("powerpc/ebpf/jit: Implement JIT compiler for extended BPF")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
If the result of the division is LLONG_MIN, current tests do not detect
the error since the return value is truncated to a 32-bit value and ends
up being 0.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Sync the changes to the flags made in "bpf: simplify definition of
BPF_FIB_LOOKUP related flags" with the BPF UAPI headers.
Doing in a separate commit to ease syncing of github/libbpf.
Signed-off-by: Martynas Pumputis <m@lambda.lt>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Previously, the BPF_FIB_LOOKUP_{DIRECT,OUTPUT} flags in the BPF UAPI
were defined with the help of BIT macro. This had the following issues:
- In order to use any of the flags, a user was required to depend
on <linux/bits.h>.
- No other flag in bpf.h uses the macro, so it seems that an unwritten
convention is to use (1 << (nr)) to define BPF-related flags.
Fixes: 87f5fc7e48 ("bpf: Provide helper to do forwarding lookups in kernel FIB table")
Signed-off-by: Martynas Pumputis <m@lambda.lt>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
We can not depend on the tcon->open_file_lock here since in multiuser mode
we may have the same file/inode open via multiple different tcons.
The current code is race prone and will crash if one user deletes a file
at the same time a different user opens/create the file.
To avoid this we need to have a spinlock attached to the inode and not the tcon.
RHBZ: 1580165
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
RH Bugzilla: 1702264
We need to protect so that the call to smb2_reconnect() in
smb2_reconnect_server() does not end up freeing the session
because it can lead to a use after free and crash.
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Pull timer fixes from Daniel Lezcano:
- Fix missing notrace leading to deadlock on arch_arm_timer (Julien Thierry)
- Fix compilation warning on timer-ti-dm (Philippe Mazenauer)
Pull HID fixes from Jiri Kosina:
- regression fixes (reverts) for module loading changes that turned out
to be incompatible with some userspace, from Benjamin Tissoires
- regression fix for special Logitech unifiying receiver 0xc52f, from
Hans de Goede
- a few device ID additions to logitech driver, from Hans de Goede
- fix for Bluetooth support on 2nd-gen Wacom Intuos Pro, from Jason
Gerecke
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: logitech-dj: Fix 064d:c52f receiver support
Revert "HID: core: Call request_module before doing device_add"
Revert "HID: core: Do not call request_module() in async context"
Revert "HID: Increase maximum report size allowed by hid_field_extract()"
HID: a4tech: fix horizontal scrolling
HID: hyperv: Add a module description line
HID: logitech-hidpp: Add support for the S510 remote control
HID: multitouch: handle faulty Elo touch device
HID: wacom: Sync INTUOSP2_BT touch state after each frame if necessary
HID: wacom: Correct button numbering 2nd-gen Intuos Pro over Bluetooth
HID: wacom: Send BTN_TOUCH in response to INTUOSP2_BT eraser contact
HID: wacom: Don't report anything prior to the tool entering range
HID: wacom: Don't set tool type until we're in range
HID: rmi: Use SET_REPORT request on control endpoint for Acer Switch 3 and 5
HID: logitech-hidpp: add support for the MX5500 keyboard
HID: logitech-dj: add support for the Logitech MX5500's Bluetooth Mini-Receiver
HID: i2c-hid: add iBall Aer3 to descriptor override
ASoC: Fixes for v5.2
There's an awful lot of fixes here, almost all for the newly introduced
SoF DSP drivers (including a few things it turned up in shared code).
This is a large and complex piece of code so it's not surprising that
there have been quite a few issues here, fortunately things seem to have
mostly calmed down now. Otherwise there's just a smattering of small fixes.
Unfortunately, a couple of mistakes were made while implementing
Enlightened VMCS support, in particular, wrong clean fields were
used in copy_enlightened_to_vmcs12():
- exception_bitmap is covered by CONTROL_EXCPN;
- vm_exit_controls/pin_based_vm_exec_control/secondary_vm_exec_control
are covered by CONTROL_GRP1.
Fixes: 945679e301 ("KVM: nVMX: add enlightened VMCS state")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The removal of CONFIG_LBDAF changed the type of sector_t from "unsigned
long" to "u64" aka "unsigned long long" on 64-bit platforms, leading to
a compiler warning regression:
drivers/block/ps3vram.c: In function ‘ps3vram_probe’:
drivers/block/ps3vram.c:770:23: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 4 has type ‘sector_t {aka long long unsigned int}’ [-Wformat=]
Fix this by using "%llu" instead.
Fixes: 72deb455b5 ("block: remove CONFIG_LBDAF")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When people set a writeback percent via sysfs file,
/sys/block/bcache<N>/bcache/writeback_percent
current code directly sets BCACHE_DEV_WB_RUNNING to dc->disk.flags
and schedules kworker dc->writeback_rate_update.
If there is no cache set attached to, the writeback kernel thread is
not running indeed, running dc->writeback_rate_update does not make
sense and may cause NULL pointer deference when reference cache set
pointer inside update_writeback_rate().
This patch checks whether the cache set point (dc->disk.c) is NULL in
sysfs interface handler, and only set BCACHE_DEV_WB_RUNNING and
schedule dc->writeback_rate_update when dc->disk.c is not NULL (it
means the cache device is attached to a cache set).
This problem might be introduced from initial bcache commit, but
commit 3fd47bfe55 ("bcache: stop dc->writeback_rate_update properly")
changes part of the original code piece, so I add 'Fixes: 3fd47bfe55b0'
to indicate from which commit this patch can be applied.
Fixes: 3fd47bfe55 ("bcache: stop dc->writeback_rate_update properly")
Reported-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Recently people report bcache code compiled with gcc9 is broken, one of
the buggy behavior I observe is that two adjacent 4KB I/Os should merge
into one but they don't. Finally it turns out to be a stack corruption
caused by macro PRECEDING_KEY().
See how PRECEDING_KEY() is defined in bset.h,
437 #define PRECEDING_KEY(_k) \
438 ({ \
439 struct bkey *_ret = NULL; \
440 \
441 if (KEY_INODE(_k) || KEY_OFFSET(_k)) { \
442 _ret = &KEY(KEY_INODE(_k), KEY_OFFSET(_k), 0); \
443 \
444 if (!_ret->low) \
445 _ret->high--; \
446 _ret->low--; \
447 } \
448 \
449 _ret; \
450 })
At line 442, _ret points to address of a on-stack variable combined by
KEY(), the life range of this on-stack variable is in line 442-446,
once _ret is returned to bch_btree_insert_key(), the returned address
points to an invalid stack address and this address is overwritten in
the following called bch_btree_iter_init(). Then argument 'search' of
bch_btree_iter_init() points to some address inside stackframe of
bch_btree_iter_init(), exact address depends on how the compiler
allocates stack space. Now the stack is corrupted.
Fixes: 0eacac2203 ("bcache: PRECEDING_KEY()")
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Rolf Fokkens <rolf@rolffokkens.nl>
Reviewed-by: Pierre JUHEN <pierre.juhen@orange.fr>
Tested-by: Shenghui Wang <shhuiw@foxmail.com>
Tested-by: Pierre JUHEN <pierre.juhen@orange.fr>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Nix <nix@esperi.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The in-memory representation of SVE and FPSIMD registers is
different: the FPSIMD V-registers are stored as single 128-bit
host-endian values, whereas SVE registers are stored in an
endianness-invariant byte order.
This means that the two representations differ when running on a
big-endian host. But we blindly copy data from one representation
to another when converting between the two, resulting in the
register contents being unintentionally byteswapped in certain
situations. Currently this can be triggered by the first SVE
instruction after a syscall, for example (though the potential
trigger points may vary in future).
So, fix the conversion functions fpsimd_to_sve(), sve_to_fpsimd()
and sve_sync_from_fpsimd_zeropad() to swab where appropriate.
There is no common swahl128() or swab128() that we could use here.
Maybe it would be worth making this generic, but for now add a
simple local hack.
Since the byte order differences are exposed in ABI, also clarify
the documentation.
Cc: Alex Bennée <alex.bennee@linaro.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Alan Hayward <alan.hayward@arm.com>
Cc: Julien Grall <julien.grall@arm.com>
Fixes: bc0ee47603 ("arm64/sve: Core task context handling")
Fixes: 8cd969d28f ("arm64/sve: Signal handling support")
Fixes: 43d4da2c45 ("arm64/sve: ptrace and ELF coredump support")
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
[will: Fix typos in comments and docs spotted by Julien]
Signed-off-by: Will Deacon <will.deacon@arm.com>
blk_mq_sched_free_requests() may be called in failure path in which
q->elevator may not be setup yet, so remove WARN_ON(!q->elevator) from
blk_mq_sched_free_requests for avoiding the false positive.
This function is actually safe to call in case of !q->elevator because
hctx->sched_tags is checked.
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Yi Zhang <yi.zhang@redhat.com>
Fixes: c3e2219216 ("block: free sched's request pool in blk_cleanup_queue")
Reported-by: syzbot+b9d0d56867048c7bcfde@syzkaller.appspotmail.com
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
CFQ is gone. No need anymore to document its "proportional weight time
based division of disk policy".
Signed-off-by: Andreas Herrmann <aherrmann@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Remove references to CFQ and legacy block layer which are gone.
Update example with what's available under blk-mq.
Signed-off-by: Andreas Herrmann <aherrmann@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This patch removes the check in the null_blk_zoned for report zone
command, where it checks for the dev-,>zoned before executing the report
zone.
The null_zone_report() function is a block_device operation callback
which is initialized in the null_blk_main.c and gets called as a part
of blkdev for report zone IOCTL (BLKREPORTZONE).
blkdev_ioctl()
blkdev_report_zones_ioctl()
blkdev_report_zones()
blk_report_zones()
disk->fops->report_zones()
nullb_zone_report();
The null_zone_report() will never get executed on the non-zoned block
device, in the non zoned block device blk_queue_is_zoned() will always
be false which is first check the blkdev_report_zones_ioctl()
before actual low level driver report zone callback is executed.
Here is the detailed scenario:-
1. modprobe null_blk
null_init
null_alloc_dev
dev->zoned = 0
null_add_dev
dev->zoned == 0
so we don't set the q->limits.zoned = BLK_ZONED_HR
2. blkzone report /dev/nullb0
blkdev_ioctl()
blkdev_report_zones_ioctl()
blk_queue_is_zoned()
blk_queue_is_zoned
q->limits.zoned == 0
return false
if (!blk_queue_is_zoned(q)) <--- true
return -ENOTTY;
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When calling debugfs functions, there is no need to ever check the
return value. The function can work or not, but the code logic should
never do something different based on this.
When all of these checks are cleaned up, lots of the functions used in
the blk-mq-debugfs code can now return void, as no need to check the
return value of them either.
Overall, this ends up cleaning up the code and making it smaller, always
a nice win.
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Opening and closing an io_uring instance leaks a UNIX domain socket
inode. This is because the ->file of the io_uring instance's internal
UNIX domain socket is set to point to the io_uring file, but then
sock_release() sees the non-NULL ->file and assumes the inode reference
is held by the file so doesn't call iput(). That's not the case here,
since the reference is still meant to be held by the socket; the actual
inode of the io_uring file is different.
Fix this leak by NULL-ing out ->file before releasing the socket.
Reported-by: syzbot+111cb28d9f583693aefa@syzkaller.appspotmail.com
Fixes: 2b188cc1bb ("Add io_uring IO interface")
Cc: <stable@vger.kernel.org> # v5.1+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In most use cases of zoned block devices (aka SMR disks), the
mq-deadline scheduler is mandatory as it implements sequential write
command processing guarantees with zone write locking. So make sure that
this scheduler is always enabled if CONFIG_BLK_DEV_ZONED is selected.
Tested-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
There is a race between the binder driver cleaning
up a completed transaction via binder_free_transaction()
and a user calling binder_ioctl(BC_FREE_BUFFER) to
release a buffer. It doesn't matter which is first but
they need to be protected against running concurrently
which can result in a UAF.
Signed-off-by: Todd Kjos <tkjos@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This merges a fix for a bug in our context id handling on 64-bit hash
CPUs.
The fix was written against v5.1 to ease backporting to stable
releases. Here we are merging it up to a v5.2-rc2 base, which involves
a bit of manual resolution.
It also adds a test case for the bug.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Pull selinux fixes from Paul Moore:
"Three patches for v5.2.
One fixes a problem where we weren't correctly logging raw SELinux
labels, the other two fix problems where we weren't properly checking
calls to kmemdup()"
* tag 'selinux-pr-20190612' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: fix a missing-check bug in selinux_sb_eat_lsm_opts()
selinux: fix a missing-check bug in selinux_add_mnt_opt( )
selinux: log raw contexts as untrusted strings
This tests that when a process with a mapping above 512TB forks we
correctly separate the parent and child address spaces. This exercises
the bug in the context id handling fixed in the previous commit.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The "block" variable can be set by the user through debugfs, so it can
be quite large which leads to shift wrapping here. This means we report
a "block" as supported when it's not, and that leads to array overflows
later on.
This bug is not really a security issue in real life, because debugfs is
generally root only.
Fixes: 36ea1bd2d0 ("drm/amdgpu: add debugfs ctrl node")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
They are capable of using intertouch and it works well with
psmouse.synaptics_intertouch=1, so add them to the list.
Without it, scrolling and gestures are jumpy, three-finger pinch gesture
doesn't work and three- or four-finger swipes sometimes get stuck.
Signed-off-by: Alexander Mikhaylenko <exalm7659@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Maxime Chevallier says:
====================
net: mvpp2: prs: Fixes for VID filtering
This series fixes some issues with VID filtering offload, mainly due to
the wrong ranges being used in the TCAM header parser.
The first patch fixes a bug where removing a VLAN from a port's
whitelist would also remove it from other port's, if they are on the
same PPv2 instance.
The second patch makes so that we don't invalidate the wrong TCAM
entries when clearing the whole whitelist.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When removing all VID filters, the mvpp2_prs_vid_entry_remove would be
called with the TCAM id incorrectly used as a VID, causing the wrong
TCAM entries to be invalidated.
Fix this by directly invalidating entries in the VID range.
Fixes: 56beda3db6 ("net: mvpp2: Add hardware offloading for VLAN filtering")
Suggested-by: Yuri Chipchev <yuric@marvell.com>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
VID filtering is implemented in the Header Parser, with one range of 11
vids being assigned for each no-loopback port.
Make sure we use the per-port range when looking for existing entries in
the Parser.
Since we used a global range instead of a per-port one, this causes VIDs
to be removed from the whitelist from all ports of the same PPv2
instance.
Fixes: 56beda3db6 ("net: mvpp2: Add hardware offloading for VLAN filtering")
Suggested-by: Yuri Chipchev <yuric@marvell.com>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel says:
====================
mlxsw: Various fixes
This patchset contains various fixes for mlxsw.
Patch #1 fixes an hash polarization problem when a nexthop device is a
LAG device. This is caused by the fact that the same seed is used for
the LAG and ECMP hash functions.
Patch #2 fixes an issue in which the driver fails to refresh a nexthop
neighbour after it becomes dead. This prevents the nexthop from ever
being written to the adjacency table and used to forward traffic. Patch
Patch #4 fixes a wrong extraction of TOS value in flower offload code.
Patch #5 is a test case.
Patch #6 works around a buffer issue in Spectrum-2 by reducing the
default sizes of the shared buffer pools.
Patch #7 prevents prio-tagged packets from entering the switch when PVID
is removed from the bridge port.
Please consider patches #2, #4 and #6 for 5.1.y
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When PVID is removed from a bridge port, the Linux bridge drops both
untagged and prio-tagged packets. Align mlxsw with this behavior.
Fixes: 148f472da5 ("mlxsw: reg: Add the Switch Port Acceptable Frame Types register")
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Due to an issue on Spectrum-2, in front-panel ports split four ways, 2 out
of 32 port buffers cannot be used. To work around this, the next FW release
will mark them as unused, and will report correspondingly lower total
shared buffer size. mlxsw will pick up the new value through a query to
cap_total_buffer_size resource. However the initial size for shared buffer
pool 0 is hard-coded and therefore needs to be updated.
Thus reduce the pool size by 2.7 MiB (which corresponds to 2/32 of the
total size of 42 MiB), and round down to the whole number of cells.
Fixes: fe099bf682 ("mlxsw: spectrum_buffers: Add Spectrum-2 shared buffer configuration")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Test that IPv4 and IPv6 nexthops are correctly marked with offload
indication in response to neighbour events.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver tries to periodically refresh neighbours that are used to
reach nexthops. This is done by periodically calling neigh_event_send().
However, if the neighbour becomes dead, there is nothing we can do to
return it to a connected state and the above function call is basically
a NOP.
This results in the nexthop never being written to the device's
adjacency table and therefore never used to forward packets.
Fix this by dropping our reference from the dead neighbour and
associating the nexthop with a new neigbhour which we will try to
refresh.
Fixes: a7ff87acd9 ("mlxsw: spectrum_router: Implement next-hop routing")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Alex Veber <alexve@mellanox.com>
Tested-by: Alex Veber <alexve@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The same hash function and seed are used for both ECMP and LAG hash.
Therefore, when a LAG device is used as a nexthop device as part of an
ECMP group, hash polarization can occur and all the traffic will be
hashed to a single LAG slave.
Fix this by using a different seed for the LAG hash.
Fixes: fa73989f26 ("mlxsw: spectrum: Use a stable ECMP/LAG seed")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Alex Veber <alexve@mellanox.com>
Tested-by: Alex Veber <alexve@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tls_sw_do_sendpage needs to return the total number of bytes sent
regardless of how many sk_msgs are allocated. Unfortunately, copied
(the value we return up the stack) is zero'd before each new sk_msg
is allocated so we only return the copied size of the last sk_msg used.
The caller (splice, etc.) of sendpage will then believe only part
of its data was sent and send the missing chunks again. However,
because the data actually was sent the receiver will get multiple
copies of the same data.
To reproduce this do multiple sendfile calls with a length close to
the max record size. This will in turn call splice/sendpage, sendpage
may use multiple sk_msg in this case and then returns the incorrect
number of bytes. This will cause splice to resend creating duplicate
data on the receiver. Andre created a C program that can easily
generate this case so we will push a similar selftest for this to
bpf-next shortly.
The fix is to _not_ zero the copied field so that the total sent
bytes is returned.
Reported-by: Steinar H. Gunderson <steinar+kernel@gunderson.no>
Reported-by: Andre Tomt <andre@tomt.net>
Tested-by: Andre Tomt <andre@tomt.net>
Fixes: d829e9c411 ("tls: convert to generic sk_msg interface")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Get the ingress interface and increment ICMP counters based on that
instead of skb->dev when the the dev is a VRF device.
This is a follow up on the following message:
https://www.spinics.net/lists/netdev/msg560268.html
v2: Avoid changing skb->dev since it has unintended effect for local
delivery (David Ahern).
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the case that a process is constrained by taskset(1) (i.e.
sched_setaffinity(2)) to a subset of available cpus, and all of those are
subsequently offlined, the scheduler will set tsk->cpus_allowed to
the current value of task_cs(tsk)->effective_cpus.
This is done via a call to do_set_cpus_allowed() in the context of
cpuset_cpus_allowed_fallback() made by the scheduler when this case is
detected. This is the only call made to cpuset_cpus_allowed_fallback()
in the latest mainline kernel.
However, this is not sane behavior.
I will demonstrate this on a system running the latest upstream kernel
with the following initial configuration:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,fffffff
Cpus_allowed_list: 0-63
(Where cpus 32-63 are provided via smt.)
If we limit our current shell process to cpu2 only and then offline it
and reonline it:
# taskset -p 4 $$
pid 2272's current affinity mask: ffffffffffffffff
pid 2272's new affinity mask: 4
# echo off > /sys/devices/system/cpu/cpu2/online
# dmesg | tail -3
[ 2195.866089] process 2272 (bash) no longer affine to cpu2
[ 2195.872700] IRQ 114: no longer affine to CPU2
[ 2195.879128] smpboot: CPU 2 is now offline
# echo on > /sys/devices/system/cpu/cpu2/online
# dmesg | tail -1
[ 2617.043572] smpboot: Booting Node 0 Processor 2 APIC 0x4
We see that our current process now has an affinity mask containing
every cpu available on the system _except_ the one we originally
constrained it to:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,fffffffb
Cpus_allowed_list: 0-1,3-63
This is not sane behavior, as the scheduler can now not only place the
process on previously forbidden cpus, it can't even schedule it on
the cpu it was originally constrained to!
Other cases result in even more exotic affinity masks. Take for instance
a process with an affinity mask containing only cpus provided by smt at
the moment that smt is toggled, in a configuration such as the following:
# taskset -p f000000000 $$
# grep -i cpu /proc/$$/status
Cpus_allowed: 000000f0,00000000
Cpus_allowed_list: 36-39
A double toggle of smt results in the following behavior:
# echo off > /sys/devices/system/cpu/smt/control
# echo on > /sys/devices/system/cpu/smt/control
# grep -i cpus /proc/$$/status
Cpus_allowed: ffffff00,ffffffff
Cpus_allowed_list: 0-31,40-63
This is even less sane than the previous case, as the new affinity mask
excludes all smt-provided cpus with ids less than those that were
previously in the affinity mask, as well as those that were actually in
the mask.
With this patch applied, both of these cases end in the following state:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,ffffffff
Cpus_allowed_list: 0-63
The original policy is discarded. Though not ideal, it is the simplest way
to restore sanity to this fallback case without reinventing the cpuset
wheel that rolls down the kernel just fine in cgroup v2. A user who wishes
for the previous affinity mask to be restored in this fallback case can use
that mechanism instead.
This patch modifies scheduler behavior by instead resetting the mask to
task_cs(tsk)->cpus_allowed by default, and cpu_possible mask in legacy
mode. I tested the cases above on both modes.
Note that the scheduler uses this fallback mechanism if and only if
_every_ other valid avenue has been traveled, and it is the last resort
before calling BUG().
Suggested-by: Waiman Long <longman@redhat.com>
Suggested-by: Phil Auld <pauld@redhat.com>
Signed-off-by: Joel Savitz <jsavitz@redhat.com>
Acked-by: Phil Auld <pauld@redhat.com>
Acked-by: Waiman Long <longman@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Using ethtool, users can specify a classification action matching on the
full vlan tag, which includes the DEI bit (also previously called CFI).
However, when converting the ethool_flow_spec to a flow_rule, we use
dissector keys to represent the matching patterns.
Since the vlan dissector key doesn't include the DEI bit, this
information was silently discarded when translating the ethtool
flow spec in to a flow_rule.
This commit adds the DEI bit into the vlan dissector key, and allows
propagating the information to the driver when parsing the ethtool flow
spec.
Fixes: eca4205f9e ("ethtool: add ethtool_rx_flow_spec to flow_rule structure translator")
Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Randy reported that selecting MPLS_ROUTING without PROC_FS breaks
the build, because since commit c1a9d65954 ("mpls: fix af_mpls
dependencies"), MPLS_ROUTING selects PROC_SYSCTL, but Kconfig's select
doesn't recursively handle dependencies.
Change the select into a dependency.
Fixes: c1a9d65954 ("mpls: fix af_mpls dependencies")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In selinux_sb_eat_lsm_opts(), 'arg' is allocated by kmemdup_nul(). It
returns NULL when fails. So 'arg' should be checked. And 'mnt_opts'
should be freed when error.
Signed-off-by: Gen Zhang <blackgod016574@gmail.com>
Fixes: 99dbbb593f ("selinux: rewrite selinux_sb_eat_lsm_opts()")
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Pull media fixes from Mauro Carvalho Chehab:
- a debug warning for satellite tuning at dvb core was producing too
much noise
- a regression at hfi_parser on Venus driver
* tag 'media/v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: venus: hfi_parser: fix a regression in parser
media: dvb: warning about dvb frequency limits produces too much noise
In selinux_add_mnt_opt(), 'val' is allocated by kmemdup_nul(). It returns
NULL when fails. So 'val' should be checked. And 'mnt_opts' should be
freed when error.
Signed-off-by: Gen Zhang <blackgod016574@gmail.com>
Fixes: 757cbe597f ("LSM: new method: ->sb_add_mnt_opt()")
Cc: <stable@vger.kernel.org>
[PM: fixed some indenting problems]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Since commit 3d65b6bbc0 ("arm64: tlbi: Set MAX_TLBI_OPS to
PTRS_PER_PTE"), we resort to per-ASID invalidation when attempting to
perform more than PTRS_PER_PTE invalidation instructions in a single
call to __flush_tlb_range(). Whilst this is beneficial, the mmu_gather
code does not ensure that the end address of the range is rounded-up
to the stride when freeing intermediate page tables in pXX_free_tlb(),
which defeats our range checking.
Align the bounds passed into __flush_tlb_range().
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reported-by: Hanjun Guo <guohanjun@huawei.com>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
kvm_device->destroy() seems to be supposed to free its kvm_device
struct, but vgic_its_destroy() is not currently doing this,
resulting in a memory leak, resulting in kmemleak reports such as
the following:
unreferenced object 0xffff800aeddfe280 (size 128):
comm "qemu-system-aar", pid 13799, jiffies 4299827317 (age 1569.844s)
[...]
backtrace:
[<00000000a08b80e2>] kmem_cache_alloc+0x178/0x208
[<00000000dcad2bd3>] kvm_vm_ioctl+0x350/0xbc0
Fix it.
Cc: Andre Przywara <andre.przywara@arm.com>
Fixes: 1085fdc68c ("KVM: arm64: vgic-its: Introduce new KVM ITS device")
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Since commit d26c25a9d1 ("arm64: KVM: Tighten guest core register
access from userspace"), KVM_{GET,SET}_ONE_REG rejects register IDs
that do not correspond to a single underlying architectural register.
KVM_GET_REG_LIST was not changed to match however: instead, it
simply yields a list of 32-bit register IDs that together cover the
whole kvm_regs struct. This means that if userspace tries to use
the resulting list of IDs directly to drive calls to KVM_*_ONE_REG,
some of those calls will now fail.
This was not the intention. Instead, iterating KVM_*_ONE_REG over
the list of IDs returned by KVM_GET_REG_LIST should be guaranteed
to work.
This patch fixes the problem by splitting validate_core_offset()
into a backend core_reg_size_from_offset() which does all of the
work except for checking that the size field in the register ID
matches, and kvm_arm_copy_reg_indices() and num_core_regs() are
converted to use this to enumerate the valid offsets.
kvm_arm_copy_reg_indices() now also sets the register ID size field
appropriately based on the value returned, so the register ID
supplied to userspace is fully qualified for use with the register
access ioctls.
Cc: stable@vger.kernel.org
Fixes: d26c25a9d1 ("arm64: KVM: Tighten guest core register access from userspace")
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
We should not call 'ndo_bpf()' or 'dev_put()' with NULL argument.
Fixes: c9b47cc1fa ("xsk: fix bug when trying to use both copy and zero-copy on one queue id")
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The cloned sk should not carry its parent-listener's sk_bpf_storage.
This patch fixes it by setting it back to NULL.
Fixes: 6ac99e8f23 ("bpf: Introduce bpf sk local storage")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
If a task is removing the block group that currently has the highest start
offset amongst all existing block groups, there is a short time window
where it races with a concurrent block group allocation, resulting in a
transaction abort with an error code of EEXIST.
The following diagram explains the race in detail:
Task A Task B
btrfs_remove_block_group(bg offset X)
remove_extent_mapping(em offset X)
-> removes extent map X from the
tree of extent maps
(fs_info->mapping_tree), so the
next call to find_next_chunk()
will return offset X
btrfs_alloc_chunk()
find_next_chunk()
--> returns offset X
__btrfs_alloc_chunk(offset X)
btrfs_make_block_group()
btrfs_create_block_group_cache()
--> creates btrfs_block_group_cache
object with a key corresponding
to the block group item in the
extent, the key is:
(offset X, BTRFS_BLOCK_GROUP_ITEM_KEY, 1G)
--> adds the btrfs_block_group_cache object
to the list new_bgs of the transaction
handle
btrfs_end_transaction(trans handle)
__btrfs_end_transaction()
btrfs_create_pending_block_groups()
--> sees the new btrfs_block_group_cache
in the new_bgs list of the transaction
handle
--> its call to btrfs_insert_item() fails
with -EEXIST when attempting to insert
the block group item key
(offset X, BTRFS_BLOCK_GROUP_ITEM_KEY, 1G)
because task A has not removed that key yet
--> aborts the running transaction with
error -EEXIST
btrfs_del_item()
-> removes the block group's key from
the extent tree, key is
(offset X, BTRFS_BLOCK_GROUP_ITEM_KEY, 1G)
A sample transaction abort trace:
[78912.403537] ------------[ cut here ]------------
[78912.403811] BTRFS: Transaction aborted (error -17)
[78912.404082] WARNING: CPU: 2 PID: 20465 at fs/btrfs/extent-tree.c:10551 btrfs_create_pending_block_groups+0x196/0x250 [btrfs]
(...)
[78912.405642] CPU: 2 PID: 20465 Comm: btrfs Tainted: G W 5.0.0-btrfs-next-46 #1
[78912.405941] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.11.2-0-gf9626ccb91-prebuilt.qemu-project.org 04/01/2014
[78912.406586] RIP: 0010:btrfs_create_pending_block_groups+0x196/0x250 [btrfs]
(...)
[78912.407636] RSP: 0018:ffff9d3d4b7e3b08 EFLAGS: 00010282
[78912.407997] RAX: 0000000000000000 RBX: ffff90959a3796f0 RCX: 0000000000000006
[78912.408369] RDX: 0000000000000007 RSI: 0000000000000001 RDI: ffff909636b16860
[78912.408746] RBP: ffff909626758a58 R08: 0000000000000000 R09: 0000000000000000
[78912.409144] R10: ffff9095ff462400 R11: 0000000000000000 R12: ffff90959a379588
[78912.409521] R13: ffff909626758ab0 R14: ffff9095036c0000 R15: ffff9095299e1158
[78912.409899] FS: 00007f387f16f700(0000) GS:ffff909636b00000(0000) knlGS:0000000000000000
[78912.410285] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[78912.410673] CR2: 00007f429fc87cbc CR3: 000000014440a004 CR4: 00000000003606e0
[78912.411095] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[78912.411496] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[78912.411898] Call Trace:
[78912.412318] __btrfs_end_transaction+0x5b/0x1c0 [btrfs]
[78912.412746] btrfs_inc_block_group_ro+0xcf/0x160 [btrfs]
[78912.413179] scrub_enumerate_chunks+0x188/0x5b0 [btrfs]
[78912.413622] ? __mutex_unlock_slowpath+0x100/0x2a0
[78912.414078] btrfs_scrub_dev+0x2ef/0x720 [btrfs]
[78912.414535] ? __sb_start_write+0xd4/0x1c0
[78912.414963] ? mnt_want_write_file+0x24/0x50
[78912.415403] btrfs_ioctl+0x17fb/0x3120 [btrfs]
[78912.415832] ? lock_acquire+0xa6/0x190
[78912.416256] ? do_vfs_ioctl+0xa2/0x6f0
[78912.416685] ? btrfs_ioctl_get_supported_features+0x30/0x30 [btrfs]
[78912.417116] do_vfs_ioctl+0xa2/0x6f0
[78912.417534] ? __fget+0x113/0x200
[78912.417954] ksys_ioctl+0x70/0x80
[78912.418369] __x64_sys_ioctl+0x16/0x20
[78912.418812] do_syscall_64+0x60/0x1b0
[78912.419231] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[78912.419644] RIP: 0033:0x7f3880252dd7
(...)
[78912.420957] RSP: 002b:00007f387f16ed68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[78912.421426] RAX: ffffffffffffffda RBX: 000055f5becc1df0 RCX: 00007f3880252dd7
[78912.421889] RDX: 000055f5becc1df0 RSI: 00000000c400941b RDI: 0000000000000003
[78912.422354] RBP: 0000000000000000 R08: 00007f387f16f700 R09: 0000000000000000
[78912.422790] R10: 00007f387f16f700 R11: 0000000000000246 R12: 0000000000000000
[78912.423202] R13: 00007ffda49c266f R14: 0000000000000000 R15: 00007f388145e040
[78912.425505] ---[ end trace eb9bfe7c426fc4d3 ]---
Fix this by calling remove_extent_mapping(), at btrfs_remove_block_group(),
only at the very end, after removing the block group item key from the
extent tree (and removing the free space tree entry if we are using the
free space tree feature).
Fixes: 04216820fe ("Btrfs: fix race between fs trimming and block group remove/allocation")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
With v5.2-rc1, The ftrace functions_graph tracer locks up whenever it is
enabled on arm64.
Since commit 0ea415390c ("clocksource/arm_arch_timer: Use
arch_timer_read_counter to access stable counters") a function pointer
is consistently used to read the counter instead of potentially
referencing an inlinable function.
The graph tracers relies on accessing the timer counters to compute the
time spent in functions which causes the lockup when attempting to trace
these code paths.
Annotate the arm arch timer counter accessors as notrace.
Fixes: 0ea415390c ("clocksource/arm_arch_timer: Use
arch_timer_read_counter to access stable counters")
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
When using the Hash Page Table (HPT) MMU, userspace memory mappings
are managed at two levels. Firstly in the Linux page tables, much like
other architectures, and secondly in the SLB (Segment Lookaside
Buffer) and HPT. It's the SLB and HPT that are actually used by the
hardware to do translations.
As part of the series adding support for 4PB user virtual address
space using the hash MMU, we added support for allocating multiple
"context ids" per process, one for each 512TB chunk of address space.
These are tracked in an array called extended_id in the mm_context_t
of a process that has done a mapping above 512TB.
If such a process forks (ie. clone(2) without CLONE_VM set) it's mm is
copied, including the mm_context_t, and then init_new_context() is
called to reinitialise parts of the mm_context_t as appropriate to
separate the address spaces of the two processes.
The key step in ensuring the two processes have separate address
spaces is to allocate a new context id for the process, this is done
at the beginning of hash__init_new_context(). If we didn't allocate a
new context id then the two processes would share mappings as far as
the SLB and HPT are concerned, even though their Linux page tables
would be separate.
For mappings above 512TB, which use the extended_id array, we
neglected to allocate new context ids on fork, meaning the parent and
child use the same ids and therefore share those mappings even though
they're supposed to be separate. This can lead to the parent seeing
writes done by the child, which is essentially memory corruption.
There is an additional exposure which is that if the child process
exits, all its context ids are freed, including the context ids that
are still in use by the parent for mappings above 512TB. One or more
of those ids can then be reallocated to a third process, that process
can then read/write to the parent's mappings above 512TB. Additionally
if the freed id is used for the third process's primary context id,
then the parent is able to read/write to the third process's mappings
*below* 512TB.
All of these are fundamental failures to enforce separation between
processes. The only mitigating factor is that the bug only occurs if a
process creates mappings above 512TB, and most applications still do
not create such mappings.
Only machines using the hash page table MMU are affected, eg. PowerPC
970 (G5), PA6T, Power5/6/7/8/9. By default Power9 bare metal machines
(powernv) use the Radix MMU and are not affected, unless the machine
has been explicitly booted in HPT mode (using disable_radix on the
kernel command line). KVM guests on Power9 may be affected if the host
or guest is configured to use the HPT MMU. LPARs under PowerVM on
Power9 are affected as they always use the HPT MMU. Kernels built with
PAGE_SIZE=4K are not affected.
The fix is relatively simple, we need to reallocate context ids for
all extended mappings on fork.
Fixes: f384796c40 ("powerpc/mm: Add support for handling > 512TB address in SLB miss")
Cc: stable@vger.kernel.org # v4.17+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The devm_gpiod_request_gpiod() call will add "-gpios" to
any passed connection ID before looking it up.
I do not think the reset GPIO on this platform is named
"reset-gpios-gpios" but rather "reset-gpios" in the device
tree, so fix this up so that we get a proper reset GPIO
handle.
Also drop the inclusion of the legacy GPIO header.
Fixes: 0e8ce93bdc ("i2c: pca-platform: add devicetree awareness")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
When a device is authorized from userspace by writing to authorized
attribute we first take the domain lock and then runtime resume the
device in question. There are two issues with this.
First is that the device connected notifications are blocked during this
time which means we get them only after the authorization operation is
complete. Because of this the authorization needed flag from the
firmware notification is not reflecting the real authorization status
anymore. So what happens is that the "authorized" keeps returning 0 even
if the device was already authorized properly.
Second issue is that each time the controller is runtime resumed the
connection_id field of device connected notification may be different
than in the previous resume. We need to use the latest connection_id
otherwise the firmware rejects the authorization command.
Fix these by moving runtime resume operations to happen before the
domain lock is taken, and waiting for the updated device connected
notification from the firmware before we allow runtime resume of a
device to complete.
While there add missing locking to tb_switch_nvm_read().
Fixes: 09f11b6c99 ("thunderbolt: Take domain lock in switch sysfs attribute callbacks")
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
We've moved the override and firmware EDID (simply "override EDID" from
now on) handling to the low level drm_do_get_edid() function in order to
transparently use the override throughout the stack. The idea is that
you get the override EDID via the ->get_modes() hook.
Unfortunately, there are scenarios where the DDC probe in drm_get_edid()
called via ->get_modes() fails, although the preceding ->detect()
succeeds.
In the case reported by Paul Wise, the ->detect() hook,
intel_crt_detect(), relies on hotplug detect, bypassing the DDC. In the
case reported by Ilpo Järvinen, there is no ->detect() hook, which is
interpreted as connected. The subsequent DDC probe reached via
->get_modes() fails, and we don't even look at the override EDID,
resulting in no modes being added.
Because drm_get_edid() is used via ->detect() all over the place, we
can't trivially remove the DDC probe, as it leads to override EDID
effectively meaning connector forcing. The goal is that connector
forcing and override EDID remain orthogonal.
Generally, the underlying problem here is the conflation of ->detect()
and ->get_modes() via drm_get_edid(). The former should just detect, and
the latter should just get the modes, typically via reading the EDID. As
long as drm_get_edid() is used in ->detect(), it needs to retain the DDC
probe. Or such users need to have a separate DDC probe step first.
The EDID caching between ->detect() and ->get_modes() done by some
drivers is a further complication that prevents us from making
drm_do_get_edid() adapt to the two cases.
Work around the regression by falling back to a separate attempt at
getting the override EDID at drm_helper_probe_single_connector_modes()
level. With a working DDC and override EDID, it'll never be called; the
override EDID will come via ->get_modes(). There will still be a failing
DDC probe attempt in the cases that require the fallback.
v2:
- Call drm_connector_update_edid_property (Paul)
- Update commit message about EDID caching (Daniel)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107583
Reported-by: Paul Wise <pabs3@bonedaddy.net>
Cc: Paul Wise <pabs3@bonedaddy.net>
References: http://mid.mail-archive.com/alpine.DEB.2.20.1905262211270.24390@whs-18.cs.helsinki.fi
Reported-by: Ilpo Järvinen <ilpo.jarvinen@cs.helsinki.fi>
Cc: Ilpo Järvinen <ilpo.jarvinen@cs.helsinki.fi>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
References: 15f080f08d ("drm/edid: respect connector force for drm_get_edid ddc probe")
Fixes: 53fd40a90f ("drm: handle override and firmware EDID at drm_do_get_edid() level")
Cc: <stable@vger.kernel.org> # v4.15+ 56a2b7f2a3 drm/edid: abstract override/firmware EDID retrieval
Cc: <stable@vger.kernel.org> # v4.15+
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Harish Chegondi <harish.chegondi@intel.com>
Tested-by: Paul Wise <pabs3@bonedaddy.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190610093054.28445-1-jani.nikula@intel.com
The Acorn i2c driver (for RiscPC) triggers the "i2c adapter has no name"
warning in the I2C core driver, resulting in the RTC being inaccessible.
Fix this.
Fixes: 2236baa75f ("i2c: Sanity checks on adapter registration")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
This is a GCC only option, which warns about ABI changes within GCC, so
unconditionally adding it breaks Clang with tons of:
warning: unknown warning option '-Wno-psabi' [-Wunknown-warning-option]
and link time failures:
ld.lld: error: undefined symbol: __efistub___stack_chk_guard
>>> referenced by arm-stub.c:73
(/home/nathan/cbl/linux/drivers/firmware/efi/libstub/arm-stub.c:73)
>>> arm-stub.stub.o:(__efistub_install_memreserve_table)
in archive ./drivers/firmware/efi/libstub/lib.a
These failures come from the lack of -fno-stack-protector, which is
added via cc-option in drivers/firmware/efi/libstub/Makefile. When an
unknown flag is added to KBUILD_CFLAGS, clang will noisily warn that it
is ignoring the option like above, unlike gcc, who will just error.
$ echo "int main() { return 0; }" > tmp.c
$ clang -Wno-psabi tmp.c; echo $?
warning: unknown warning option '-Wno-psabi' [-Wunknown-warning-option]
1 warning generated.
0
$ gcc -Wsometimes-uninitialized tmp.c; echo $?
gcc: error: unrecognized command line option
‘-Wsometimes-uninitialized’; did you mean ‘-Wmaybe-uninitialized’?
1
For cc-option to work properly with clang and behave like gcc, -Werror
is needed, which was done in commit c3f0d0bc5b ("kbuild, LLVMLinux:
Add -Werror to cc-option to support clang").
$ clang -Werror -Wno-psabi tmp.c; echo $?
error: unknown warning option '-Wno-psabi'
[-Werror,-Wunknown-warning-option]
1
As a consequence of this, when an unknown flag is unconditionally added
to KBUILD_CFLAGS, it will cause cc-option to always fail and those flags
will never get added:
$ clang -Werror -Wno-psabi -fno-stack-protector tmp.c; echo $?
error: unknown warning option '-Wno-psabi'
[-Werror,-Wunknown-warning-option]
1
This can be seen when compiling the whole kernel as some warnings that
are normally disabled (see below) show up. The full list of flags
missing from drivers/firmware/efi/libstub are the following (gathered
from diffing .arm64-stub.o.cmd):
-fno-delete-null-pointer-checks
-Wno-address-of-packed-member
-Wframe-larger-than=2048
-Wno-unused-const-variable
-fno-strict-overflow
-fno-merge-all-constants
-fno-stack-check
-Werror=date-time
-Werror=incompatible-pointer-types
-ffreestanding
-fno-stack-protector
Use cc-disable-warning so that it gets disabled for GCC and does nothing
for Clang.
Fixes: ebcc5928c5 ("arm64: Silence gcc warnings about arch ABI drift")
Link: https://github.com/ClangBuiltLinux/linux/issues/511
Reported-by: Qian Cai <cai@lca.pw>
Acked-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
When a switch event, such as tablet mode/laptop mode or docked/undocked,
wakes a device make sure that the value of the swich is reported.
Without when a device is put in tablet mode from laptop mode when it is
suspended or vice versa the device will wake up but mode will be
incorrect.
Tested by suspending a device in laptop mode and putting it in tablet
mode, the device resumes and is in tablet mode. When suspending the
device in tablet mode and putting it in laptop mode the device resumes
and is in laptop mode.
Signed-off-by: Mathew King <mathewk@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Commit 78f3ac76d9 ("platform/x86: asus-wmi: Tell the EC the OS will
handle the display off hotkey") causes the backlight to be permanently off
on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC
1015BX, Asus EeePC 1025C).
The asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL) call added
by that commit is made conditional in this commit and only enabled in
the quirk_entry structs in the asus-nb-wmi driver fixing the broken
display / backlight on various EeePC laptop models.
Cc: João Paulo Rechi Vita <jprvita@endlessm.com>
Fixes: 78f3ac76d9 ("platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Booting with kernel parameter "rdt=cmt,mbmtotal,memlocal,l3cat,mba" and
executing "mount -t resctrl resctrl -o mba_MBps /sys/fs/resctrl" results in
a NULL pointer dereference on systems which do not have local MBM support
enabled..
BUG: kernel NULL pointer dereference, address: 0000000000000020
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 722 Comm: kworker/0:3 Not tainted 5.2.0-0.rc3.git0.1.el7_UNSUPPORTED.x86_64 #2
Workqueue: events mbm_handle_overflow
RIP: 0010:mbm_handle_overflow+0x150/0x2b0
Only enter the bandwith update loop if the system has local MBM enabled.
Fixes: de73f38f76 ("x86/intel_rdt/mba_sc: Feedback loop to dynamically update mem bandwidth")
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20190610171544.13474-1-prarit@redhat.com
When a new control group is created __init_one_rdt_domain() walks all
the other closids to calculate the sets of used and unused bits.
If it discovers a pseudo_locksetup group, it breaks out of the loop. This
means any later closid doesn't get its used bits added to used_b. These
bits will then get set in unused_b, and added to the new control group's
configuration, even if they were marked as exclusive for a later closid.
When encountering a pseudo_locksetup group, we should continue. This is
because "a resource group enters 'pseudo-locked' mode after the schemata is
written while the resource group is in 'pseudo-locksetup' mode." When we
find a pseudo_locksetup group, its configuration is expected to be
overwritten, we can skip it.
Fixes: dfe9674b04 ("x86/intel_rdt: Enable entering of pseudo-locksetup mode")
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H Peter Avin <hpa@zytor.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190603172531.178830-1-james.morse@arm.com
Apparently, some Qualcomm arm64 platforms which appear to expose their
SMMU global register space are still, in fact, using a hypervisor to
mediate it by trapping and emulating register accesses. Sadly, some
deployed versions of said trapping code have bugs wherein they go
horribly wrong for stores using r31 (i.e. XZR/WZR) as the source
register.
While this can be mitigated for GCC today by tweaking the constraints
for the implementation of writel_relaxed(), to avoid any potential
arms race with future compilers more aggressively optimising register
allocation, the simple way is to just remove all the problematic
constant zeros. For the write-only TLB operations, the actual value is
irrelevant anyway and any old nearby variable will provide a suitable
GPR to encode. The one point at which we really do need a zero to clear
a context bank happens before any of the TLB maintenance where crashes
have been reported, so is apparently not a problem... :/
Reported-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Tested-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Our SDVO audio support is pretty bogus. We can't push audio over the
SDVO bus, so trying to enable audio in the SDVO control register doesn't
do anything. In fact it looks like the SDVO encoder will always mix in
the audio coming over HDA, and there's no (at least documented) way to
disable that from our side. So HDMI audio does work currently on gen4
but only by luck really. On gen3 it got broken by the referenced commit.
And what has always been missing on every platform is the ELD.
To pass the ELD to the audio driver we need to write it to magic buffer
in the SDVO encoder hardware which then gets pulled out via HDA in the
other end. Ie. pretty much the same thing we had for native HDMI before
we started to just pass the ELD between the drivers. This sort of
explains why we even have that silly hardware buffer with native HDMI.
$ cat /proc/asound/card0/eld#1.0
-monitor_present 0
-eld_valid 0
+monitor_present 1
+eld_valid 1
+monitor_name LG TV
+connection_type HDMI
+...
This also fixes our state readout since we can now query the SDVO
encoder about the state of the "ELD valid" and "presence detect"
bits. As mentioned those don't actually control whether audio
gets sent over the HDMI cable, but it's the best we can do. And with
the state checker appeased we can re-enable HDMI audio for gen3.
Cc: stable@vger.kernel.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: zardam@gmail.com
Tested-by: zardam@gmail.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108976
Fixes: de44e256b9 ("drm/i915/sdvo: Shut up state checker with hdmi cards on gen3")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190409144054.24561-3-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
(cherry picked from commit dc49a56bd4)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
While loading the DMC firmware we were double checking the headers made
sense, but in no place we checked that we were actually reading memory
we were supposed to. This could be wrong in case the firmware file is
truncated or malformed.
Before this patch:
# ls -l /lib/firmware/i915/icl_dmc_ver1_07.bin
-rw-r--r-- 1 root root 25716 Feb 1 12:26 icl_dmc_ver1_07.bin
# truncate -s 25700 /lib/firmware/i915/icl_dmc_ver1_07.bin
# modprobe i915
# dmesg| grep -i dmc
[drm:intel_csr_ucode_init [i915]] Loading i915/icl_dmc_ver1_07.bin
[drm] Finished loading DMC firmware i915/icl_dmc_ver1_07.bin (v1.7)
i.e. it loads random data. Now it fails like below:
[drm:intel_csr_ucode_init [i915]] Loading i915/icl_dmc_ver1_07.bin
[drm:csr_load_work_fn [i915]] *ERROR* Truncated DMC firmware, rejecting.
i915 0000:00:02.0: Failed to load DMC firmware i915/icl_dmc_ver1_07.bin. Disabling runtime power management.
i915 0000:00:02.0: DMC firmware homepage: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915
Before reading any part of the firmware file, validate the input first.
Fixes: eb805623d8 ("drm/i915/skl: Add support to load SKL CSR firmware.")
Cc: stable@vger.kernel.org
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190605235535.17791-1-lucas.demarchi@intel.com
(cherry picked from commit bc7b488b1d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
PSCI spec define 1st parameter's bit 16 of function CPU_SUSPEND to
indicate CPU State Type: 0 for standby, 1 for power down. In this
case, we want to select standby for CPU idle feature. But current
setting wrongly select power down and cause CPU SUSPEND fail every
time. Need this fix.
Fixes: 8897f3255c ("arm64: dts: Add support for NXP LS1028A SoC")
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
There is a patchwork instance behind bcm-kernel-feedback-list that is
helpful to track submissions, add this list for the Broadcom BCM53573
architecture.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
There is a patchwork instance behind bcm-kernel-feedback-list that is
helpful to track submissions for the Broadcom ARM-SoC maintainers and
make sure there are no patches missed, add this list for the Broadcom
BCM2835 architecture.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Pull ptrace fixes from Eric Biederman:
"This is just two very minor fixes:
- prevent ptrace from reading unitialized kernel memory found twice
by syzkaller
- restore a missing smp_rmb in ptrace_may_access and add comment tp
it so it is not removed by accident again.
Apologies for being a little slow about getting this to you, I am
still figuring out how to develop with a little baby in the house"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
ptrace: restore smp_rmb() in __ptrace_may_access()
signal/ptrace: Don't leak unitialized kernel memory with PTRACE_PEEK_SIGINFO
Pull swiotlb fix from Konrad Rzeszutek Wilk:
"One tiny fix for ARM64 where we could allocate the SWIOTLB twice"
* 'stable/for-linus-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
xen/swiotlb: don't initialize swiotlb twice on arm64
Pull VFIO fixes from Alex Williamson:
"Fix mdev device create/remove paths to provide initialized device for
parent driver create callback and correct ordering of device removal
from bus prior to initiating removal by parent.
Also resolve races between parent removal and device create/remove
paths (all from Parav Pandit)"
* tag 'vfio-v5.2-rc5' of git://github.com/awilliam/linux-vfio:
vfio/mdev: Synchronize device create/remove with parent removal
vfio/mdev: Avoid creating sysfs remove file on stale device removal
vfio/mdev: Improve the create/remove sequence
Pull btrfs fix from David Sterba:
"One regression fix to TRIM ioctl.
The range cannot be used as its meaning can be confusing regarding
physical and logical addresses. This confusion in code led to
potential corruptions when the range overlapped data.
The original patch made it to several stable kernels and was promptly
reverted, the version for master branch is different due to additional
changes but the change is effectively the same"
* tag 'for-5.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: Always trim all unallocated space in btrfs_trim_free_extents
There are several scenarios that keyboard can NOT wake up system
from suspend, e.g., if a keyboard is depressed between system
device suspend phase and device noirq suspend phase, the keyboard
ISR will be called and both keyboard depress and release interrupts
will be disabled, then keyboard will no longer be able to wake up
system. Another scenario would be, if a keyboard is kept depressed,
and then system goes into suspend, the expected behavior would be
when keyboard is released, system will be waked up, but current
implementation can NOT achieve that, because both depress and release
interrupts are disabled in ISR, and the event check is still in
progress.
To fix these issues, need to make sure keyboard's depress or release
interrupt is enabled after noirq device suspend phase, this patch
moves the suspend/resume callback to noirq suspend/resume phase, and
enable the corresponding interrupt according to current keyboard status.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
These strings may come from untrusted sources (e.g. file xattrs) so they
need to be properly escaped.
Reproducer:
# setenforce 0
# touch /tmp/test
# setfattr -n security.selinux -v 'kuřecí řízek' /tmp/test
# runcon system_u:system_r:sshd_t:s0 cat /tmp/test
(look at the generated AVCs)
Actual result:
type=AVC [...] trawcon=kuřecí řízek
Expected result:
type=AVC [...] trawcon=6B75C5996563C3AD20C599C3AD7A656B
Fixes: fede148324 ("selinux: log invalid contexts in AVCs")
Cc: stable@vger.kernel.org # v5.1+
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Acked-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Restore the read memory barrier in __ptrace_may_access() that was deleted
a couple years ago. Also add comments on this barrier and the one it pairs
with to explain why they're there (as far as I understand).
Fixes: bfedb58925 ("mm: Add a user_ns owner to mm_struct and fix ptrace permission checks")
Cc: stable@vger.kernel.org
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
The call to sdma_progress() is called outside the wait lock.
In this case, there is a race condition where sdma_progress() can return
false and the sdma_engine can idle. If that happens, there will be no
more sdma interrupts to cause the wakeup and the user_sdma xmit will hang.
Fix by moving the lock to enclose the sdma_progress() call.
Also, delete busycount. The need for this was removed by:
commit bcad29137a ("IB/hfi1: Serve the most starved iowait entry first")
Cc: <stable@vger.kernel.org>
Fixes: 7724105686 ("IB/hfi1: add driver files")
Reviewed-by: Gary Leshner <Gary.S.Leshner@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Stefano Brivio says:
====================
Don't assume linear buffers in error handlers for VXLAN and GENEVE
Guillaume noticed the same issue fixed by commit 26fc181e6c ("fou, fou6:
do not assume linear skbs") for fou and fou6 is also present in VXLAN and
GENEVE error handlers: we can't assume linear buffers there, we need to
use pskb_may_pull() instead.
====================
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit a07966447f ("geneve: ICMP error lookup handler") I wrongly
assumed buffers from icmp_socket_deliver() would be linear. This is not
the case: icmp_socket_deliver() only guarantees we have 8 bytes of linear
data.
Eric fixed this same issue for fou and fou6 in commits 26fc181e6c
("fou, fou6: do not assume linear skbs") and 5355ed6388 ("fou, fou6:
avoid uninit-value in gue_err() and gue6_err()").
Use pskb_may_pull() instead of checking skb->len, and take into account
the fact we later access the GENEVE header with udp_hdr(), so we also
need to sum skb_transport_header() here.
Reported-by: Guillaume Nault <gnault@redhat.com>
Fixes: a07966447f ("geneve: ICMP error lookup handler")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit c3a43b9fec ("vxlan: ICMP error lookup handler") I wrongly
assumed buffers from icmp_socket_deliver() would be linear. This is not
the case: icmp_socket_deliver() only guarantees we have 8 bytes of linear
data.
Eric fixed this same issue for fou and fou6 in commits 26fc181e6c
("fou, fou6: do not assume linear skbs") and 5355ed6388 ("fou, fou6:
avoid uninit-value in gue_err() and gue6_err()").
Use pskb_may_pull() instead of checking skb->len, and take into account
the fact we later access the VXLAN header with udp_hdr(), so we also
need to sum skb_transport_header() here.
Reported-by: Guillaume Nault <gnault@redhat.com>
Fixes: c3a43b9fec ("vxlan: ICMP error lookup handler")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
HSDK SoC has memory bridge which allows to configure memory map
for different AXI masters in runtime.
As of today we adjust memory apertures configuration in U-boot
so we have different configuration in case of loading kernel
via U-boot and JTAG.
It isn't really critical in case of existing platform configuration
as configuration differs for <currently> unused address space
regions or unused AXI masters. However we may face with this
issue when we'll bringup new peripherals or touch their address
space.
Fix that by perform full configuration of memory bridge in HSDK
platform code. Basically we simply copy memory bridge configuration
code from U-boot.
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
For a long time we used to hard-code CROSS_COMPILE prefix
for ARC until it started to cause problems, so we decided to
solely rely on CROSS_COMPILE externally set by a user:
commit 40660f1fce ("ARC: build: Don't set CROSS_COMPILE in arch's Makefile").
While it works perfectly fine for build-systems where the prefix
gets defined anyways for us human beings it's quite an annoying
requirement especially given most of time the same one prefix
"arc-linux-" is all what we need.
It looks like finally we're getting the best of both worlds:
1. W/o cross-toolchain we still may install headers, build .dtb etc
2. W/ cross-toolchain get the kerne built with only ARCH=arc
Inspired by [1] & [2].
[1] http://lists.infradead.org/pipermail/linux-snps-arc/2019-May/005788.html
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fc2b47b55f17
A side note: even though "cc-cross-prefix" does its job it pollutes
console with output of "which" for all the prefixes it didn't manage to find
a matching cross-compiler for like that:
| # ARCH=arc make defconfig
| which: no arceb-linux-gcc in (~/.local/bin:~/bin:/usr/bin:/usr/sbin)
| *** Default configuration is based on 'nsim_hs_defconfig'
Suggested-by: Vineet Gupta <vgupta@synopsys.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
The below patch fixes an incorrect zerocopy refcnt increment when
appending with MSG_MORE to an existing zerocopy udp skb.
send(.., MSG_ZEROCOPY | MSG_MORE); // refcnt 1
send(.., MSG_ZEROCOPY | MSG_MORE); // refcnt still 1 (bar frags)
But it missed that zerocopy need not be passed at the first send. The
right test whether the uarg is newly allocated and thus has extra
refcnt 1 is not !skb, but !skb_zcopy.
send(.., MSG_MORE); // <no uarg>
send(.., MSG_ZEROCOPY); // refcnt 1
Fixes: 100f6d8e09 ("net: correct zerocopy refcnt with udp MSG_MORE")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[What]
readptr read always returns zero, since most likely
these blocks are either power or clock gated.
[How]
fetch rptr after amdgpu_ring_alloc() which informs
the power management code that the block is about to be
used and hence the gating is turned off.
Signed-off-by: Louis Li <Ching-shih.Li@amd.com>
Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
The ioctl argument was parsed as the wrong type.
Fixes: b21d9c435f ("ovl: support the FS_IOC_FS[SG]ETXATTR ioctls")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
In RV32, udelay would delay the wrong cycle. When it shifts right
"UDELAY_SHIFT" bits, it either delays 0 cycle or 1 cycle. It only works
correctly in RV64. Because the 'ucycles' always needs to be 64 bits
variable.
Signed-off-by: Nick Hu <nickhu@andestech.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
[paul.walmsley@sifive.com: fixed minor spelling error]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Commit bf0102a0fd ("riscv: call pm_power_off from machine_halt /
machine_power_off") removed the export of pm_power_off, but it is used by
several modules:
ERROR: "pm_power_off" [drivers/mfd/rk808.ko] undefined!
ERROR: "pm_power_off" [drivers/mfd/max8907.ko] undefined!
ERROR: "pm_power_off" [drivers/mfd/axp20x.ko] undefined!
ERROR: "pm_power_off" [drivers/char/ipmi/ipmi_poweroff.ko] undefined!
Signed-off-by: Andreas Schwab <schwab@suse.de>
Fixes: bf0102a0fd ("riscv: call pm_power_off from machine_halt / machine_power_off")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
When building sg tables, honor the device sg list segment size limitation.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
Enable PRCI clock driver and serial console by default, so the default
upstream defconfig is bootable to a serial console.
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
The HB port may not be available for various reasons. Either it has been
disabled by a config option or by the hypervisor for other reasons.
In that case, make sure we have a backup plan and use the backdoor port
instead with a performance penalty.
Cc: stable@vger.kernel.org
Fixes: 89da76fde6 ("drm/vmwgfx: Add VMWare host messaging capability")
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
Starting with ACPI 6.2 bits 1 and 2 of the BGRT status field are no longer
reserved. These bits are now used to indicate if the image needs to be
rotated before being displayed.
The first device using these bits has now shown up (the GPD MicroPC) and
the reserved bits check causes us to reject the valid BGRT table on this
device.
Rather then changing the reserved bits check, allowing only the 2 new bits,
instead just completely remove it so that we do not end up with a similar
problem when more bits are added in the future.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
If the leftmost parent node of the tree has does not have a child
on the left side, then trie_get_next_key (and bpftool map dump) will
not look at the child on the right. This leads to the traversal
missing elements.
Lookup is not affected.
Update selftest to handle this case.
Reproducer:
bpftool map create /sys/fs/bpf/lpm type lpm_trie key 6 \
value 1 entries 256 name test_lpm flags 1
bpftool map update pinned /sys/fs/bpf/lpm key 8 0 0 0 0 0 value 1
bpftool map update pinned /sys/fs/bpf/lpm key 16 0 0 0 0 128 value 2
bpftool map dump pinned /sys/fs/bpf/lpm
Returns only 1 element. (2 expected)
Fixes: b471f2f1de ("bpf: implement MAP_GET_NEXT_KEY command for LPM_TRIE")
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Check for exact and correct return value to snd_i2c_sendbytes
call for EWS/DMX 6Fire (snd_ice1712).
Fixes a systemic error on every boot starting from kernel 5.1
onwards to snd_ice1712 driver ("cannot send pca") on Terratec
EWS/DMX 6Fire PCI soundcards.
Check for exact and correct return value to snd_i2c_sendbytes
call for EWS/DMX 6Fire (snd_ice1712).
Fixes a systemic error on every boot to snd_ice1712 driver
("cannot send pca") on Terratec EWS/DMX 6Fire PCI soundcards.
Fixes: c99776cc40 ("ALSA: ice1712: fix a missing check of snd_i2c_sendbytes")
Signed-off-by: Rui Nuno Capela <rncbc@rncbc.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Stanton SCS.1m can transfer isochronous packet with Multi Bit Linear
Audio data channels, therefore it allows software to capture PCM
substream. However, ALSA oxfw driver doesn't.
This commit changes the driver to add one PCM substream for capture
direction.
Fixes: de5126cc3c ("ALSA: oxfw: add stream format quirk for SCS.1 models")
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The data for isochronous resources is not destroyed in expected place.
This commit fixes the bug.
Cc: <stable@vger.kernel.org> # v4.12+
Fixes: 9b2bb4f2f4 ("ALSA: firewire-motu: add stream management functionality")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Get rid of gcc9 warnings like this:
arch/s390/boot/ipl_report.c: In function 'find_bootdata_space':
arch/s390/boot/ipl_report.c:42:26: warning: taking address of packed member of 'struct ipl_rb_components' may result in an unaligned pointer value [-Waddress-of-packed-member]
42 | for_each_rb_entry(comp, comps)
| ^~~~~
This is effectively the s390 variant of commit 20c6c18904
("x86/boot: Disable the address-of-packed-member compiler warning").
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Pull block cgroup symlink revert from Jens Axboe:
"I talked to Tejun about this offline, and he's not a huge fan of the
symlink.
So let's revert this for now, and Paolo can do this properly for 5.3
instead"
* tag 'for-linus-20190610' of git://git.kernel.dk/linux-block:
cgroup/bfq: revert bfq.weight symlink change
Pull regulator fix from Mark Brown:
"Just one driver specific fix here, for a boot regression introduced
during some modernization work on the tps6507x driver"
* tag 'regulator-fix-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: tps6507x: Fix boot regression due to testing wrong init_data pointer
Pull spi fixes from Mark Brown:
"A small set of fixes here.
One core fix for error handling when we fail to set up the hardware
before initiating a transfer and another one reverting a change in the
core which broke Raspberry Pi in common use cases as part of some
optimization work.
There's also a couple of driver specific fixes"
* tag 'spi-fix-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: abort spi_sync if failed to prepare_transfer_hardware
spi: spi-fsl-spi: call spi_finalize_current_message() at the end
spi: bitbang: Fix NULL pointer dereference in spi_unregister_master
spi: Fix Raspberry Pi breakage
While adding handling for dying task group leaders c03cd7738a
("cgroup: Include dying leaders with live threads in PROCS
iterations") added an inverted cset skip condition to
css_task_iter_advance_css_set(). It should skip cset if it's
completely empty but was incorrectly testing for the inverse condition
for the dying_tasks list. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: c03cd7738a ("cgroup: Include dying leaders with live threads in PROCS iterations")
Reported-by: syzbot+d4bba5ccd4f9a2a68681@syzkaller.appspotmail.com
Vinod writes:
soundwire fixes for v5.2-rc4
Srinivas Kandagatla fixed by bunch of issues, two in core for locking
and out of bound access and one in intel driver copy-paste
* tag 'soundwire-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: intel: set dai min and max channels correctly
soundwire: stream: fix bad unlock balance
soundwire: stream: fix out of boundary access on port properties
Move the client_mutex lock to snd_soc_unbind_card() before
removing link components. This prevents the deadlock
in the error path in snd_soc_instantiate_card().
Fixes: 34ac3c3eb8 (ASoC: core: lock client_mutex while removing
link components)
Reported-by: kernelci.org bot <bot@kernelci.org>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Johan writes:
USB-serial fixes for 5.2-rc5
Here are some new device ids for option and pl2303.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
* tag 'usb-serial-5.2-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: option: add Telit 0x1260 and 0x1261 compositions
USB: serial: pl2303: add Allied Telesis VT-Kit3
USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode
There's some discussion on how to do this the best, and Tejun prefers
that BFQ just create the file itself instead of having cgroups support
a symlink feature.
Hence revert commit 54b7b868e8 and 19e9da9e86 for 5.2, and this
can be done properly for 5.3.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Active level of the mmc1 cd gpio needs to be low instead of high.
Fix PCM-953 and phyBOARD-WEGA.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
usb4_tm is unsed on dra72 and accessing the module
with ti,sysc is causing a boot crash hence disable its target
module.
Fixes: 549fce068a ("ARM: dts: dra7: Add l4 interconnect hierarchy and ti-sysc data")
Reported-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Packets received at the NFP driver may be redirected to egress of another
netdev (e.g. in the case of OvS internal ports). On the egress path, some
processes, like TC egress hooks, may expect the network header offset
field in the skb to be correctly set. If this is not the case there is
potential for abnormal behaviour and even the triggering of BUG() calls.
Set the skb network header field before the mac header pull when doing a
packet redirect.
Fixes: 27f54b5825 ("nfp: allow fallback packets from non-reprs")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 794200d662 ("tcp: undo cwnd on Fast Open spurious SYNACK
retransmit") may cause tcp_fastretrans_alert() to warn about pending
retransmission in Open state. This is triggered when the Fast Open
server both sends data and has spurious SYNACK retransmission during
the handshake, and the data packets were lost or reordered.
The root cause is a bit complicated:
(1) Upon receiving SYN-data: a full socket is created with
snd_una = ISN + 1 by tcp_create_openreq_child()
(2) On SYNACK timeout the server/sender enters CA_Loss state.
(3) Upon receiving the final ACK to complete the handshake, sender
does not mark FLAG_SND_UNA_ADVANCED since (1)
Sender then calls tcp_process_loss since state is CA_loss by (2)
(4) tcp_process_loss() does not invoke undo operations but instead
mark REXMIT_LOST to force retransmission
(5) tcp_rcv_synrecv_state_fastopen() calls tcp_try_undo_loss(). It
changes state to CA_Open but has positive tp->retrans_out
(6) Next ACK triggers the WARN_ON in tcp_fastretrans_alert()
The step that goes wrong is (4) where the undo operation should
have been invoked because the ACK successfully acknowledged the
SYN sequence. This fixes that by specifically checking undo
when the SYN-ACK sequence is acknowledged. Then after
tcp_process_loss() the state would be further adjusted based
in tcp_fastretrans_alert() to avoid triggering the warning in (6).
Fixes: 794200d662 ("tcp: undo cwnd on Fast Open spurious SYNACK retransmit")
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Falcon says:
====================
ibmvnic: Fixes for device reset handling
This series contains three unrelated fixes to issues seen during
device resets. The first patch fixes an error when the driver requests
to deactivate the link of an uninitialized device, resulting in a
failure to reset. Next, a patch to fix multicast transmission
failures seen after a driver reset. The final patch fixes mishandling
of memory allocation failures during device initialization, which
caused a kernel oops.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The return values for these memory allocations are unchecked,
which may cause an oops if the driver does not handle them after
a failure. Fix by checking the function's return code.
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It was observed that multicast packets were no longer received after
a device reset. The fix is to resend the current multicast list to
the backing device after recovery.
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Check driver state before halting it during a reset. If the driver is
not running, do nothing. Otherwise, a request to deactivate a down link
can cause an error and the reset will fail.
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed says:
====================
Mellanox, mlx5 fixes 2019-06-07
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
For -stable v4.17
('net/mlx5: Avoid reloading already removed devices')
For -stable v5.0
('net/mlx5e: Avoid detaching non-existing netdev under switchdev mode')
For -stable v5.1
('net/mlx5e: Fix source port matching in fdb peer flow rule')
('net/mlx5e: Support tagged tunnel over bond')
('net/mlx5e: Add ndo_set_feature for uplink representor')
('net/mlx5: Update pci error handler entries and command translation')
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Marc Kleine-Budde says:
====================
pull-request: can 2019-06-07
this is a pull reqeust of 9 patches for net/master.
The first patch is by Alexander Dahl and removes a duplicate menu entry from
the Kconfig. The next patch by Joakim Zhang fixes the timeout in the flexcan
driver when setting small bit rates. Anssi Hannula's patch for the xilinx_can
driver fixes the bittiming_const for CAN FD core. The two patches by Sean
Nyekjaer bring mcp25625 to the existing mcp251x driver. The patch by Eugen
Hristev implements an errata for the m_can driver. YueHaibing's patch fixes the
error handling ing can_init(). The patch by Fabio Estevam for the flexcan
driver removes an unneeded registration message during flexcan_probe(). And the
last patch is by Willem de Bruijn and adds the missing purging the socket
error queue on sock destruct.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If you configure a route with multiple labels, e.g.
ip route add 10.10.3.0/24 encap mpls 16/100 via 10.10.2.2 dev ens4
A warning is logged:
kernel: [ 130.561819] netlink: 'ip': attribute type 1 has an invalid
length.
This happens because mpls_iptunnel_policy has set the type of
MPLS_IPTUNNEL_DST to fixed size NLA_U32.
Change it to a minimum size.
nla_get_labels() does the remaining validation.
Fixes: e3e4712ec0 ("mpls: ip tunnel support")
Signed-off-by: George Wilkie <gwilkie@vyatta.att-mail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[Resent to net instead of net-next - may clash with Anders Roxell's patch
series addressing duplicate module names]
Commit 31dd83b966 ("net-next: phy: new Asix Electronics PHY driver")
introduced a new PHY driver drivers/net/phy/asix.c that causes a module
name conflict with a pre-existiting driver (drivers/net/usb/asix.c).
The PHY driver is used by the X-Surf 100 ethernet card driver, and loaded
by that driver via its PHY ID. A rename of the driver looks unproblematic.
Rename PHY driver to ax88796b.c in order to resolve name conflict.
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Fixes: 31dd83b966 ("net-next: phy: new Asix Electronics PHY driver")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Before taking a refcount, make sure the object is not already
scheduled for deletion.
Same fix is needed in ipv6_flowlabel_opt()
Fixes: 18367681a1 ("ipv6 flowlabel: Convert np->ipv6_fl_list to RCU.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
fix an uninitialized variable:
CC net/ipv4/fib_semantics.o
net/ipv4/fib_semantics.c: In function 'fib_check_nh_v4_gw':
net/ipv4/fib_semantics.c:1027:12: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized]
if (!tbl || err) {
^~
Signed-off-by: Enrico Weigelt <info@metux.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Calling input_mt_init_slots() copies ABS_MT_POSITION_X to ABS_X and
so on, but doing so before calling touchscreen_parse_properties()
leaves ABS_X min = max = 0 which may prompt an X server to ignore
the device.
To solve this problem, wait to call input_mt_init_slots() until all
absolute axis information has been resolved (whether that's through
device tree via touchscreen_parse_properties() or from reading from
the device directly).
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
GPD has done it again, make a nice device (good), use way too generic
DMI strings (bad) and use a portrait screen rotated 90 degrees (ugly).
Because of the too generic DMI strings this entry is also doing bios-date
matching, so the gpd_pocket2 data struct may very well need to be updated
with some extra bios-dates in the future.
Changes in v2:
-Add one more known BIOS date to the list of BIOS dates
Cc: Jurgen Kramer <gtmkramer@xs4all.nl>
Reported-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190524125759.14131-1-hdegoede@redhat.com
(cherry picked from commit 6dab9102dd)
This driver uses devm_ioremap and of* functions. This fixes a
linking failure with e.g. ARCH=um.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com>
Fixes: a3b9a99 ("counter: add FlexTimer Module Quadrature decoder counter driver")
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
On x86_64 when GPIOLIB is not set the following build errors
are seen:
drivers/staging/iio/addac/adt7316.c:947:3: error: implicit declaration of function 'gpiod_set_value' [-Werror=implicit-function-declaration]
drivers/staging/iio/addac/adt7316.c:1805:2: error: implicit declaration of function 'irqd_get_trigger_type' [-Werror=implicit-function-declaration]
These functions are provided by the <linux/gpio/consumer.h>
and <linux/irq.h> headers, so include them to fix these
build errors.
While at it, remove <linux/gpio.h> as this driver is a GPIO
consumer and not a GPIO driver.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Felipe writes:
USB: fixes for v5.2-rc4
DWC2 gets a fix for zlp handling which allows DWC2 to pass USBCV MSC
tests.
A memory leak in fusb300 was plugged.
DWC2 also got a fix for wMaxPacketSize handling while acting as host
which fixes a regression with USB Cameras.
Apart from these, the usual set of minor fixes.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
* tag 'fixes-for-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
usb: gadget: udc: lpc32xx: fix return value check in lpc32xx_udc_probe()
usb: gadget: dwc2: fix zlp handling
usb: dwc2: Set actual frame number for completed ISOC transfer for none DDMA
usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC
usb: gadget: fusb300_udc: Fix memory leak of fusb300->ep[i]
usb: phy: mxs: Disable external charger detect in mxs_phy_hw_init()
usb: dwc2: Fix DMA cache alignment issues
usb: dwc2: host: Fix wMaxPacketSize handling (fix webcam regression)
24 bit expanders use REG_ADDR_AI in combination with register addressing. This
conflicts with regmap which takes this bit as part of the register number,
i.e. a second cache entry is defined for accessed with REG_ADDR_AI being
set although on the chip it is the same register as with REG_ADDR_AI being
cleared.
The problem was introduced by
commit b32cecb46b ("gpio: pca953x: Extract the register address mangling to single function")
but only became visible by
commit 8b9f9d4dc5 ("regmap: verify if register is writeable before writing operations")
because before, the regmap size was effectively ignored and
pca953x_writeable_register() did know to ignore REG_ADDR_AI. Still, there
were two separate cache entries created.
Since the use of REG_ADDR_AI seems to be static we can work around this
issue by simply increasing the size of the regmap to cover the "virtual"
registers with REG_ADDR_AI being set. This only means that half of the
regmap buffer will be unused.
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Daniel Borkmann says:
====================
pull-request: bpf 2019-06-07
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix several bugs in riscv64 JIT code emission which forgot to clear high
32-bits for alu32 ops, from Björn and Luke with selftests covering all
relevant BPF alu ops from Björn and Jiong.
2) Two fixes for UDP BPF reuseport that avoid calling the program in case of
__udp6_lib_err and UDP GRO which broke reuseport_select_sock() assumption
that skb->data is pointing to transport header, from Martin.
3) Two fixes for BPF sockmap: a use-after-free from sleep in psock's backlog
workqueue, and a missing restore of sk_write_space when psock gets dropped,
from Jakub and John.
4) Fix unconnected UDP sendmsg hook API which is insufficient as-is since it
breaks standard applications like DNS if reverse NAT is not performed upon
receive, from Daniel.
5) Fix an out-of-bounds read in __bpf_skc_lookup which in case of AF_INET6
fails to verify that the length of the tuple is long enough, from Lorenz.
6) Fix libbpf's libbpf__probe_raw_btf to return an fd instead of 0/1 (for
{un,}successful probe) as that is expected to be propagated as an fd to
load_sk_storage_btf() and thus closing the wrong descriptor otherwise,
from Michal.
7) Fix bpftool's JSON output for the case when a lookup fails, from Krzesimir.
8) Minor misc fixes in docs, samples and selftests, from various others.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Stacked devices like bond interface may have a VLAN device on top of
them. Detect lag state correctly under this condition, and return the
correct routed net device, according to it the encap header is built.
Fixes: e32ee6c78e ("net/mlx5e: Support tunnel encap over tagged Ethernet")
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
After introducing dedicated uplink representor, the netdev instance
set over the esw manager vport (PF) became no longer in use, so it was
removed in the cited commit once we're on switchdev mode.
However, the mlx5e_detach function was not updated accordingly, and it
still tries to detach a non-existing netdev, causing a kernel crash.
This patch fixes this issue.
Fixes: aec002f6f8 ("net/mlx5e: Uninstantiate esw manager vport netdev on switchdev mode")
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
The cited commit changed the initialization placement of the eswitch
attributes so it is done prior to parse tc actions function call,
including among others the in_rep and in_mdev fields which are mistakenly
reassigned inside the parse actions function.
This breaks the source port matching criteria of the peer redirect rule.
Fix by removing the now redundant reassignment of the already initialized
fields.
Fixes: 988ab9c736 ("net/mlx5e: Introduce mlx5e_flow_esw_attr_init() helper")
Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
The TX queue index returned by the fallback function ranges
between [0,NUM CHANNELS - 1] if QoS isn't set and
[0, (NUM CHANNELS)*(NUM TCs) -1] otherwise.
Our HW uses different TC mapping than the fallback function
(which is denoted as 'up', user priority) so we only need to extract
a channel number out of the returned value.
Since (NUM CHANNELS)*(NUM TCs) is a relatively small number, using
reciprocal scale almost always returns zero.
We instead access the 'txq2sq' table to extract the sq (and with it the
channel number) associated with the tx queue, thus getting
a more evenly distributed channel number.
Perf:
Rx/Tx side with Intel(R) Xeon(R) Silver 4108 CPU @ 1.80GHz and ConnectX-5.
Used 'iperf' UDP traffic, 10 threads, and priority 5.
Before: 0.566Mpps
After: 2.37Mpps
As expected, releasing the existing bottleneck of steering all traffic
to TX queue zero significantly improves transmission rates.
Fixes: 7ccdd0841b ("net/mlx5e: Fix select queue callback")
Signed-off-by: Shay Agroskin <shayag@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
After we have a dedicated uplink representor, the new netdev ops
doesn't support ndo_set_feature. Because of that, we can't change
some features, eg. rxvlan. Now add it back.
In this patch, I also do a cleanup for the features flag handling,
eg. remove duplicate NETIF_F_HW_TC flag setting.
Fixes: aec002f6f8 ("net/mlx5e: Uninstantiate esw manager vport netdev on switchdev mode")
Signed-off-by: Chris Mi <chrism@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Prior to reloading a device we must first verify that it was not already
removed. Otherwise, the attempt to remove the device will do nothing, and
in that case we will end up proceeding with adding an new device that no
one was expecting to remove, leaving behind used resources such as EQs that
causes a failure to destroy comp EQs and syndrome (0x30f433).
Fix that by making sure that we try to remove and add a device (based on a
protocol) only if the device is already added.
Fixes: c5447c7059 ("net/mlx5: E-Switch, Reload IB interface when switching devlink modes")
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Add missing entries for create/destroy UCTX and UMEM commands.
This could get us wrong "unknown FW command" error in flows
where we unbind the device or reset the driver.
Also the translation of these commands from opcodes to string
was missing.
Fixes: 6e3722baac ("IB/mlx5: Use the correct commands for UMEM and UCTX allocation")
Signed-off-by: Edward Srouji <edwards@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Switch to using Donald Knuth's binary search algorithm (The Art of
Computer Programming, vol. 3, section 6.2.1). This should've been done
from the very beginning but the author must've been smoking something
very potent at the time.
The problem with the current one was that it would return the wrong
element index in certain situations:
https://lkml.kernel.org/r/CAM_iQpVd02zkVJ846cj-Fg1yUNuz6tY5q1Vpj4LrXmE06dPYYg@mail.gmail.com
and the noodling code after the loop was fishy at best.
So switch to using Knuth's binary search. The final result is much
cleaner and straightforward.
Fixes: 011d826111 ("RAS: Add a Corrected Errors Collector")
Reported-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: <stable@vger.kernel.org>
The size of the vmemmap section is hardcoded to 1 TB to support the
maximum amount of system RAM in 4-level paging mode - 64 TB.
However, 1 TB is not enough for vmemmap in 5-level paging mode. Assuming
the size of struct page is 64 Bytes, to support 4 PB system RAM in 5-level,
64 TB of vmemmap area is needed:
4 * 1000^5 PB / 4096 bytes page size * 64 bytes per page struct / 1000^4 TB = 62.5 TB.
This hardcoding may cause vmemmap to corrupt the following
cpu_entry_area section, if KASLR puts vmemmap very close to it and the
actual vmemmap size is bigger than 1 TB.
So calculate the actual size of the vmemmap region needed and then align
it up to 1 TB boundary.
In 4-level paging mode it is always 1 TB. In 5-level it's adjusted on
demand. The current code reserves 0.5 PB for vmemmap on 5-level. With
this change, the space can be saved and thus used to increase entropy
for the randomization.
[ bp: Spell out how the 64 TB needed for vmemmap is computed and massage commit
message. ]
Fixes: eedb92abb9 ("x86/mm: Make virtual memory layout dynamic for CONFIG_X86_5LEVEL=y")
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Kirill A. Shutemov <kirill@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: kirill.shutemov@linux.intel.com
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190523025744.3756-1-bhe@redhat.com
Currently the following message is observed when the flexcan
driver is probed:
flexcan 2090000.flexcan: device registered (reg_base=(ptrval), irq=23)
The reason for printing 'ptrval' is explained at
Documentation/core-api/printk-formats.rst:
"Pointers printed without a specifier extension (i.e unadorned %p) are
hashed to prevent leaking information about the kernel memory layout. This
has the added benefit of providing a unique identifier. On 64-bit machines
the first 32 bits are zeroed. The kernel will print ``(ptrval)`` until it
gathers enough entropy."
Instead of passing %pK, which can print the correct address, simply
remove the entire message as it is not really that useful.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This patch add error path for can_init() to avoid possible crash if some
error occurs.
Fixes: 0d66548a10 ("[CAN]: Add PF_CAN core module")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
During frame reception while the MCAN is in Error Passive state and the
Receive Error Counter has thevalue MCAN_ECR.REC = 127, it may happen
that MCAN_IR.MRAF is set although there was no Message RAM access
failure. If MCAN_IR.MRAF is enabled, an interrupt to the Host CPU is
generated.
Work around:
The Message RAM Access Failure interrupt routine needs to check whether
MCAN_ECR.RP = '1' and MCAN_ECR.REC = '127'.
In this case, reset MCAN_IR.MRAF. No further action is required.
This affects versions older than 3.2.0
Errata explained on Sama5d2 SoC which includes this hardware block:
http://ww1.microchip.com/downloads/en/DeviceDoc/SAMA5D2-Family-Silicon-Errata-and-Data-Sheet-Clarification-DS80000803B.pdf
chapter 6.2
Reproducibility: If 2 devices with m_can are connected back to back,
configuring different bitrate on them will lead to interrupt storm on
the receiving side, with error "Message RAM access failure occurred".
Another way is to have a bad hardware connection. Bad wire connection
can lead to this issue as well.
This patch fixes the issue according to provided workaround.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Fully compatible with mcp2515, the mcp25625 have integrated transceiver.
This patch adds support for the mcp25625 to the existing mcp251x driver.
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Fully compatible with mcp2515, the mcp25625 have integrated transceiver.
This patch add the mcp25625 to the device tree bindings documentation.
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Commit 9e5f1b273e ("can: xilinx_can: add support for Xilinx CAN FD
core") added a new can_bittiming_const structure for CAN FD cores that
support larger values for tseg1, tseg2, and sjw than previous Xilinx CAN
cores, but the commit did not actually take that into use.
Fix that.
Tested with CAN FD core on a ZynqMP board.
Fixes: 9e5f1b273e ("can: xilinx_can: add support for Xilinx CAN FD core")
Reported-by: Shubhrajyoti Datta <shubhrajyoti.datta@gmail.com>
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Cc: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@gmail.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Current we can meet timeout issue when setting a small bitrate like
10000 as follows on i.MX6UL EVK board (ipg clock = 66MHZ, per clock =
30MHZ):
| root@imx6ul7d:~# ip link set can0 up type can bitrate 10000
A link change request failed with some changes committed already.
Interface can0 may have been left with an inconsistent configuration,
please check.
| RTNETLINK answers: Connection timed out
It is caused by calling of flexcan_chip_unfreeze() timeout.
Originally the code is using usleep_range(10, 20) for unfreeze
operation, but the patch (8badd65 can: flexcan: avoid calling
usleep_range from interrupt context) changed it into udelay(10) which is
only a half delay of before, there're also some other delay changes.
After double to FLEXCAN_TIMEOUT_US to 100 can fix the issue.
Meanwhile, Rasmus Villemoes reported that even with a timeout of 100,
flexcan_probe() fails on the MPC8309, which requires a value of at least
140 to work reliably. 250 works for everyone.
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This seems to have slipped in by accident when sorting the entries.
Fixes: ffbdd9172e
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Kalle Valo says:
====================
wireless-drivers fixes for 5.2
First set of fixes for 5.2. Most important here are buffer overflow
fixes for mwifiex.
rtw88
* fix out of bounds compiler warning
* fix rssi handling to get 4x more throughput
* avoid circular locking
rsi
* fix unitilised data warning, these are hopefully the last ones so
that the warning can be enabled by default
mwifiex
* fix buffer overflows
iwlwifi
* remove not used debugfs file
* various fixes
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch removes support for range parameters of FITRIM ioctl when
trimming unallocated space on devices. This is necessary since ranges
passed from user space are generally interpreted as logical addresses,
whereas btrfs_trim_free_extents used to interpret them as device
physical extents. This could result in counter-intuitive behavior for
users so it's best to remove that support altogether.
Additionally, the existing range support had a bug where if an offset
was passed to FITRIM which overflows u64 e.g. -1 (parsed as u64
18446744073709551615) then wrong data was fed into btrfs_issue_discard,
which in turn leads to wrap-around when aligning the passed range and
results in wrong regions being discarded which leads to data corruption.
Fixes: c2d1b3aae3 ("btrfs: Honour FITRIM range constraints during free space trim")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
When fixing the skb leak introduced by the conversion to rbtree, I
forgot about the special case of duplicate fragments. The condition
under the 'insert_error' label isn't effective anymore as
nf_ct_frg6_gather() doesn't override the returned value anymore. So
duplicate fragments now get NF_DROP verdict.
To accept duplicate fragments again, handle them specially as soon as
inet_frag_queue_insert() reports them. Return -EINPROGRESS which will
translate to NF_STOLEN verdict, like any accepted fragment. However,
such packets don't carry any new information and aren't queued, so we
just drop them immediately.
Fixes: a0d56cb911 ("netfilter: ipv6: nf_defrag: fix leakage of unqueued fragments")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
When booting through OF, setup_disp_bat() does nothing because
disp_BAT are not set. By change, it used to work because BOOTX
buffer is mapped 1:1 at address 0x81000000 by the bootloader, and
btext_setup_display() sets virt addr same as phys addr.
But since commit 215b823707 ("powerpc/32s: set up an early static
hash table for KASAN."), a temporary page table overrides the
bootloader mapping.
This 0x81000000 is also problematic with the newly implemented
Kernel Userspace Access Protection (KUAP) because it is within user
address space.
This patch fixes those issues by properly setting disp_BAT through
a call to btext_prepare_BAT(), allowing setup_disp_bat() to
properly setup BAT3 for early bootx screen buffer access.
Reported-by: Mathieu Malaterre <malat@debian.org>
Fixes: 215b823707 ("powerpc/32s: set up an early static hash table for KASAN.")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Tested-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The G12A Primary plane was disabled by writing in the OSD1 configuration
registers, but this caused the plane blender to stall instead of continuing
to blend only the overlay plane.
Fix this by disabling the OSD1 plane in the blender registers, and also
enabling it back using the same register.
Fixes: 490f50c109 ("drm/meson: Add G12A support for OSD1 Plane")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
[narmstrong: fixed nit in commit log]
Link: https://patchwork.freedesktop.org/patch/msgid/20190605141253.24165-3-narmstrong@baylibre.com
The change to pmdp_invalidate() to mark the pmd with _PAGE_INVALID
broke the synchronisation against lock free lookups,
__find_linux_pte()'s pmd_none() check no longer returns true for such
cases.
Fix this by adding a check for this condition as well.
Fixes: da7ad366b4 ("powerpc/mm/book3s: Update pmd_present to look at _PAGE_PRESENT bit")
Cc: stable@vger.kernel.org # v4.20+
Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Commit 1b2443a547 ("powerpc/book3s64: Avoid multiple endian
conversion in pte helpers") changed the actual bitwise tests in
pte_access_permitted by using pte_write() and pte_present() helpers
rather than raw bitwise testing _PAGE_WRITE and _PAGE_PRESENT bits.
The pte_present() change now returns true for PTEs which are
!_PAGE_PRESENT and _PAGE_INVALID, which is the combination used by
pmdp_invalidate() to synchronize access from lock-free lookups.
pte_access_permitted() is used by pmd_access_permitted(), so allowing
GUP lock free access to proceed with such PTEs breaks this
synchronisation.
This bug has been observed on a host using the hash page table MMU,
with random crashes and corruption in guests, usually together with
bad PMD messages in the host.
Fix this by adding an explicit check in pmd_access_permitted(), and
documenting the condition explicitly.
The pte_write() change should be okay, and would prevent GUP from
falling back to the slow path when encountering savedwrite PTEs, which
matches what x86 (that does not implement savedwrite) does.
Fixes: 1b2443a547 ("powerpc/book3s64: Avoid multiple endian conversion in pte helpers")
Cc: stable@vger.kernel.org # v4.20+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In the old days, _PAGE_EXEC didn't exist on 6xx aka book3s/32.
Therefore, allthough __mapin_ram_chunk() was already mapping kernel
text with PAGE_KERNEL_TEXT and the rest with PAGE_KERNEL, the entire
memory was executable. Part of the memory (first 512kbytes) was
mapped with BATs instead of page table, but it was also entirely
mapped as executable.
In commit 385e89d5b2 ("powerpc/mm: add exec protection on
powerpc 603"), we started adding exec protection to some 6xx, namely
the 603, for pages mapped via pagetables.
Then, in commit 63b2bc6195 ("powerpc/mm/32s: Use BATs for
STRICT_KERNEL_RWX"), the exec protection was extended to BAT mapped
memory, so that really only the kernel text could be executed.
The problem here is that kexec is based on copying some code into
upper part of memory then executing it from there in order to install
a fresh new kernel at its definitive location.
However, the code is position independant and first part of it is
just there to deactivate the MMU and jump to the second part. So it
is possible to run this first part inplace instead of running the
copy. Once the MMU is off, there is no protection anymore and the
second part of the code will just run as before.
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Fixes: 63b2bc6195 ("powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX")
Cc: stable@vger.kernel.org # v5.1+
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Borkmann says:
====================
Please refer to the patch 1/6 as the main patch with the details
on the current sendmsg hook API limitations and proposal to fix
it in order to work with basic applications like DNS. Remaining
patches are the usual uapi and tooling updates as well as test
cases. Thanks a lot!
v2 -> v3:
- Add attach types to test_section_names.c and libbpf (Andrey)
- Added given Acks, rest as-is
v1 -> v2:
- Split off uapi header sync and bpftool bits (Martin, Alexei)
- Added missing bpftool doc and bash completion as well
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add cgroup/recvmsg{4,6} to test_section_names as well. Test run output:
# ./test_section_names
libbpf: failed to guess program type based on ELF section name 'InvAliD'
libbpf: supported section(type) names are: [...]
libbpf: failed to guess attach type based on ELF section name 'InvAliD'
libbpf: attachable section(type) names are: [...]
libbpf: failed to guess program type based on ELF section name 'cgroup'
libbpf: supported section(type) names are: [...]
libbpf: failed to guess attach type based on ELF section name 'cgroup'
libbpf: attachable section(type) names are: [...]
Summary: 38 PASSED, 0 FAILED
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Trivial patch to bpftool in order to complete enabling attaching programs
to BPF_CGROUP_UDP{4,6}_RECVMSG.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Another trivial patch to libbpf in order to enable identifying and
attaching programs to BPF_CGROUP_UDP{4,6}_RECVMSG by section name.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Sync BPF uapi header in order to pull in BPF_CGROUP_UDP{4,6}_RECVMSG
attach types. This is done and preferred as an extra patch in order
to ease sync of libbpf.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Intention of cgroup bind/connect/sendmsg BPF hooks is to act transparently
to applications as also stated in original motivation in 7828f20e37 ("Merge
branch 'bpf-cgroup-bind-connect'"). When recently integrating the latter
two hooks into Cilium to enable host based load-balancing with Kubernetes,
I ran into the issue that pods couldn't start up as DNS got broken. Kubernetes
typically sets up DNS as a service and is thus subject to load-balancing.
Upon further debugging, it turns out that the cgroupv2 sendmsg BPF hooks API
is currently insufficient and thus not usable as-is for standard applications
shipped with most distros. To break down the issue we ran into with a simple
example:
# cat /etc/resolv.conf
nameserver 147.75.207.207
nameserver 147.75.207.208
For the purpose of a simple test, we set up above IPs as service IPs and
transparently redirect traffic to a different DNS backend server for that
node:
# cilium service list
ID Frontend Backend
1 147.75.207.207:53 1 => 8.8.8.8:53
2 147.75.207.208:53 1 => 8.8.8.8:53
The attached BPF program is basically selecting one of the backends if the
service IP/port matches on the cgroup hook. DNS breaks here, because the
hooks are not transparent enough to applications which have built-in msg_name
address checks:
# nslookup 1.1.1.1
;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.207#53
;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.208#53
;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.207#53
[...]
;; connection timed out; no servers could be reached
# dig 1.1.1.1
;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.207#53
;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.208#53
;; reply from unexpected source: 8.8.8.8#53, expected 147.75.207.207#53
[...]
; <<>> DiG 9.11.3-1ubuntu1.7-Ubuntu <<>> 1.1.1.1
;; global options: +cmd
;; connection timed out; no servers could be reached
For comparison, if none of the service IPs is used, and we tell nslookup
to use 8.8.8.8 directly it works just fine, of course:
# nslookup 1.1.1.1 8.8.8.8
1.1.1.1.in-addr.arpa name = one.one.one.one.
In order to fix this and thus act more transparent to the application,
this needs reverse translation on recvmsg() side. A minimal fix for this
API is to add similar recvmsg() hooks behind the BPF cgroups static key
such that the program can track state and replace the current sockaddr_in{,6}
with the original service IP. From BPF side, this basically tracks the
service tuple plus socket cookie in an LRU map where the reverse NAT can
then be retrieved via map value as one example. Side-note: the BPF cgroups
static key should be converted to a per-hook static key in future.
Same example after this fix:
# cilium service list
ID Frontend Backend
1 147.75.207.207:53 1 => 8.8.8.8:53
2 147.75.207.208:53 1 => 8.8.8.8:53
Lookups work fine now:
# nslookup 1.1.1.1
1.1.1.1.in-addr.arpa name = one.one.one.one.
Authoritative answers can be found from:
# dig 1.1.1.1
; <<>> DiG 9.11.3-1ubuntu1.7-Ubuntu <<>> 1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 51550
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;1.1.1.1. IN A
;; AUTHORITY SECTION:
. 23426 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2019052001 1800 900 604800 86400
;; Query time: 17 msec
;; SERVER: 147.75.207.207#53(147.75.207.207)
;; WHEN: Tue May 21 12:59:38 UTC 2019
;; MSG SIZE rcvd: 111
And from an actual packet level it shows that we're using the back end
server when talking via 147.75.207.20{7,8} front end:
# tcpdump -i any udp
[...]
12:59:52.698732 IP foo.42011 > google-public-dns-a.google.com.domain: 18803+ PTR? 1.1.1.1.in-addr.arpa. (38)
12:59:52.698735 IP foo.42011 > google-public-dns-a.google.com.domain: 18803+ PTR? 1.1.1.1.in-addr.arpa. (38)
12:59:52.701208 IP google-public-dns-a.google.com.domain > foo.42011: 18803 1/0/0 PTR one.one.one.one. (67)
12:59:52.701208 IP google-public-dns-a.google.com.domain > foo.42011: 18803 1/0/0 PTR one.one.one.one. (67)
[...]
In order to be flexible and to have same semantics as in sendmsg BPF
programs, we only allow return codes in [1,1] range. In the sendmsg case
the program is called if msg->msg_name is present which can be the case
in both, connected and unconnected UDP.
The former only relies on the sockaddr_in{,6} passed via connect(2) if
passed msg->msg_name was NULL. Therefore, on recvmsg side, we act in similar
way to call into the BPF program whenever a non-NULL msg->msg_name was
passed independent of sk->sk_state being TCP_ESTABLISHED or not. Note
that for TCP case, the msg->msg_name is ignored in the regular recvmsg
path and therefore not relevant.
For the case of ip{,v6}_recv_error() paths, picked up via MSG_ERRQUEUE,
the hook is not called. This is intentional as it aligns with the same
semantics as in case of TCP cgroup BPF hooks right now. This might be
better addressed in future through a different bpf_attach_type such
that this case can be distinguished from the regular recvmsg paths,
for example.
Fixes: 1cedee13d2 ("bpf: Hooks for sys_sendmsg")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Martynas Pumputis <m@lambda.lt>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
In following sequences, child devices created while removing mdev parent
device can be left out, or it may lead to race of removing half
initialized child mdev devices.
issue-1:
--------
cpu-0 cpu-1
----- -----
mdev_unregister_device()
device_for_each_child()
mdev_device_remove_cb()
mdev_device_remove()
create_store()
mdev_device_create() [...]
device_add()
parent_remove_sysfs_files()
/* BUG: device added by cpu-0
* whose parent is getting removed
* and it won't process this mdev.
*/
issue-2:
--------
Below crash is observed when user initiated remove is in progress
and mdev_unregister_driver() completes parent unregistration.
cpu-0 cpu-1
----- -----
remove_store()
mdev_device_remove()
active = false;
mdev_unregister_device()
parent device removed.
[...]
parents->ops->remove()
/*
* BUG: Accessing invalid parent.
*/
This is similar race like create() racing with mdev_unregister_device().
BUG: unable to handle kernel paging request at ffffffffc0585668
PGD e8f618067 P4D e8f618067 PUD e8f61a067 PMD 85adca067 PTE 0
Oops: 0000 [#1] SMP PTI
CPU: 41 PID: 37403 Comm: bash Kdump: loaded Not tainted 5.1.0-rc6-vdevbus+ #6
Hardware name: Supermicro SYS-6028U-TR4+/X10DRU-i+, BIOS 2.0b 08/09/2016
RIP: 0010:mdev_device_remove+0xfa/0x140 [mdev]
Call Trace:
remove_store+0x71/0x90 [mdev]
kernfs_fop_write+0x113/0x1a0
vfs_write+0xad/0x1b0
ksys_write+0x5a/0xe0
do_syscall_64+0x5a/0x210
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Therefore, mdev core is improved as below to overcome above issues.
Wait for any ongoing mdev create() and remove() to finish before
unregistering parent device.
This continues to allow multiple create and remove to progress in
parallel for different mdev devices as most common case.
At the same time guard parent removal while parent is being accessed by
create() and remove() callbacks.
create()/remove() and unregister_device() are synchronized by the rwsem.
Refactor device removal code to mdev_device_remove_common() to avoid
acquiring unreg_sem of the parent.
Fixes: 7b96953bc6 ("vfio: Mediated device Core driver")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
If device is removal is initiated by two threads as below, mdev core
attempts to create a syfs remove file on stale device.
During this flow, below [1] call trace is observed.
cpu-0 cpu-1
----- -----
mdev_unregister_device()
device_for_each_child
mdev_device_remove_cb
mdev_device_remove
user_syscall
remove_store()
mdev_device_remove()
[..]
unregister device();
/* not found in list or
* active=false.
*/
sysfs_create_file()
..Call trace
Now that mdev core follows correct device removal sequence of the linux
bus model, remove shouldn't fail in normal cases. If it fails, there is
no point of creating a stale file or checking for specific error status.
kernel: WARNING: CPU: 2 PID: 9348 at fs/sysfs/file.c:327
sysfs_create_file_ns+0x7f/0x90
kernel: CPU: 2 PID: 9348 Comm: bash Kdump: loaded Not tainted
5.1.0-rc6-vdevbus+ #6
kernel: Hardware name: Supermicro SYS-6028U-TR4+/X10DRU-i+, BIOS 2.0b
08/09/2016
kernel: RIP: 0010:sysfs_create_file_ns+0x7f/0x90
kernel: Call Trace:
kernel: remove_store+0xdc/0x100 [mdev]
kernel: kernfs_fop_write+0x113/0x1a0
kernel: vfs_write+0xad/0x1b0
kernel: ksys_write+0x5a/0xe0
kernel: do_syscall_64+0x5a/0x210
kernel: entry_SYSCALL_64_after_hwframe+0x49/0xbe
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
If we do a clk_get() for a clock that does not exists, we have
_ti_omap4_clkctrl_xlate() return uninitialized data if no match
is found. This can be seen in some cases with SLAB_DEBUG enabled:
Unable to handle kernel paging request at virtual address 5a5a5a5a
...
clk_hw_create_clk.part.33
sysc_notifier_call
notifier_call_chain
blocking_notifier_call_chain
device_add
Let's fix this by setting a found flag only when we find a match.
Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Fixes: 88a172526c ("clk: ti: add support for clkctrl clocks")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
the msg lock is taken for multi-link cases only but released
unconditionally, leading to an unlock balance warning for single-link usages
This patch fixes this.
=====================================
WARNING: bad unlock balance detected!
5.1.0-16506-gc1c383a6f0a2-dirty #1523 Tainted: G W
-------------------------------------
aplay/2954 is trying to release lock (&bus->msg_lock) at:
do_bank_switch+0x21c/0x480
but there are no more locks to release!
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Sanyog Kale <sanyog.r.kale@intel.com>
[vkoul: edited the change log as suggested by Pierre]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This patch addresses below two issues and prepares the code to address
3rd issue listed below.
1. mdev device is placed on the mdev bus before it is created in the
vendor driver. Once a device is placed on the mdev bus without creating
its supporting underlying vendor device, mdev driver's probe() gets
triggered. However there isn't a stable mdev available to work on.
create_store()
mdev_create_device()
device_register()
...
vfio_mdev_probe()
[...]
parent->ops->create()
vfio_ap_mdev_create()
mdev_set_drvdata(mdev, matrix_mdev);
/* Valid pointer set above */
Due to this way of initialization, mdev driver who wants to use the mdev,
doesn't have a valid mdev to work on.
2. Current creation sequence is,
parent->ops_create()
groups_register()
Remove sequence is,
parent->ops->remove()
groups_unregister()
However, remove sequence should be exact mirror of creation sequence.
Once this is achieved, all users of the mdev will be terminated first
before removing underlying vendor device.
(Follow standard linux driver model).
At that point vendor's remove() ops shouldn't fail because taking the
device off the bus should terminate any usage.
3. When remove operation fails, mdev sysfs removal attempts to add the
file back on already removed device. Following call trace [1] is observed.
[1] call trace:
kernel: WARNING: CPU: 2 PID: 9348 at fs/sysfs/file.c:327 sysfs_create_file_ns+0x7f/0x90
kernel: CPU: 2 PID: 9348 Comm: bash Kdump: loaded Not tainted 5.1.0-rc6-vdevbus+ #6
kernel: Hardware name: Supermicro SYS-6028U-TR4+/X10DRU-i+, BIOS 2.0b 08/09/2016
kernel: RIP: 0010:sysfs_create_file_ns+0x7f/0x90
kernel: Call Trace:
kernel: remove_store+0xdc/0x100 [mdev]
kernel: kernfs_fop_write+0x113/0x1a0
kernel: vfs_write+0xad/0x1b0
kernel: ksys_write+0x5a/0xe0
kernel: do_syscall_64+0x5a/0x210
kernel: entry_SYSCALL_64_after_hwframe+0x49/0xbe
Therefore, mdev core is improved in following ways.
1. Split the device registration/deregistration sequence so that some
things can be done between initialization of the device and hooking it
up to the bus respectively after deregistering it from the bus but
before giving up our final reference.
In particular, this means invoking the ->create() and ->remove()
callbacks in those new windows. This gives the vendor driver an
initialized mdev device to work with during creation.
At the same time, a bus driver who wish to bind to mdev driver also
gets initialized mdev device.
This follows standard Linux kernel bus and device model.
2. During remove flow, first remove the device from the bus. This
ensures that any bus specific devices are removed.
Once device is taken off the mdev bus, invoke remove() of mdev
from the vendor driver.
3. The driver core device model provides way to register and auto
unregister the device sysfs attribute groups at dev->groups.
Make use of dev->groups to let core create the groups and eliminate
code to avoid explicit groups creation and removal.
To ensure, that new sequence is solid, a below stack dump of a
process is taken who attempts to remove the device while device is in
use by vfio driver and user application.
This stack dump validates that vfio driver guards against such device
removal when device is in use.
cat /proc/21962/stack
[<0>] vfio_del_group_dev+0x216/0x3c0 [vfio]
[<0>] mdev_remove+0x21/0x40 [mdev]
[<0>] device_release_driver_internal+0xe8/0x1b0
[<0>] bus_remove_device+0xf9/0x170
[<0>] device_del+0x168/0x350
[<0>] mdev_device_remove_common+0x1d/0x50 [mdev]
[<0>] mdev_device_remove+0x8c/0xd0 [mdev]
[<0>] remove_store+0x71/0x90 [mdev]
[<0>] kernfs_fop_write+0x113/0x1a0
[<0>] vfs_write+0xad/0x1b0
[<0>] ksys_write+0x5a/0xe0
[<0>] do_syscall_64+0x5a/0x210
[<0>] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[<0>] 0xffffffffffffffff
This prepares the code to eliminate calling device_create_file() in
subsequent patch.
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
When we call snd_soc_component_set_jack(component, NULL, NULL) we should
set rt274->jack to passed jack, so when interrupt is triggered it calls
snd_soc_jack_report(rt274->jack, ...) with proper value.
This fixes problem in machine where in register, we call
snd_soc_register(component, &headset, NULL), which just calls
rt274_mic_detect via callback.
Now when machine driver is removed "headset" will be gone, so we
need to tell codec driver that it's gone with:
snd_soc_register(component, NULL, NULL), but we also need to be able
to handle NULL jack argument here gracefully.
If we don't set it to NULL, next time the rt274_irq runs it will call
snd_soc_jack_report with first argument being invalid pointer and there
will be Oops.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
During the integration of HDaudio support, we changed the way in which
we get hdev in snd_hdac_ext_bus_device_init() to use one preallocated
with devm_kzalloc(), however it still left kfree(hdev) in
snd_hdac_ext_bus_device_exit(). It leads to oopses when trying to
rmmod and modprobe. Fix it, by just removing kfree call.
SOF also uses some of the snd_hdac_ functions for HDAudio support but
allocated the memory with kzalloc. A matching fix is provided
separately to align all users of the snd_hdac_ library.
Fixes: 6298542fa3 ("ALSA: hdac: remove memory allocation from snd_hdac_ext_bus_device_init")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Kernel crashes when an ASoC component rebinding.
The dai_link->platforms has been reset to NULL by soc_cleanup_platform()
in soc_cleanup_card_resources() when un-registering component. However,
it has no chance to re-allocate the dai_link->platforms when registering
the component again.
Move the DAI pre-links initiation from snd_soc_register_card() to
snd_soc_instantiate_card() to make sure all DAI pre-links get initiated
when component rebinding.
As an example, by using the following commands:
- echo -n max98357a > /sys/bus/platform/drivers/max98357a/unbind
- echo -n max98357a > /sys/bus/platform/drivers/max98357a/bind
Got the error message:
"Unable to handle kernel NULL pointer dereference at virtual address".
The call trace:
snd_soc_is_matching_component+0x30/0x6c
soc_bind_dai_link+0x16c/0x240
snd_soc_bind_card+0x1e4/0xb10
snd_soc_add_component+0x270/0x300
snd_soc_register_component+0x54/0x6c
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The platform override code uses devm_ functions to allocate memory for
the new name but the card device is not initialized. Fix by moving the
init earlier.
Fixes: f403906da0 ("ASoC: Intel: cht_bsw_rt5672: platform name fixup support")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The platform override code uses devm_ functions to allocate memory for
the new name but the card device is not initialized. Fix by moving the
init earlier.
Fixes: 4506db8043 ("ASoC: Intel: cht_bsw_nau8824: platform name fixup support")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The platform override code uses devm_ functions to allocate memory for
the new name but the card device is not initialized. Fix by moving the
init earlier.
Fixes: e4bc6b1195 ("ASoC: Intel: bytcht_es8316: platform name fixup support")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The platform override code uses devm_ functions to allocate memory for
the new name but the card device is not initialized. Fix by moving the
init earlier.
Fixes: 7e7e24d7c7 ("ASoC: Intel: cht_bsw_max98090_ti: platform name fixup support")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().
This issue was detected by using the Coccinelle software.
Fixes: 408b56ca5c ("usb: gadget: udc: lpc32xx: simplify probe")
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
The patch 10209abe87
usb: dwc2: gadget: Add scatter-gather mode
avoided a NULL pointer dereference (hs_ep->req == NULL) by
calling dwc2_gadget_fill_nonisoc_xfer_dma_one() directly instead of through
the dwc2_gadget_config_nonisoc_xfer_ddma() wrapper, which unconditionally
dereferenced the said pointer.
However, this was based on an incorrect assumption that in the context of
dwc2_hsotg_program_zlp() the pointer is always NULL, which is not the case.
The result were SB CV MSC tests failing starting from Test Case 6.
Instead, this patch reverts to calling the wrapper and adds a check for
the pointer being NULL inside the wrapper.
Fixes: 10209abe87 (usb: dwc2: gadget: Add scatter-gather mode)
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
On ISOC OUT transfer completion, in none DDMA mode, set actual frame
number returning to function driver in usb_request.
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Gadget drivers may queue request in interrupt context. This would lead to
a descriptor allocation in that context. In that case we would hit
BUG_ON(in_interrupt()) in __get_vm_area_node.
Also remove the unnecessary cast.
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Tested-by: James Grant <jamesg@zaltys.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
There is no deallocation of fusb300->ep[i] elements, allocated at
fusb300_probe.
The patch adds deallocation of fusb300->ep array elements.
Signed-off-by: Young Xiao <92siuyang@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Insert a padding between data and the stored_xfer_buffer pointer to
ensure they are not on the same cache line.
Otherwise, the stored_xfer_buffer gets corrupted for IN URBs on
non-cache-coherent systems. (In my case: Lantiq xRX200 MIPS)
Fixes: 3bc04e28a0 ("usb: dwc2: host: Get aligned DMA in a more supported way")
Fixes: 56406e017a ("usb: dwc2: Fix DMA alignment to start at allocated boundary")
Cc: <stable@vger.kernel.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
In commit abb621844f ("usb: ch9: make usb_endpoint_maxp() return
only packet size") the API to usb_endpoint_maxp() changed. It used to
just return wMaxPacketSize but after that commit it returned
wMaxPacketSize with the high bits (the multiplier) masked off. If you
wanted to get the multiplier it was now up to your code to call the
new usb_endpoint_maxp_mult() which was introduced in
commit 541b6fe630 ("usb: add helper to extract bits 12:11 of
wMaxPacketSize").
Prior to the API change most host drivers were updated, but no update
was made to dwc2. Presumably it was assumed that dwc2 was too
simplistic to use the multiplier and thus just didn't support a
certain class of USB devices. However, it turns out that dwc2 did use
the multiplier and many devices using it were working quite nicely.
That means that many USB devices have been broken since the API
change. One such device is a Logitech HD Pro Webcam C920.
Specifically, though dwc2 didn't directly call usb_endpoint_maxp(), it
did call usb_maxpacket() which in turn called usb_endpoint_maxp().
Let's update dwc2 to work properly with the new API.
Fixes: abb621844f ("usb: ch9: make usb_endpoint_maxp() return only packet size")
Cc: stable@vger.kernel.org
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
In commit 9a5ab8bf1d ("tools: bpftool: turn err() and info() macros
into functions") one case of error reporting was special cased, so it
could report a lookup error for a specific key when dumping the map
element. What the code forgot to do is to wrap the key and value keys
into a JSON object, so an example output of pretty JSON dump of a
sockhash map (which does not support looking up its values) is:
[
"key": ["0x0a","0x41","0x00","0x02","0x1f","0x78","0x00","0x00"
],
"value": {
"error": "Operation not supported"
},
"key": ["0x0a","0x41","0x00","0x02","0x1f","0x78","0x00","0x01"
],
"value": {
"error": "Operation not supported"
}
]
Note the key-value pairs inside the toplevel array. They should be
wrapped inside a JSON object, otherwise it is an invalid JSON. This
commit fixes this, so the output now is:
[{
"key": ["0x0a","0x41","0x00","0x02","0x1f","0x78","0x00","0x00"
],
"value": {
"error": "Operation not supported"
}
},{
"key": ["0x0a","0x41","0x00","0x02","0x1f","0x78","0x00","0x01"
],
"value": {
"error": "Operation not supported"
}
}
]
Fixes: 9a5ab8bf1d ("tools: bpftool: turn err() and info() macros into functions")
Cc: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Krzesimir Nowak <krzesimir@kinvolk.io>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
b636fd38dc ("cgroup: Implement css_task_iter_skip()") introduced
css_task_iter_skip() which is used to fix task iterations skipping
dying threadgroup leaders with live threads. Skipping is implemented
as a subportion of full advancing but css_task_iter_next() forgot to
fully advance a skipped iterator before determining the next task to
visit causing it to return invalid task pointers.
Fix it by making css_task_iter_next() fully advance the iterator if it
has been skipped since the previous iteration.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: syzbot
Link: http://lkml.kernel.org/r/00000000000097025d058a7fd785@google.com
Fixes: b636fd38dc ("cgroup: Implement css_task_iter_skip()")
While the gcc plugin for automatic stack variable initialization (i.e.
CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL) performs initialization with
0x00 bytes, the Clang automatic stack variable initialization (i.e.
CONFIG_INIT_STACK_ALL) uses various type-specific patterns that are
typically 0xAA. Therefore the stackinit selftest has been fixed to check
that bytes are no longer the test fill pattern of 0xFF (instead of looking
for bytes that have become 0x00). This retains the test coverage for the
0x00 pattern of the gcc plugin while adding coverage for the mostly 0xAA
pattern of Clang.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
On arm64 swiotlb is often (not always) already initialized by mem_init.
We don't want to initialize it twice, which would trigger a second
memory allocation. Moreover, the second memory pool is typically made of
high pages and ends up replacing the original memory pool of low pages.
As a side effect of this change, it is possible to have low pages in
swiotlb-xen on arm64.
Signed-off-by: Stefano Stabellini <stefanos@xilinx.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
When we run several VMs with PCI passthrough and GICv4 enabled, not
pinning vCPUs, we will occasionally see below warnings in dmesg:
ITS queue timeout (65440 65504 480)
ITS cmd its_build_vmovp_cmd failed
The reason for the above issue is that in BUILD_SINGLE_CMD_FUNC:
1. Post the write command.
2. Release the lock.
3. Start to read GITS_CREADR to get the reader pointer.
4. Compare the reader pointer to the target pointer.
5. If reader pointer does not reach the target, sleep 1us and continue
to try.
If we have several processors running the above concurrently, other
CPUs will post write commands while the 1st CPU is waiting the
completion. So we may have below issue:
phase 1:
---rd_idx-----from_idx-----to_idx--0---------
wait 1us:
phase 2:
--------------from_idx-----to_idx--0-rd_idx--
That is the rd_idx may fly ahead of to_idx, and if in case to_idx is
near the wrap point, rd_idx will wrap around. So the below condition
will not be met even after 1s:
if (from_idx < to_idx && rd_idx >= to_idx)
There is another theoretical issue. For a slow and busy ITS, the
initial rd_idx may fall behind from_idx a lot, just as below:
---rd_idx---0--from_idx-----to_idx-----------
This will cause the wait function exit too early.
Actually, it does not make much sense to use from_idx to judge if
to_idx is wrapped, but we need a initial rd_idx when lock is still
acquired, and it can be used to judge whether to_idx is wrapped and
the current rd_idx is wrapped.
We switch to a method of calculating the delta of two adjacent reads
and accumulating it to get the sum, so that we can get the real rd_idx
from the wrapped value even when the queue is almost full.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Heyi Guo <guoheyi@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The c52f nano receiver is a mouse only receiver. This means that it needs
some special handling compared to the c534 nano receiver:
1) It sends unnumbered mouse reports with a size of 8 bytes, so we need
to extend the unnumbered mouse report handling to support reports upto
8 bytes large
2) It mouse reports have the same high-resolution format as those from the
gaming mouse receivers
3) It can report consumer/multimedia buttons on its second interface, since
this is a mouse-only receiver these must be forwarded to the mouse child
device and not to the keyboard child-device (which will not exist)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203619
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
This reverts commit 4ceabaf790.
This patch and a025a18fe are giving extended timeouts
on boot for at least Ubuntu and openSUSE.
Revert them until we get a better fix.
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
This reverts commit 94a9992f7d.
The commit allows for more than 32 bits in hid_field_extract(),
but the return value is a 32 bits int.
So basically what this commit is doing is just silencing those
legitimate errors.
Revert to a previous situation in the hope that a proper
fix will be impletemented.
Fixes: 94a9992f7d ("HID: Increase maximum report size allowed by hid_field_extract()")
Cc: stable@vger.kernel.org # v5.1
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
test_lirc_mode2_user is included in test_lirc_mode2.sh test and should
not be run directly.
Fixes: 6bdd533cee ("bpf: add selftest for lirc_mode2 type program")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This patch fixes the chipmunk-like voice that manifets randomly when
using the integrated mic of the Logitech Webcam HD C270.
The issue was solved initially for this device by commit 2394d67e44
("USB: add RESET_RESUME for webcams shown to be quirky") but it was then
reintroduced by e387ef5c47 ("usb: Add USB_QUIRK_RESET_RESUME for all
Logitech UVC webcams"). This patch is to have the fix back.
Signed-off-by: Marco Zatta <marco@zatta.me>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The MIPS GIC contains a block of registers used to map local interrupts
to a particular CPU interrupt pin. Since these registers are found at a
consecutive range of addresses we access them using an index, via the
(read|write)_gic_v[lo]_map accessor functions. We currently use values
from enum mips_gic_local_interrupt as those indices.
Unfortunately whilst enum mips_gic_local_interrupt provides the correct
offsets for bits in the pending & mask registers, the ordering of the
map registers is subtly different... Compared with the ordering of
pending & mask bits, the map registers move the FDC from the end of the
list to index 3 after the timer interrupt. As a result the performance
counter & software interrupts are therefore at indices 4-6 rather than
indices 3-5.
Notably this causes problems with performance counter interrupts being
incorrectly mapped on some systems, and presumably will also cause
problems for FDC interrupts.
Introduce a function to map from enum mips_gic_local_interrupt to the
index of the corresponding map register, and use it to ensure we access
the map registers for the correct interrupts.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: a0dc5cb5e3 ("irqchip: mips-gic: Simplify gic_local_irq_domain_map()")
Fixes: da61fcf9d6 ("irqchip: mips-gic: Use irq_cpu_online to (un)mask all-VP(E) IRQs")
Reported-and-tested-by: Archer Yan <ayan@wavecomp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
irq_create_fwspec_mapping() can fail, returning 0 as parent_virq. In this
case vint_desc is going to be NULL in ti_sci_inta_alloc_irq() which will
cause NULL pointer dereference.
Also note that irq_create_fwspec_mapping() returns 'unsigned int' so the
check '<=' was wrong.
Use -EINVAL if irq_create_fwspec_mapping() returned with 0.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The csky,mpintc could deliver a external irq to one cpu or all cpus, but
it couldn't deliver a external irq to a group of cpus with cpu_mask. So
we only use auto deliver mode when affinity mask_val is equal to
cpu_present_mask.
There is no limitation for only two cpus in SMP system.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Whilst testing the capture functionality of the i2s on the newer
SoCs it was noticed that the recording was somewhat distorted.
This was due to the offset not being set correctly on the receiver
side.
Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The supported formats are S16_LE and S24_LE now. However, by datasheet
of max98090, S24_LE is only supported when it is in the right justified
mode. We should remove 24-bit format if it is not in that mode to avoid
triggering error.
Signed-off-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix gcc build error while CONFIG_I2C is not set
sound/soc/codecs/da7219.c:2640:1: warning: data definition has no type or storage class
module_i2c_driver(da7219_i2c_driver);
^~~~~~~~~~~~~~~~~
sound/soc/codecs/da7219.c:2640:1: error: type defaults to int in declaration of module_i2c_driver [-Werror=implicit-int]
sound/soc/codecs/da7219.c:2640:1: warning: parameter names (without types) in function declaration
sound/soc/codecs/da7219.c:2629:26: warning: da7219_i2c_driver defined but not used [-Wunused-variable]
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 6d817c0e9f ("ASoC: codecs: Add da7219 codec driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
while building without PCI:
sound/soc/sof/intel/hda.o: In function `hda_dsp_probe':
hda.c:(.text+0x79c): undefined reference to `pci_ioremap_bar'
hda.c:(.text+0x79c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `pci_ioremap_bar'
hda.c:(.text+0x7c4): undefined reference to `pci_ioremap_bar'
hda.c:(.text+0x7c4): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `pci_ioremap_bar'
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: e13ef82a9a ("ASoC: SOF: add COMPILE_TEST for PCI options")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
With commit 997dd96471 ("net: IP6 defrag: use rbtrees in
nf_conntrack_reasm.c"), nf_ct_frag6_reasm() is now called from
nf_ct_frag6_queue(). With this change, nf_ct_frag6_queue() can fail
after the skb has been added to the fragment queue and
nf_ct_frag6_gather() was adapted to handle this case.
But nf_ct_frag6_queue() can still fail before the fragment has been
queued. nf_ct_frag6_gather() can't handle this case anymore, because it
has no way to know if nf_ct_frag6_queue() queued the fragment before
failing. If it didn't, the skb is lost as the error code is overwritten
with -EINPROGRESS.
Fix this by setting -EINPROGRESS directly in nf_ct_frag6_queue(), so
that nf_ct_frag6_gather() can propagate the error as is.
Fixes: 997dd96471 ("net: IP6 defrag: use rbtrees in nf_conntrack_reasm.c")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(), which
needs ovl irq for drm_crtc_wait_one_vblank(), since after mtk_dsi_stop() is
called, ovl irq will be disabled. If drm_crtc_wait_one_vblank() is called
after last irq, it will timeout with this message: "vblank wait timed out
on crtc 0". This happens sometimes when turning off the screen.
In drm_atomic_helper.c#disable_outputs(),
the calling sequence when turning off the screen is:
1. mtk_dsi_encoder_disable()
--> mtk_output_dsi_disable()
--> mtk_dsi_stop(); /* sometimes make vblank timeout in
atomic_disable */
--> mtk_dsi_poweroff();
2. mtk_drm_crtc_atomic_disable()
--> drm_crtc_wait_one_vblank();
...
--> mtk_dsi_ddp_stop()
--> mtk_dsi_poweroff();
mtk_dsi_poweroff() has reference count design, change to make
mtk_dsi_stop() called in mtk_dsi_poweroff() when refcount is 0.
Fixes: 0707632b5b ("drm/mediatek: update DSI sub driver flow for sending commands to panel")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
num_pipes is used for mutex created in mtk_drm_crtc_create(). If we
don't clear num_pipes count, when rebinding driver, the count will
be accumulated. From mtk_disp_mutex_get(), there can only be at most
10 mutex id. Clear this number so it starts from 0 in every rebind.
Fixes: 119f517362 ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
shutdown all CRTC when unbinding drm driver.
Fixes: 119f517362 ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Unbinding components (i.e. mtk_dsi and mtk_disp_ovl/rdma/color) will
trigger master(mtk_drm)'s .unbind(), and currently mtk_drm's unbind
won't actually unbind components. During the next bind,
mtk_drm_kms_init() is called, and the components are added back.
.unbind() should call mtk_drm_kms_deinit() to unbind components.
And since component_master_del() in .remove() will trigger .unbind(),
which will also unregister device, it's fine to remove original functions
called here.
Fixes: 119f517362 ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
detatch panel in mtk_dsi_destroy_conn_enc(), since .bind will try to
attach it again.
Fixes: 2e54c14e31 ("drm/mediatek: Add DSI sub driver")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Martin Lau says:
====================
s series has fixes when running reuseport's bpf_prog for udp lookup.
If there is reuseport's bpf_prog, the common issue is the reuseport code
path expects skb->data pointing to the transport header (udphdr here).
A couple of commits broke this expectation. The issue is specific
to running bpf_prog, so bpf tag is used for this series.
Please refer to the individual commit message for details.
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
When the commit a6024562ff ("udp: Add GRO functions to UDP socket")
added udp[46]_lib_lookup_skb to the udp_gro code path, it broke
the reuseport_select_sock() assumption that skb->data is pointing
to the transport header.
This patch follows an earlier __udp6_lib_err() fix by
passing a NULL skb to avoid calling the reuseport's bpf_prog.
Fixes: a6024562ff ("udp: Add GRO functions to UDP socket")
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
__udp6_lib_err() may be called when handling icmpv6 message. For example,
the icmpv6 toobig(type=2). __udp6_lib_lookup() is then called
which may call reuseport_select_sock(). reuseport_select_sock() will
call into a bpf_prog (if there is one).
reuseport_select_sock() is expecting the skb->data pointing to the
transport header (udphdr in this case). For example, run_bpf_filter()
is pulling the transport header.
However, in the __udp6_lib_err() path, the skb->data is pointing to the
ipv6hdr instead of the udphdr.
One option is to pull and push the ipv6hdr in __udp6_lib_err().
Instead of doing this, this patch follows how the original
commit 538950a1b7 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
was done in IPv4, which has passed a NULL skb pointer to
reuseport_select_sock().
Fixes: 538950a1b7 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
Cc: Craig Gallek <kraig@google.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Craig Gallek <kraig@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The definitions for DSP oops structures were not aligned
correctly to current FW ABI version 3.6.0, leading to
invalid data being printed out to debug logs. Fix the structs
and update related platform code accordingly.
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
HDA_DEV_ASOC type codec device refcounts are managed differently
from HDA_DEV_LEGACY devices. The refcount is released explicitly
in snd_hdac_ext_bus_device_remove() for ASOC type devices.
So, remove the put_device() call in snd_hda_codec_dev_free()
for such devices to make the refcount balanced. This will prevent
the NULL pointer exception when the codec driver is released
after the card is freed.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Previously the structure used bitfields, which do not guarantee bit
ordering.
This change makes sure the order is clearly defined. It also renames
and repurposes the field for general use.
Signed-off-by: Slawomir Blauciak <slawomir.blauciak@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
We had a couple of misses with ABI changes, e.g. for Xtensa oops
information and the integration of sound trigger, before we set-up a
formal process to track evolutions.
With this patch, the SOF kernel patches are officially aligned with
the firmware 3.6 level. Changing this level has no impact on existing
users and is fully backwards-compatible.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
We missed these two definitions for GDB support and component
notifications, they are defined for the SOF firmware. Since they are
not used by the kernel so far, we can still add them without any ABI
change.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This tablet has an incorrect acpi identifier just like
Thinkpad10 tablet, which is why it is trying to load the RT5640 driver
instead of the RT5762 driver. The RT5640 driver, on the other hand, checks
the hardware ID, so no driver are loaded during boot. This fix resolves to
load the RT5672 driver on this tablet during boot. It also provides the
correct IO configuration, like the jack detect mode 3, for 1.8V pullup. I
would like to thank Pierre-Louis Bossart for helping with this patch.
Signed-off-by: Kovács Tamás <kepszlok@zohomail.eu>
Signed-off-by: Mark Brown <broonie@kernel.org>
In case memory resources for *fw* were successfully allocated,
release them before return.
Addresses-Coverity-ID: 1445499 ("Resource leak")
Fixes: 5c9ae5a875 ("usb: typec: ucsi: ccg: add firmware flashing support")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In a rare case, flush_tlb_kernel_range() could be called with a start
higher than the end.
In vm_remove_mappings(), in case page_address() returns 0 for all pages
(for example they were all in highmem), _vm_unmap_aliases() will be
called with start = ULONG_MAX, end = 0 and flush = 1.
If at the same time, the vmalloc purge operation is triggered by something
else while the current operation is between remove_vm_area() and
_vm_unmap_aliases(), then the vm mapping just removed will be already
purged. In this case the call of vm_unmap_aliases() may not find any other
mappings to flush and so end up flushing start = ULONG_MAX, end = 0. So
only set flush = true if we find something in the direct mapping that we
need to flush, and this way this can't happen.
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Meelis Roos <mroos@linux.ee>
Cc: Nadav Amit <namit@vmware.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 868b104d73 ("mm/vmalloc: Add flag for freeing of special permsissions")
Link: https://lkml.kernel.org/r/20190527211058.2729-3-rick.p.edgecombe@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
A simple test which just checks that inserting an entry into an empty
array succeeds. Try various different interesting indices.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
If the entry is deleted from the IDR between the call to
radix_tree_iter_find() and rcu_dereference_raw(), idr_get_next()
will return NULL, which will end the iteration prematurely. We should
instead continue to the next entry in the IDR. This only happens if the
iteration is protected by the RCU lock. Most IDR users use a spinlock
or semaphore to exclude simultaneous modifications. It was noticed once
the PID allocator was converted to use the IDR, as it uses the RCU lock,
but there may be other users elsewhere in the kernel.
We can't use the normal pattern of calling radix_tree_deref_retry()
(which catches both a retry entry in a leaf node and a node entry in
the root) as the IDR supports storing entries which are unaligned,
which will trigger an infinite loop if they are encountered. Instead,
we have to explicitly check whether the entry is a retry entry.
Fixes: 0a835c4f09 ("Reimplement IDR and IDA using the radix tree")
Reported-by: Brendan Gregg <bgregg@netflix.com>
Tested-by: Brendan Gregg <bgregg@netflix.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
A few places in mwifiex_uap_parse_tail_ies() perform memcpy()
unconditionally, which may lead to either buffer overflow or read over
boundary.
This patch addresses the issues by checking the read size and the
destination size at each place more properly. Along with the fixes,
the patch cleans up the code slightly by introducing a temporary
variable for the token size, and unifies the error path with the
standard goto statement.
Reported-by: huangwen <huangwen@venustech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The TLC_MNG_CONFIG sync cmd sent by the rs leads to a kernel warning
of sleeping while in rcu read-side critical section. The fix is to
change the command to be ASYNC (not blocking for the response anymore).
Signed-off-by: Lior Cohen <lior2.cohen@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In the error handling code of iwl_req_fw_callback(), iwl_dealloc_ucode()
is called to free data. In iwl_drv_stop(), iwl_dealloc_ucode() is called
again, which can cause double-free problems.
To fix this bug, the call to iwl_dealloc_ucode() in
iwl_req_fw_callback() is deleted.
This bug is found by a runtime fuzzing tool named FIZZER written by us.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Read fseq info from FW registers and print it upon fw assert.
The print is needed since the fseq version coming from the TLV might
not be the actual version that is used.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The driver attempts to clear persistence bit on any device familiy even
though only 9000 and 22000 families require it. Clear the bit only on
the relevant device families.
Each HW has different address to the write protection register. Use the
right register for each HW
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Fixes: 8954e1eb22 ("iwlwifi: trans: Clear persistence bit when starting the FW")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When we have a single image (same firmware image for INIT and
OPERATIONAL), we couldn't load the driver and register to the
stack if we had hardware RF-Kill asserted.
Fix this. This required a few changes:
1) Run the firmware as part of the INIT phase even if its
ucode_type is not IWL_UCODE_INIT.
2) Send the commands that are sent to the unified image in
INIT flow even in RF-Kill.
3) Don't ask the transport to stop the hardware upon RF-Kill
interrupt if the RF-Kill is asserted.
4) Allow the RF-Kill interrupt to take us out of L1A so that
the RF-Kill interrupt will be received by the host (to
enable the radio).
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This debugfs file is really old, and cannot work properly since
the unified image support. Rather than trying to make it work,
which is difficult now due to multiple images (LMAC/UMAC etc.)
just remove it - we no longer need it since we properly do a FW
coredump even in D3 cases.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In BPF, 32-bit ALU operations should zero-extend their results into
the 64-bit registers.
The current BPF JIT on RISC-V emits incorrect instructions that perform
sign extension only (e.g., addw, subw) on 32-bit add, sub, lsh, rsh,
arsh, and neg. This behavior diverges from the interpreter and JITs
for other architectures.
This patch fixes the bugs by performing zero extension on the destination
register of 32-bit ALU operations.
Fixes: 2353ecc6f9 ("bpf, riscv: add BPF JIT for RV64G")
Cc: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luke Nelson <luke.r.nels@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Björn Töpel <bjorn.topel@gmail.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Before this change, function load_sk_storage_btf expected that
libbpf__probe_raw_btf was returning a BTF descriptor, but in fact it was
returning an information about whether the probe was successful (0 or
1). load_sk_storage_btf was using that value as an argument of the close
function, which was resulting in closing stdout and thus terminating the
process which called that function.
That bug was visible in bpftool. `bpftool feature` subcommand was always
exiting too early (because of closed stdout) and it didn't display all
requested probes. `bpftool -j feature` or `bpftool -p feature` were not
returning a valid json object.
This change renames the libbpf__probe_raw_btf function to
libbpf__load_raw_btf, which now returns a BTF descriptor, as expected in
load_sk_storage_btf.
v2:
- Fix typo in the commit message.
v3:
- Simplify BTF descriptor handling in bpf_object__probe_btf_* functions.
- Rename libbpf__probe_raw_btf function to libbpf__load_raw_btf and
return a BTF descriptor.
v4:
- Fix typo in the commit message.
Fixes: d7c4b3980c ("libbpf: detect supported kernel BTF features and sanitize BTF")
Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Since recent high resolution scrolling changes the A4Tech driver must
check for the "REL_WHEEL_HI_RES" usage code.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203369
Fixes: 2dc702c991 ("HID: input: use the Resolution Multiplier for high-resolution scrolling")
Signed-off-by: Błażej Szczygieł <spaz16@wp.pl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch only adds a MODULE_DESCRIPTION statement to the driver.
This change is only cosmetic, so there should be no runtime impact.
Signed-off-by: Joseph Salisbury <joseph.salisbury@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Since a283348629 ("page cache: Finish XArray conversion"), on most
major Linux distributions, the page cache doesn't correctly transition
when the hot data set is changing, and leaves the new pages thrashing
indefinitely instead of kicking out the cold ones.
On a freshly booted, freshly ssh'd into virtual machine with 1G RAM
running stock Arch Linux:
[root@ham ~]# ./reclaimtest.sh
+ dd of=workingset-a bs=1M count=0 seek=600
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ ./mincore workingset-a
153600/153600 workingset-a
+ dd of=workingset-b bs=1M count=0 seek=600
+ cat workingset-b
+ cat workingset-b
+ cat workingset-b
+ cat workingset-b
+ ./mincore workingset-a workingset-b
104029/153600 workingset-a
120086/153600 workingset-b
+ cat workingset-b
+ cat workingset-b
+ cat workingset-b
+ cat workingset-b
+ ./mincore workingset-a workingset-b
104029/153600 workingset-a
120268/153600 workingset-b
workingset-b is a 600M file on a 1G host that is otherwise entirely
idle. No matter how often it's being accessed, it won't get cached.
While investigating, I noticed that the non-resident information gets
aggressively reclaimed - /proc/vmstat::workingset_nodereclaim. This is
a problem because a workingset transition like this relies on the
non-resident information tracked in the page cache tree of evicted
file ranges: when the cache faults are refaults of recently evicted
cache, we challenge the existing active set, and that allows a new
workingset to establish itself.
Tracing the shrinker that maintains this memory revealed that all page
cache tree nodes were allocated to the root cgroup. This is a problem,
because 1) the shrinker sizes the amount of non-resident information
it keeps to the size of the cgroup's other memory and 2) on most major
Linux distributions, only kernel threads live in the root cgroup and
everything else gets put into services or session groups:
[root@ham ~]# cat /proc/self/cgroup
0::/user.slice/user-0.slice/session-c1.scope
As a result, we basically maintain no non-resident information for the
workloads running on the system, thus breaking the caching algorithm.
Looking through the code, I found the culprit in the above-mentioned
patch: when switching from the radix tree to xarray, it dropped the
__GFP_ACCOUNT flag from the tree node allocations - the flag that
makes sure the allocated memory gets charged to and tracked by the
cgroup of the calling process - in this case, the one doing the fault.
To fix this, allow xarray users to specify per-tree flag that makes
xarray allocate nodes using __GFP_ACCOUNT. Then restore the page cache
tree annotation to request such cgroup tracking for the cache nodes.
With this patch applied, the page cache correctly converges on new
workingsets again after just a few iterations:
[root@ham ~]# ./reclaimtest.sh
+ dd of=workingset-a bs=1M count=0 seek=600
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ cat workingset-a
+ ./mincore workingset-a
153600/153600 workingset-a
+ dd of=workingset-b bs=1M count=0 seek=600
+ cat workingset-b
+ ./mincore workingset-a workingset-b
124607/153600 workingset-a
87876/153600 workingset-b
+ cat workingset-b
+ ./mincore workingset-a workingset-b
81313/153600 workingset-a
133321/153600 workingset-b
+ cat workingset-b
+ ./mincore workingset-a workingset-b
63036/153600 workingset-a
153600/153600 workingset-b
Cc: stable@vger.kernel.org # 4.20+
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
CSS_TASK_ITER_PROCS currently iterates live group leaders; however,
this means that a process with dying leader and live threads will be
skipped. IOW, cgroup.procs might be empty while cgroup.threads isn't,
which is confusing to say the least.
Fix it by making cset track dying tasks and include dying leaders with
live threads in PROCS iteration.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Topi Miettinen <toiwoton@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
When a task is moved out of a cset, task iterators pointing to the
task are advanced using the normal css_task_iter_advance() call. This
is fine but we'll be tracking dying tasks on csets and thus moving
tasks from cset->tasks to (to be added) cset->dying_tasks. When we
remove a task from cset->tasks, if we advance the iterators, they may
move over to the next cset before we had the chance to add the task
back on the dying list, which can allow the task to escape iteration.
This patch separates out skipping from advancing. Skipping only moves
the affected iterators to the next pointer rather than fully advancing
it and the following advancing will recognize that the cursor has
already been moved forward and do the rest of advancing. This ensures
that when a task moves from one list to another in its cset, as long
as it moves in the right direction, it's always visible to iteration.
This doesn't cause any visible behavior changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
cgroup_release() calls cgroup_subsys->release() which is used by the
pids controller to uncharge its pid. We want to use it to manage
iteration of dying tasks which requires putting it before
__unhash_process(). Move cgroup_release() above __exit_signal().
While this makes it uncharge before the pid is freed, pid is RCU freed
anyway and the window is very narrow.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Use MODULE_ALIAS_NFT_EXPR() to make happy the inet family with nat.
Fixes: 63ce3940f3 ("netfilter: nft_redir: add inet support")
Fixes: 071657d2c3 ("netfilter: nft_masq: add inet support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
ALC255 and ALC256 were some difference for hidden register.
This update was suitable for ALC256.
Fixes: e69e7e03ed ("ALSA: hda/realtek - ALC256 speaker noise issue")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Add another example to clarify that HugePages smaller than 1MB will
be displayed using "KB", with an uppercased K (eg. 20KB), and not the
normal SI prefix kilo (small k).
Because of a misunderstanding/copy-paste error inside runc
(see https://github.com/opencontainers/runc/pull/2065), it tried
accessing the cgroup control file of a 64kB HugePage using
"hugetlb.64kB._____" instead of the correct "hugetlb.64KB._____".
Adding a new example will make it clear how sizes smaller than 1MB are
handled.
Signed-off-by: Odin Ugedal <odin@ugedal.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Recently syzbot in conjunction with KMSAN reported that
ptrace_peek_siginfo can copy an uninitialized siginfo to userspace.
Inspecting ptrace_peek_siginfo confirms this.
The problem is that off when initialized from args.off can be
initialized to a negaive value. At which point the "if (off >= 0)"
test to see if off became negative fails because off started off
negative.
Prevent the core problem by adding a variable found that is only true
if a siginfo is found and copied to a temporary in preparation for
being copied to userspace.
Prevent args.off from being truncated when being assigned to off by
testing that off is <= the maximum possible value of off. Convert off
to an unsigned long so that we should not have to truncate args.off,
we have well defined overflow behavior so if we add another check we
won't risk fighting undefined compiler behavior, and so that we have a
type whose maximum value is easy to test for.
Cc: Andrei Vagin <avagin@gmail.com>
Cc: stable@vger.kernel.org
Reported-by: syzbot+0d602a1b0d8c95bdf299@syzkaller.appspotmail.com
Fixes: 84c751bd4a ("ptrace: add ability to retrieve signals without removing from a queue (v4)")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Currently mwifiex_update_bss_desc_with_ie() implicitly assumes that
the source descriptor entries contain the enough size for each type
and performs copying without checking the source size. This may lead
to read over boundary.
Fix this by putting the source size check in appropriate places.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
mwifiex_update_bss_desc_with_ie() calls memcpy() unconditionally in
a couple places without checking the destination size. Since the
source is given from user-space, this may trigger a heap buffer
overflow.
Fix it by putting the length check before performing memcpy().
This fix addresses CVE-2019-3846.
Reported-by: huangwen <huangwen@venustech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
There is no CLKSEL for timer12 on dra7 unlike for timer1. This
causes issues on booting the device that Tomi noticed if
DEBUG_SLAB is enabled and the clkctrl clock does not properly
handle non-existing clock. Let's drop the bogus CLKSEL clock,
the clkctrl clock handling gets fixed separately.
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Fixes: 4ed0dfe3cf ("ARM: dts: dra7: Move l4 child devices to probe them with ti-sysc")
Signed-off-by: Tony Lindgren <tony@atomide.com>
A PF_EXITING task can stay associated with an offline css. If such
task calls task_get_css(), it can get stuck indefinitely. This can be
triggered by BSD process accounting which writes to a file with
PF_EXITING set when racing against memcg disable as in the backtrace
at the end.
After this change, task_get_css() may return a css which was already
offline when the function was called. None of the existing users are
affected by this change.
INFO: rcu_sched self-detected stall on CPU
INFO: rcu_sched detected stalls on CPUs/tasks:
...
NMI backtrace for cpu 0
...
Call Trace:
<IRQ>
dump_stack+0x46/0x68
nmi_cpu_backtrace.cold.2+0x13/0x57
nmi_trigger_cpumask_backtrace+0xba/0xca
rcu_dump_cpu_stacks+0x9e/0xce
rcu_check_callbacks.cold.74+0x2af/0x433
update_process_times+0x28/0x60
tick_sched_timer+0x34/0x70
__hrtimer_run_queues+0xee/0x250
hrtimer_interrupt+0xf4/0x210
smp_apic_timer_interrupt+0x56/0x110
apic_timer_interrupt+0xf/0x20
</IRQ>
RIP: 0010:balance_dirty_pages_ratelimited+0x28f/0x3d0
...
btrfs_file_write_iter+0x31b/0x563
__vfs_write+0xfa/0x140
__kernel_write+0x4f/0x100
do_acct_process+0x495/0x580
acct_process+0xb9/0xdb
do_exit+0x748/0xa00
do_group_exit+0x3a/0xa0
get_signal+0x254/0x560
do_signal+0x23/0x5c0
exit_to_usermode_loop+0x5d/0xa0
prepare_exit_to_usermode+0x53/0x80
retint_user+0x8/0x8
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org # v4.2+
Fixes: ec438699a9 ("cgroup, block: implement task_get_css() and use it in bio_associate_current()")
Allwinner DAC seems to have a delay in the Speaker audio routing. When
playing a sound for the first time, the sound gets chopped. On a second
play the sound is played correctly. After some time (~5s) the issue gets
back.
This commit seems to be fixing the same issue as bf14da7 but
for another codepath.
This is the DTS that was used to debug the problem.
&codec {
allwinner,pa-gpios = <&r_pio 0 11 GPIO_ACTIVE_HIGH>; /* PL11 */
allwinner,audio-routing =
"Speaker", "LINEOUT";
status = "okay";
}
Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Add missing header file following compiler warning:
prog_tests/flow_dissector.c: In function ‘tx_tap’:
prog_tests/flow_dissector.c:175:9: warning: implicit declaration of function ‘writev’; did you mean ‘write’? [-Wimplicit-function-declaration]
return writev(fd, iov, ARRAY_SIZE(iov));
^~~~~~
write
Fixes: 0905beec9f ("selftests/bpf: run flow dissector tests in skb-less mode")
Signed-off-by: Alakesh Haloi <alakesh.haloi@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jiong Wang says:
====================
JIT back-ends need to guarantee high 32-bit cleared whenever one eBPF insn
write low 32-bit sub-register only. It is possible that some JIT back-ends
have failed doing this and are silently generating wrong image.
This set completes the unit tests, so bug on this could be exposed in JITs.
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
eBPF ISA specification requires high 32-bit cleared when only low 32-bit
sub-register is written. JIT back-ends must guarantee this semantics when
doing code-gen.
This patch complete unit tests for all of those insns that could be visible
to JIT back-ends and defining sub-registers, if JIT back-ends failed to
guarantee the mentioned semantics, these unit tests will fail.
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
It is better to centralize all sub-register zero extension checks into an
independent file.
This patch takes the first step to move existing sub-register zero
extension checks into subreg.c.
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
For old commands, it's fine to have .type = NLA_UNSPEC and it
behaves the same as NLA_MIN_LEN. However, for new commands with
strict validation this is no longer true, and for policy export
to userspace these are also ignored.
Fix up the remaining ones that don't have a type.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
freeing peer keys after vif down is resulting in peer key uninstall
to fail due to interface lookup failure. so fix that.
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
display hardware clock will not unprepare when
crtc is disable, until crtc is destroyed.
with this patch, hard clock will disable and unprepare
at the same time.
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
re-write hda_init_caps and remove the HDA reset, clean HDA
streams and clear interrupt steps in hda_dsp_probe so the
HDA init steps will not be called twice if the
CONFIG_SND_SOC_SOF_HDA is true.
Fixes: 8a300c8fb1 ("ASoC: SOF: Intel: Add HDA controller for Intel DSP")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Zhu Yingjiang <yingjiang.zhu@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently on all supported platforms the IPC IRQ thread first signals
the sender when an IPC response is received from the DSP, then unmasks
the IPC interrupt. Those actions are performed without holding any
locks, so the thread can be interrupted between them. IPC timeouts
have been observed in such scenarios: if the sender is woken up and it
proceeds with sending the next message without unmasking the IPC
interrupt, it can miss the next response. This patch takes a spin-lock
to prevent the IRQ thread from being preempted at that point. It also
makes sure, that the next IPC transmission by the host cannot take
place before the IRQ thread has finished updating all the required IPC
registers.
Fixes: 53e0c72d98 ("ASoC: SOF: Add support for IPC IO between DSP and Host")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The size for the bytes kcontrol should include the abi header, that is,
data->size + sizeof(*data), it is also aligned with get method after
this change.
Fixes: c3078f5397 ("ASoC: SOF: Add Sound Open Firmware KControl support")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
If the SOF hw_params() fail, typically with an IPC error thrown by the
firmware, the period_elapsed workqueue is not initialized, but we
still cancel it in hw_free(), which results in a kernel warning.
Move the initialization to the .open callback. Tested on Broadwell
(Samus) and IceLake.
Fixes: e2803e610a ("ASoC: SOF: PCM: add period_elapsed work to fix
race condition in interrupt context")
GitHub issue: https://github.com/thesofproject/linux/issues/932
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
sof_pcm_hw_params() can only be called once to setup the FW hw_params.
So after calling sof_pcm_hw_params(), hw_params_upon_resume flag must
be cleared to avoid multiple invoking sof_pcm_hw_params() by prepare.
For example, after resume, there is an xrun happened, prepare() will
be called. As the hw_params_upon_resume flag is not cleared,
sof_pcm_hw_params() will be called and this will cause IPC timeout.
This patch fixes such issues.
Fixes: 868bd00f49 ("ASoC: SOF: Add PCM operations support")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
In some configurations, it's a requirement to split the probe in two,
with a second part handled in a workqueue (e.g. for HDMI support
which depends on the DRM modules).
SOF already handles these configurations but the error flow is
incorrect. When an error occurs in the workqueue, the probe has
technically already completed. If we release the resources on errors,
this generates kernel oops/use-after-free when the resources are
released a second time on module removal.
GitHub issue: https://github.com/thesofproject/linux/issues/945
Fixes: c16211d622 ("ASoC: SOF: Add Sound Open Firmware driver core")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
snd_sof_remove() disables the DSP and unmaps the DSP BAR.
Removing topology after disabling the DSP results in a
kernel panic while unloading the pipeline widget. This is
because pipeline widget unload attempts to power down
the core it is scheduled on by accessing the DSP registers.
So, the suggested fix here is to unregister the machine driver
first to remove the topology and then disable the DSP
to avoid the situation described above.
Note that the kernel panic only happens in cases where the
HDaudio link is not managed by the hdac library,
e.g. no codec or when HDMI is not supported.
When the hdac library is used, snd_sof_remove() calls
snd_hdac_ext_bus_device_remove() to remove the codec which
unregisters the component driver thereby also removing the
topology before the DSP is disabled.
Fixes: c16211d622 ("ASoC: SOF: Add Sound Open Firmware driver core")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
commit 53e947a0e1 ("ASoC: soc-core: merge card resources cleanup
method") merged cleanup method of snd_soc_instantiate_card() and
soc_cleanup_card_resources().
But, after this commit, if user uses unbind/bind to Component factor
drivers, Kernel might indicates refcount error at
soc_cleanup_card_resources().
The 1st reason is card->snd_card is still exist even though
snd_card_free() was called, but it is already cleaned.
We need to set NULL to it.
2nd is card->dapm and card create debugfs, but its dentry is still
exist even though it was removed. We need to set NULL to it.
Fixes: 53e947a0e1 ("ASoC: soc-core: merge card resources cleanup method")
Cc: stable@vger.kernel.org # for v5.1
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix sparse warnings:
drivers/net/wireless/realtek/rtw88/phy.c:851:4: warning: symbol 'rtw_cck_size' was not declared. Should it be static?
drivers/net/wireless/realtek/rtw88/phy.c:852:4: warning: symbol 'rtw_ofdm_size' was not declared. Should it be static?
drivers/net/wireless/realtek/rtw88/phy.c:853:4: warning: symbol 'rtw_ht_1s_size' was not declared. Should it be static?
drivers/net/wireless/realtek/rtw88/phy.c:854:4: warning: symbol 'rtw_ht_2s_size' was not declared. Should it be static?
drivers/net/wireless/realtek/rtw88/phy.c:855:4: warning: symbol 'rtw_vht_1s_size' was not declared. Should it be static?
drivers/net/wireless/realtek/rtw88/phy.c:856:4: warning: symbol 'rtw_vht_2s_size' was not declared. Should it be static?
drivers/net/wireless/realtek/rtw88/fw.c:11:6: warning: symbol 'rtw_fw_c2h_cmd_handle_ext' was not declared. Should it be static?
drivers/net/wireless/realtek/rtw88/fw.c:50:6: warning: symbol 'rtw_fw_send_h2c_command' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When building with -Wuninitialized, Clang warns:
drivers/net/wireless/rsi/rsi_91x_sdio.c:940:43: warning: variable 'data'
is uninitialized when used here [-Wuninitialized]
put_unaligned_le32(TA_HOLD_THREAD_VALUE, data);
^~~~
drivers/net/wireless/rsi/rsi_91x_sdio.c:930:10: note: initialize the
variable 'data' to silence this warning
u8 *data;
^
= NULL
1 warning generated.
Using Clang's suggestion of initializing data to NULL wouldn't work out
because data will be dereferenced by put_unaligned_le32. Use kzalloc to
properly initialize data, which matches a couple of other places in this
driver.
Fixes: e5a1ecc97e ("rsi: add firmware loading for 9116 device")
Link: https://github.com/ClangBuiltLinux/linux/issues/464
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The new rssi_level should be stored in si, otherwise the rssi_level will
never be updated and get a wrong RA mask, which is calculated by the
rssi level
If a wrong RA mask is chosen, the firmware will pick some *bad rates*.
The most hurtful scene will be in *noisy environment*, such as office or
public area with many APs and users.
The latency would be high and the overall throughput would be only half
or less.
Tested in 2.4G in office area, with this patch the throughput increased
from such as "1x Mbps -> 4x Mbps".
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
My compiler complains about:
drivers/net/wireless/realtek/rtw88/phy.c: In function ‘rtw_phy_rf_power_2_rssi’:
drivers/net/wireless/realtek/rtw88/phy.c:430:26: warning: array subscript is above array bounds [-Warray-bounds]
linear = db_invert_table[i][j];
According to comment power_db should be in range 1 ~ 96 .
To fix add check for boundaries before access the array.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
ifmsh->csa is an RCU-protected pointer. The writer context
in ieee80211_mesh_finish_csa() is already mutually
exclusive with wdev->sdata.mtx, but the RCU checker did
not know this. Use rcu_dereference_protected() to avoid a
warning.
fixes the following warning:
[ 12.519089] =============================
[ 12.520042] WARNING: suspicious RCU usage
[ 12.520652] 5.1.0-rc7-wt+ #16 Tainted: G W
[ 12.521409] -----------------------------
[ 12.521972] net/mac80211/mesh.c:1223 suspicious rcu_dereference_check() usage!
[ 12.522928] other info that might help us debug this:
[ 12.523984] rcu_scheduler_active = 2, debug_locks = 1
[ 12.524855] 5 locks held by kworker/u8:2/152:
[ 12.525438] #0: 00000000057be08c ((wq_completion)phy0){+.+.}, at: process_one_work+0x1a2/0x620
[ 12.526607] #1: 0000000059c6b07a ((work_completion)(&sdata->csa_finalize_work)){+.+.}, at: process_one_work+0x1a2/0x620
[ 12.528001] #2: 00000000f184ba7d (&wdev->mtx){+.+.}, at: ieee80211_csa_finalize_work+0x2f/0x90
[ 12.529116] #3: 00000000831a1f54 (&local->mtx){+.+.}, at: ieee80211_csa_finalize_work+0x47/0x90
[ 12.530233] #4: 00000000fd06f988 (&local->chanctx_mtx){+.+.}, at: ieee80211_csa_finalize_work+0x51/0x90
Signed-off-by: Thomas Pedersen <thomas@eero.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When dumping stations, memory allocated for station_info's
pertid member will leak if the nl80211 header cannot be added to
the sk_buff due to insufficient tail room.
I noticed this leak in the kmalloc-2048 cache.
Cc: stable@vger.kernel.org
Fixes: 8689c051a2 ("cfg80211: dynamically allocate per-tid stats for station info")
Signed-off-by: Andy Strohman <andy@uplevelsystems.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
ieee80211_aes_gmac() uses the mic argument directly in sg_set_buf() and
that does not allow use of stack memory (e.g., BUG_ON() is hit in
sg_set_buf() with CONFIG_DEBUG_SG). BIP GMAC TX side is fine for this
since it can use the skb data buffer, but the RX side was using a stack
variable for deriving the local MIC value to compare against the
received one.
Fix this by allocating heap memory for the mic buffer.
This was found with hwsim test case ap_cipher_bip_gmac_128 hitting that
BUG_ON() and kernel panic.
Cc: stable@vger.kernel.org
Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Set the page walk snoop to the right bit, otherwise the domain
id field will be overlapped.
Reported-by: Dave Jiang <dave.jiang@intel.com>
Fixes: 6f7db75e1c ("iommu/vt-d: Add second level page table interface")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Lockdep debug reported lock inversion related with the iommu code
caused by dmar_insert_one_dev_info() grabbing the iommu->lock and
the device_domain_lock out of order versus the code path in
iommu_flush_dev_iotlb(). Expanding the scope of the iommu->lock and
reversing the order of lock acquisition fixes the issue.
[ 76.238180] dsa_bus wq0.0: dsa wq wq0.0 disabled
[ 76.248706]
[ 76.250486] ========================================================
[ 76.257113] WARNING: possible irq lock inversion dependency detected
[ 76.263736] 5.1.0-rc5+ #162 Not tainted
[ 76.267854] --------------------------------------------------------
[ 76.274485] systemd-journal/521 just changed the state of lock:
[ 76.280685] 0000000055b330f5 (device_domain_lock){..-.}, at: iommu_flush_dev_iotlb.part.63+0x29/0x90
[ 76.290099] but this lock took another, SOFTIRQ-unsafe lock in the past:
[ 76.297093] (&(&iommu->lock)->rlock){+.+.}
[ 76.297094]
[ 76.297094]
[ 76.297094] and interrupts could create inverse lock ordering between them.
[ 76.297094]
[ 76.314257]
[ 76.314257] other info that might help us debug this:
[ 76.321448] Possible interrupt unsafe locking scenario:
[ 76.321448]
[ 76.328907] CPU0 CPU1
[ 76.333777] ---- ----
[ 76.338642] lock(&(&iommu->lock)->rlock);
[ 76.343165] local_irq_disable();
[ 76.349422] lock(device_domain_lock);
[ 76.356116] lock(&(&iommu->lock)->rlock);
[ 76.363154] <Interrupt>
[ 76.366134] lock(device_domain_lock);
[ 76.370548]
[ 76.370548] *** DEADLOCK ***
Fixes: 745f2586e7 ("iommu/vt-d: Simplify function get_domain_for_dev()")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
So that all types are printed in the same format.
Fixes: c52c72d3de ("iommu: Add sysfs attribyte for domain type")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Register EE_VERSION contains mixture of calibration information and DSP
version. So far, because calibrations were definite, the driver
compatibility depended on whole contents, but in the newer production
process the calibration part changes. Because of that, value in EE_VERSION
will be changed and to avoid that calibration value is same as DSP version
the MSB in calibration part was fixed to 1.
That means existing calibrations (medical and consumer) will now have
hex values (bits 8 to 15) of 83 and 84 respectively. Driver compatibility
should be based only on DSP version part of the EE_VERSION (bits 0 to 7)
register.
Signed-off-by: Crt Mori <cmo@melexis.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Properly suspend/resume i2c slaves connected to st_lsm6dsx master
controller if the CPU goes in suspended state
Fixes: c91c1c844e ("imu: st_lsm6dsx: add i2c embedded controller support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
According to the AD7150 configuration register description, bit 7 assumes
value 1 when the threshold mode is fixed and 0 when it is adaptive,
however, the operation that identifies this mode was considering the
opposite values.
This patch renames the boolean variable to describe it correctly and
properly replaces it in the places where it is used.
Fixes: 531efd6aa0 ("staging:iio:adc:ad7150: chan_spec conv + i2c_smbus commands + drop unused poweroff timeout control.")
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Assigning local iterator to array element and using it again for
indexing would cross the array boundary.
Fix this by directly referring array element without using the local
variable.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Backlog work for psock (sk_psock_backlog) might sleep while waiting
for memory to free up when sending packets. However, while sleeping
the socket may be closed and removed from the map by the user space
side.
This breaks an assumption in sk_stream_wait_memory, which expects the
wait queue to be still there when it wakes up resulting in a
use-after-free shown below. To fix his mark sendmsg as MSG_DONTWAIT
to avoid the sleep altogether. We already set the flag for the
sendpage case but we missed the case were sendmsg is used.
Sockmap is currently the only user of skb_send_sock_locked() so only
the sockmap paths should be impacted.
==================================================================
BUG: KASAN: use-after-free in remove_wait_queue+0x31/0x70
Write of size 8 at addr ffff888069a0c4e8 by task kworker/0:2/110
CPU: 0 PID: 110 Comm: kworker/0:2 Not tainted 5.0.0-rc2-00335-g28f9d1a3d4fe-dirty #14
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-2.fc27 04/01/2014
Workqueue: events sk_psock_backlog
Call Trace:
print_address_description+0x6e/0x2b0
? remove_wait_queue+0x31/0x70
kasan_report+0xfd/0x177
? remove_wait_queue+0x31/0x70
? remove_wait_queue+0x31/0x70
remove_wait_queue+0x31/0x70
sk_stream_wait_memory+0x4dd/0x5f0
? sk_stream_wait_close+0x1b0/0x1b0
? wait_woken+0xc0/0xc0
? tcp_current_mss+0xc5/0x110
tcp_sendmsg_locked+0x634/0x15d0
? tcp_set_state+0x2e0/0x2e0
? __kasan_slab_free+0x1d1/0x230
? kmem_cache_free+0x70/0x140
? sk_psock_backlog+0x40c/0x4b0
? process_one_work+0x40b/0x660
? worker_thread+0x82/0x680
? kthread+0x1b9/0x1e0
? ret_from_fork+0x1f/0x30
? check_preempt_curr+0xaf/0x130
? iov_iter_kvec+0x5f/0x70
? kernel_sendmsg_locked+0xa0/0xe0
skb_send_sock_locked+0x273/0x3c0
? skb_splice_bits+0x180/0x180
? start_thread+0xe0/0xe0
? update_min_vruntime.constprop.27+0x88/0xc0
sk_psock_backlog+0xb3/0x4b0
? strscpy+0xbf/0x1e0
process_one_work+0x40b/0x660
worker_thread+0x82/0x680
? process_one_work+0x660/0x660
kthread+0x1b9/0x1e0
? __kthread_create_on_node+0x250/0x250
ret_from_fork+0x1f/0x30
Fixes: 20bf50de30 ("skbuff: Function to send an skbuf on a socket")
Reported-by: Jakub Sitnicki <jakub@cloudflare.com>
Tested-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Variable 'dmtimer_ops' was declared const static instead of static const.
../drivers/clocksource/timer-ti-dm.c:899:1: warning: ‘static’ is not at beginning of declaration [-Wold-style-declaration]
const static struct omap_dm_timer_ops dmtimer_ops = {
^~~~~
Signed-off-by: Philippe Mazenauer <philippe.mazenauer@outlook.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Removing link components results in topology unloading. So,
acquire the client_mutex before removing components in
soc_remove_link_components. This will prevent the lockdep warning
seen when dai links are removed during topology removal.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Revert commit 069d037aea ("ASoC: simple-card: Fix configuration of
DAI format"). During further review, it turns out that the actual issue
was caused by an incorrectly formatted device-tree node describing the
soundcard.
The following is incorrect because the simple-audio-card
'bitclock-master' and 'frame-master' properties should not reference the
actual codec phandle ...
sound {
compatible = "simple-audio-card";
...
=> simple-audio-card,bitclock-master = <&codec>;
=> simple-audio-card,frame-master = <&codec>;
...
simple-audio-card,cpu {
sound-dai = <&xxx>;
};
simple-audio-card,codec {
=> sound-dai = <&codec>;
};
};
Rather, these properties should reference the phandle to the
'simple-audio-card,codec' property as shown below ...
sound {
compatible = "simple-audio-card";
...
=> simple-audio-card,bitclock-master = <&codec>;
=> simple-audio-card,frame-master = <&codec>;
...
simple-audio-card,cpu {
sound-dai = <&xxx>;
};
=> codec: simple-audio-card,codec { /* simple-card wants here */
sound-dai = <&xxx>; /* not here */
};
};
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
As per the current design, in the case of sw crypto controlled devices,
it is the device which advertises the support for AP/VLAN iftype based
on it's ability to tranmsit packets encrypted in software
(In VLAN functionality, group traffic generated for a specific
VLAN group is always encrypted in software). Commit db3bdcb9c3
("mac80211: allow AP_VLAN operation on crypto controlled devices")
has introduced this change.
Since 4addr AP operation also uses AP/VLAN iftype, this conditional
way of advertising AP/VLAN support has broken 4addr AP mode operation on
crypto controlled devices which do not support VLAN functionality.
In the case of ath10k driver, not all firmwares have support for VLAN
functionality but all can support 4addr AP operation. Because AP/VLAN
support is not advertised for these devices, 4addr AP operations are
also blocked.
Fix this by allowing 4addr operation on devices which do not support
AP/VLAN iftype but can support 4addr AP operation (decision is based on
the wiphy flag WIPHY_FLAG_4ADDR_AP).
Cc: stable@vger.kernel.org
Fixes: db3bdcb9c3 ("mac80211: allow AP_VLAN operation on crypto controlled devices")
Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.
This patch fixes the following warning:
drivers/net/wireless/mac80211_hwsim.c: In function ‘init_mac80211_hwsim’:
drivers/net/wireless/mac80211_hwsim.c:3853:21: warning: this statement may fall through [-Wimplicit-fallthrough=]
param.reg_strict = true;
~~~~~~~~~~~~~~~~~^~~~~~
drivers/net/wireless/mac80211_hwsim.c:3854:3: note: here
case HWSIM_REGTEST_DRIVER_REG_ALL:
^~~~
Warning level 3 was used: -Wimplicit-fallthrough=3
This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The reported rate is not scaled down correctly. After applying this patch,
the function will behave just like the v/ht equivalents.
Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes gcc '-Wunused-but-set-variable' warning:
net/mac80211/key.c: In function 'ieee80211_set_tx_key':
net/mac80211/key.c:271:24: warning:
variable 'old' set but not used [-Wunused-but-set-variable]
It is not used since introduction in
commit 96fc6efb9a ("mac80211: IEEE 802.11 Extended Key ID support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When receiving a deauthentication/disassociation frame from a TDLS
peer, a station should not disconnect the current AP, but only
disable the current TDLS link if it's enabled.
Without this change, a TDLS issue can be reproduced by following the
steps as below:
1. STA-1 and STA-2 are connected to AP, bidirection traffic is running
between STA-1 and STA-2.
2. Set up TDLS link between STA-1 and STA-2, stay for a while, then
teardown TDLS link.
3. Repeat step #2 and monitor the connection between STA and AP.
During the test, one STA may send a deauthentication/disassociation
frame to another, after TDLS teardown, with reason code 6/7, which
means: Class 2/3 frame received from nonassociated STA.
On receive this frame, the receiver STA will disconnect the current
AP and then reconnect. It's not a expected behavior, purpose of this
frame should be disabling the TDLS link, not the link with AP.
Cc: stable@vger.kernel.org
Signed-off-by: Yu Wang <yyuwang@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In the case of compat syscall ioctl numbers for UI_BEGIN_FF_UPLOAD and
UI_END_FF_UPLOAD need to be adjusted before being passed on
uinput_ioctl_handler() since code built with -m32 will be passing
slightly different values. Extend the code already covering
UI_SET_PHYS to cover UI_BEGIN_FF_UPLOAD and UI_END_FF_UPLOAD as well.
Reported-by: Pierre-Loup A. Griffais <pgriffais@valvesoftware.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add three tests to test_verifier/basic_instr that make sure that the
high 32-bits of the destination register is cleared after an ALU32
and/or/xor.
Signed-off-by: Björn Töpel <bjorn.topel@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
When using 32-bit subregisters (ALU32), the RISC-V JIT would not clear
the high 32-bits of the target register and therefore generate
incorrect code.
E.g., in the following code:
$ cat test.c
unsigned int f(unsigned long long a,
unsigned int b)
{
return (unsigned int)a & b;
}
$ clang-9 -target bpf -O2 -emit-llvm -S test.c -o - | \
llc-9 -mattr=+alu32 -mcpu=v3
.text
.file "test.c"
.globl f
.p2align 3
.type f,@function
f:
r0 = r1
w0 &= w2
exit
.Lfunc_end0:
.size f, .Lfunc_end0-f
The JIT would not clear the high 32-bits of r0 after the
and-operation, which in this case might give an incorrect return
value.
After this patch, that is not the case, and the upper 32-bits are
cleared.
Reported-by: Jiong Wang <jiong.wang@netronome.com>
Fixes: 2353ecc6f9 ("bpf, riscv: add BPF JIT for RV64G")
Signed-off-by: Björn Töpel <bjorn.topel@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This can be a debug message. Favour dev_dbg() over dprintk() as this is
already used much more than dprintk().
dvb_frontend: dvb_frontend_get_frequency_limits: frequency interval: tuner: 45000000...860000000, frontend: 44250000...867250000
Fixes: 00ecd6bc71 ("media: dvb_frontend: add debug message for frequency intervals")
Cc: <stable@vger.kernel.org> # 5.0
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
spi_finalize_current_message() shall be called once all
actions are finished, otherwise the last actions might
step over a newly started transfer.
Fixes: c592becbe7 ("spi: fsl-(e)spi: migrate to generic master queueing")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
The S510 remote-control shows up as a second keyboard (keypad) on the
receiver. It has a scroll-wheel, which normally sends wheel event
originating from the mouse's evdev node.
Add a HIDPP_QUIRK_KBD_SCROLL_WHEEL quirk for it, so that the wheel events
properly originate from the evdev node of the remote control itself.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Since kernel v5.0, one single win8 touchscreen device failed.
And it turns out this is because it reports 2 InRange usage per touch.
It's a first, and I *really* wonder how this was allowed by Microsoft in
the first place. But IIRC, Breno told me this happened *after* a firmware
upgrade...
Anyway, better be safe for those crappy devices, and make sure we have
a full slot before jumping to the next.
This won't prevent all crappy devices to fail here, but at least we will
have a safeguard as long as the contact ID and the X and Y coordinates
are placed in the report after the grabage.
Fixes: 01eaac7e57 ("HID: multitouch: remove one copy of values")
CC: stable@vger.kernel.org # v5.0+
Reported-and-tested-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
GCC 9 fails to calculate the size of local constant strings and produces a
false positive:
samples/bpf/task_fd_query_user.c: In function ‘test_debug_fs_uprobe’:
samples/bpf/task_fd_query_user.c:242:67: warning: ‘%s’ directive output may be truncated writing up to 255 bytes into a region of size 215 [-Wformat-truncation=]
242 | snprintf(buf, sizeof(buf), "/sys/kernel/debug/tracing/events/%ss/%s/id",
| ^~
243 | event_type, event_alias);
| ~~~~~~~~~~~
samples/bpf/task_fd_query_user.c:242:2: note: ‘snprintf’ output between 45 and 300 bytes into a destination of size 256
242 | snprintf(buf, sizeof(buf), "/sys/kernel/debug/tracing/events/%ss/%s/id",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
243 | event_type, event_alias);
| ~~~~~~~~~~~~~~~~~~~~~~~~
Workaround this by lowering the buffer size to a reasonable value.
Related GCC Bugzilla: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83431
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
If the trace for read is larger than 4096, the return
value sz will be 4096. This results in off-by-one error
on buf:
static char buf[4096];
ssize_t sz;
sz = read(trace_fd, buf, sizeof(buf));
if (sz > 0) {
buf[sz] = 0;
puts(buf);
}
Signed-off-by: Chang-Hsien Tsai <luke.tw@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The BPF_FUNC_sk_lookup_xxx helpers return RET_PTR_TO_SOCKET_OR_NULL.
Meaning a fullsock ptr and its fullsock's fields in bpf_sock can be
accessed, e.g. type, protocol, mark and priority.
Some new helper, like bpf_sk_storage_get(), also expects
ARG_PTR_TO_SOCKET is a fullsock.
bpf_sk_lookup() currently calls sk_to_full_sk() before returning.
However, the ptr returned from sk_to_full_sk() is not guaranteed
to be a fullsock. For example, it cannot get a fullsock if sk
is in TCP_TIME_WAIT.
This patch checks for sk_fullsock() before returning. If it is not
a fullsock, sock_gen_put() is called if needed and then returns NULL.
Fixes: 6acc9b432e ("bpf: Add helper to retrieve socket in BPF")
Cc: Joe Stringer <joe@isovalent.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Joe Stringer <joe@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
__bpf_skc_lookup takes a socket tuple and the length of the
tuple as an argument. Based on the length, it decides which
address family to pass to the helper function sk_lookup.
In case of AF_INET6, it fails to verify that the length
of the tuple is long enough. sk_lookup may therefore access
data past the end of the tuple.
Fixes: 6acc9b432e ("bpf: Add helper to retrieve socket in BPF")
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Fix Sphinx warnings in Documentation/networking/af_xdp.rst by
adding indentation:
Documentation/networking/af_xdp.rst:319: WARNING: Literal block expected; none found.
Documentation/networking/af_xdp.rst:326: WARNING: Literal block expected; none found.
Fixes: 0f4a9b7d4e ("xsk: add FAQ to facilitate for first time users")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
memorg->ntargets is initialized with '1'. It should be initialized with
the maxchips argument from nand_scan() instead. Otherwise multi chip
support errors out on the secondary chip selects when trying to call
nand_reset() on them:
WARNING: CPU: 0 PID: 1 at drivers/mtd/nand/raw/internals.h:114
nand_reset_op+0x194/0x1c4
With this memorg->ntargets is initialized with the maximum number of
chip selects supported by the driver. After having detected the number
of actually connected chips memory->ntargets is updated with that
number.
Fixes: 32813e2884 ("mtd: rawnand: Get rid of chip->numchips")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
I2SE has been acquired, so i decided to use my private address now.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Amlogic's vendor kernel defines an OPP for the GPU on Meson8b boards
with a voltage of 1.15V. It turns out that the vendor kernel relies on
the bootloader to set up the voltage. The bootloader however sets a
fixed voltage of 1.10V.
Amlogic's patched u-boot sources (uboot-2015-01-15-23a3562521) confirm
this:
$ grep -oiE "VDD(EE|AO)_VOLTAGE[ ]+[0-9]+" board/amlogic/configs/m8b_*
board/amlogic/configs/m8b_m100_v1.h:VDDAO_VOLTAGE 1100
board/amlogic/configs/m8b_m101_v1.h:VDDAO_VOLTAGE 1100
board/amlogic/configs/m8b_m102_v1.h:VDDAO_VOLTAGE 1100
board/amlogic/configs/m8b_m200_v1.h:VDDAO_VOLTAGE 1100
board/amlogic/configs/m8b_m201_v1.h:VDDEE_VOLTAGE 1100
board/amlogic/configs/m8b_m201_v1.h:VDDEE_VOLTAGE 1100
board/amlogic/configs/m8b_m202_v1.h:VDDEE_VOLTAGE 1100
Another hint at this is the VDDEE voltage on the EC-100 and Odroid-C1
boards. The VDDEE regulator supplies the Mali GPU. It's basically a copy
of the VCCK (CPU supply) which means it's limited to 0.86V to 1.14V.
Update the operating voltage of the Mali GPU on Meson8b to 1.10V so it
matches with what the vendor u-boot sets.
Fixes: c3ea80b613 ("ARM: dts: meson8b: add the Mali-450 MP2 GPU")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Drop the undocumented "switch-delay" which is a left-over from my
experiments with an early lima kernel driver when it was still
out-of-tree and required this property on Amlogic SoCs.
Fixes: c3ea80b613 ("ARM: dts: meson8b: add the Mali-450 MP2 GPU")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The interrupts in Amlogic's vendor kernel sources are all contiguous.
There are two typos leading to pp2 and pp4 as well as ppmmu2 and ppmmu4
incorrectly sharing the same interrupt line.
Fix this by using interrupt 170 for pp2 and 171 for ppmmu2.
Also drop the undocumented "switch-delay" which is a left-over from my
experiments with an early lima kernel driver when it was still
out-of-tree and required this property on Amlogic SoCs.
Fixes: 7d3f6b536e ("ARM: dts: meson8: add the Mali-450 MP6 GPU")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
During the removal of the skeleton.dtsi file with commit abe60a3a7a
("ARM: dts: Kill off skeleton{64}.dtsi") a number of Broadcom SoCs were
converted, but a few were left unoticed, now causing boot failures with
v5.1 since the kernel cannot find suitable memory.
Updating the .dtsi files with the property will be done next, since
there are some memory nodes that do not follow the proper naming
convention and lack an unit name.
Fixes: abe60a3a7a ("ARM: dts: Kill off skeleton{64}.dtsi")
Reported-by: Kevin Hilman <khilman@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The BIUCTRL register writes require that a data barrier be inserted
after comitting the write to the register for the block to latch in the
recently written values. Reads have no such requirement and are not
changed.
Fixes: 34642650e5 ("soc: Move brcmstb to bcm/brcmstb")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
In case setup_hifcpubiuctrl_regs() returns an error, because of e.g:
an unsupported CPU type, just catch that error and return instead of
blindly continuing with the initialization. This fixes a NULL pointer
de-reference with the code continuing without having a proper array of
registers to use.
Fixes: 22f7a9116e ("soc: brcmstb: Correct CPU_CREDIT_REG offset for Brahma-B53 CPUs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
usb4_tm is unsed on dra71 and accessing the module
with ti,sysc is causing a boot crash hence disable its target
module.
Fixes: 549fce068a ("ARM: dts: dra7: Add l4 interconnect hierarchy and ti-sysc data")
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Introduce dra71x.dtsi to include dra71x specific changes.
rtc is fused out on dra71 and accessing target module
register is causing a boot crash hence disable it.
Fixes: 549fce068a ("ARM: dts: dra7: Add l4 interconnect hierarchy and ti-sysc data")
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
usb4_tm is unsed on dra76 and accessing the module
with ti,sysc is causing a boot crash hence disable its target
module.
Fixes: 549fce068a ("ARM: dts: dra7: Add l4 interconnect hierarchy and ti-sysc data")
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
rtc is fused out on dra76 and accessing target module
register is causing a boot crash hence disable it.
Fixes: 549fce068a ("ARM: dts: dra7: Add l4 interconnect hierarchy and ti-sysc data")
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
When configuring a codec to be both bit-clock and frame-master, it was
found that the codec was always configured as bit-clock and frame-slave.
Looking at the simple_dai_link_of() function there appears to be two
problems with the configuration of the DAI format, which are ...
1. The function asoc_simple_parse_daifmt() is called before the function
asoc_simple_parse_codec() and this means that the device-tree node
for the codec has not been parsed yet, which is needed by the
function asoc_simple_parse_daifmt() to determine who is the codec.
2. The phandle passed to asoc_simple_parse_daifmt() is the phandle to
the 'codec' node and not the phandle of the actual codec defined by
the 'sound-dai' property under the 'codec' node.
Fix the above by moving the call to asoc_simple_parse_daifmt() after the
the call to asoc_simple_parse_codec() and pass the phandle for the codec
to asoc_simple_parse_daifmt().
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
There is a case when a we want to read a large number of bytes that
require a burst but is not a multiple of the word size (8). When this
happens rt5677_spi_reverse will run off the end of the buffer. The
solution is to tell spi_reverse the actual size of the destination and
stop if we reach it even if we have data left that we read.
Cc: Ben Zhang <benzh@chromium.org>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
snd_soc_dai_link_event() is updating snd_soc_dai :: active,
but it is unbalance.
It counts up if it has startup callback.
case SND_SOC_DAPM_PRE_PMU:
...
snd_soc_dapm_widget_for_each_source_path(w, path) {
...
if (source->driver->ops->startup) {
...
=> source->active++;
}
...
}
...
But, always counts down
case SND_SOC_DAPM_PRE_PMD:
...
snd_soc_dapm_widget_for_each_source_path(w, path) {
...
=> source->active--;
...
}
This patch always counts up when SND_SOC_DAPM_PRE_PMD.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The variable which holds the parent names for the VPU clocks has a typo
in it. Fix this typo to make the variable naming in the driver
consistent. No functional changes.
Fixes: 41785ce562 ("clk: meson: meson8b: add the VPU clock trees")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Since commit 1e434b7032 ("ARM: imx: update the cpu power up timing
setting on i.mx6sx") some characters loss is noticed on i.MX6ULL UART
as reported by Christoph Niedermaier.
The intention of such commit was to increase the SW2ISO field for i.MX6SX
only, but since cpuidle-imx6sx is also used on i.MX6UL/i.MX6ULL this caused
unintended side effects on other SoCs.
Fix this problem by keeping the original SW2ISO value for i.MX6UL/i.MX6ULL
and only increase SW2ISO in the i.MX6SX case.
Cc: stable@vger.kernel.org
Fixes: 1e434b7032 ("ARM: imx: update the cpu power up timing setting on i.mx6sx")
Reported-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Tested-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
During randconfig builds, I occasionally run into an invalid configuration
drivers/soc/imx/soc-imx8.o: In function `imx8_soc_init':
soc-imx8.c:(.init.text+0x144): undefined reference to `soc_device_register'
while CONFIG_SOC_BUS is not set, the building failed like this. This patch
selects SOC_BUS to fix it.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: a7e26f356c ("soc: imx: Add generic i.MX8 SoC driver")
Suggested-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The Bluetooth interface of the 2nd-gen Intuos Pro batches together four
independent "frames" of finger data into a single report. Each frame
is essentially equivalent to a single USB report, with the up-to-10
fingers worth of information being spread across two frames. At the
moment the driver only calls `input_sync` after processing all four
frames have been processed, which can result in the driver sending
multiple updates for a single slot within the same SYN_REPORT. This
can confuse userspace, so modify the driver to sync more often if
necessary (i.e., after reporting the state of all fingers).
Fixes: 4922cd26f0 ("HID: wacom: Support 2nd-gen Intuos Pro's Bluetooth classic interface")
Cc: <stable@vger.kernel.org> # 4.11+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The button numbering of the 2nd-gen Intuos Pro is not consistent between
the USB and Bluetooth interfaces. Over USB, the HID_GENERIC codepath
enumerates the eight ExpressKeys first (BTN_0 - BTN_7) followed by the
center modeswitch button (BTN_8). The Bluetooth codepath, however, has
the center modeswitch button as BTN_0 and the the eight ExpressKeys as
BTN_1 - BTN_8. To ensure userspace button mappings do not change
depending on how the tablet is connected, modify the Bluetooth codepath
to report buttons in the same order as USB.
To ensure the mode switch LED continues to toggle in response to the
mode switch button, the `wacom_is_led_toggled` function also requires
a small update.
Link: https://github.com/linuxwacom/input-wacom/pull/79
Fixes: 4922cd26f0 ("HID: wacom: Support 2nd-gen Intuos Pro's Bluetooth classic interface")
Cc: <stable@vger.kernel.org> # 4.11+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Aaron Skomra <aaron.skomra@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The Bluetooth reports from the 2nd-gen Intuos Pro have separate bits for
indicating if the tip or eraser is in contact with the tablet. At the
moment, only the tip contact bit controls the state of the BTN_TOUCH
event. This prevents the eraser from working as expected. This commit
changes the driver to send BTN_TOUCH whenever either the tip or eraser
contact bit is set.
Fixes: 4922cd26f0 ("HID: wacom: Support 2nd-gen Intuos Pro's Bluetooth classic interface")
Cc: <stable@vger.kernel.org> # 4.11+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Aaron Skomra <aaron.skomra@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
If the tool spends some time in prox before entering range, a series of
events (e.g. ABS_DISTANCE, MSC_SERIAL) can be sent before we or userspace
have any clue about the pen whose data is being reported. We need to hold
off on reporting anything until the pen has entered range. Since we still
want to report events that occur "in prox" after the pen has *left* range
we use 'wacom-tool[0]' as the indicator that the pen did at one point
enter range and provide us/userspace with tool type and serial number
information.
Fixes: a48324de6d ("HID: wacom: Bluetooth IRQ for Intuos Pro should handle prox/range")
Cc: <stable@vger.kernel.org> # 4.11+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The serial number and tool type information that is reported by the tablet
while a pen is merely "in prox" instead of fully "in range" can be stale
and cause us to report incorrect tool information. Serial number, tool
type, and other information is only valid once the pen comes fully in range
so we should be careful to not use this information until that point.
In particular, this issue may cause the driver to incorectly report
BTN_TOOL_RUBBER after switching from the eraser tool back to the pen.
Fixes: a48324de6d ("HID: wacom: Bluetooth IRQ for Intuos Pro should handle prox/range")
Cc: <stable@vger.kernel.org> # 4.11+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Add regcache_mark_dirty before regcache_sync for power
of codec may be lost at suspend, then all the register
need to be reconfigured.
Fixes: 0c516b4ff8 ("ASoC: cs42xx8: Add codec driver
support for CS42448/CS42888")
Cc: <stable@vger.kernel.org>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
A NULL init_data once incremented will lead to oops, fix it.
Fixes: f979c08f76 ("regulator: tps6507x: Convert to regulator core's simplified DT parsing code")
Reported-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
When the output sample rate is [8kHz, 30kHz], the limitation
of the supported ratio range is [1/24, 8]. In the driver
we use (8kHz, 30kHz) instead of [8kHz, 30kHz].
So this patch is to fix this issue and the potential rounding
issue with divider.
Fixes: fff6e03c7b ("ASoC: fsl_asrc: add support for 8-30kHz
output sample rate")
Cc: <stable@vger.kernel.org>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Notify the PM core that this device is the wake source. This helps
userspace daemon tracking the wake sources to identify the origin of the
wake.
Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Commit 715a123347 ("wireless: don't write C files on failures") drops
the `test -f $$f` check. The list of targets contains the
CONFIG_CFG80211_EXTRA_REGDB_KEYDIR directory itself, and this check used
to filter it out. After the check was removed, the extra keydir option
no longer works, failing with the following message:
od: 'standard input': read error: Is a directory
This commit restores the check to make extra keydir work again.
Fixes: 715a123347 ("wireless: don't write C files on failures")
Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
snd_soc_component_update_bits() may return 1 if operation
was successful and the value of the register changed.
Return a non-zero in ak4458_rstn_control for an error only.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
If playback/capture is paused and system enters S3, after system returns
from suspend, BE dai needs to call prepare() callback when playback/capture
is released from pause if RESUME_INFO flag is not set.
Currently, the dpcm_be_dai_prepare() function will block calling prepare()
if the pcm is in SND_SOC_DPCM_STATE_PAUSED state. This will cause the
following test case fail if the pcm uses BE:
playback -> pause -> S3 suspend -> S3 resume -> pause release
The playback may exit abnormally when pause is released because the BE dai
prepare() is not called.
This patch allows dpcm_be_dai_prepare() to call dai prepare() callback in
SND_SOC_DPCM_STATE_PAUSED state.
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
AK4458 is probed successfully even if AK4458 is not present - this
is caused by probe function returning no error on i2c access failure.
Return an error on probe if i2c access has failed.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The cs4265_readable_register function stopped short of the maximum
register.
An example bug is taken from :
https://github.com/Audio-Injector/Ultra/issues/25
Where alsactl store fails with :
Cannot read control '2,0,0,C Data Buffer,0': Input/output error
This patch fixes the bug by setting the cs4265 to have readable
registers up to the maximum hardware register CS4265_MAX_REGISTER.
Signed-off-by: Matt Flax <flatmax@flatmax.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
A race condition exists in handling firmware boot timeout.
If FW sends FW_READY just after boot timeout has expired in
driver, a kernel exception will result as FW_READY handler
will be run while the state is still being cleaned up in
snd_sof_run_firmware(). Avoid the race by setting
boot_complete also in the error case.
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The nocodec option can be selected individually, leading to the following
issue:
sound/soc/sof/core.o: In function `snd_sof_device_probe':
core.c:(.text+0x4af): undefined reference to `sof_nocodec_setup'
Fix by selecting the SND_SOF_NOCODEC option as needed.
Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The touchpad on the cover keyboard for the Acer Switch 3 and 5 does not
work as-is under Linux. Both devices have the same usb id for the cover
keyboard.
The kernel correctly assigns the hid-rmi driver to the device using usbhid
for transport.
Any attempts of hid-rmi to talk to the device using hid_hw_output_report
fail however as usbhid does not have a working urbout due to the lack of
any out endpoints.
Looking through Wireshark usbmon recordings from the Windows Synaptics
driver for this computer running inside of QEMU shows that it should be
using SET_REPORT requests instead.
This replaces the hid_hw_output_report in hid-rmi with a
hid_hw_raw_request for this device, which is at least enough to enable
the kernel to get working multi-touch input.
Signed-off-by: Tobias Auerochs <tobi291019@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The MX5500 keyboard needs the HIDPP_CONSUMER_VENDOR_KEYS quirk to report
events for the 'A' - 'D' Smart Keys and for the "Photo Gallery" and
"Gadgets" keys.
In addition to this adding the Bluetooth match, so that hid-logitech-hidpp
is used instead of the generic HID driver, also adds battery monitoring
support when the keyboard is connected over Bluetooth.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add support for the HID proxy mode of the Logitech Bluetooth Mini-Receiver
which comes with the Logitech MX5500 keyboard. This receiver works the same
as the Bluetooth Mini-Receiver coming with the MX5000 keyboard and also
presents itself as an USB-hub with 2 separate USB devices for the keyboard
(boot sub-class) interface and for the (boot sub-class) mouse interface.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This reverts commit c9ba7a16d0 (Release spi_res after finalizing
message) which causes races during cleanup.
Reported-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Update the MMC2_HS200_MANUAL1 iodelay values to match with the latest
dra76x data manual[1]. The new iodelay values will have better marginality
and should prevent issues in corner cases.
Also this particular pinctrl-array is using spaces instead of tabs for
spacing between the values and the comments. Fix this as well.
[1] http://www.ti.com/lit/ds/symlink/dra76p.pdf
Cc: <stable@vger.kernel.org>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
[tony@atomide.com: updated description with a bit more info]
Signed-off-by: Tony Lindgren <tony@atomide.com>
If UHS speed modes are enabled, a compatible SD card switches down to
1.8V during enumeration. If after this a software reboot/crash takes
place and on-chip ROM tries to enumerate the SD card, the difference in
IO voltages (host @ 3.3V and card @ 1.8V) may end up damaging the card.
The fix for this is to have support for power cycling the card in
hardware (with a PORz/soft-reset line causing a power cycle of the
card). Since am571x-, am572x- and am574x-idk don't have this
capability, disable voltage switching for these boards.
The major effect of this is that the maximum supported speed
mode is now high speed(50 MHz) down from SDR104(200 MHz).
Cc: <stable@vger.kernel.org>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Some interconnect target modules have no module control registers at
all, such as d_can on am335x and am437x.
The d_can register offset at 0 is CTL register with 0x401 as the default
value. I guess I mistook the 0x401 value for a revision register as the
value happens to look similar to what the revision registers typically
have for other modules.
To handle modules with no control registers, we need to improve the
ti-sysc driver a bit to bail out with errors on no control registers,
and then we can remove the bogus revision registers for d_can.
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reading the module revision register can cause an external abort on
non-linefetch depending of osc clock is not already enabled. This
started happening with commit 1a5cd7c23c ("bus: ti-sysc: Enable all
clocks directly during init to read revision") as reported by
Sebastian Andrzej Siewior <bigeasy@linutronix.de>.
The reason why the issue happens is because we now attempt to read the
interconnect target module revision register by first manually enabling
all the device clocks in sysc_probe(). And looks like d_can also needs
the osc clock in addition to the module clock, and it may or may not be
enabled depending on the bootloader version and if other devices have
already requested osc clock.
Let's fix the issue by adding osc clock as an optional clock for the
module for am335x. Note that am437x does not seem to list the osc clock
at all, so presumably it is not needed for am437x.
I also noticed that we're incorrectly assuming the revision register for
d_can exists. But the module does not seem to have any revision, sysconfig
or sysstatus registers. But that's mostly a cosmetic issues, so I'll send
a patch separately for that.
Fixes: 1a5cd7c23c ("bus: ti-sysc: Enable all clocks directly during init to read revision")
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-01 14:24:09 -07:00
5787 changed files with 13247 additions and 28846 deletions
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