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640 Commits

Author SHA1 Message Date
Linus Torvalds
ddf28352b8 Linux 3.1-rc5 2011-09-04 15:45:10 -07:00
Linus Torvalds
0b043686fd Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)
  drm/radeon/kms: set a default max_pixel_clock
2011-09-02 08:27:01 -07:00
Linus Torvalds
4d7b5a116f Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: fix ->write_inode return values
  xfs: fix xfs_mark_inode_dirty during umount
  xfs: deprecate the nodelaylog mount option
2011-09-02 08:25:23 -07:00
Alex Deucher
d054ac16ee drm/radeon/kms: make sure pci max read request size is valid on evergreen+ (v2)
If the bios or OS sets the pci max read request size to 0 or an
invalid value (6,7), it can result in a hang or slowdown.  Check
and set it to something sane if it's invalid.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=42162

v2: use pci reg defines from include/linux/pci_regs.h

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-09-02 09:40:20 +01:00
Christoph Hellwig
58d84c4ee0 xfs: fix ->write_inode return values
Currently we always redirty an inode that was attempted to be written out
synchronously but has been cleaned by an AIL pushed internall, which is
rather bogus.  Fix that by doing the i_update_core check early on and
return 0 for it.  Also include async calls for it, as doing any work for
those is just as pointless.  While we're at it also fix the sign for the
EIO return in case of a filesystem shutdown, and fix the completely
non-sensical locking around xfs_log_inode.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit 297db93bb74cf687510313eb235a7aec14d67e97)

Signed-off-by: Alex Elder <aelder@sgi.com>
2011-09-01 09:46:11 -05:00
Christoph Hellwig
866e4ed774 xfs: fix xfs_mark_inode_dirty during umount
During umount we do not add a dirty inode to the lru and wait for it to
become clean first, but force writeback of data and metadata with
I_WILL_FREE set.  Currently there is no way for XFS to detect that the
inode has been redirtied for metadata operations, as we skip the
mark_inode_dirty call during teardown.  Fix this by setting i_update_core
nanually in that case, so that the inode gets flushed during inode reclaim.

Alternatively we could enable calling mark_inode_dirty for inodes in
I_WILL_FREE state, and let the VFS dirty tracking handle this.  I decided
against this as we will get better I/O patterns from reclaim compared to
the synchronous writeout in write_inode_now, and always marking the inode
dirty in some way from xfs_mark_inode_dirty is a better safetly net in
either case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
(cherry picked from commit da6742a5a4cc844a9982fdd936ddb537c0747856)

Signed-off-by: Alex Elder <aelder@sgi.com>
2011-08-31 17:59:39 -05:00
Linus Torvalds
b79c4f75e4 Merge tag 'for_linus-20110831' of git://github.com/tytso/ext4
* tag 'for_linus-20110831' of git://github.com/tytso/ext4:
  ext4: remove i_mutex lock in ext4_evict_inode to fix lockdep complaining
2011-08-31 15:08:19 -07:00
Linus Torvalds
fd53f7d8ee Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
  md/raid5: fix a hang on device failure.
  md: fix clearing of 'blocked' flag in the presence of bad blocks.
  md/linear: avoid corrupting structure while waiting for rcu_free to complete.
  md: use REQ_NOIDLE flag in md_super_write()
  md: ensure changes to 'write-mostly' are reflected in metadata.
  md: report failure if a 'set faulty' request doesn't.
2011-08-31 09:02:06 -07:00
Linus Torvalds
e9208a4eec Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/p1023rds: Fix the error of bank-width of nor flash
  powerpc/85xx: enable caam crypto driver by default
  powerpc/85xx: enable the audio drivers in the defconfigs
2011-08-31 08:58:36 -07:00
Jiaying Zhang
8c0bec2151 ext4: remove i_mutex lock in ext4_evict_inode to fix lockdep complaining
The i_mutex lock and flush_completed_IO() added by commit 2581fdc810
in ext4_evict_inode() causes lockdep complaining about potential
deadlock in several places.  In most/all of these LOCKDEP complaints
it looks like it's a false positive, since many of the potential
circular locking cases can't take place by the time the
ext4_evict_inode() is called; but since at the very least it may mask
real problems, we need to address this.

This change removes the flush_completed_IO() and i_mutex lock in
ext4_evict_inode().  Instead, we take a different approach to resolve
the software lockup that commit 2581fdc810 intends to fix.  Rather
than having ext4-dio-unwritten thread wait for grabing the i_mutex
lock of an inode, we use mutex_trylock() instead, and simply requeue
the work item if we fail to grab the inode's i_mutex lock.

This should speed up work queue processing in general and also
prevents the following deadlock scenario: During page fault,
shrink_icache_memory is called that in turn evicts another inode B.
Inode B has some pending io_end work so it calls ext4_ioend_wait()
that waits for inode B's i_ioend_count to become zero.  However, inode
B's ioend work was queued behind some of inode A's ioend work on the
same cpu's ext4-dio-unwritten workqueue.  As the ext4-dio-unwritten
thread on that cpu is processing inode A's ioend work, it tries to
grab inode A's i_mutex lock.  Since the i_mutex lock of inode A is
still hold before the page fault happened, we enter a deadlock.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-08-31 11:50:51 -04:00
Dave Airlie
9adceaa5b3 drm/radeon/kms: set a default max_pixel_clock
On some Power rv100 cards, we have no ATY OF table, but we have
no combios table either, and hence we refuse all modes on VGA-0
since we end up with a 0 max pixel clock.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
2011-08-31 14:06:19 +01:00
NeilBrown
43220aa0f2 md/raid5: fix a hang on device failure.
Waiting for a 'blocked' rdev to become unblocked in the raid5d thread
cannot work with internal metadata as it is the raid5d thread which
will clear the blocked flag.
This wasn't a problem in 3.0 and earlier as we only set the blocked
flag when external metadata was used then.
However we now set it always, so we need to be more careful.

Signed-off-by: NeilBrown <neilb@suse.de>
2011-08-31 12:49:14 +10:00
Chunhe Lan
0c81e4b426 powerpc/p1023rds: Fix the error of bank-width of nor flash
In the p1023rds, a physical bus of nor flash is 16 bits width.
The bank-width is width (in bytes) of the bus width. So, the
value of bank-width of nor flash is not one, and it should be
two.

Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-08-30 21:27:33 -05:00
Kim Phillips
e09e2fb513 powerpc/85xx: enable caam crypto driver by default
corenet based SoCs have SEC4 h/w, so enable the SEC4 driver,
caam, and the algorithms it supports, and disable the
SEC2/3 driver, talitos.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-08-30 21:27:30 -05:00
Timur Tabi
39c428f753 powerpc/85xx: enable the audio drivers in the defconfigs
Enable the audio drivers in the non-corenet 85xx defconfigs so that audio
is enabled on the Freescale P1022DS reference board.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-08-30 21:27:29 -05:00
Linus Torvalds
9e79e3e9dd Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Only Panther cheetah+ chips have POPC.
2011-08-30 11:28:18 -07:00
Linus Torvalds
ebde8b0223 Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: add s/r quirk for Compaq Presario V5245EU
  drm/radeon/kms: evergreen & ni reset SPI block on CP resume
  drm: Fix the number of connector and encoder to cleanup functions
2011-08-30 10:34:24 -07:00
Geert Uytterhoeven
bd823821e6 bitops: Move find_next_bit.o from lib-y to obj-y
If there are no builtin users of find_next_bit_le() and
find_next_zero_bit_le(), these functions are not present in the kernel
image, causing m68k allmodconfig to fail with:

  ERROR: "find_next_zero_bit_le" [fs/ufs/ufs.ko] undefined!
  ERROR: "find_next_bit_le" [fs/udf/udf.ko] undefined!
  ...

This started to happen after commit 171d809df1 ("m68k: merge mmu and
non-mmu bitops.h"), as m68k had its own inline versions before.

commit 63e424c844 ("arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,
BIT_LE, LAST_BIT}") added find_last_bit.o to obj-y (so it's always
included), but find_next_bit.o to lib-y (so it gets removed by the
linker if there are no builtin users).

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-30 10:12:05 -07:00
Alex Deucher
302a8e8b06 drm/radeon/kms: add s/r quirk for Compaq Presario V5245EU
Fixes resume on Compaq Presario V5245EU.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=41642

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-30 10:55:20 +01:00
Jerome Glisse
a49a50dad4 drm/radeon/kms: evergreen & ni reset SPI block on CP resume
For some reason SPI block is in broken state after module
unloading. This lead to broken rendering after reloading
module. Fix this by reseting SPI block in CP resume function

Signed-off-by: Jerome Glisse <jglisse@redhat.com
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-30 10:55:10 +01:00
NeilBrown
7da64a0abc md: fix clearing of 'blocked' flag in the presence of bad blocks.
When the 'blocked' flag on a device is cleared while there are
unacknowledged bad blocks we must fail the device.  This is needed for
backwards compatability of the interface.

The code currently uses the wrong test for "unacknowledged bad blocks
exist".  Change it to the right test.

Signed-off-by: NeilBrown <neilb@suse.de>
2011-08-30 16:20:17 +10:00
David S. Miller
1a8e0da593 sparc64: Only Panther cheetah+ chips have POPC.
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29 21:14:29 -07:00
Linus Torvalds
90e93648c4 Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: pm: avoid writing the auxillary control register for ARMv7
  ARM: pm: some ARMv7 requires a dsb in resume to ensure correctness
  ARM: pm: arm920/926: fix number of registers saved
  ARM: pm: CPU specific code should not overwrite r1 (v:p offset)
  ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU
  ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
  ARM: 7003/1: vexpress: Add clock definition for the SP805.
  ARM: 7051/1: cpuimx* boards: fix mach-types errors
  ARM: 7019/1: Footbridge: select CLKEVT_I8253 for ARCH_NETWINDER
  ARM: 7015/1: ARM errata: Possible cache data corruption with hit-under-miss enabled
  ARM: 7014/1: cache-l2x0: Fix L2 Cache size calculation.
  ARM: 6967/1: ep93xx: ts72xx: fix board model detection
  ARM: 6965/1: ep93xx: add model detection for ts-7300 and ts-7400 boards
  ARM: cache: detect VIPT aliasing I-cache on ARMv6
  ARM: twd: register clockevents device before enabling PPI
  ARM: realview: ensure visibility of writes during reset
  ARM: perf: make name of arm_pmu_type consistent
  ARM: perf: fix prototype of release_pmu
  ARM: fix perf build with uclibc toolchains
2011-08-29 16:34:07 -07:00
Linus Torvalds
3ae627b5a6 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
  ARM: mach-footbridge: add missing header file <video/vga.h>
  ARM: mach-orion5x: add missing header file <linux/vga.h>
  arm: fix compile failure in orion5x/dns323-setup.c
  at91: at91sam9261.c: fix typo in t2_clk alias for atmel_tcb.0
  ARM: S5P: fix bug in spdif_clk_get_rate
  ARM: EXYNOS4: Add restart hook for proper reboot
  ARM: EXYNOS4: Increase reset delay for USB HOST PHY
  ARM: S5P: add required chained_irq_enter/exit to gpio-int code
  ARM: EXYNOS4: add required chained_irq_enter/exit to eint code
  ARM: SAMSUNG: Add chained enrty/exit call to timer interrupt handler
  ARM: S3C64XX: Fix build break in PM debug
  ARM: S5PV210: Fix build warning
  ARM: EXYNOS4: Fix the IRQ definitions for MIPI CSIS device
  ARM: EXYNOS4: remove duplicated inclusion
  ARM: EXYNOS4: Fix wrong devname to support clkdev
  ARM: EXYNOS4: Use the correct regulator names on universal_c210
  ARM: SAMSUNG: Fix Section mismatch in samsung_bl_set()
  ARM: S5P64X0: Replace irq_gc_ack() with irq_gc_ack_set_bit()
2011-08-29 16:33:32 -07:00
Stephen Rothwell
d4d7b2a11c remove remaining references to nfsservctl
These were missed in commit f5b9409973 "All Arch: remove linkage
for sys_nfsservctl system call" due to them having no sys_ prefix
(presumably).

Cc: NeilBrown <neilb@suse.de>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: James Bottomley <James.Bottomley@hansenpartnership.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-29 16:31:59 -07:00
Linus Torvalds
0f43dd546d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (42 commits)
  netpoll: fix incorrect access to skb data in __netpoll_rx
  cassini: init before use in cas_interruptN.
  can: ti_hecc: Fix uninitialized spinlock in probe
  can: ti_hecc: Fix unintialized variable
  net: sh_eth: fix the compile error
  net/phy: fix DP83865 phy interrupt handler
  sendmmsg/sendmsg: fix unsafe user pointer access
  ibmveth: Fix leak when recycling skb and hypervisor returns error
  arp: fix rcu lockdep splat in arp_process()
  bridge: fix a possible use after free
  bridge: Pseudo-header required for the checksum of ICMPv6
  mcast: Fix source address selection for multicast listener report
  MAINTAINERS: Update GIT trees for network development
  ath9k: Fix PS wrappers in ath9k_set_coverage_class
  carl9170: Fix mismatch in carl9170_op_set_key mutex lock-unlock
  wl12xx: add max_sched_scan_ssids value to the hw description
  wl12xx: Fix validation of pm_runtime_get_sync return value
  wl12xx: Remove obsolete testmode NVS push command
  bcma: add uevent to the bus, to autoload drivers
  ath9k_hw: Fix STA (AR9485) bringup issue due to incorrect MAC address
  ...
2011-08-29 13:38:29 -07:00
Linus Torvalds
2cd6c7f7f1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc32,sun4d: Change IPI IRQ level to prevent collision between IPI and timer interrupt
  sparc: Remove another reference to nfsservctl
2011-08-29 13:37:42 -07:00
Linus Torvalds
380dc20088 Merge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x:
  ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock support
  ARM: mach-shmobile: sh7372 MSIOF clock support
  ARM: mach-shmobile: clock-sh7372: fixup USB-DMAC1 settings
  ARM: mach-shmobile: clock-sh73a0: tidyup CKSCR main clock selecter
  ARM: mach-shmobile: Remove 3DG/SGX from sh7372 INTCS
  ARM: mach-shmobile: mackerel: Add USB-DMA ID
  mmc: sdhi, mmcif: zboot: Correct clock disable logic
  ARM: mach-shmobile: ag5evm: SDHI requires waiting for idle
  ARM: static should be at beginning of declaration
  ARM: mach-shmobile: Use CMT2 for timer on sh7372
  ARM: mach-shmobile: sh7372: Add USB-DMAC support
2011-08-29 13:37:17 -07:00
Linus Torvalds
c42a2634d8 Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x:
  sh: fix the compile error in setup-sh7757.c
  serial: sh-sci: report CTS as active for get_mctrl
  sh: Add unaligned memory access for PC relative intructions
  sh: Fix unaligned memory access for branches without delay slots
  sh: Fix up fallout from cpuidle changes.
  serial: sh-sci: console Runtime PM support
  sh: Fix conflicting definitions of ptrace_triggered
  serial: sh-sci: fix DMA build by including dma-mapping.h
  serial: sh-sci: Fix up default regtype probing.
  sh: intc: enable both edges GPIO interrupts on sh7372
  shwdt: fix usage of mod_timer
  clocksource: sh_cmt: wait for CMCNT on init V2
2011-08-29 13:34:48 -07:00
Florian Tobias Schandinat
f9557a4477 MAINTAINERS: change framebuffer maintainer
As Paul has not much time for it I take over maintaining the
framebuffer subsystem.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-29 10:13:29 -07:00
Kjetil Oftedal
38f7f8f05e sparc32,sun4d: Change IPI IRQ level to prevent collision between IPI and timer interrupt
On Sun4d systems running in SMP mode, IRQ 14 is used for timer interrupts
and has a specialized interrupt handler. IPI is currently set to use IRQ 14
as well, which causes it to trigger the timer interrupt handler, and not the
IPI interrupt handler.

The IPI interrupt is therefore changed to IRQ 13, which is the highest
normally handled interrupt. This IRQ is also used for SBUS interrupts,
however there is nothing in the IPI/SBUS interrupt handlers that indicate
that they will not handle sharing the interrupt.
(IRQ 13 is indicated as audio interrupt, which is unlikely to be found in a
sun4d system)

Signed-off-by: Kjetil Oftedal <oftedal@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29 09:20:40 -07:00
Stephen Rothwell
2ee04a1069 sparc: Remove another reference to nfsservctl
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29 09:19:24 -07:00
Joonyoung Shim
6380c50921 drm: Fix the number of connector and encoder to cleanup functions
It is left out the code to decrease the number of connector and encoder
to the cleanup functions.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-29 11:47:35 +01:00
Magnus Damm
a408baea3c ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock support
Add clock control support for sh7372 CMT hardware blocks.

No upstream sh7372 boards are making use of CMT3 + CMT4,
but the sh7372 hardware happens to come out of reset with
all CMT MSTP clocks _enabled_, so to save power we need
to implement a fix in software to shut down unused clocks.

This patch relies on the recently merged

 794d78f drivers: sh: late disabling of clocks V2

to make sure the unused clocks get disabled as expected.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:41:02 +09:00
Magnus Damm
7ceb6666f0 ARM: mach-shmobile: sh7372 MSIOF clock support
Add clock control support for sh7372 MSIOF hardware blocks.

No upstream sh7372 boards are making use of MSIOF0->2,
but the sh7372 hardware happens to come out of reset with
all MSIOF MSTP clocks _enabled_, so to save power we need
to implement a fix in software to shut down unused clocks.

This patch relies on the recently merged

 794d78f drivers: sh: late disabling of clocks V2

to make sure the unused clocks get disabled as expected.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:39:58 +09:00
Kuninori Morimoto
6b4cb8ffe8 ARM: mach-shmobile: clock-sh7372: fixup USB-DMAC1 settings
USB-DMAC1 needs SMSTPCR4/MSTP407 controls, not MSTP214
this patch tested on mackerel board

Reported-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:37:38 +09:00
Kuninori Morimoto
86d84083cf ARM: mach-shmobile: clock-sh73a0: tidyup CKSCR main clock selecter
MAINCKSEL is [29:28], not [27:24]

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:22:39 +09:00
Magnus Damm
4861da4fee ARM: mach-shmobile: Remove 3DG/SGX from sh7372 INTCS
This patch removes support for the SGX interrupt source in
the sh7372 INTCS controller.

The SGX hardware block included in sh7372 is already hooked
up to the ARM Cortex-A8 core using the INTCA controller,
so SGX users are encouraged to make use of that interrupt
source instead.

Removing support for the SGX interrupt source in INTCS
simplifies the sh7372 power management code by allowing
us to assume that only INTCA needs to be powered on to
operate the SGX hardware.

If the INTCS interrupt source would be kept then the kernel
would be forced to deal with additional dependencies that does
not follow the regular power domain hiearachy. With this
patch in place we can safely power down INTCS while the
SGX is operating.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:13:10 +09:00
Paul Mundt
8a1c049aa9 Merge branch 'rmobile/dma' into rmobile-fixes-for-linus 2011-08-29 16:10:24 +09:00
Yoshihiro Shimoda
21d41f2b31 sh: fix the compile error in setup-sh7757.c
Fix the following build errors:

  CC      arch/sh/kernel/cpu/sh4a/setup-sh7757.o
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:681: error: implicit declaration of function ‘DMA_BIT_MASK’
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:681: error: initializer element is not constant
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:681: error: (near initialization for ‘usb_ehci_device.dev.coherent_dma_mask’)
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:705: error: initializer element is not constant
arch/sh/kernel/cpu/sh4a/setup-sh7757.c:705: error: (near initialization for ‘usb_ohci_device.dev.coherent_dma_mask’)
make[3]: *** [arch/sh/kernel/cpu/sh4a/setup-sh7757.o] Error 1

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 15:47:38 +09:00
Yoshii Takashi
4480a688b2 serial: sh-sci: report CTS as active for get_mctrl
sh-sci.c sets hardware up and then let the HW do all flow controls.
There is no software code, nor needs to get/set real CTS signal.

But, when turning CRTSCTS on through termios, uart_set_termios() in
serial_core.c checks CTS, and stops TX if it is inactive at the moment.

Because sci_get_mctrl() returns a fixed value DTR|RTS|DSR but CTS,
the sequence
  open -> set CRTSCTS -> write
hit the case and stop working, no more outputs.

This patch makes sci_get_mctrl() report CTS in addition.

Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 15:47:33 +09:00
Phil Edworthy
34f7145a63 sh: Add unaligned memory access for PC relative intructions
This adds unaligned memory access support for the following instructions:
  mov.w @(disp,PC),Rn
  mov.l @(disp,PC),Rn

These instructions are often used on SH2A toolchains.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 15:32:10 +09:00
Phil Edworthy
0710b91c51 sh: Fix unaligned memory access for branches without delay slots
This patch just clears the return code for those cases where an
unaligned memory access occurs on branch instructions without a
delay slot.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 15:32:04 +09:00
Linus Torvalds
c6a389f123 Linux 3.1-rc4 2011-08-28 21:16:01 -07:00
Linus Torvalds
c11a7e26f8 Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ARM: mach-shmobile: sh7372 LCDC1 suspend fix V2 (incremental)
  OMAP: omap_device: only override _noirq methods, not normal suspend/resume
  PM / Runtime: Correct documentation of pm_runtime_irq_safe()
  ARM: mach-shmobile: sh7372 LCDC1 suspend fix
  sh-sci / PM: Use power.irq_safe
  PM: Use spinlock instead of mutex in clock management functions
2011-08-28 10:05:39 -07:00
Russell King
2590415716 ARM: pm: avoid writing the auxillary control register for ARMv7
For ARMv7 kernels running in the non-secure world, writing to the
auxillary control register causes an abort, so we must avoid directly
writing the auxillary control register.  If the ACR has already been
reinitialized by SoC code, don't try to restore it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:54 +01:00
Russell King
f35235a315 ARM: pm: some ARMv7 requires a dsb in resume to ensure correctness
Add a dsb after the isb to ensure that the previous writes to the
CP15 registers take effect before we enable the MMU.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:54 +01:00
Russell King
1c0270cd3a ARM: pm: arm920/926: fix number of registers saved
ARM920 and ARM926 save four registers, not three.  Fix the size of
the suspend region required.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:54 +01:00
Russell King
6f354e5f40 ARM: pm: CPU specific code should not overwrite r1 (v:p offset)
r1 stores the v:p offset from the CPU invariant resume code, and is
expected to be preserved by the CPU specific code.  Overwriting it is
not a good idea.

We've managed to get away with it on sa1100 platforms because most
happen to have PHYS_OFFSET == PAGE_OFFSET, but that may not be the
case depending on kernel configuration.  So fix this latent bug.

This fixes xsc3 as well which was saving and restoring this register
independently.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:53 +01:00
Will Deacon
0f81bb6b05 ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU
cpu_v7_reset disables the MMU and then branches to the provided address.
On Thumb-2 kernels, we should take care to clear the Thumb Exception
enable bit in the System Control Register, otherwise this may wreak
havok in the code to which we are branching (for example, an ARM kernel
image via kexec).

Reviewed-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:53 +01:00
Will Deacon
552e0c8da8 ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
Commit 540b5738 ("ARM: 6999/1: head, zImage: Always Enter the kernel in
ARM state") mandates that the kernel should be entered in ARM state.

If a Thumb-2 kernel kexecs a new kernel image, we need to ensure that
we change state when branching to the new code. This patch replaces a
mov pc, lr with a bx lr on Thumb-2 kernels so that we transition to ARM
state if need be.

Reviewed-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:41 +01:00
Linus Torvalds
219f358e0b Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: sbp2: fix panic after rmmod with slow targets
2011-08-27 09:32:08 -07:00
Magnus Damm
d0168fdc7a ARM: mach-shmobile: sh7372 LCDC1 suspend fix V2 (incremental)
This patch updates the recently submitted
"Associate the HDMI clock together with LCDC1 on sh7372"
to V2 with the following change:
 - Use lcdc1_device on AP4EVB to build properly.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-08-27 14:21:00 +02:00
NeilBrown
f5b9409973 All Arch: remove linkage for sys_nfsservctl system call
The nfsservctl system call is now gone, so we should remove all
linkage for it.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-26 15:09:58 -07:00
Linus Torvalds
b727d20269 Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6
* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6:
  drm/i915: Fix wrong initializer for "locked" variable in assert_panel_unlocked
  i915: do not setup intel_backlight twice
2011-08-26 15:00:49 -07:00
Linus Torvalds
7a54f5e19f Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (30 commits)
  USB: ftdi_sio: add Calao reference board support
  USB option driver K3765/K4505 avoid CDC_DATA interface
  USB: option: add YUGA device id to driver
  usb: s5p-ehci: fix a NULL pointer deference
  USB: EHCI: Do not rely on PORT_SUSPEND to stop USB resuming in ehci_bus_resume().
  USB option driver add PID of Huawei Vodafone K4605
  USB option driver add PID of Huawei Vodafone K3806
  xhci: Handle zero-length isochronous packets.
  USB: Avoid NULL pointer deref in usb_hcd_alloc_bandwidth.
  usb: musb: gadget: fix error path
  usb: gadget: f_phonet: unlock in error case
  usb: musb: blackfin: include prefetch head file
  usb: musb: tusb6010: fix compilation
  usb: gadget: renesas_usbhs: fix DMA build by including dma-mapping.h
  usb: musb: cppi: fix build errors due to DBG and missing musb variable
  usb: musb: ux500: replace missing DBG with dev_dbg
  usb: musb: ux500: set dma config for both src and dst
  usb: musb: fix oops on musb_gadget_pullup
  usb: host: ehci-omap: fix .remove and failure handling path of .probe(v1)
  usb: gadget: hid: don't STALL when processing a HID Descriptor request
  ...
2011-08-26 13:10:06 -07:00
Linus Torvalds
efe45ab1ee Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  omap-serial: Allow IXON and IXOFF to be disabled.
  TTY: serial, document ignoring of uart->ops->startup error
  TTY: pty, fix pty counting
  8250: Fix race condition in serial8250_backup_timeout().
  serial/8250_pci: delete duplicate data definition
  8250_pci: add support for Rosewill RC-305 4x serial port card
  tty: Add "spi:" prefix for spi modalias
  atmel_serial: fix atmel_default_console_device
  serial: 8250_pnp: add Intermec CV60 touchscreen device
  drivers/serial/ucc_uart.c: Fix compiler warning
  pch_uart: Set PCIe bus number using probe parameter
  serial: samsung: Fix build error
2011-08-26 13:06:06 -07:00
Linus Torvalds
3ab47029d9 Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  drivers:misc: ti-st: fix unexpected UART close
  drivers:misc: ti-st: free skb on firmware download
  drivers:misc: ti-st: wait for completion at fail
  drivers:misc: ti-st: reinit completion before send
  drivers:misc: ti-st: fail-safe on wrong pkt type
  drivers:misc: ti-st: reinit completion on ver read
  drivers:misc:ti-st: platform hooks for chip states
  drivers:misc: ti-st: avoid a misleading dbg msg
  base/devres.c: quiet sparse noise about context imbalance
  pti: add missing CONFIG_PCI dependency
  drivers/base/devtmpfs.c: correct annotation of `setup_done'
  driver core: fix kernel-doc warning in platform.c
  firmware: fix google/gsmi.c build warning
2011-08-26 13:05:09 -07:00
Linus Torvalds
0cf0adb073 Merge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  staging: tidspbridge: fix compilation on dsp clock functions
  staging: octeon-ethernet: Add missing #includes.
  Staging: zcache: signedness bug in tmem_get()
  staging: zcache: fix crash on high memory swap
  staging: brcm80211: SPARC build error fix
  staging: brcm80211: fix compile error on non-x86 archs since 3.0 kernel
2011-08-26 13:03:12 -07:00
Eric Dumazet
e9278a475f netpoll: fix incorrect access to skb data in __netpoll_rx
__netpoll_rx() doesnt properly handle skbs with small header

pskb_may_pull() or pskb_trim_rcsum() can change skb->data, we must
reload it.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:49:04 -04:00
françois romieu
3d015565f3 cassini: init before use in cas_interruptN.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Spotted-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:49:03 -04:00
Abhilash K V
86ad47fff9 can: ti_hecc: Fix uninitialized spinlock in probe
In ti_hecc_probe(), the spinlock  priv->mbx_lock is not
inited, causing a spinlock lockup BUG.

Acked-by: Anant Gole <anantgole@ti.com>
Signed-off-by: Abhilash K V <abhilash.kv@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:48:24 -04:00
Abhilash K V
6f288cc52f can: ti_hecc: Fix unintialized variable
In ti_hecc_xmit(), local variable "data" is not initialized before
being used.
This initialization got inadvertently removed in the following patch:

	can: Unify droping of invalid tx skbs and netdev stats

Acked-by: Anant Gole <anantgole@ti.com>
Signed-off-by: Abhilash K V <abhilash.kv@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:48:24 -04:00
Yoshihiro Shimoda
69558eeeab net: sh_eth: fix the compile error
Fix the following build error:

  CC      drivers/net/sh_eth.o
drivers/net/sh_eth.c:1115: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘sh_eth_interrupt’
drivers/net/sh_eth.c: In function ‘sh_eth_open’:
drivers/net/sh_eth.c:1387: error: implicit declaration of function ‘request_irq’
drivers/net/sh_eth.c:1387: error: ‘sh_eth_interrupt’ undeclared (first use in this function)
drivers/net/sh_eth.c:1387: error: (Each undeclared identifier is reported only once
drivers/net/sh_eth.c:1387: error: for each function it appears in.)
drivers/net/sh_eth.c:1391: error: ‘IRQF_SHARED’ undeclared (first use in this function)
drivers/net/sh_eth.c:1424: error: implicit declaration of function ‘free_irq’
make[2]: *** [drivers/net/sh_eth.o] Error 1

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:48:24 -04:00
Giuseppe CAVALLARO
6e6f400f53 net/phy: fix DP83865 phy interrupt handler
According to the DP83865 datasheet we need to clear
the interrupt status bit by writing a 1 to the
corresponding bit in INT_CLEAR (2:0 are reserved).

Proposed and tested by Thorsten.

Signed-off-by: Thorsten Schubert <tshu@msc-ge.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:48:24 -04:00
Linus Torvalds
96d185c765 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] memory hotplug: only unassign assigned increments
  [S390] Change default action from reipl to stop for on_restart
  [S390] arch/s390/kernel/ipl.c: correct error detection check
  [S390] drivers/s390/block/dasd_ioctl.c: add missing kfree
  [S390] nss,initrd: kernel image and initrd must be in different segments
2011-08-26 09:28:22 -07:00
Kirill A. Shutemov
a94cc4e6c0 sfi: table irq 0xFF means 'no interrupt'
According to the SFI specification irq number 0xFF means device has no
interrupt or interrupt attached via GPIO.

Currently, we don't handle this special case and set irq field in
*_board_info structs to 255.  It leads to confusion in some drivers.
Accelerometer driver tries to register interrupt 255, fails and prints
"Cannot get IRQ" to dmesg.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-26 09:03:29 -07:00
Linus Torvalds
1e8d4e8be2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (32 commits)
  ALSA: hda: Conexant: Allow different output types to share DAC
  ASoC: Correct element count for WM8996 sidetone HPF
  ASoC: Tegra: wm8903 machine driver: Drop Ventana support
  ASoC: Add samsung maintainer
  ASoC: Add Springbank I/O card to Speyside Kconfig
  ALSA: hda/conexant - Enable ADC-switching for auto-mic mode, too
  ALSA: hda - Fix double-headphone/speaker paths for Cxt auto-parser
  ALSA: hda - Update jack-sense info even when no automute is set
  ALSA: hda - Fix output-path initialization for Realtek auto-parser
  sound/soc/fsl/mpc8610_hpcd.c: add missing of_node_put
  sound/soc/fsl/p1022_ds.c: add missing of_node_put
  sound/soc/ep93xx/ep93xx-i2s.c: add missing kfree
  sound/soc/kirkwood/kirkwood-i2s.c: add missing kfree
  ASoC: soc-core: use GFP_KERNEL flag for kmalloc in snd_soc_cnew
  sound/soc/fsl/fsl_dma.c: add missing of_node_put
  ASoC: Clear completions from late WM8996 FLL lock IRQs
  ASoC: Clear any outstanding WM8962 FLL lock completions before waiting
  ASoC: Ensure we only run Speyside WM8962 bias level callbacks once
  ASoC: Fix configuration of WM8996 input enables
  ASoC: WM8996 record paths need AIFCLK
  ...
2011-08-26 09:01:30 -07:00
Arnd Bergmann
039920ccdd Merge branch 'at91/fixes' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into fixes 2011-08-26 15:34:00 +00:00
Arnd Bergmann
966843eb43 Merge branch 'fixes' of git://git.jdl.com/software/linux-3.0 into fixes 2011-08-26 15:27:34 +00:00
Arnd Bergmann
4a3f4233c5 Merge branch 'samsung/fixes' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into fixes 2011-08-26 15:08:19 +00:00
John W. Linville
e2e6be56df Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2011-08-26 10:33:51 -04:00
Paul Mundt
2d0b579a98 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-fixes-for-linus 2011-08-26 16:49:51 +09:00
Takashi Iwai
26b9b559ed Merge branch 'fix/asoc' into for-linus 2011-08-26 09:29:43 +02:00
Liu Gang-B34182
671ee7f0ce arch/powerpc/sysdev/fsl_rio.c: correct IECSR register clear value
This bug causes the IECSR register clear failure.  In this case, the RETE
(retry error threshold exceeded) interrupt will be generated and cannot be
cleared.  So the related ISR may be called persistently.

The RETE bit in IECSR is cleared by writing a 1 to it.

Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 18:51:06 -07:00
MyungJoo Ham
62d1760180 drivers/rtc/rtc-s3c.c: allow multiple open / allow no-ioctl-open'ed rtc to have irq.
The previous rtc-s3c had two issues related with its IRQ.

1. Users cannot open rtc multiple times because an open operation
   calls request_irq on the same IRQ.  (e.g., two user processes wants to
   open and read RTC time from rtc-s3c at the same time)

2. If alarm is set and no one has the rtc opened with filesystem
   (either the alarm is set by kernel/boot-loader or user set an alarm and
   closed rtc dev file), the pending bit is not cleared and no further
   interrupt is invoked.  When the alarm is used by the system itself such
   as a resume from suspend-to-RAM or other Low-power modes/idle, this is
   a critical issue.

This patch mitigates these issues by calling request_irq at probe and
free_irq at remove.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 18:51:00 -07:00
MyungJoo Ham
4e8896cde1 drivers/rtc/rtc-s3c.c: correct debug messages
RTC-S3C used to print out debug messages incorrectly.  This patch
corrects incorrect outputs.  (undecoded bcd numbers, incorrectly decoded
register values)

This patch affects the pr-debug messages only.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 18:50:43 -07:00
Axel Lin
1424e21f66 drivers/leds/leds-bd2802.c: bd2802_unregister_led_classdev() should unregister all registered leds
bd2802_unregister_led_classdev() should unregister all registered
instances of led_classdev class that had registered by
bd2802_register_led_classdev().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Kim Kyuwon <q1.kim@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:35 -07:00
WANG Cong
02016bc038 cris: add arch/cris/include/asm/serial.h
Fix the following build errors:

  drivers/tty/serial/8250_early.c:160: error: 'BASE_BAUD' undeclared (first use in this function): 1 errors in 1 logs
  drivers/tty/serial/8250_early.c:37:24: error: asm/serial.h: No such file or directory: 1 errors in 1 logs

I am not sure if (1843200 / 16) is suitable for cris, but most other
arch's define it as this value.

Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:35 -07:00
Axel Lin
37b7bf67c3 drivers/misc/ab8500-pwm.c: fix modalias
Since 43cc71eed1 ("platform: prefix MODALIAS with "platform:""), the
platform modalias is prefixed with "platform:".

This patch changes the MODULE_ALIAS to "platform:ab8500-pwm".

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Arun Murthy <arun.murthy@stericsson.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:35 -07:00
Axel Lin
b89d5f17d4 drivers/misc/fsa9480.c: fix a leak of the IRQ during init failure
Make sure we are passing the same cookie in all calls to
request_threaded_irq() and free_irq().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Donggeun Kim <dg77.kim@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:35 -07:00
Axel Lin
c53252b780 backlight: fix module alias prefix for adp8870_bl
This is an i2c driver, not a platform driver, thus use "i2c" prefix for
the module alias.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Dilan Lee
cc7993f643 backlight: add a callback 'notify_after' for backlight control
We need a callback to do some things after pwm_enable, pwm_disable
and pwm_config.

Signed-off-by: Dilan Lee <dilee@nvidia.com>
Reviewed-by: Robert Morell <rmorell@nvidia.com>
Reviewed-by: Arun Murthy <arun.murthy@stericsson.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Johannes Weiner
23751be009 memcg: fix hierarchical oom locking
Commit 79dfdaccd1 ("memcg: make oom_lock 0 and 1 based rather than
counter") tried to oom lock the hierarchy and roll back upon
encountering an already locked memcg.

The code is confused when it comes to detecting a locked memcg, though,
so it would fail and rollback after locking one memcg and encountering
an unlocked second one.

The result is that oom-locking hierarchies fails unconditionally and
that every oom killer invocation simply goes to sleep on the oom
waitqueue forever.  The tasks practically hang forever without anyone
intervening, possibly holding locks that trip up unrelated tasks, too.

Signed-off-by: Johannes Weiner <jweiner@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Axel Lin
86383b5579 leds: add missing include of linux/module.h
Add missing include of linux/module.h for drivers that use interfaces from
linux/module.h.  This patch fixes build errors.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Jonathan McDowell <noodles@earth.li>
Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Cc: Magnus Damm <damm@opensource.se>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Axel Lin
15b1a8f2b9 drivers/video/backlight/ep93xx_bl.c: add missing include of linux/module.h
ep93xx_bl.c uses interfaces from linux/module.h, so it should include
that file.  This patch fixes build errors:

    CC [M]  drivers/video/backlight/ep93xx_bl.o
  drivers/video/backlight/ep93xx_bl.c:138: error: 'THIS_MODULE' undeclared here (not in a function)
  drivers/video/backlight/ep93xx_bl.c:158: error: expected declaration specifiers or '...' before string constant
  drivers/video/backlight/ep93xx_bl.c:158: warning: data definition has no type or storage class
  ...

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Alexandre Bounine
284fb68d00 rapidio: fix use of non-compatible registers
Replace/remove use of RIO v.1.2 registers/bits that are not
forward-compatible with newer versions of RapidIO specification.

RapidIO specification v.1.3 removed Write Port CSR, Doorbell CSR,
Mailbox CSR and Mailbox and Doorbell bits of the PEF CAR.

Use of removed (since RIO v.1.3) register bits affects users of
currently available 1.3 and 2.x compliant devices who may use not so
recent kernel versions.

Removing checks for unsupported bits makes corresponding routines
compatible with all versions of RapidIO specification.  Therefore,
backporting makes stable kernel versions compliant with RIO v.1.3 and
later as well.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Cc: Chul Kim <chul.kim@idt.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Shaohua Li
439423f689 vmscan: clear ZONE_CONGESTED for zone with good watermark
ZONE_CONGESTED is only cleared in kswapd, but pages can be freed in any
task.  It's possible ZONE_CONGESTED isn't cleared in some cases:

 1. the zone is already balanced just entering balance_pgdat() for
    order-0 because concurrent tasks free memory.  In this case, later
    check will skip the zone as it's balanced so the flag isn't cleared.

 2. high order balance fallbacks to order-0.  quote from Mel: At the
    end of balance_pgdat(), kswapd uses the following logic;

	If reclaiming at high order {
		for each zone {
			if all_unreclaimable
				skip
			if watermark is not met
				order = 0
				loop again

			/* watermark is met */
			clear congested
		}
	}

    i.e. it clears ZONE_CONGESTED if it the zone is balanced.  if not,
    it restarts balancing at order-0.  However, if the higher zones are
    balanced for order-0, kswapd will miss clearing ZONE_CONGESTED as
    that only happens after a zone is shrunk.  This can mean that
    wait_iff_congested() stalls unnecessarily.

This patch makes kswapd clear ZONE_CONGESTED during its initial
highmem->dma scan for zones that are already balanced.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Nishanth Aravamudan
4c30c6f566 kernel/printk: do not turn off bootconsole in printk_late_init() if keep_bootcon
It seems that 7bf693951a ("console: allow to retain boot console via
boot option keep_bootcon") doesn't always achieve what it aims, as when
printk_late_init() runs it unconditionally turns off all boot consoles.
With this patch, I am able to see more messages on the boot console in
KVM guests than I can without, when keep_bootcon is specified.

I think it is appropriate for the relevant -stable trees.  However, it's
more of an annoyance than a serious bug (ideally you don't need to keep
the boot console around as console handover should be working -- I was
encountering a situation where the console handover wasn't working and
not having the boot console available meant I couldn't see why).

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg KH <gregkh@suse.de>
Acked-by: Fabio M. Di Nitto <fdinitto@redhat.com>
Cc: <stable@kernel.org>		[2.6.39.x, 3.0.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Wanlong Gao
47331231bb MAINTAINERS: Paul Menage has moved
Paul said: I left Google at the end of last week - if it's not bouncing
already, menage@google.com isn't going to work for much longer.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Paul Menage <paul@paulmenage.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Shaohua Li
f51bdd2e97 mm: fix a vmscan warning
I get the below warning:

  BUG: using smp_processor_id() in preemptible [00000000] code: bash/746
  caller is native_sched_clock+0x37/0x6e
  Pid: 746, comm: bash Tainted: G        W   3.0.0+ #254
  Call Trace:
   [<ffffffff813435c6>] debug_smp_processor_id+0xc2/0xdc
   [<ffffffff8104158d>] native_sched_clock+0x37/0x6e
   [<ffffffff81116219>] try_to_free_mem_cgroup_pages+0x7d/0x270
   [<ffffffff8114f1f8>] mem_cgroup_force_empty+0x24b/0x27a
   [<ffffffff8114ff21>] ? sys_close+0x38/0x138
   [<ffffffff8114ff21>] ? sys_close+0x38/0x138
   [<ffffffff8114f257>] mem_cgroup_force_empty_write+0x17/0x19
   [<ffffffff810c72fb>] cgroup_file_write+0xa8/0xba
   [<ffffffff811522d2>] vfs_write+0xb3/0x138
   [<ffffffff8115241a>] sys_write+0x4a/0x71
   [<ffffffff8114ffd9>] ? sys_close+0xf0/0x138
   [<ffffffff8176deab>] system_call_fastpath+0x16/0x1b

sched_clock() can't be used with preempt enabled.  And we don't need
fast approach to get clock here, so let's use ktime API.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Tested-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:34 -07:00
Thomas Meyer
7e8aa04898 drivers/char/msm_smd_pkt.c: don't use IS_ERR()
The various basic memory allocation function return NULL, not an
ERR_PTR.

The semantic patch that makes this change is available in
scripts/coccinelle/null/eno.cocci.

More information about semantic patching is available at
http://coccinelle.lip6.fr/

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Cc: Niranjana Vishwanathapura <nvishwan@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:33 -07:00
Hui Zhu
30ecad5184 checkpatch: add missing WARN argument for min_t and max_t tests
The test for bad usage of min_t() and max_t() is missing the --ignore
type.  Add it.

Signed-off-by: Hui Zhu <teawater@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:33 -07:00
Ralf Thielow
3d1c2f72a9 scripts/get_maintainer.pl: update Linus's git repository
Change to new git tree -
(git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git).

Signed-off-by: Ralf Thielow <ralf.thielow@googlemail.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:33 -07:00
Johannes Weiner
5af12d0efd memcg: pin execution to current cpu while draining stock
Commit d1a05b6973 ("memcg do not try to drain per-cpu caches without
pages") added a drain_local_stock() call to a preemptible section.

The draining task looks up the cpu-local stock twice to set the
draining-flag, then to drain the stock and clear the flag again.  If the
task is migrated to a different CPU in between, noone will clear the
flag on the first stock and it will be forever undrainable.  Its charge
can not be recovered and the cgroup can not be deleted anymore.

Properly pin the task to the executing CPU while draining stocks.

Signed-off-by: Johannes Weiner <jweiner@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:33 -07:00
Evgeniy Polyakov
a801876638 MAINTAINERS: Evgeniy has moved
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:33 -07:00
Dan Carpenter
5829944925 w1: fix for loop in w1_f29_remove_slave()
The for loop was looking for i <= 0 instead of i >= 0 so this function
never did anything.  Also we started with i = NB_SYSFS_BIN_FILES instead
of "NB_SYSFS_BIN_FILES - 1" which is an off by one bug.

Reported-by: Bojan Prtvar <prtvar.b@gmail.com>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jean-Franois Dagenais <dagenaisj@sonatest.com>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:33 -07:00
Sergei Trofimovich
2df7a7d1cd alpha: unbreak osf_setsysinfo(SSI_NVPAIRS, [SSIN_UACPROC, UAC_SIGBUS])
The bug was accidentally found by the following program:

    #include <asm/sysinfo.h>
    #include <asm/unistd.h>
    #include <sys/syscall.h>
    static int setsysinfo(unsigned long op, void *buffer, unsigned long size,
                          int *start, void *arg, unsigned long flag) {
        return syscall(__NR_osf_setsysinfo, op, buffer, size, start, arg, flag);
    }

    int main(int argc, char **argv) {
        short x[10];
        unsigned int buf[2] = { SSIN_UACPROC, UAC_SIGBUS, };
        setsysinfo(SSI_NVPAIRS, buf, 1, 0, 0, 0);

        int  *y = (int*) (x+1);
        *y = 0;
        return 0;
    }

The program shoud fail on SIGBUS, but didn't.

The patch is a second part of userspace flag fix (commit 745dd2405e
"Alpha: Rearrange thread info flags fixing two regressions").

Deleted outdated out-of-sync 'UAC_SHIFT' (the cause of bug) in favour of
'ALPHA_UAC_SHIFT'.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Acked-by: Michael Cree <mcree@orcon.net.nz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:33 -07:00
Sergei Trofimovich
06ed4625fd drivers/misc/pti.c: add missing includes
Found on allmodconfig build (ARCH=alpha)

    drivers/misc/pti.c: In function 'get_id':
    drivers/misc/pti.c:249: error: implicit declaration of function 'kmalloc'
    drivers/misc/pti.c: In function 'pti_char_write':
    drivers/misc/pti.c:658: error: implicit declaration of function 'copy_from_user'

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: J Freyensee <james_p_freyensee@linux.intel.com>
Cc: Jeremy Rocher <rocher.jeremy@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 16:25:33 -07:00
Andy Lutomirski
b4ca46e4e8 x86-32: Fix boot with CONFIG_X86_INVD_BUG
entry_32.S contained a hardcoded alternative instruction entry, and the
format changed in commit 59e97e4d6f ("x86: Make alternative
instruction pointers relative").

Replace the hardcoded entry with the altinstruction_entry macro.  This
fixes the 32-bit boot with CONFIG_X86_INVD_BUG=y.

Reported-and-tested-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Cc: Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 13:27:14 -07:00
Thomas Jarosch
0de3b48569 drm/i915: Fix wrong initializer for "locked" variable in assert_panel_unlocked
Otherwise it just contains random memory.

Issue detected by cppcheck.

Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-08-25 11:21:20 -07:00
Tejun Heo
cbbfa38fcb mtrr: fix UP breakage caused during switch to stop_machine
While removing custom rendezvous code and switching to stop_machine,
commit 192d885742 ("x86, mtrr: use stop_machine APIs for doing MTRR
rendezvous") completely dropped mtrr setting code on !CONFIG_SMP
breaking MTRR settting on UP.

Fix it by removing the incorrect CONFIG_SMP.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Anders Eriksson <aeriksson@fastmail.fm>
Tested-and-acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 11:02:29 -07:00
Josh Boyer
e096d0c7e2 lockdep: Add helper function for dir vs file i_mutex annotation
Purely in-memory filesystems do not use the inode hash as the dcache
tells us if an entry already exists.  As a result, they do not call
unlock_new_inode, and thus directory inodes do not get put into a
different lockdep class for i_sem.

We need the different lockdep classes, because the locking order for
i_mutex is different for directory inodes and regular inodes.  Directory
inodes can do "readdir()", which takes i_mutex *before* possibly taking
mm->mmap_sem (due to a page fault while copying the directory entry to
user space).

In contrast, regular inodes can be mmap'ed, which takes mm->mmap_sem
before accessing i_mutex.

The two cases can never happen for the same inode, so no real deadlock
can occur, but without the different lockdep classes, lockdep cannot
understand that.  As a result, if CONFIG_DEBUG_LOCK_ALLOC is set, this
can lead to false positives from lockdep like below:

    find/645 is trying to acquire lock:
     (&mm->mmap_sem){++++++}, at: [<ffffffff81109514>] might_fault+0x5c/0xac

    but task is already holding lock:
     (&sb->s_type->i_mutex_key#15){+.+.+.}, at: [<ffffffff81149f34>]
    vfs_readdir+0x5b/0xb4

    which lock already depends on the new lock.

    the existing dependency chain (in reverse order) is:

    -> #1 (&sb->s_type->i_mutex_key#15){+.+.+.}:
          [<ffffffff8108ac26>] lock_acquire+0xbf/0x103
          [<ffffffff814db822>] __mutex_lock_common+0x4c/0x361
          [<ffffffff814dbc46>] mutex_lock_nested+0x40/0x45
          [<ffffffff811daa87>] hugetlbfs_file_mmap+0x82/0x110
          [<ffffffff81111557>] mmap_region+0x258/0x432
          [<ffffffff811119dd>] do_mmap_pgoff+0x2ac/0x306
          [<ffffffff81111b4f>] sys_mmap_pgoff+0x118/0x16a
          [<ffffffff8100c858>] sys_mmap+0x22/0x24
          [<ffffffff814e3ec2>] system_call_fastpath+0x16/0x1b

    -> #0 (&mm->mmap_sem){++++++}:
          [<ffffffff8108a4bc>] __lock_acquire+0xa1a/0xcf7
          [<ffffffff8108ac26>] lock_acquire+0xbf/0x103
          [<ffffffff81109541>] might_fault+0x89/0xac
          [<ffffffff81149cff>] filldir+0x6f/0xc7
          [<ffffffff811586ea>] dcache_readdir+0x67/0x205
          [<ffffffff81149f54>] vfs_readdir+0x7b/0xb4
          [<ffffffff8114a073>] sys_getdents+0x7e/0xd1
          [<ffffffff814e3ec2>] system_call_fastpath+0x16/0x1b

This patch moves the directory vs file lockdep annotation into a helper
function that can be called by in-memory filesystems and has hugetlbfs
call it.

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 10:50:18 -07:00
Linus Torvalds
e33f2d238e Merge branch 'urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback
* 'urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback:
  squeeze max-pause area and drop pass-good area
2011-08-25 10:40:12 -07:00
Linus Torvalds
be5378f3ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/cpupowerutils
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/cpupowerutils:
  cpupower: use man(1) when calling "cpupower help subcommand"
  cpupower: make NLS truly optional
  cpupower: fix Makefile typo
  cpupower: Make monitor command -c/--cpu aware
  cpupower: Better detect offlined CPUs
  cpupower: Do not show an empty Idle_Stats monitor if no idle driver is available
  cpupower: mperf monitor - Use TSC to calculate max frequency if possible
  cpupower: avoid using symlinks
2011-08-25 10:32:18 -07:00
Linus Torvalds
e5b1d9cc1d Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
  hwmon: (i5k_amb) Drop i5k_channel_pci_id
  hwmon: (ntc_thermistor) Simplify if sequence
2011-08-25 10:31:40 -07:00
Linus Torvalds
f385b6974b Merge branch '3.1-rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
* '3.1-rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (21 commits)
  target: Convert acl_node_lock to be IRQ-disabling
  target: Make locking in transport_deregister_session() IRQ safe
  tcm_fc: init/exit functions should not be protected by "#ifdef MODULE"
  target: Print subpage too for unhandled MODE SENSE pages
  iscsi-target: Fix iscsit_allocate_se_cmd_for_tmr failure path bugs
  iscsi-target: Implement iSCSI target IPv6 address printing.
  target: Fix task SGL chaining breakage with transport_allocate_data_tasks
  target: Fix task count > 1 handling breakage and use max_sector page alignment
  target: Add missing DATA_SG_IO transport_cmd_get_valid_sectors check
  target: Fix SYNCHRONIZE_CACHE zero LBA + range breakage
  target: Remove duplicate task completions in transport_emulate_control_cdb
  target: Fix WRITE_SAME usage with transport_get_size
  target: Add WRITE_SAME (10) parsing and refactor passthrough checks
  target: Fix write payload exception handling with ->new_cmd_map
  iscsi-target: forever loop bug in iscsit_attach_ooo_cmdsn()
  iscsi-target: remove duplicate return
  target: Convert target_core_rd.c to use use BUG_ON
  iscsi-target: Fix leak on failure in iscsi_copy_param_list()
  target: Use ERR_CAST inlined function
  target: Make standard INQUIRY return 'not connected' for tpg_virt_lun0
  ...
2011-08-25 10:30:51 -07:00
Andi Kleen
be27425dcc Add a personality to report 2.6.x version numbers
I ran into a couple of programs which broke with the new Linux 3.0
version.  Some of those were binary only.  I tried to use LD_PRELOAD to
work around it, but it was quite difficult and in one case impossible
because of a mix of 32bit and 64bit executables.

For example, all kind of management software from HP doesnt work, unless
we pretend to run a 2.6 kernel.

  $ uname -a
  Linux svivoipvnx001 3.0.0-08107-g97cd98f #1062 SMP Fri Aug 12 18:11:45 CEST 2011 i686 i686 i386 GNU/Linux

  $ hpacucli ctrl all show

  Error: No controllers detected.

  $ rpm -qf /usr/sbin/hpacucli
  hpacucli-8.75-12.0

Another notable case is that Python now reports "linux3" from
sys.platform(); which in turn can break things that were checking
sys.platform() == "linux2":

  https://bugzilla.mozilla.org/show_bug.cgi?id=664564

It seems pretty clear to me though it's a bug in the apps that are using
'==' instead of .startswith(), but this allows us to unbreak broken
programs.

This patch adds a UNAME26 personality that makes the kernel report a
2.6.40+x version number instead.  The x is the x in 3.x.

I know this is somewhat ugly, but I didn't find a better workaround, and
compatibility to existing programs is important.

Some programs also read /proc/sys/kernel/osrelease.  This can be worked
around in user space with mount --bind (and a mount namespace)

To use:

  wget ftp://ftp.kernel.org/pub/linux/kernel/people/ak/uname26/uname26.c
  gcc -o uname26 uname26.c
  ./uname26 program

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-25 10:17:28 -07:00
Jean-Christophe PLAGNIOL-VILLARD
c96fbdd0ab USB: ftdi_sio: add Calao reference board support
Calao use on there dev kits a FT2232 where the port 0 is used for the JTAG and
port 1 for the UART

They use the same VID and PID as FTDI Chip but they program the manufacturer
name in the eeprom

So use this information to detect it

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Gregory Hermant <gregory.hermant@calao-systems.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-25 09:44:50 -07:00
Christoph Hellwig
242d621964 xfs: deprecate the nodelaylog mount option
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
2011-08-25 10:30:05 -05:00
Bryan Wu
9fc2071a65 ARM: mach-footbridge: add missing header file <video/vga.h>
This patch fixes following building error:
--
arch/arm/mach-footbridge/dc21285.c: In function 'dc21285_preinit':
arch/arm/mach-footbridge/dc21285.c:299:2: error: 'vga_base' undeclared (first use in this function)
arch/arm/mach-footbridge/dc21285.c:299:2: note: each undeclared identifier is reported only once for each function it appears in
make[1]: *** [arch/arm/mach-footbridge/dc21285.o] Error 1
--

Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
2011-08-25 09:08:19 -05:00
Bryan Wu
158c0c623a ARM: mach-orion5x: add missing header file <linux/vga.h>
This patch fixed following building error:
--
arch/arm/mach-orion5x/pci.c: In function 'orion5x_pci_sys_setup':
arch/arm/mach-orion5x/pci.c:563:2: error: 'vga_base' undeclared (first use in this function)
arch/arm/mach-orion5x/pci.c:563:2: note: each undeclared identifier is reported only once for each function it appears in
make[1]: *** [arch/arm/mach-orion5x/pci.o] Error 1
make[1]: *** Waiting for unfinished jobs....
--

Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
2011-08-25 09:08:18 -05:00
Paul Gortmaker
5166793feb arm: fix compile failure in orion5x/dns323-setup.c
Upstream commit d5341942d7 "PCI: Make the
struct pci_dev * argument of pci_fixup_irqs const." leaked an extra
"const" into an actual call site (vs a proto/decl) which causes this:

arch/arm/mach-orion5x/dns323-setup.c: In function 'dns323_pci_map_irq':
arch/arm/mach-orion5x/dns323-setup.c:80: error: expected expression before 'const'
arch/arm/mach-orion5x/dns323-setup.c:80: error: too few arguments to function 'orion5x_pci_map_irq'
make[3]: *** [arch/arm/mach-orion5x/dns323-setup.o] Error 1

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
2011-08-25 09:07:31 -05:00
Kevin Hilman
ff35336d3e OMAP: omap_device: only override _noirq methods, not normal suspend/resume
Commit c03f007a8b (OMAP: PM:
omap_device: add system PM methods for PM domain handling) mistakenly
used SET_SYSTEM_SLEEP_PM_OPS() when trying to configure custom methods
for the PM domains noirq methods.  Fix that by setting only the
suspend_noirq and resume_noirq methods with custom versions.

Note that all other PM domain methods (including the "normal"
suspend/resume methods) are populated using USE_PLATFORM_PM_SLEEP_OPS,
which configures them all to the default subsystem (platform_bus)
methods.

Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-08-25 15:31:14 +02:00
Rafael J. Wysocki
64584eb9cd PM / Runtime: Correct documentation of pm_runtime_irq_safe()
The description of pm_runtime_irq_safe() has to be updated to follow
the code after commit 02b2677 (PM / Runtime: Allow _put_sync() from
interrupts-disabled context).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Kevin Hilman <khilman@ti.com>
2011-08-25 15:31:05 +02:00
David Henningsson
468c545885 ALSA: hda: Conexant: Allow different output types to share DAC
Headphones has stopped working for the original reported (a regression
compared to 2.6.38). This is because Speaker and Headphones share the
same DAC, in which case no Headphones volume control was created.
This patch fixes so that both Speaker and Headphones volume
controls are created in such scenario.

BugLink: http://bugs.launchpad.net/bugs/817943
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-25 15:08:03 +02:00
NeilBrown
1b6afa1758 md/linear: avoid corrupting structure while waiting for rcu_free to complete.
I don't know what I was thinking putting 'rcu' after a dynamically
sized array!  The array could still be in use when we call rcu_free()
(That is the point) so we mustn't corrupt it.

Cc: stable@kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
2011-08-25 14:43:53 +10:00
Namhyung Kim
a5bf4df0c8 md: use REQ_NOIDLE flag in md_super_write()
Queue idling is used for the anticipation of immediate
sequencial I/O's but md_super_write() is a kind of one-
shot operation, coupled with md_super_wait(), so the
idling in this case will be just a waste of time.

Specifying REQ_NOIDLE prevents it. Instead of adding
the flag to submit_bio() directly, use pre-defined
macro WRITE_FLUSH_FUA.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2011-08-25 14:43:34 +10:00
NeilBrown
aeb9b21184 md: ensure changes to 'write-mostly' are reflected in metadata.
The 'write-mostly' flag can be changed through sysfs.
With 0.90 metadata, those changes are reflected in the metadata.
For 1.x metadata, they aren't.

So fix super_1_sync to record 'write-mostly' status.

Signed-off-by: NeilBrown <neilb@suse.de>
2011-08-25 14:43:08 +10:00
NeilBrown
5ef56c8fec md: report failure if a 'set faulty' request doesn't.
Sometimes a device will refuse to be set faulty.  e.g. RAID1 will
never let the last working device become faulty.

So check if "md_error()" did manage to set the faulty flag and fail
with EBUSY if it didn't.

Resolves-Debian-Bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=601198
Reported-by: Mike Hommey <mh+reportbug@glandium.org>
Signed-off-by: NeilBrown <neilb@suse.de>
2011-08-25 14:42:51 +10:00
Mathieu Desnoyers
bc909d9ddb sendmmsg/sendmsg: fix unsafe user pointer access
Dereferencing a user pointer directly from kernel-space without going
through the copy_from_user family of functions is a bad idea. Two of
such usages can be found in the sendmsg code path called from sendmmsg,
added by

commit c71d8ebe7a upstream.
commit 5b47b8038f in the 3.0-stable tree.

Usages are performed through memcmp() and memcpy() directly. Fix those
by using the already copied msg_sys structure instead of the __user *msg
structure. Note that msg_sys can be set to NULL by verify_compat_iovec()
or verify_iovec(), which requires additional NULL pointer checks.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@ev0ke.net>
CC: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
CC: Anton Blanchard <anton@samba.org>
CC: David S. Miller <davem@davemloft.net>
CC: stable <stable@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 19:45:03 -07:00
Anton Blanchard
c6f59d13e2 ibmveth: Fix leak when recycling skb and hypervisor returns error
If h_add_logical_lan_buffer returns an error we need to free
the skb.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable <stable@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 17:56:15 -07:00
Eric Dumazet
20e6074eb8 arp: fix rcu lockdep splat in arp_process()
Dave Jones reported a lockdep splat triggered by an arp_process() call
from parp_redo().

Commit faa9dcf793 (arp: RCU changes) is the origin of the bug, since
it assumed arp_process() was called under rcu_read_lock(), which is not
true in this particular path.

Instead of adding rcu_read_lock() in parp_redo(), I chose to add it in
neigh_proxy_process() to take care of IPv6 side too.

 ===================================================
 [ INFO: suspicious rcu_dereference_check() usage. ]
 ---------------------------------------------------
 include/linux/inetdevice.h:209 invoked rcu_dereference_check() without
protection!

 other info that might help us debug this:

 rcu_scheduler_active = 1, debug_locks = 0
 4 locks held by setfiles/2123:
  #0:  (&sb->s_type->i_mutex_key#13){+.+.+.}, at: [<ffffffff8114cbc4>]
walk_component+0x1ef/0x3e8
  #1:  (&isec->lock){+.+.+.}, at: [<ffffffff81204bca>]
inode_doinit_with_dentry+0x3f/0x41f
  #2:  (&tbl->proxy_timer){+.-...}, at: [<ffffffff8106a803>]
run_timer_softirq+0x157/0x372
  #3:  (class){+.-...}, at: [<ffffffff8141f256>] neigh_proxy_process
+0x36/0x103

 stack backtrace:
 Pid: 2123, comm: setfiles Tainted: G        W
3.1.0-0.rc2.git7.2.fc16.x86_64 #1
 Call Trace:
  <IRQ>  [<ffffffff8108ca23>] lockdep_rcu_dereference+0xa7/0xaf
  [<ffffffff8146a0b7>] __in_dev_get_rcu+0x55/0x5d
  [<ffffffff8146a751>] arp_process+0x25/0x4d7
  [<ffffffff8146ac11>] parp_redo+0xe/0x10
  [<ffffffff8141f2ba>] neigh_proxy_process+0x9a/0x103
  [<ffffffff8106a8c4>] run_timer_softirq+0x218/0x372
  [<ffffffff8106a803>] ? run_timer_softirq+0x157/0x372
  [<ffffffff8141f220>] ? neigh_stat_seq_open+0x41/0x41
  [<ffffffff8108f2f0>] ? mark_held_locks+0x6d/0x95
  [<ffffffff81062bb6>] __do_softirq+0x112/0x25a
  [<ffffffff8150d27c>] call_softirq+0x1c/0x30
  [<ffffffff81010bf5>] do_softirq+0x4b/0xa2
  [<ffffffff81062f65>] irq_exit+0x5d/0xcf
  [<ffffffff8150dc11>] smp_apic_timer_interrupt+0x7c/0x8a
  [<ffffffff8150baf3>] apic_timer_interrupt+0x73/0x80
  <EOI>  [<ffffffff8108f439>] ? trace_hardirqs_on_caller+0x121/0x158
  [<ffffffff814fc285>] ? __slab_free+0x30/0x24c
  [<ffffffff814fc283>] ? __slab_free+0x2e/0x24c
  [<ffffffff81204e74>] ? inode_doinit_with_dentry+0x2e9/0x41f
  [<ffffffff81204e74>] ? inode_doinit_with_dentry+0x2e9/0x41f
  [<ffffffff81204e74>] ? inode_doinit_with_dentry+0x2e9/0x41f
  [<ffffffff81130cb0>] kfree+0x108/0x131
  [<ffffffff81204e74>] inode_doinit_with_dentry+0x2e9/0x41f
  [<ffffffff81204fc6>] selinux_d_instantiate+0x1c/0x1e
  [<ffffffff81200f4f>] security_d_instantiate+0x21/0x23
  [<ffffffff81154625>] d_instantiate+0x5c/0x61
  [<ffffffff811563ca>] d_splice_alias+0xbc/0xd2
  [<ffffffff811b17ff>] ext4_lookup+0xba/0xeb
  [<ffffffff8114bf1e>] d_alloc_and_lookup+0x45/0x6b
  [<ffffffff8114cbea>] walk_component+0x215/0x3e8
  [<ffffffff8114cdf8>] lookup_last+0x3b/0x3d
  [<ffffffff8114daf3>] path_lookupat+0x82/0x2af
  [<ffffffff8110fc53>] ? might_fault+0xa5/0xac
  [<ffffffff8110fc0a>] ? might_fault+0x5c/0xac
  [<ffffffff8114c564>] ? getname_flags+0x31/0x1ca
  [<ffffffff8114dd48>] do_path_lookup+0x28/0x97
  [<ffffffff8114df2c>] user_path_at+0x59/0x96
  [<ffffffff811467ad>] ? cp_new_stat+0xf7/0x10d
  [<ffffffff811469a6>] vfs_fstatat+0x44/0x6e
  [<ffffffff811469ee>] vfs_lstat+0x1e/0x20
  [<ffffffff81146b3d>] sys_newlstat+0x1a/0x33
  [<ffffffff8108f439>] ? trace_hardirqs_on_caller+0x121/0x158
  [<ffffffff812535fe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
  [<ffffffff8150af82>] system_call_fastpath+0x16/0x1b

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 17:55:00 -07:00
Eric Dumazet
22df13319d bridge: fix a possible use after free
br_multicast_ipv6_rcv() can call pskb_trim_rcsum() and therefore skb
head can be reallocated.

Cache icmp6_type field instead of dereferencing twice the struct
icmp6hdr pointer.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 17:49:24 -07:00
Yan, Zheng
4b275d7efa bridge: Pseudo-header required for the checksum of ICMPv6
Checksum of ICMPv6 is not properly computed because the pseudo header is not used.
Thus, the MLD packet gets dropped by the bridge.

Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Reported-by: Ang Way Chuang <wcang@sfc.wide.ad.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 17:49:00 -07:00
Yan, Zheng
e05c4ad3ed mcast: Fix source address selection for multicast listener report
Should check use count of include mode filter instead of total number
of include mode filters.

Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 17:46:15 -07:00
Nicolas de Pesloüan
814fd609fa MAINTAINERS: Update GIT trees for network development
Remove -2.6 from net and net-next tree names.

Signed-off-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 17:44:35 -07:00
Linus Torvalds
caca9510ff firmware loader: allow builtin firmware load even if usermodehelper is disabled
In commit a144c6a6c9 ("PM: Print a warning if firmware is requested
when tasks are frozen") we not only printed a warning if somebody tried
to load the firmware when tasks are frozen - we also failed the load.

But that check was done before the check for built-in firmware, and then
when we disallowed usermode helpers during bootup (commit 288d5abec8:
"Boot up with usermodehelper disabled"), that actually means that
built-in modules can no longer load their firmware even if the firmware
is built in too.  Which used to work, and some people depended on it for
the R100 driver.

So move the test for usermodehelper_is_disabled() down, to after
checking the built-in firmware.

This should fix:

	https://bugzilla.kernel.org/show_bug.cgi?id=40952

Reported-by: James Cloos <cloos@hjcloos.com>
Bisected-by: Elimar Riesebieter <riesebie@lxtec.de>
Cc: Michel Dänzer <michel@daenzer.net>
Cc: Rafael Wysocki <rjw@sisk.pl>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-24 15:55:30 -07:00
Linus Torvalds
650cf77d75 Merge branch 'for-31-rc3/i2c-fixes' of git://git.fluff.org/bjdooks/linux
* 'for-31-rc3/i2c-fixes' of git://git.fluff.org/bjdooks/linux:
  i2c-nomadik: fix kerneldoc warning
  Revert "i2c-omap: fix static suspend vs. runtime suspend"
  i2c-nomadik: Do not use _interruptible_ variant call
2011-08-24 15:54:30 -07:00
Linus Walleij
c8d47631a4 i2c-nomadik: fix kerneldoc warning
There was a missing struct item in the kerneldoc, add it and fix
another pretty-printing formatting issue with a missing space.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-08-24 23:28:49 +01:00
Omar Ramirez Luna
1b965f1891 staging: tidspbridge: fix compilation on dsp clock functions
Seen on v3.1-rc3, patch:

omap: mcbsp: Drop in-driver transfer support
bafe2721a0

Removed code that now cause tidspbridge to break while compiling.

Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-24 14:35:26 -07:00
Magnus Damm
5c3f96b209 ARM: mach-shmobile: sh7372 LCDC1 suspend fix
Associate the HDMI clock together with LCDC1 on sh7372.

Without this patch Suspend-to-RAM hangs on the boards
AP4EVB and Mackerel. The code hangs in the LCDC driver
where the software is waiting forever for the hardware to
power down. By explicitly associating the HDMI clock with
LCDC1 we can make sure the HDMI clock is enabled using
Runtime PM whenever the driver is accessing the hardware.

This HDMI and LCDC1 dependency is documented in the sh7372
data sheet. Older kernels did work as expected but the
recently merged (3.1-rc)

 794d78f drivers: sh: late disabling of clocks V2

introduced code to turn off clocks lacking software reference
which happens to include the HDMI clock that is needed by
LCDC1 to operate as expected.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-08-24 22:38:43 +02:00
Rafael J. Wysocki
5a50a01bf0 sh-sci / PM: Use power.irq_safe
Since sci_port_enable() and sci_port_disable() may be run with
interrupts off and they execute pm_runtime_get_sync() and
pm_runtime_put_sync(), respectively, the SCI device's
power.irq_safe flag has to be set to indicate that it is safe
to execute runtime PM callbacks for this device with interrupts off.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>
2011-08-24 21:41:08 +02:00
Rafael J. Wysocki
b7ab83edba PM: Use spinlock instead of mutex in clock management functions
The lock member of struct pm_clk_data is of type struct mutex,
which is a problem, because the suspend and resume routines
defined in drivers/base/power/clock_ops.c cannot be executed
with interrupts disabled for this reason.  Modify
struct pm_clk_data so that its lock member is a spinlock.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>
2011-08-24 21:40:56 +02:00
Linus Torvalds
a53e77fa57 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: wiimote: Add status and return request handlers
  HID: wiimote: Add drm request
  HID: wiimote: Register led class devices
  HID: wiimote: Correctly call HID open/close callbacks
  HID: wiimote: Simplify synchronization
  HID: usbhid: Add support for SiGma Micro chip
  HID: add support for new revision of Apple aluminum keyboard
2011-08-24 11:25:08 -07:00
Mohammed Shafi Shajakhan
8b2a3827bb ath9k: Fix PS wrappers in ath9k_set_coverage_class
this callback is called during suspend/resume and also via iw command.
it configures parameters like sifs, slottime, acktimeout in
ath9k_hw_init_global_settings where few REG_READ, REG_RMW are also done
and hence the need for PS wrappers

Cc: stable@kernel.org
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:52:28 -04:00
Alexey Khoroshilov
66cb54bd24 carl9170: Fix mismatch in carl9170_op_set_key mutex lock-unlock
If is_main_vif(ar, vif) reports that we have to fall back
to software encryption, we goto err_softw; before locking ar->mutex.
As a result, we have unprotected call to carl9170_set_operating_mode
and unmatched mutex_unlock.

The patch fix the issue by adding mutex_lock before goto.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: <stable@kernel.org>
Acked-By: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:52:27 -04:00
Mark Brown
18036b5866 ASoC: Correct element count for WM8996 sidetone HPF
I can count. Honest.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-08-24 17:36:12 +01:00
Linus Torvalds
8554cc18db Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: ad714x - read the interrupt status registers in a row
  Input: ad714x - use DMA-safe buffers for spi_write()
  Input: ad714x - fix endianness issues
  Input: ad714xx-spi - force SPI bus into the default 8-bit mode
  Input: ep93xx_keypad - add missing include of linux/module.h
  Input: tnetv107x-ts - add missing include of linux/module.h
  Input: max11801_ts - correct license statement
  Input: atmel_mxt_ts - report pressure information from the driver
  Input: bcm5974 - Add support for newer MacBookPro8,2
  Input: wacom - report id 3 returns 4 bytes of data
  Input: wacom - add WAC_MSG_RETRIES define
  Input: wacom - add support for the Wacom Bamboo Pen (CTL-660/K)
  Input: tegra-kbc - correct call to input_free_device
  Input: mpu3050 - correct call to input_free_device
  Input: bcm5974 - add support for touchpads found in MacBookAir4,2
  Input: mma8450 - fix module device table type
  Input: remove CLOCK_TICK_RATE from analog joystick driver
2011-08-24 09:19:03 -07:00
Linus Torvalds
051732bcbe Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: check size of FUSE_NOTIFY_INVAL_ENTRY message
  fuse: mark pages accessed when written to
  fuse: delete dead .write_begin and .write_end aops
  fuse: fix flock
  fuse: fix non-ANSI void function notation
2011-08-24 09:14:42 -07:00
Linus Torvalds
2983573e49 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Allow handling signals when stack is corrupted.
2011-08-24 09:13:40 -07:00
Linus Torvalds
2da2c664ec Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits)
  bridge: fix a possible net_device leak
  net: Documentation: RFC 2553bis is now RFC 3493
  atm: br2684: Fix oops due to skb->dev being NULL
  ipv6: Fix ipv6_getsockopt for IPV6_2292PKTOPTIONS
  net: netdev-features.txt update to Documentation/networking/00-INDEX
  vlan: reset headers on accel emulation path
  forcedeth: call vlan_mode only if hw supports vlans
  via-velocity: remove non-tagged packet filtering
  bonding:reset backup and inactive flag of slave
  net_sched: fix port mirror/redirect stats reporting
  sit tunnels: propagate IPv6 transport class to IPv4 Type of Service
  gianfar: reduce stack usage in gianfar_ethtool.c
  net: minor update to Documentation/networking/scaling.txt
  net: add missing entries to Documentation/networking/00-INDEX
  gianfar: prevent buggy hw rx vlan tagging
  net: sh_eth: Fix build by forgot including linux/interrupt.h
  drivers/net/can/sja1000/plx_pci.c: eliminate double free
  usbnet/cdc_ncm: Don't use stack variables for DMA
  vmxnet3: Don't enable vlan filters in promiscuous mode.
  iwlagn: sysfs couldn't find the priv pointer
  ...
2011-08-24 09:11:08 -07:00
Heiko Carstens
8adb4ca344 [S390] memory hotplug: only unassign assigned increments
Make sure that only assigned storage increments are unassigned when
attaching a storage element.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-08-24 17:15:24 +02:00
Michael Holzheu
e1202edadb [S390] Change default action from reipl to stop for on_restart
The main purpose for PSW restart will be kdump. Therefore customers will
issue "system restart" for creating a dump. If kdump is not enabled,
currently "PSW restart" will reboot the system and then no dump can
be created any more. In order to still allow a manual stand-alone dump in
the case a user issues "PSW restart" on a system that has not enabled
kdump we now stop the system.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-08-24 17:15:24 +02:00
Julia Lawall
798620fb1d [S390] arch/s390/kernel/ipl.c: correct error detection check
reipl_fcp_kset was just initialized, so it appears that it should be tested
instead of reipl_kset.

Signed-off-by: Julia Lawall <julia@diku.dk>
Reported-by: Suman Saha <sumsaha@gmail.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-08-24 17:15:24 +02:00
Julia Lawall
ba465d830e [S390] drivers/s390/block/dasd_ioctl.c: add missing kfree
Data is only used to temporarily hold information to be copied to the user
level, so it should be freed before leaving the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@exists@
local idexpression x;
statement S,S1;
expression E;
identifier fl;
expression *ptr != NULL;
@@

x = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...kfree(x)...+> }
     when any
     when != true x == NULL
x->fl
...>
(
if (x == NULL) S1
|
if (...) { ... when != x
               when forall
(
 return \(0\|<+...x...+>\|ptr\);
|
* return ...;
)
}
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-08-24 17:15:23 +02:00
Heiko Carstens
27e7318c3e [S390] nss,initrd: kernel image and initrd must be in different segments
When IPL'ing from a block device and an NSS should be created we must
make sure that the kernel image and the initrd are in different 1MB
segments. Otherwise creating the NSS will fail.
So we make sure the initrd is 4MB behind the end of the kernel image
like we do already when IPL via the VM reader is performed.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-08-24 17:15:23 +02:00
Jiri Kosina
d446014162 Merge branches 'wiimote' and 'upstream-fixes' into for-linus 2011-08-24 16:41:52 +02:00
Jean-Christophe PLAGNIOL-VILLARD
c0764b2a4c at91: at91sam9261.c: fix typo in t2_clk alias for atmel_tcb.0
This was a typo in clockdev declaration for at91sam9261 SoC.
Fix the kernel hanging when switching clocksource to TC (tcb_clksrc).

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Remy Bohmer <linux@bohmer.net>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-08-24 13:10:29 +02:00
Stephen Warren
ee1a4d4b7f ASoC: Tegra: wm8903 machine driver: Drop Ventana support
Board file support for Ventana is not yet mainlined, and probably won't
ever be given the move to Device-Tree. Consequently, the Ventana entry
is being removed from arch/arm/tools/mach-types in the next merge window,
since it was registered over a year ago.

This will also remove function machine_is_ventana(), which is used by
the ASoC Tegra WM8903 machine driver. This will cause compilation
failures. Drop Ventana support to resolve this.

Hopefully, in the not-too-distant future, tegra_wm8903.c will be able to
configure itself from Device-Tree, and hence we'll be able to re-instate
Ventana support just by creating a .dts file for the board.

Also note that Aebl support is in a similar boat. However, that board
isn't scheduled for deprecation for at least another 5 months, and
perhaps we will have completely removed non-Device-Tree support from
tegra_wm8903.c by then and/or adjusted mach-types policy.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-24 10:38:05 +01:00
Sangbeom Kim
250b68512d ASoC: Add samsung maintainer
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-24 10:37:57 +01:00
Joseph Pentland
52c49e0156 ASoC: Add Springbank I/O card to Speyside Kconfig
Signed-off-by: Joseph Pentland <jp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-24 10:37:48 +01:00
Takashi Iwai
7675535958 ALSA: hda/conexant - Enable ADC-switching for auto-mic mode, too
The ADC-switching can work also in the auto-mic mode, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-24 10:53:10 +02:00
Nick Bowler
0ebb962e00 ARM: 7003/1: vexpress: Add clock definition for the SP805.
It seems that an entry for the SP805 watchdog in the table of clocks was
missing.  This results in the sp805_wdt driver rejecting the device with
the following errors:

  sp805-wdt mb:wdt: Clock not found
  sp805-wdt mb:wdt: Probe Failed!!!
  sp805-wdt: probe of mb:wdt failed with error -2

While not obviously stated in the hardware docs, the onboard SP810's
"REFCLK" is connected to a 32.768KHz crystal, and this drives the
watchdog.  Add a struct clk and corresponding lookup entry for it.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-24 09:45:21 +01:00
Miklos Szeredi
c2183d1e9b fuse: check size of FUSE_NOTIFY_INVAL_ENTRY message
FUSE_NOTIFY_INVAL_ENTRY didn't check the length of the write so the
message processing could overrun and result in a "kernel BUG at
fs/fuse/dev.c:629!"

Reported-by: Han-Wen Nienhuys <hanwenn@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@kernel.org
2011-08-24 10:20:17 +02:00
Jean Delvare
b4cb0d4da7 hwmon: (i5k_amb) Drop i5k_channel_pci_id
Function i5k_channel_pci_id looks like it can fail, while a better
code design would make it more obvious that it can't. We can even get
rid of the function.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-08-23 21:04:28 -07:00
Linus Torvalds
14c62e78dc Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86-32, vdso: On system call restart after SYSENTER, use int $0x80
  x86, UV: Remove UV delay in starting slave cpus
  x86, olpc: Wait for last byte of EC command to be accepted
2011-08-23 18:09:08 -07:00
H. Peter Anvin
7ca0758cdb x86-32, vdso: On system call restart after SYSENTER, use int $0x80
When we enter a 32-bit system call via SYSENTER or SYSCALL, we shuffle
the arguments to match the int $0x80 calling convention.  This was
probably a design mistake, but it's what it is now.  This causes
errors if the system call as to be restarted.

For SYSENTER, we have to invoke the instruction from the vdso as the
return address is hardcoded.  Accordingly, we can simply replace the
jump in the vdso with an int $0x80 instruction and use the slower
entry point for a post-restart.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/CA%2B55aFztZ=r5wa0x26KJQxvZOaQq8s2v3u50wCyJcA-Sc4g8gQ@mail.gmail.com
Cc: <stable@kernel.org>
2011-08-23 16:20:10 -07:00
David Daney
048316be72 staging: octeon-ethernet: Add missing #includes.
I looks like something used to implicitly include linux/interrupt.h,
and no longer does.  Fix the resulting build error by explicitly
including it.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 15:35:16 -07:00
Dan Carpenter
1dcab0875b Staging: zcache: signedness bug in tmem_get()
"ret" needs to be signed for the error handling to work properly.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 14:52:20 -07:00
Seth Jennings
c5f5c4db39 staging: zcache: fix crash on high memory swap
zcache_put_page() was modified to pass page_address(page) instead of the
actual page structure. In combination with the function signature changes
to tmem_put() and zcache_pampd_create(), zcache_pampd_create() tries to
(re)derive the page structure from the virtual address.  However, if the
original page is a high memory page (or any unmapped page), this
virt_to_page() fails because the page_address() in zcache_put_page()
returned NULL.

This patch changes zcache_put_page() and zcache_get_page() to pass
the page structure instead of the page's virtual address, which
may or may not exist.

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 14:52:20 -07:00
Ian Campbell
ba8f318471 m68k: fix __page_to_pfn for a const struct page argument
Fixes fallout due to the removal of the cast in commit aa462abe8a
("mm: fix __page_to_pfn for a const struct page argument")

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-23 13:39:48 -07:00
Pieter-Paul Giesberts
20cc7995fe staging: brcm80211: SPARC build error fix
Due to missing memset function declaration.

Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 13:03:09 -07:00
Arend Van Spriel
9818a4775a staging: brcm80211: fix compile error on non-x86 archs since 3.0 kernel
Since the arrival of kernel version 3.0 in the staging tree it
turns out compile error occurs for sparc64, powerpc, and arm
platforms. This patch fixes that issue.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 13:03:08 -07:00
Luciano Coelho
7a5e4877c1 wl12xx: add max_sched_scan_ssids value to the hw description
After commit 5a865ba, we require a separate value to indicate the
number of supported SSIDs in scheduled scans.  This patch adds a
proper value to the wl12xx driver.

This fixes a regression in 3.1-rc3 where scheduled scans were not
working properly with the wl12xx driver.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-23 15:54:20 -04:00
Ido Yariv
a15f1c45f3 wl12xx: Fix validation of pm_runtime_get_sync return value
wl1271_sdio_power_on checks if the return value of pm_runtime_get_sync
is non-zero, and if so bails out.
However, pm_runtime_get_sync can return a positive number which does not
suggest an error has occurred. This is problematic for two reasons:

1. The function will needlessly bail out without decrementing back the
   runtime PM reference counter.
2. wl1271_power_on only checks if wl1271_power_on return value is
   negative. This means that wl1271_power_on will continue even if
   wl1271_sdio_power_on bailed out. As a result, sdio transactions will
   be initiated without properly enabling the sdio function and claiming
   the host. This could even lead to a kernel panic.

Fix this by only checking that the return value of pm_runtime_get_sync
is non-negative.

Signed-off-by: Ido Yariv <ido@wizery.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-23 15:54:20 -04:00
Ido Yariv
80900d0140 wl12xx: Remove obsolete testmode NVS push command
The testmode NVS push command is no longer in use. In addition, it has
several implementation issues that prevent it from working correctly:

1. wl1271_tm_cmd_configure relies on wl->chip.id being set. However,
   since the device was not necessarily booted by the time the function
   is called, wl->chip.id will be initialized to 0.
2. The NVS file is fetched by calling request_firmware() before it is
   possible to push an NVS file.
3. The maximum allowed size of nl binary payloads is not sufficient for
   pushing NVS files.
4. Pushing 128x NVS files will always fail due to a bug in the
   validation code.
5. In case the pushed NVS file is found invalid, the mutex will be kept
   locked and the nvs member will become a dangling pointer.

Since this feature is not being used, remove it completely instead of
fixing it.

Signed-off-by: Ido Yariv <ido@wizery.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-23 15:54:19 -04:00
Kevin Hilman
584b408d37 Revert "i2c-omap: fix static suspend vs. runtime suspend"
This reverts commit adf6e07922.

Remove system PM methods which can race with runtime PM methods.

Also, as of v3.1, the PM domain level code for OMAP handles device
power state transistions automatically for devices, so drivers no
longer need to specifically call the bus/pm_domain methods themselves.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-08-23 20:19:16 +01:00
srinidhi kasagar
4b723a4710 i2c-nomadik: Do not use _interruptible_ variant call
If there is a signal pending and wait_for_completion_interruptible_timeout
exited because of the -ERESTARTSYS error we are unable to send any more
i2c messages.

So, deprecate this _interruptible_ variant call.

Signed-off-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-08-23 20:13:39 +01:00
Linus Torvalds
35a177a08d Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: fix tracing builds inside the source tree
  xfs: remove subdirectories
  xfs: don't expect xfs headers to be in subdirectories
2011-08-23 11:41:44 -07:00
Nick Pelly
b280a97d1c omap-serial: Allow IXON and IXOFF to be disabled.
Fixes logic bug that software flow control cannot be disabled, because
serial_omap_configure_xonxoff() is not called if both IXON and IXOFF bits
are cleared.

Signed-off-by: Nick Pelly <npelly@google.com>
Acked-by: Govindraj.R <govindraj.raja@ti.com>
Tested-by: Govindraj.R <govindraj.raja@ti.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:58:38 -07:00
Linus Torvalds
a76ef86455 Merge git://git.infradead.org/users/cbou/battery-3.1
* git://git.infradead.org/users/cbou/battery-3.1:
  s3c-adc-battery: Fix compilation error due to missing header (module.h)
  max8997_charger: Needs module.h
  max8998_charger: Needs module.h
2011-08-23 10:46:56 -07:00
Linus Torvalds
f70f975468 Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon: Extended DDC Probing for Toshiba L300D Radeon Mobility X1100 HDMI-A Connector
  drm/ttm: ensure ttm for new node is bound before calling move_notify()
  drm/ttm: unbind ttm before destroying node in accel move cleanup
  drm/ttm: fix ttm_bo_add_ttm(user) failure path
  drm/radeon: Make vramlimit parameter actually work.
  drm/radeon: Explicitly print GTT/VRAM offsets on test failure.
  drm/radeon: Take IH ring into account for test size calculation.
  drm/radeon/alpha: Add Alpha support to Radeon DRM code
2011-08-23 10:46:21 -07:00
Linus Torvalds
69dd3d8e29 Revert "irq: Always set IRQF_ONESHOT if no primary handler is specified"
This reverts commit f3637a5f2e.

It turns out that this breaks several drivers, one example being OMAP
boards which use the on-board OMAP UARTs and the omap-serial driver that
will not boot to userspace after the commit.

Paul Walmsley reports that enabling CONFIG_DEBUG_SHIRQ reveals 'IRQ
handler type mismatch' errors:

  IRQ handler type mismatch for IRQ 74
  current handler: serial idle
  ...

and the reason is that setting IRQF_ONESHOT will now result in those
interrupt handlers having different IRQF flags, and thus being
unsharable.  So the commit log in the reverted commit:

                            "Since it is required for those users and
    there is no difference for others it makes sense to add this flag
    unconditionally."

is simply not true: there may not be any difference from a "actions at
irq time", but there is a *big* difference wrt this flag testing irq
management (see __setup_irq() in kernel/irq/manage.c).

One solution may be to stop verifying IRQF_ONESHOT in __setup_irq(), but
right now the safe course of action is to revert the change.  Let's
revisit this in a later merge window.

Reported-by: Paul Walmsley <paul@pwsan.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Requested-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-23 10:36:51 -07:00
Jiri Slaby
0055197e98 TTY: serial, document ignoring of uart->ops->startup error
When a user has SYS_ADMIN capabilities and uart->ops->startup returns
an error in uart_startup, we silently drop the error. We then return 0
and behave as if it didn't fail. (Not quite, since we set TTY_IO_ERROR
bit and leave ASYNC_INITIALIZED bit cleared.)

This all is to allow setserial to work with improperly configured or
unconfigured ports. User can thus set port properties and reconfigure
properly.

This patch only documents this behavior.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russel King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:10:38 -07:00
Jiri Slaby
24d406a6bf TTY: pty, fix pty counting
tty_operations->remove is normally called like:
queue_release_one_tty
 ->tty_shutdown
   ->tty_driver_remove_tty
     ->tty_operations->remove

However tty_shutdown() is called from queue_release_one_tty() only if
tty_operations->shutdown is NULL. But for pty, it is not.
pty_unix98_shutdown() is used there as ->shutdown.

So tty_operations->remove of pty (i.e. pty_unix98_remove()) is never
called. This results in invalid pty_count. I.e. what can be seen in
/proc/sys/kernel/pty/nr.

I see this was already reported at:
  https://lkml.org/lkml/2009/11/5/370
But it was not fixed since then.

This patch is kind of a hackish way. The problem lies in ->install. We
allocate there another tty (so-called tty->link). So ->install is
called once, but ->remove twice, for both tty and tty->link. The fix
here is to count both tty and tty->link and divide the count by 2 for
user.

And to have ->remove called, let's make tty_driver_remove_tty() global
and call that from pty_unix98_shutdown() (tty_operations->shutdown).

While at it, let's document that when ->shutdown is defined,
tty_shutdown() is not called.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:10:38 -07:00
Al Cooper
dbb3b1ca56 8250: Fix race condition in serial8250_backup_timeout().
This is to fix an issue where output will suddenly become very slow.
The problem occurs on 8250 UARTS with the hardware bug UART_BUG_THRE.

BACKGROUND
For normal UARTs (without UART_BUG_THRE): When the serial core layer
gets new transmit data and the transmitter is idle, it buffers the
data and calls the 8250s' serial8250_start_tx() routine which will
simply enable the TX interrupt in the IER register and return. This
should immediately fire a THRE interrupt and begin transmitting the
data.
For buggy UARTs (with UART_BUG_THRE): merely enabling the TX interrupt
in IER does not necessarily generate a new THRE interrupt.
Therefore, a background timer periodically checks to see if there is
pending data, and starts transmission if that is the case.

The bug happens on SMP systems when the system has nothing to transmit,
the transmit interrupt is disabled and the following sequence occurs:
- CPU0: The background timer routine serial8250_backup_timeout()
  starts and saves the state of the interrupt enable register (IER)
  and then disables all interrupts in IER. NOTE: The transmit interrupt
  (TI) bit is saved as disabled.
- CPU1: The serial core gets data to transmit, grabs the port lock and
  calls serial8250_start_tx() which enables the TI in IER.
- CPU0: serial8250_backup_timeout() waits for the port lock.
- CPU1: finishes (with TI enabled) and releases the port lock.
- CPU0: serial8250_backup_timeout() calls the interrupt routine which
  will transmit the next fifo's worth of data and then restores the
  IER from the previously saved value (TI disabled).
At this point, as long as the serial core has more transmit data
buffered, it will not call serial8250_start_tx() again and the
background timer routine will slowly transmit the data.

The fix is to have serial8250_start_tx() get the port lock before
it saves the IER state and release it after restoring IER. This will
prevent serial8250_start_tx() from running in parallel.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:10:37 -07:00
Tomoya MORINAGA
dacacc3e79 serial/8250_pci: delete duplicate data definition
Data definiton "VendorID=10DB, device_id=800D" is already defined.
This patch deletes the duplicate definition.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:06:28 -07:00
Eric Smith
44178176ec 8250_pci: add support for Rosewill RC-305 4x serial port card
This patch adds support for the Rosewill RC-305 four-port PCI serial
card, and probably any other four-port serial cards based on the
Moschip MCS9865 chip, assuming that the EEPROM on the card was
programmed in accordance with Table 6 of the MCS9865 EEPROM
Application Note version 0.3 dated 16-May-2008, available from the
Moschip web site (registration required).

This patch is based on an earlier patch [1] for the SYBA 6x serial
port card by Ira W. Snyder.

[1]: http://www.gossamer-threads.com/lists/linux/kernel/1162435

Signed-off-by: Eric Smith <eric@brouhaha.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:05:10 -07:00
Axel Lin
8c4074cd22 tty: Add "spi:" prefix for spi modalias
Since commit e0626e38 (spi: prefix modalias with "spi:"),
the spi modalias is prefixed with "spi:".

This patch adds "spi:" prefix and removes "-spi" suffix in the modalias.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:02:01 -07:00
Takashi Iwai
1f015f5fdc ALSA: hda - Fix double-headphone/speaker paths for Cxt auto-parser
When multiple headphones or speakers are assigned but no individual
DACs are available, the driver should take the first HP/SPK DAC instead
of another primary output.  The patch adds a bit-flag to dac field of
struct pin_dac_pair indicating that it's a slave DAC.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 14:57:08 +02:00
Thomas Reim
f2b60717e6 drm/radeon: Extended DDC Probing for Toshiba L300D Radeon Mobility X1100 HDMI-A Connector
Toshiba Satellite L300D with ATI Mobility Radeon X1100 sends data
   to i2c bus for a HDMI connector that is not implemented/existent
   on the notebook's board.

   Fix by applying extented DDC probing for this connector.

   Requires [PATCH] drm/radeon: Extended DDC Probing for Connectors
   with Improperly Wired DDC Lines

   Tested for kernel 2.6.38 on Toshiba Satellite L300D notebook

   BugLink: http://bugs.launchpad.net/bugs/826677

Signed-off-by: Thomas Reim <reimth@gmail.com>
Acked-by: Chris Routh <routhy@gmail.com>
Cc: <stable@kernel.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-23 13:24:55 +01:00
Takashi Iwai
3c715a9884 ALSA: hda - Update jack-sense info even when no automute is set
The internal states, jack_present and line_jack_present should be
updated upon unsolicited events even if no automute is set.
Otherwise the wrong state is referred when the automute behavior is
changed by the mixer control.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 12:41:09 +02:00
Takashi Iwai
675c1aa3c4 ALSA: hda - Fix output-path initialization for Realtek auto-parser
When the headphone or speaker output has no own DAC, initialize the path
using the primary DAC.  Otherwise the path won't be set properly and
can result in the silence.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 12:36:28 +02:00
David Herrmann
c87019e41d HID: wiimote: Add status and return request handlers
The wiimote resets the current drm when an extension is plugged in.
Fortunately, it also sends a status report in this situation so we just
reset the drm on every status report to keep the drm consistent.

Also handle return reports from the wiimote which indicate success and
failure of requests that we've sent.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:55:45 +02:00
David Herrmann
2cb5e4bc53 HID: wiimote: Add drm request
The wiimote reports data in several data reporting modes (DRM). The DRM
request makes the wiimote send data in the requested drm.

The DRM mode can be set explicitely or can be chosen by the driver. To let
the driver choose the DRM mode, pass WIIPROTO_REQ_NULL placeholder to it. This
is no valid request and is replaced with an appropriate DRM.

Currently, the driver always sets the basic DRM_K mode, but this will be
extended when further peripherals like accelerometer and IR are supported.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:55:34 +02:00
David Herrmann
23a5a4a39e HID: wiimote: Register led class devices
This registers 4 led devices to allow controlling the wiimote leds via standard
LED sysfs API. It removes the four sysfs attributes so we don't have two APIs
for one device.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:55:21 +02:00
David Herrmann
26af17484a HID: wiimote: Correctly call HID open/close callbacks
Even though the bluetooth hid backend does not react on open/close callbacks, we
should call them to be consistent with other hid drivers.

Also the new input open/close handlers will be used in future to prepare the
wiimote device for IR/extension input.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:55:11 +02:00
David Herrmann
3989ef6cfb HID: wiimote: Simplify synchronization
The new locking scheme in HID core allows us to remove a bit of synchronization.
Since the HID layer acts synchronously we simply register input core last and
there are no synchonization issues anymore.
Also register sysfs files after that to simplify the code.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:54:59 +02:00
Ben Skeggs
8d3bb23609 drm/ttm: ensure ttm for new node is bound before calling move_notify()
This was true for new TTM_PL_SYSTEM and new TTM_PL_TT cases, but wasn't
the case on TTM_PL_SYSTEM<->TTM_PL_TT moves, which causes trouble on some
paths as nouveau's move_notify() hook requires that the dma addresses be
valid at this point.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-23 09:38:30 +01:00
Ben Skeggs
eac2095398 drm/ttm: unbind ttm before destroying node in accel move cleanup
Nouveau makes the assumption that if a TTM is bound there will be a mm_node
around for it and the backwards ordering here resulted in a use-after-free
on some eviction paths.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-23 09:35:16 +01:00
Marcin Slusarz
7c4c3960df drm/ttm: fix ttm_bo_add_ttm(user) failure path
ttm_tt_destroy kfrees passed object, so we need to nullify
a reference to it.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: stable@kernel.org
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-23 09:34:18 +01:00
Jeremiah Matthey
f5e4282586 HID: usbhid: Add support for SiGma Micro chip
Patch to add SiGma Micro-based keyboards (1c4f:0002) to hid-quirks.

These keyboards dont seem to allow the records to be initialized, and hence a
timeout occurs when the usbhid driver attempts to initialize them. The patch
just adds the signature for these keyboards to the hid-quirks list with the
setting HID_QUIRK_NO_INIT_REPORTS. This removes the 5-10 second wait for the
timeout to occur.

Signed-off-by: Jeremiah Matthey <sprg86@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 09:44:30 +02:00
Eric Dumazet
11f3a6bdc2 bridge: fix a possible net_device leak
Jan Beulich reported a possible net_device leak in bridge code after
commit bb900b27a2 (bridge: allow creating bridge devices with netlink)

Reported-by: Jan Beulich <JBeulich@novell.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-22 16:49:56 -07:00
Chris Boot
0278ccd9d5 firewire: sbp2: fix panic after rmmod with slow targets
If firewire-sbp2 starts a login to a target that doesn't complete ORBs
in a timely manner (and has to retry the login), and the module is
removed before the operation times out, you end up with a null-pointer
dereference and a kernel panic.

[SR:  This happens because sbp2_target_get/put() do not maintain
module references.  scsi_device_get/put() do, but at occasions like
Chris describes one, nobody holds a reference to an SBP-2 sdev.]

This patch cancels pending work for each unit in sbp2_remove(), which
hopefully means there are no extra references around that prevent us
from unloading. This fixes my crash.

Signed-off-by: Chris Boot <bootc@bootc.net>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2011-08-23 00:44:35 +02:00
Julia Lawall
c09f5ca7bd sound/soc/fsl/mpc8610_hpcd.c: add missing of_node_put
The first change is to add an of_node_put, since codec_np has previously
been allocated.  The rest of the patch reorganizes the error handling code
so the only code executed is that which is needed.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != of_node_put(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 of_node_put(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Timur Tabi <timur@freescale.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-22 23:29:17 +01:00
Julia Lawall
178b279b64 sound/soc/fsl/p1022_ds.c: add missing of_node_put
dma_channel_np has been accessed at this point, so decrease its reference
count before leaving the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != of_node_put(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 of_node_put(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-22 23:29:16 +01:00
Julia Lawall
5006b31328 sound/soc/ep93xx/ep93xx-i2s.c: add missing kfree
Introduce a new label that includes kfree and jump to that one.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Alexander Sverdlin <subaparts@yandex.ru>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-22 23:28:42 +01:00
Julia Lawall
96101bd0bf sound/soc/kirkwood/kirkwood-i2s.c: add missing kfree
Adjust the goto to jump to the error handling code that includes kfree.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-22 23:26:56 +01:00
Axel Lin
57cf9d4512 ASoC: soc-core: use GFP_KERNEL flag for kmalloc in snd_soc_cnew
GFP_ATOMIC is not needed here, use GFP_KERNEL instead.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-22 23:26:46 +01:00
Timur Tabi
81a081fff7 sound/soc/fsl/fsl_dma.c: add missing of_node_put
of_parse_phandle increments the reference count of np, so this should be
decremented before trying the next possibility.

Since we don't actually use np, we can decrement the reference count
immediately.

Reported-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-22 23:26:33 +01:00
Kamal Mostafa
a2cc797d2d i915: do not setup intel_backlight twice
The commit "Not all systems expose a firmware or platform mechanism for
changing the backlight intensity on i915, so add native driver support"
adds calls to  intel_panel_setup_backlight() from intel_{lvds,dp}_init
so do not call it again from intel_setup_outputs().

BugLink: http://bugs.launchpad.net/bugs/831542

Signed-off-by: Kamal Mostafa <kamal@canonical.com>
ACKed-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-08-22 14:59:35 -07:00
Christoph Hellwig
b6bede3b4c xfs: fix tracing builds inside the source tree
The code really requires the current source directory to be in the
header search path.  We already do this if building with an object
tree separate from the source, but it needs to be added manually
if building inside the source.  The cflags addition for it accidentally
got removed when collapsing the xfs directory structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
2011-08-22 16:37:24 -05:00
Voss, Nikolaus
0d0a3cc183 atmel_serial: fix atmel_default_console_device
reflect new static uart platform ids introduced by patch
http://article.gmane.org/gmane.linux.kernel/1126105

Signed-off-by: Nikolaus Voss <n.voss@weinmann.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:18:44 -07:00
Bjorn Helgaas
ab8ba3a2d2 serial: 8250_pnp: add Intermec CV60 touchscreen device
It would have been nice if Intermec had supplied a PNP0501 _CID for the
COM3 device, but they didn't, so we have to recognize it explicitly.

Reference: https://bugzilla.kernel.org/show_bug.cgi?id=40612
CC: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable <stable@kernel.org>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:18:44 -07:00
Kumar Gala
181d5762bd drivers/serial/ucc_uart.c: Fix compiler warning
drivers/tty/serial/ucc_uart.c: In function 'qe2cpu_addr':
drivers/tty/serial/ucc_uart.c:238:2: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'dma_addr_t'

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:18:43 -07:00
Tomoya MORINAGA
6c4b47d243 pch_uart: Set PCIe bus number using probe parameter
Currently, PCIe bus number is set as fixed value "2".
However, PCIe bus number is not always "2".
This patch sets bus number using probe() parameter.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:18:42 -07:00
Pavan Savoy
651d62a8b0 drivers:misc: ti-st: fix unexpected UART close
If suppose the UIM were to die and hence UART were to close when the
Bluetooth/FM or GPS is turned on, prep the ST for a state where-in if
the UIM comes back up, Bluetooth/FM/GPS can be turned on.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:13:35 -07:00
Pavan Savoy
76ff0e64d4 drivers:misc: ti-st: free skb on firmware download
If during validation of the firmware download the data doesn't match what is
expected out of the chip, this calls for a firmware download failure and a
retry.
Free the SKB which collects response during such scenarios.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:13:34 -07:00
Pavan Savoy
d0344ef670 drivers:misc: ti-st: wait for completion at fail
When the line discipline install fails for reasons such as missing user-space
UIM or broken communication between UIM and ST driver, then the ST
attempts/retries to request for ldisc installation again.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:13:34 -07:00
Pavan Savoy
2f81a02ce0 drivers:misc: ti-st: reinit completion before send
download firmware behaves differently at different times, when logs are
enabled and the system is loaded, the wait_for_completion is able to wait for
every send, However during other times the wait does not happen.

So, for reliability reinitializing the completion before every send, makes
sure the wait happens for every send.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:13:33 -07:00
Vijay Badawadagi
78bb9697e2 drivers:misc: ti-st: fail-safe on wrong pkt type
Texas Instrument's shared transport driver interpret incoming data from the
UART based on the various protocol drivers registered to the driver such as
btwilink driver or FM or GPS driver which provide logical channel IDs.

In case of bad-behavior from chip such as HCI Event response for a GPS command
or a HCI Event (h/w error event) for a FM response & In case of bad-behavior
from UART driver such as dropping data bytes a fail-safe is required to avoid
kernel panic.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Vijay Badawadagi <bvijay@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:13:33 -07:00
Pavan Savoy
74a4fcf19e drivers:misc: ti-st: reinit completion on ver read
After the version information has been read, the completion which assists in
wait_for_completion during the firmware send/wait sequence is being re-used
and hence this needs to be re-initialised for fool proof firmware download
retries.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:13:32 -07:00
Pavan Savoy
0d7c5f2572 drivers:misc:ti-st: platform hooks for chip states
Certain platform specific or Host-WiLink Interface specific actions would be
required to be taken when the chip is being enabled and after the chip is
disabled such as configuration of the mux modes for the GPIO of host connected
to the nshutdown of the chip or relinquishing UART after the chip is disabled.

Similar actions can also be taken when the chip is in deep sleep or when the
chip is awake. Performance enhancements such as configuring the host to run
faster when chip is awake and slower when chip is asleep can also be made
here.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:13:32 -07:00
Pavan Savoy
5926cef26c drivers:misc: ti-st: avoid a misleading dbg msg
Previously the private data of each protocol registered to use ST was
used to determine whether the protocol was registered to use shared
transport or otherwise.
However, now a flag is_registered is maintained to identify whether a
protocol intends to use ST.
Upon closing of the UART the error message relevant to this lack of
un-registration was misleading and this patch fixes that.

Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:13:31 -07:00
H Hartley Sweeten
86ec67fd0a base/devres.c: quiet sparse noise about context imbalance
devres_release_all and devres_release_group both aquire the lock
&dev->devres_lock but the release of that lock is done in release_nodes.
This results in sparse noise about context imbalance.

Add a lock annotation to release_nodes to quiet this noise.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:12:24 -07:00
Heiko Carstens
8ea95e0871 pti: add missing CONFIG_PCI dependency
allmodconfig compile fails on s390 because of the new PTI driver:

drivers/misc/pti.c:407:3: error: implicit declaration of function 'pci_iounmap'
drivers/misc/pti.c:410:3: error: implicit declaration of function 'pci_release_region'

Add a 'depends on PCI' statement so it doesn't get compiled.

Cc: J Freyensee <james_p_freyensee@linux.intel.com>

Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 14:12:23 -07:00
Guenter Roeck
858a914324 hwmon: (ntc_thermistor) Simplify if sequence
Replace unnecessary if with else statement.

This fixes the following (false) compile warning reported with some combinations
of C compiler version and configuration.

drivers/hwmon/ntc_thermistor.c: In function 'ntc_show_temp':
drivers/hwmon/ntc_thermistor.c:225: warning: 'low' may be used uninitialized in
this function
drivers/hwmon/ntc_thermistor.c:225: note: 'low' was declared here
drivers/hwmon/ntc_thermistor.c:225: warning: 'high' may be used uninitialized in
this function
drivers/hwmon/ntc_thermistor.c:225: note: 'high' was declared here
drivers/hwmon/ntc_thermistor.c:294: warning: 'temp' may be used uninitialized in
this function

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2011-08-22 14:04:05 -07:00
Andrew Bird
6118514e87 USB option driver K3765/K4505 avoid CDC_DATA interface
Currently the Option driver avoids binding interface 1 on Huawei K3765
and K4505 broadband modems as it should be handled by the cdc_ether
driver instead. This patch ensures we don't bind the interface 2
on those devices as that is CDC_DATA.

Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 13:55:51 -07:00
Gavin.zhu
c6eb2d75ff USB: option: add YUGA device id to driver
Signed-off-by: Gavin.zhu <gavin.kx@qq.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 13:51:53 -07:00
Yulgon Kim
e5d3d4463f usb: s5p-ehci: fix a NULL pointer deference
This patch fixes a NULL pointer deference. A NULL pointer
dereference happens since s5p_ehci->hcd field is not initialized
yet in probe function.

[jg1.han@samsung.com: edit commit message]
Signed-off-by: Yulgon Kim <yulgon.kim@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 13:38:52 -07:00
Wang Zhi
d0f2fb2500 USB: EHCI: Do not rely on PORT_SUSPEND to stop USB resuming in ehci_bus_resume().
From EHCI Spec p.28 HC should clear PORT_SUSPEND when SW clears
PORT_RESUME. In Intel Oaktrail platform, MPH (Multi-Port Host
Controller) core clears PORT_SUSPEND directly when SW sets PORT_RESUME
bit. If we rely on PORT_SUSPEND bit to stop USB resume, we will miss
the action of clearing PORT_RESUME. This will cause unexpected long
resume signal on USB bus.

Signed-off-by: Wang Zhi <zhi.wang@windriver.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 13:38:52 -07:00
Andrew Bird
7e1805844d USB option driver add PID of Huawei Vodafone K4605
This patch adds the product ID of Huawei's Vodafone K4605 mobile broadband
modem to option.c. This is necessary so that the driver gets loaded on
demand without the intervention of usb_modeswitch. This has the benefit of
it becoming available faster and also ensures that the option driver is not
bound to a network interface that should be claimed by suitable network
driver.

Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk>
Signed-off-by: Alex Chiang <achiang@canonical.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 13:38:51 -07:00
Andrew Bird
0e69d75ccb USB option driver add PID of Huawei Vodafone K3806
This patch adds the product ID of Huawei's Vodafone K3806 mobile broadband
modem to option.c. This is necessary so that the driver gets loaded on
demand without the intervention of usb_modeswitch. This has the benefit of
it becoming available faster and also ensures that the option driver is not
bound to a network interface that should be claimed by cdc_ether.

Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk>
Signed-off-by: Alex Chiang <achiang@canonical.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-22 13:38:50 -07:00
Greg Kroah-Hartman
b978d51ac3 Merge branch 'for-greg' of master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb into usb-linus
* 'for-greg' of master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb:
  usb: musb: gadget: fix error path
  usb: gadget: f_phonet: unlock in error case
  usb: musb: blackfin: include prefetch head file
  usb: musb: tusb6010: fix compilation
  usb: gadget: renesas_usbhs: fix DMA build by including dma-mapping.h
  usb: musb: cppi: fix build errors due to DBG and missing musb variable
  usb: musb: ux500: replace missing DBG with dev_dbg
  usb: musb: ux500: set dma config for both src and dst
  usb: musb: fix oops on musb_gadget_pullup
  usb: host: ehci-omap: fix .remove and failure handling path of .probe(v1)
  usb: gadget: hid: don't STALL when processing a HID Descriptor request
  usb: musb: fix Kconfig
  usb: musb: tusb6010_omap: fix build failure: error: 'musb' undeclared
  usb: gadget: composite: fix bMaxPacketSize for SuperSpeed
  usb: gadget: fusb300: remove #if 0 block
  usb: gadget: s3c2410_udc: fix unterminated platform_device_id table
2011-08-22 13:20:31 -07:00
Greg Kroah-Hartman
ea8c7fd9b0 Merge branch 'for-usb-linus' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus
* 'for-usb-linus' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
  xhci: Handle zero-length isochronous packets.
  USB: Avoid NULL pointer deref in usb_hcd_alloc_bandwidth.
  xhci: Remove TDs from TD lists when URBs are canceled.
  xhci: Fix failed enqueue in the middle of isoch TD.
  xhci: Fix memory leak during failed enqueue.
  xHCI: report USB2 port in resuming as suspend
  xHCI: fix port U3 status check condition
2011-08-22 13:17:04 -07:00
David S. Miller
832d80acea Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-08-22 12:32:05 -07:00
Roland Dreier
28638887f3 target: Convert acl_node_lock to be IRQ-disabling
With qla2xxx, acl_node_lock is taken inside qla2xxx's hardware_lock,
which is taken in hardirq context.  This means acl_node_lock must become
an IRQ-disabling lock; in particular this fixes lockdep warnings along
the lines of

    ======================================================
    [ INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected ]

     (&(&se_tpg->acl_node_lock)->rlock){+.....}, at: [<ffffffffa026f872>] transport_deregister_session+0x92/0x140 [target_core_mod]

    and this task is already holding:
     (&(&ha->hardware_lock)->rlock){-.-...}, at: [<ffffffffa017c5e7>] qla_tgt_stop_phase1+0x57/0x2c0 [qla2xxx]
    which would create a new lock dependency:
     (&(&ha->hardware_lock)->rlock){-.-...} -> (&(&se_tpg->acl_node_lock)->rlock){+.....}

    but this new dependency connects a HARDIRQ-irq-safe lock:
     (&(&ha->hardware_lock)->rlock){-.-...}

    to a HARDIRQ-irq-unsafe lock:
     (&(&se_tpg->acl_node_lock)->rlock){+.....}

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:28:36 +00:00
Roland Dreier
e63a8e1933 target: Make locking in transport_deregister_session() IRQ safe
At least the tcm_qla2xxx fabric driver calls into transport_deregister_session()
while holding an IRQ-disabled spinlock, so the inner locking needs to
use spin_lock_irqsave() instead of spin_lock_bh().

This fixes warnings seen with tcm_qla2xxx like:

    WARNING: at kernel/softirq.c:159 local_bh_enable_ip+0x98/0xb0()
    Call Trace:
     [<ffffffff8104e65f>] warn_slowpath_common+0x7f/0xc0
     [<ffffffff8104e6ba>] warn_slowpath_null+0x1a/0x20
     [<ffffffff81055368>] local_bh_enable_ip+0x98/0xb0
     [<ffffffff814d5284>] _raw_spin_unlock_bh+0x14/0x20
     [<ffffffffa027b7f6>] transport_deregister_session+0x96/0x180 [target_core_mod]
     [<ffffffffa00f7731>] tcm_qla2xxx_free_session+0xd1/0x170 [tcm_qla2xxx]
     [<ffffffffa01b9173>] qla_tgt_sess_put+0xc3/0x140 [qla2xxx]
     [<ffffffffa01bf40f>] qla_tgt_stop_phase1+0x8f/0x2c0 [qla2xxx]
     [<ffffffffa00f735e>] tcm_qla2xxx_tpg_store_enable+0x6e/0xd0 [tcm_qla2xxx]
     [<ffffffffa026ca29>] target_fabric_tpg_attr_store+0x39/0x40 [target_core_mod]
     [<ffffffffa00a575d>] configfs_write_file+0xbd/0x120 [configfs]
     [<ffffffff811464a6>] vfs_write+0xc6/0x180
     [<ffffffff811467c1>] sys_write+0x51/0x90
     [<ffffffff814dd382>] system_call_fastpath+0x16/0x1b

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:33 +00:00
Roland Dreier
4e0f05297f tcm_fc: init/exit functions should not be protected by "#ifdef MODULE"
There's no need for the #ifdef protection when building into the kernel,
and in fact we need the module_init() for the initialization function to
be called.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:32 +00:00
Roland Dreier
f15ea5780d target: Print subpage too for unhandled MODE SENSE pages
Make a log message more useful by printing both the page and subpage
that an initiator is requesting.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:31 +00:00
Dan Carpenter
ba77366963 iscsi-target: Fix iscsit_allocate_se_cmd_for_tmr failure path bugs
This patch fixes two bugs in allocation failure handling in
iscsit_allocate_se_cmd_for_tmr():

This first reported by DanC is a free-after call to transport_free_se_cmd(), this
patch drops the transport_free_se_cmd() call all together, as iscsit_release_cmd()
will release existing allocations as expected.

The second is a bug where iscsi_cmd_t was being leaked on a cmd->tmr_req allocation
failure, so make this jump to iscsit_release_cmd() as well.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:30 +00:00
Chris Boot
6626a05726 iscsi-target: Implement iSCSI target IPv6 address printing.
The iSCSI target configfs code to print out an initiator's IPv6 address
is not fully implemented. This patch uses snprintf() with the "%pI6c"
format string to format the IPv6 address for display purposes.

Signed-off-by: Chris Boot <bootc@bootc.net>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:29 +00:00
Nicholas Bellinger
c3c74c7a33 target: Fix task SGL chaining breakage with transport_allocate_data_tasks
This patch fixes two bugs associated with transport_do_task_sg_chain()
operation where transport_allocate_data_tasks() was incorrectly setting
task_padded_sg for all tasks, and causing bogus task->task_sg_nents
assignments + OOPsen with fabrics depending upon this code.  The first bit
here adds a task_sg_nents_padded check in transport_allocate_data_tasks()
to include an extra SGL vector when necessary for tasks that expect to
be linked using sg_chain().

The second change involves making transport_do_task_sg_chain() properly
account for the extra SGL vector when task->task_padded_sg is set for
the non trailing ->task_sg or single ->task_sg allocations.  Note this
patch also removes the BUG_ON(!task->task_padded_sg) check within
transport_do_task_sg_chain() as we expect this to happen normally
with the updated logic in transport_allocate_data_tasks(), along with
being bogus for CONTROL_SG_IO_CDB type payloads.

So far this bugfix has been tested with tcm_qla2xxx and iblock backends
in (task_count > 1)( and (task_count == 1) operation.

Reported-by: Kiran Patil <kiran.patil@intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:28 +00:00
Nicholas Bellinger
525a48a21d target: Fix task count > 1 handling breakage and use max_sector page alignment
This patch addresses recent breakage with multiple se_task (task_count > 1)
operation following backend dev->se_sub_dev->se_dev_attrib.max_sectors in new
transport_allocate_data_tasks() code.  The initial bug here was a bogus
task->task_sg_nents assignment in transport_allocate_data_tasks() based on
the passed parameter, which now uses DIV_ROUND_UP(task_size, PAGE_SIZE) to
determine the proper number of per task SGL entries for the (task_count > 1)
case.

This also means we now need to enforce a PAGE_SIZE aligned max_sector count
value for this to work as expected without bringing back the pre v3.1
transport_map_mem_to_sg() logic to handle SGL offsets across multiple tasks.
So this patch adds se_dev_align_max_sectors() to round down max_sectors as
necessary to ensure this alignment via se_dev_set_default_attribs() and
se_dev_align_max_sectors() and keeps it simple for (task_count > 1)
operation.

So far this bugfix has been tested with (task_count > 1) operation
using iscsi-target and iblock backends.

Reported-by: Chris Boot <bootc@bootc.net>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:27 +00:00
Nicholas Bellinger
01cde4d543 target: Add missing DATA_SG_IO transport_cmd_get_valid_sectors check
This patch adds the missing transport_cmd_get_valid_sectors() check for
SCF_SCSI_DATA_SG_IO_CDB type payloads to ensure that a received LBA + range
does not exeed past the end of associated backend struct se_device.

This patch also fixes a bug in the failure path of transport_new_cmd_obj()
where this check can fail, so change to use a signed 'rc' and return '-EINVAL'
to signal proper transport_generic_request_failure() handling.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:26 +00:00
Nicholas Bellinger
7abbe7f3e4 target: Fix SYNCHRONIZE_CACHE zero LBA + range breakage
This patch fixes a SYNCHRONIZE_CACHE CDB handling bug with IBLOCK/FILEIO
backends where transport_cmd_get_valid_sectors() was incorrectly rejecting
a zero LBA + range CDB from being processed, and returning CHECK_CONDITION.

This includes changing transport_cmd_get_valid_sectors() to return '0' on
success and '-EINVAL' on failure (this makes more sense than sectors),
and to only check transport_cmd_get_valid_sectors() when a non zero LBA +
range SYNCHRONIZE_CACHE operation has been receieved for the non passthrough
case.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:25 +00:00
Nicholas Bellinger
72f4ba1e32 target: Remove duplicate task completions in transport_emulate_control_cdb
This patch removes a duplicate set of transport_complete_task() calls in
target_emulate_unmap() and target_emulate_write_same() as the completion
call is already done within transport_emulate_control_cdb()

This patch also adds a check in transport_emulate_control_cdb() for the
existing SCF_EMULATE_CDB_ASYNC flag currently used by SYNCHRONIZE_CACHE
in order to handle IMMEDIATE processing.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:23 +00:00
Nicholas Bellinger
12850626e2 target: Fix WRITE_SAME usage with transport_get_size
For all flavours of WRITE_SAME, we only expect to handle a single block
of data-out buffer payload, regardless of the number of logical blocks
presented in the CDB.  This patch changes all flavours of WRITE_SAME in
transport_generic_cmd_sequencer() to pass '1' into transport_get_size()
instead of the extracted 'sectors' to properly handle the default usage
of sg_write_same without the --xferlen parameter.

Reported-by: Eric Seppanen <eric@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
2011-08-22 19:26:22 +00:00
Nicholas Bellinger
706d586096 target: Add WRITE_SAME (10) parsing and refactor passthrough checks
This patch adds initial WRITE_SAME (10) w/ UNMAP=1 support following updates in
sbcr26 to allow UNMAP=1 for the non 16 + 32 byte CDB case.  It also refactors
current pSCSI passthrough passthrough checks into target_check_write_same_discard()
ahead of UNMAP=0 w/ write payload support into target_core_iblock.c.

This includes the support for handling WRITE_SAME in transport_emulate_control_cdb(),
and converts target_emulate_write_same to accept num_blocks directly for
WRITE_SAME, WRITE_SAME_16 and WRITE_SAME_32.

Reported-by: Eric Seppanen <eric@purestorage.com>
Cc: Roland Dreier <roland@purestorage.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
2011-08-22 19:26:21 +00:00
Nicholas Bellinger
16ab8e60a0 target: Fix write payload exception handling with ->new_cmd_map
This patch fixes a bug for fabrics using tfo->new_cmd_map() that
are expect transport_generic_request_failure() to be calling
transport_send_check_condition_and_sense() for both READ and WRITE,
instead of only for READ exceptions.

This was originally observed with a failed WRITE_SAME_16 w/ unmap=0
using tcm_loop.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:20 +00:00
Dan Carpenter
387e96c052 iscsi-target: forever loop bug in iscsit_attach_ooo_cmdsn()
This patch fixes a forever loop bug in iscsit_attach_ooo_cmdsn()
while walking sess->sess_ooo_cmdsn_list when the received
CmdSN is less than the tail of the list.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:19 +00:00
Dan Carpenter
c2337c7091 iscsi-target: remove duplicate return
We returned on the line before already.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:18 +00:00
Julia Lawall
6fc6148865 target: Convert target_core_rd.c to use use BUG_ON
Use BUG_ON(x) rather than if(x) BUG();

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ identifier x; @@
-if (x) BUG();
+BUG_ON(x);

@@ identifier x; @@
-if (!x) BUG();
+BUG_ON(!x);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:17 +00:00
Jesper Juhl
9be08c5804 iscsi-target: Fix leak on failure in iscsi_copy_param_list()
We leak memory if the allocations for 'new_param->name' or
'new_param->value' fail in iscsi_target_parameters.c::iscsi_copy_param_list()

We also do a lot of variable assignments that are completely pointless
if the allocations fail.

So, let's move the allocations before the assignments and also make
sure that we free whatever was allocated to one if the allocation fail.

There's also some small CodingStyle fixups in there (curly braces on
both branches of if statement, only one variable per line) since I was
in the area anyway. And finally, error messages in the function are
put on a single line for easy grep'abillity.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:16 +00:00
Thomas Meyer
e1750ba20f target: Use ERR_CAST inlined function
Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))

The semantic patch that makes this output is available
in scripts/coccinelle/api/err_cast.cocci.

More information about semantic patching is available at
http://coccinelle.lip6.fr/

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-08-22 19:26:15 +00:00
Nicholas Bellinger
052605c6ca target: Make standard INQUIRY return 'not connected' for tpg_virt_lun0
This patch changes target_emulate_inquiry_std() to set the 'not connected'
(0x35) bit in standard INQUIRY response data when we are processing a
request to a virtual LUN=0 mapping from struct se_device *g_lun0_dev that
have been setup for us in transport_lookup_cmd_lun().

This addresses an issue where qla2xxx FC clients need to be able
to create demo-mode I_T FC Nexuses by default, but should not be
exposing the default set of TPG LUNs to all FC clients.  This includes
adding an new optional target_core_fabric_ops->tpg_check_demo_mode_login_only()
caller to allow demo_mode nexuses to skip the old default of bulding
a demo-mode MappedLUNs list via core_tpg_add_node_to_devs().

(roland: Add missing tpg_check_demo_mode_login_only check in core_dev_add_lun)

Reported-by: Roland Dreier <roland@purestorage.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
2011-08-22 19:25:35 +00:00
Linus Torvalds
fcb8ce5cfe Linux 3.1-rc3 2011-08-22 11:42:53 -07:00
Geoffrey Thomas
d5c073caf0 net: Documentation: RFC 2553bis is now RFC 3493
Signed-off-by: Geoffrey Thomas <geofft@mit.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-22 11:28:57 -07:00
Linus Torvalds
8f6544edb2 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf tools: Add group event scheduling option to perf record/stat
  MAINTAINERS: Fix list of perf events source files
  perf tools: Fix build against newer glibc
  perf tools: Fix error handling of unknown events
  perf evlist: Fix missing event name init for default event
  perf list: Fix exit value
2011-08-22 11:26:56 -07:00
Linus Torvalds
4762e252f4 Merge branch 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/tracing: Fix tracing config option properly
  xen: Do not enable PV IPIs when vector callback not present
  xen/x86: replace order-based range checking of M2P table by linear one
  xen: xen-selfballoon.c needs more header files
2011-08-22 11:25:44 -07:00
David Woodhouse
886b66ef2f bcma: add uevent to the bus, to autoload drivers
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:21:41 -04:00
Senthil Balasubramanian
b503c7a273 ath9k_hw: Fix STA (AR9485) bringup issue due to incorrect MAC address
Due to some recent optimization done in the way the mac address
bytes are written into the OTP memory, some AR9485 chipsets were
forced to use the first byte from the eeprom template and the
remaining bytes are read from OTP.

AR9485 happens to use generic eeprom template which has 0x1 as
the first byte causes issues in bringing up the card.

So fixed the eeprom template accordingly to address the issue.

Cc: stable@kernel.org
Cc: Paul Stewart <pstew@google.com>
Signed-off-by: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:21:41 -04:00
Stanislaw Gruszka
543cc38c8f rt2x00: do not drop usb dev reference counter on suspend
When hibernating ->resume may not be called by usb core, but disconnect
and probe instead, so we do not increase the counter after decreasing
it in ->supend. As a result we free memory early, and get crash when
unplugging usb dongle.

BUG: unable to handle kernel paging request at 6b6b6b9f
IP: [<c06909b0>] driver_sysfs_remove+0x10/0x30
*pdpt = 0000000034f21001 *pde = 0000000000000000
Pid: 20, comm: khubd Not tainted 3.1.0-rc1-wl+ #20 LENOVO 6369CTO/6369CTO
EIP: 0060:[<c06909b0>] EFLAGS: 00010202 CPU: 1
EIP is at driver_sysfs_remove+0x10/0x30
EAX: 6b6b6b6b EBX: f52bba34 ECX: 00000000 EDX: 6b6b6b6b
ESI: 6b6b6b6b EDI: c0a0ea20 EBP: f61c9e68 ESP: f61c9e64
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process khubd (pid: 20, ti=f61c8000 task=f6138270 task.ti=f61c8000)
Call Trace:
 [<c06909ef>] __device_release_driver+0x1f/0xa0
 [<c0690b20>] device_release_driver+0x20/0x40
 [<c068fd64>] bus_remove_device+0x84/0xe0
 [<c068e12a>] ? device_remove_attrs+0x2a/0x80
 [<c068e267>] device_del+0xe7/0x170
 [<c06d93d4>] usb_disconnect+0xd4/0x180
 [<c06d9d61>] hub_thread+0x691/0x1600
 [<c0473260>] ? wake_up_bit+0x30/0x30
 [<c0442a39>] ? complete+0x49/0x60
 [<c06d96d0>] ? hub_disconnect+0xd0/0xd0
 [<c06d96d0>] ? hub_disconnect+0xd0/0xd0
 [<c0472eb4>] kthread+0x74/0x80
 [<c0472e40>] ? kthread_worker_fn+0x150/0x150
 [<c0809b3e>] kernel_thread_helper+0x6/0x10

Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:21:40 -04:00
Stanislaw Gruszka
ecb4433550 mac80211: fix suspend/resume races with unregister hw
Do not call ->suspend, ->resume methods after we unregister wiphy. Also
delete sta_clanup timer after we finish wiphy unregister to avoid this:

WARNING: at lib/debugobjects.c:262 debug_print_object+0x85/0xa0()
Hardware name: 6369CTO
ODEBUG: free active (active state 0) object type: timer_list hint: sta_info_cleanup+0x0/0x180 [mac80211]
Modules linked in: aes_i586 aes_generic fuse bridge stp llc autofs4 sunrpc cpufreq_ondemand acpi_cpufreq mperf ext2 dm_mod uinput thinkpad_acpi hwmon sg arc4 rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac80211 cfg80211 i2c_i801 iTCO_wdt iTCO_vendor_support e1000e ext4 mbcache jbd2 sd_mod crc_t10dif sr_mod cdrom yenta_socket ahci libahci pata_acpi ata_generic ata_piix i915 drm_kms_helper drm i2c_algo_bit video [last unloaded: microcode]
Pid: 5663, comm: pm-hibernate Not tainted 3.1.0-rc1-wl+ #19
Call Trace:
 [<c0454cfd>] warn_slowpath_common+0x6d/0xa0
 [<c05e05e5>] ? debug_print_object+0x85/0xa0
 [<c05e05e5>] ? debug_print_object+0x85/0xa0
 [<c0454dae>] warn_slowpath_fmt+0x2e/0x30
 [<c05e05e5>] debug_print_object+0x85/0xa0
 [<f8a808e0>] ? sta_info_alloc+0x1a0/0x1a0 [mac80211]
 [<c05e0bd2>] debug_check_no_obj_freed+0xe2/0x180
 [<c051175b>] kfree+0x8b/0x150
 [<f8a126ae>] cfg80211_dev_free+0x7e/0x90 [cfg80211]
 [<f8a13afd>] wiphy_dev_release+0xd/0x10 [cfg80211]
 [<c068d959>] device_release+0x19/0x80
 [<c05d06ba>] kobject_release+0x7a/0x1c0
 [<c07646a8>] ? rtnl_unlock+0x8/0x10
 [<f8a13adb>] ? wiphy_resume+0x6b/0x80 [cfg80211]
 [<c05d0640>] ? kobject_del+0x30/0x30
 [<c05d1a6d>] kref_put+0x2d/0x60
 [<c05d056d>] kobject_put+0x1d/0x50
 [<c08015f4>] ? mutex_lock+0x14/0x40
 [<c068d60f>] put_device+0xf/0x20
 [<c069716a>] dpm_resume+0xca/0x160
 [<c04912bd>] hibernation_snapshot+0xcd/0x260
 [<c04903df>] ? freeze_processes+0x3f/0x90
 [<c049151b>] hibernate+0xcb/0x1e0
 [<c048fdc0>] ? pm_async_store+0x40/0x40
 [<c048fe60>] state_store+0xa0/0xb0
 [<c048fdc0>] ? pm_async_store+0x40/0x40
 [<c05d0200>] kobj_attr_store+0x20/0x30
 [<c0575ea4>] sysfs_write_file+0x94/0xf0
 [<c051e26a>] vfs_write+0x9a/0x160
 [<c0575e10>] ? sysfs_open_file+0x200/0x200
 [<c051e3fd>] sys_write+0x3d/0x70
 [<c080959f>] sysenter_do_call+0x12/0x28

Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:21:40 -04:00
John W. Linville
4475a0a93f Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/padovan/bluetooth 2011-08-22 14:20:09 -04:00
John W. Linville
eb18fa5bdb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2011-08-22 14:16:07 -04:00
Michael Hennerich
9eff794b77 Input: ad714x - read the interrupt status registers in a row
The interrupt status registers should be read in row to avoid invalid data.

Alter "read" method for both bus options to allow reading several registers
in a row and make sure we read interrupt status registers properly.

Read sequence saves 50% of bus transactions compared to single register
reads. So use it also for the result registers, which are also located
in a row.

Also update copyright notice.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-22 09:59:26 -07:00
Dmitry Torokhov
c0409feb86 Input: ad714x - use DMA-safe buffers for spi_write()
spi_write() requires use of DMA-safe (cacheline aligned) buffers.
Also use the same buffers when reading data since to avoid extra
locking and potential memory allocation in spi_write_then_read().

Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-22 09:59:20 -07:00
Michael Hennerich
6337de2204 Input: ad714x - fix endianness issues
Allow driver to be used on Big Endian boxes.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-22 09:59:12 -07:00
Michael Hennerich
5b9063b19c Input: ad714xx-spi - force SPI bus into the default 8-bit mode
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-22 09:59:06 -07:00
Jeremy Fitzhardinge
60c5f08e15 xen/tracing: Fix tracing config option properly
Steven Rostedt says we should use CONFIG_EVENT_TRACING.

Cc:Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-08-22 11:28:33 -04:00
Stefano Stabellini
3c05c4bed4 xen: Do not enable PV IPIs when vector callback not present
Fix regression for HVM case on older (<4.1.1) hypervisors caused by

  commit 99bbb3a84a
  Author: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
  Date:   Thu Dec 2 17:55:10 2010 +0000

    xen: PV on HVM: support PV spinlocks and IPIs

This change replaced the SMP operations with event based handlers without
taking into account that this only works when the hypervisor supports
callback vectors. This causes unexplainable hangs early on boot for
HVM guests with more than one CPU.

BugLink: http://bugs.launchpad.net/bugs/791850

CC: stable@kernel.org
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Tested-and-Reported-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-08-22 11:28:09 -04:00
Eric Bénard
0d6cfa3a75 ARM: 7051/1: cpuimx* boards: fix mach-types errors
I made some changes to the entry in the ARM Machine Registry after
submission which was the wrong thing to do.
This patch should help to fix this error.

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-22 15:57:22 +01:00
Mark Brown
a41619455c ASoC: Clear completions from late WM8996 FLL lock IRQs
In case we have a pending completion, for example due to a problem with
the input clock which got corrected after we timed out.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-08-22 13:57:35 +01:00
Mark Brown
4df0cb2fa9 ASoC: Clear any outstanding WM8962 FLL lock completions before waiting
Ensure that we don't spuriously trigger early.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-08-22 12:45:11 +01:00
Mark Brown
f79e7ff852 ASoC: Ensure we only run Speyside WM8962 bias level callbacks once
We get called once per DAPM context but only need to run once. When DAPM
was serialized this was a series of noops but now it can run in parallel
we need to take proper care.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-08-22 12:40:31 +01:00
Mark Brown
7691cd74c5 ASoC: Fix configuration of WM8996 input enables
There's no need for separate widgets for the enables (as the map already
shows).

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-08-22 12:36:52 +01:00
Mark Brown
4f41adfd8c ASoC: WM8996 record paths need AIFCLK
Make AIFCLK supply the record paths otherwise record will not work unless
there is a simultaneous playback.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-08-22 12:36:20 +01:00
Michel Dänzer
ba95c45a78 drm/radeon: Make vramlimit parameter actually work.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-22 09:55:19 +01:00
Michel Dänzer
4fb1a35c01 drm/radeon: Explicitly print GTT/VRAM offsets on test failure.
Otherwise these would need to be painstakingly calculated looking at the source
code.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-22 09:54:52 +01:00
Michel Dänzer
24cae9e7c9 drm/radeon: Take IH ring into account for test size calculation.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-22 09:54:12 +01:00
Jay Estabrook
ffb57c4b86 drm/radeon/alpha: Add Alpha support to Radeon DRM code
Alpha needs to have available the system bus address for the Radeon's
local memory, so that it can be used in ttm_bo_vm_fault(), when building
the PTEs for accessing that VRAM.  So, we make bus.addr hold the ioremap()
return, and then we can modify bus.base appropriately for use during page
fault processing.

Signed-off-by: Jay Estabrook <jay.estabrook@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-22 09:31:08 +01:00
Linus Torvalds
3210d190dc Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: core: handle ack_busy when fetching the Config ROM
2011-08-21 18:13:19 -07:00
Axel Lin
b9cc510b39 Input: ep93xx_keypad - add missing include of linux/module.h
ep93xx_keypad.c uses interfaces from linux/module.h,
so it should include that file.  This patch fixes build errors.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-21 12:49:45 -07:00
Axel Lin
2782a35132 Input: tnetv107x-ts - add missing include of linux/module.h
tnetv107x-ts.c uses interfaces from linux/module.h,
so it should include that file.  This patch fixes build errors.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-21 12:49:41 -07:00
Josef Bacik
6719db6a23 Btrfs: fix 64 bit divide problem
This fixes a regression introduced by commit cdcb725c05 ("Btrfs: check
if there is enough space for balancing smarter").  We can't do 64-bit
divides on 32-bit architectures.

In cases where we need to divide/multiply by 2 we should just left/right
shift respectively, and in cases where theres N number of devices use
do_div.  Also make the counters u64 to match up with rw_devices.
Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Acked-and-tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-21 07:02:00 -07:00
Linus Torvalds
c063d8a60f Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: flush any pending end_io requests before DIO reads w/dioread_nolock
  ext4: fix nomblk_io_submit option so it correctly converts uninit blocks
  ext4: Resolve the hang of direct i/o read in handling EXT4_IO_END_UNWRITTEN.
  ext4: call ext4_ioend_wait and ext4_flush_completed_IO in ext4_evict_inode
  ext4: Fix ext4_should_writeback_data() for no-journal mode
2011-08-21 06:59:41 -07:00
Linus Torvalds
79058c4b9e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: sound/aoa/fabrics/layout.c: remove unneeded kfree
  ALSA: hda - Fix error check from snd_hda_get_conn_index() in patch_cirrus.c
  ALSA: hda - Don't spew too many ELD errors
  ALSA: usb-audio - Fix missing mixer dB information
  ALSA: hda - Add "PCM" volume to vmaster slave list
  ALSA: hda - Fix duplicated capture-volume creation for ALC268 models
  ALSA: ac97: Add HP Compaq dc5100 SFF(PT003AW) to Headphone Jack Sense whitelist
  ALSA: snd_usb_caiaq: track submitted output urbs
2011-08-21 06:59:02 -07:00
Randy Dunlap
47c08f3107 pci: fix new kernel-doc warning in pci.c
Fix new kernel-doc warning in pci.c:

  Warning(drivers/pci/pci.c:3259): No description found for parameter 'mps'
  Warning(drivers/pci/pci.c:3259): Excess function parameter 'rq' description in 'pcie_set_mps'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-20 18:02:32 -07:00
David S. Miller
5598473a5b sparc: Allow handling signals when stack is corrupted.
If we can't push the pending register windows onto the user's stack,
we disallow signal delivery even if the signal would be delivered on a
valid seperate signal stack.

Add a register window save area in the signal frame, and store any
unsavable windows there.

On sigreturn, if any windows are still queued up in the signal frame,
try to push them back onto the stack and if that fails we kill the
process immediately.

This allows the debug/tst-longjmp_chk2 glibc test case to pass.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-20 17:14:54 -07:00
Jiejing Zhang
d70d43d7d7 Input: max11801_ts - correct license statement
The original license statement was confusing since it was unclear if
the license was pure GPLv2 or GPLv2+ and did not match the license
of the driver max11801_ts was derived from. The license is GPLv2+.

Signed-off-by: Jiejing Zhang <jiejing.zhang@freescale.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-20 14:39:53 -07:00
Daniel Schwierzeck
fbe5e29ec1 atm: br2684: Fix oops due to skb->dev being NULL
This oops have been already fixed with commit

    27141666b6

    atm: [br2684] Fix oops due to skb->dev being NULL

    It happens that if a packet arrives in a VC between the call to open it on
    the hardware and the call to change the backend to br2684, br2684_regvcc
    processes the packet and oopses dereferencing skb->dev because it is
    NULL before the call to br2684_push().

but have been introduced again with commit

    b6211ae7f2

    atm: Use SKB queue and list helpers instead of doing it by-hand.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-20 14:13:05 -07:00
Julia Lawall
de75577c8c ALSA: sound/aoa/fabrics/layout.c: remove unneeded kfree
The label outnodev is only used when kzalloc has not yet taken place or has
failed, so there is no need for the call for kfree under this label.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
expression E1!=0,E2,E3,E4;
statement S;
iterator I;
@@

(
if (...) { ... when != kfree(x)
               when != x = E3
               when != E3 = x
*  return ...;
 }
... when != x = E2
    when != I(...,x,...) S
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-20 09:27:04 +02:00
Takashi Iwai
1b004d03d8 ALSA: hda - Fix error check from snd_hda_get_conn_index() in patch_cirrus.c
snd_hda_get_conn_index() returns a negative value while the current code
stores it in an unsigned int.  It must be stored in a signed integer.

Reported-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-20 09:24:54 +02:00
Takashi Iwai
b6acf013bd ALSA: hda - Don't spew too many ELD errors
Currently HD-audio driver shows the all error ELD byte as an error
in the kernel message.  This is annoying when the video driver doesn't
set the correct ELD from the beginning. e.g. radeon sends a zero-byte
data, but we still check ELD with the fixed 128 byte as a workaround
for some broken devices, it spews 128-times errors.

For avoiding this, the driver aborts reading when the first byte is
invalid.  In such a case, the whole data is certainly invalid.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-20 09:23:10 +02:00
Linus Torvalds
bed8cad959 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel:
  drm/i915: set GFX_MODE to pre-Ivybridge default value even on Ivybridge
2011-08-19 23:07:08 -07:00
Jiaying Zhang
dccaf33fa3 ext4: flush any pending end_io requests before DIO reads w/dioread_nolock
There is a race between ext4 buffer write and direct_IO read with
dioread_nolock mount option enabled. The problem is that we clear
PageWriteback flag during end_io time but will do
uninitialized-to-initialized extent conversion later with dioread_nolock.
If an O_direct read request comes in during this period, ext4 will return
zero instead of the recently written data.

This patch checks whether there are any pending uninitialized-to-initialized
extent conversion requests before doing O_direct read to close the race.
Note that this is just a bandaid fix. The fundamental issue is that we
clear PageWriteback flag before we really complete an IO, which is
problem-prone. To fix the fundamental issue, we may need to implement an
extent tree cache that we can use to look up pending to-be-converted extents.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
2011-08-19 19:13:32 -04:00
Jesse Barnes
b095cd0a0c drm/i915: set GFX_MODE to pre-Ivybridge default value even on Ivybridge
Prior to Ivybridge, the GFX_MODE would default to 0x800, meaning that
MI_FLUSH would flush the TLBs in addition to the rest of the caches
indicated in the MI_FLUSH command.  However starting with Ivybridge, the
register defaults to 0x2800 out of reset, meaning that to invalidate the
TLB we need to use PIPE_CONTROL.  Since we're not doing that yet, go
back to the old default so things work.

v2: don't forget to actually *clear* the new bit

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-19 11:57:12 -07:00
Linus Torvalds
5ccc38740a Merge branch 'for-linus' of git://git.kernel.dk/linux-block
* 'for-linus' of git://git.kernel.dk/linux-block: (23 commits)
  Revert "cfq: Remove special treatment for metadata rqs."
  block: fix flush machinery for stacking drivers with differring flush flags
  block: improve rq_affinity placement
  blktrace: add FLUSH/FUA support
  Move some REQ flags to the common bio/request area
  allow blk_flush_policy to return REQ_FSEQ_DATA independent of *FLUSH
  xen/blkback: Make description more obvious.
  cfq-iosched: Add documentation about idling
  block: Make rq_affinity = 1 work as expected
  block: swim3: fix unterminated of_device_id table
  block/genhd.c: remove useless cast in diskstats_show()
  drivers/cdrom/cdrom.c: relax check on dvd manufacturer value
  drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse
  bsg-lib: add module.h include
  cfq-iosched: Reduce linked group count upon group destruction
  blk-throttle: correctly determine sync bio
  loop: fix deadlock when sysfs and LOOP_CLR_FD race against each other
  loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices
  loop: add management interface for on-demand device allocation
  loop: replace linked list of allocated devices with an idr index
  ...
2011-08-19 10:47:07 -07:00
Linus Torvalds
0c3bef6128 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: OF: Don't crash when bridge parent is NULL.
  PCI: export pcie_bus_configure_settings symbol
  PCI: code and comments cleanup
  PCI: make cardbus-bridge resources optional
  PCI: make SRIOV resources optional
  PCI : ability to relocate assigned pci-resources
  PCI: honor child buses add_size in hot plug configuration
  PCI: Set PCI-E Max Payload Size on fabric
2011-08-19 10:02:37 -07:00
Vasily Khoruzhick
815efa1eab s3c-adc-battery: Fix compilation error due to missing header (module.h)
Add linux/module.h to fix this compilation error:

drivers/power/s3c_adc_battery.c:435:15: error: expected declaration specifiers or ‘...’ before string constant
drivers/power/s3c_adc_battery.c:435:1: warning: data definition has no type or storage class
drivers/power/s3c_adc_battery.c:435:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_AUTHOR’
drivers/power/s3c_adc_battery.c:435:15: warning: function declaration isn’t a prototype
drivers/power/s3c_adc_battery.c:436:20: error: expected declaration specifiers or ‘...’ before string constant
drivers/power/s3c_adc_battery.c:436:1: warning: data definition has no type or storage class
drivers/power/s3c_adc_battery.c:436:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_DESCRIPTION’
drivers/power/s3c_adc_battery.c:436:20: warning: function declaration isn’t a prototype
drivers/power/s3c_adc_battery.c:437:16: error: expected declaration specifiers or ‘...’ before string constant
drivers/power/s3c_adc_battery.c:437:1: warning: data definition has no type or storage class
drivers/power/s3c_adc_battery.c:437:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_LICENSE’
drivers/power/s3c_adc_battery.c:437:16: warning: function declaration isn’t a prototype
make[2]: *** [drivers/power/s3c_adc_battery.o] Error 1

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Ian Lartey <ian@opensource.wolfsonmicro.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-08-19 21:01:46 +04:00
Axel Lin
71aa79a8c2 max8997_charger: Needs module.h
power/max8997_charger.c uses interfaces from linux/module.h,
so it should include that file.  This fixes build errors.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-08-19 21:01:41 +04:00
Randy Dunlap
d555ab6bb3 max8998_charger: Needs module.h
power/max8998_charger.c uses interfaces from linux/module.h,
so it should include that file.  This fixes build errors.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-08-19 20:56:58 +04:00
David Daney
69566dd8be PCI: OF: Don't crash when bridge parent is NULL.
In pcibios_get_phb_of_node(), we will crash while booting if
bus->bridge->parent is NULL.

Check for this case and avoid dereferencing the NULL pointer.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-19 08:51:37 -07:00
Dominik Brodowski
498ca793d9 cpupower: use man(1) when calling "cpupower help subcommand"
Instead of printing something non-formatted to stdout, call
man(1) to show the man page for the proper subcommand.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-19 17:13:56 +02:00
Dominik Brodowski
47c336307a cpupower: make NLS truly optional
Loosely based on a patch for cpufrequtils, submittted by
Sergey Dryabzhinsky <sergey.dryabzhinsky@gmail.com> and

signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-19 17:00:02 +02:00
Dave Jones
63b37de128 cpupower: fix Makefile typo
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-19 16:49:49 +02:00
Wu Fengguang
bb0822954a squeeze max-pause area and drop pass-good area
Revert the pass-good area introduced in ffd1f609ab ("writeback:
introduce max-pause and pass-good dirty limits") and make the max-pause
area smaller and safe.

This fixes ~30% performance regression in the ext3 data=writeback
fio_mmap_randwrite_64k/fio_mmap_randrw_64k test cases, where there are
12 JBOD disks, on each disk runs 8 concurrent tasks doing reads+writes.

Using deadline scheduler also has a regression, but not that big as CFQ,
so this suggests we have some write starvation.

The test logs show that

- the disks are sometimes under utilized

- global dirty pages sometimes rush high to the pass-good area for
  several hundred seconds, while in the mean time some bdi dirty pages
  drop to very low value (bdi_dirty << bdi_thresh).  Then suddenly the
  global dirty pages dropped under global dirty threshold and bdi_dirty
  rush very high (for example, 2 times higher than bdi_thresh). During
  which time balance_dirty_pages() is not called at all.

So the problems are

1) The random writes progress so slow that they break the assumption of
   the max-pause logic that "8 pages per 200ms is typically more than
   enough to curb heavy dirtiers".

2) The max-pause logic ignored task_bdi_thresh and thus opens the possibility
   for some bdi's to over dirty pages, leading to (bdi_dirty >> bdi_thresh)
   and then (bdi_thresh >> bdi_dirty) for others.

3) The higher max-pause/pass-good thresholds somehow leads to the bad
   swing of dirty pages.

The fix is to allow the task to slightly dirty over task_bdi_thresh, but
no way to exceed bdi_dirty and/or global dirty_thresh.

Tests show that it fixed the JBOD regression completely (both behavior
and performance), while still being able to cut down large pause times
in balance_dirty_pages() for single-disk cases.

Reported-by: Li Shaohua <shaohua.li@intel.com>
Tested-by: Li Shaohua <shaohua.li@intel.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
2011-08-19 22:42:07 +08:00
Naveen Krishna Chatradhi
5d747c6f2c ARM: S5P: fix bug in spdif_clk_get_rate
Should be passing the parent clk object when
calling for parent rate.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 21:21:08 +09:00
Kyungmin Park
d2edddf2b2 ARM: EXYNOS4: Add restart hook for proper reboot
This is required to use SWRESET.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 21:21:08 +09:00
Yulgon Kim
2b431ff74a ARM: EXYNOS4: Increase reset delay for USB HOST PHY
This patch increases reset delay from 50 usec to 80 usec for
USB HOST PHY. In order to reset USB HOST PHY controller properly,
a little extra time is required during its reset cycle.

Signed-off-by: Yulgon Kim <yulgon.kim@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:39 +09:00
Marek Szyprowski
3f6065dd9d ARM: S5P: add required chained_irq_enter/exit to gpio-int code
This patch adds chained IRQ enter/exit functions to gpio interrupt
handler in order to function correctly on primary controllers with
different methods of flow control.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:38 +09:00
Marek Szyprowski
70b0e82bc7 ARM: EXYNOS4: add required chained_irq_enter/exit to eint code
This patch adds chained IRQ enter/exit functions to external interrupt
handler in order to function correctly on primary controllers with
different methods of flow control.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:37 +09:00
Marek Szyprowski
995b528ad2 ARM: SAMSUNG: Add chained enrty/exit call to timer interrupt handler
This patch adds chained IRQ enter/exit functions to timer
interrupt handler in order to function correctly on primary
controllers with different methods of flow control.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:37 +09:00
Abhilash Kesavan
f98d429d7a ARM: S3C64XX: Fix build break in PM debug
When S3C_PM_DEBUG_LED_SMDK is enabled for suspend/resume debugging, the following
compilation error occurs:

arch/arm/mach-s3c64xx/pm.c: In function 's3c_pm_debug_smdkled':
arch/arm/mach-s3c64xx/pm.c:41: error: implicit declaration of function 'gpio_set_value'
arch/arm/mach-s3c64xx/pm.c:41: error: implicit declaration of function 'S3C64XX_GPN'
arch/arm/mach-s3c64xx/pm.c: In function 's3c64xx_pm_init':
arch/arm/mach-s3c64xx/pm.c:184: error: implicit declaration of function 'gpio_request'
arch/arm/mach-s3c64xx/pm.c:188: error: implicit declaration of function 'gpio_direction_output'

Fix the error by including linux/gpio.h

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:36 +09:00
Abhilash Kesavan
7e1291dea2 ARM: S5PV210: Fix build warning
Fixed the following warning for S5PV210.

arch/arm/mach-s5pv210/pm.c: In function 's5pv210_pm_add':
arch/arm/mach-s5pv210/pm.c:139: warning: assignment from
incompatible pointer type

Also, staticized the function.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:35 +09:00
Sylwester Nawrocki
5a1993f0c6 ARM: EXYNOS4: Fix the IRQ definitions for MIPI CSIS device
This is a regression fix after migration to the external GIC.
The breakage has been introduced in commit 69644a8e23
("ARM: EXYNOS4: modify interrupt mappings for external GIC")

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: added commit id]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:34 +09:00
Huang Weiyi
6b875cb741 ARM: EXYNOS4: remove duplicated inclusion
Remove duplicated #include('s) in
  arch/arm/mach-exynos4/cpu.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:25 +09:00
Jonghwan Choi
af8a9f63b4 ARM: EXYNOS4: Fix wrong devname to support clkdev
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:21 +09:00
Kyungmin Park
c1a238aadf ARM: EXYNOS4: Use the correct regulator names on universal_c210
Use the correct regulator names for cpufreq

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:20 +09:00
Kukjin Kim
b8a297d3f8 ARM: SAMSUNG: Fix Section mismatch in samsung_bl_set()
WARNING: vmlinux.o(.text+0xf47c): Section mismatch in reference from the function samsung_bl_set() to the (unknown reference) .init.data:(unknown)
The function samsung_bl_set() references
the (unknown reference) __initdata (unknown).
This is often because samsung_bl_set lacks a __initdata
annotation or the annotation of (unknown) is wrong.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:57:20 +09:00
Kukjin Kim
ac0d1516a2 ARM: S5P64X0: Replace irq_gc_ack() with irq_gc_ack_set_bit()
According to commit 659fb32d1b
("replace irq_gc_ack() with {set,clr}_bit variants"), this
should be fixed.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-08-19 20:56:17 +09:00
Daniel Baluta
98e77438ae ipv6: Fix ipv6_getsockopt for IPV6_2292PKTOPTIONS
IPV6_2292PKTOPTIONS is broken for 32-bit applications running
in COMPAT mode on 64-bit kernels.

The same problem was fixed for IPv4 with the patch:
ipv4: Fix ip_getsockopt for IP_PKTOPTIONS,
commit dd23198e58

Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com>
Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-19 03:19:07 -07:00
Axel Lin
6c58addca8 ARM: 7019/1: Footbridge: select CLKEVT_I8253 for ARCH_NETWINDER
Since commit 8560a6cfc9
"arm: Footbridge: Use common i8253 clockevent",
ARCH_NETWINDER needs to select CLKEVT_I8253.

This patch fixes below build error with "make netwinder_defconfig".

  LD      .tmp_vmlinux1
arch/arm/mach-footbridge/built-in.o: In function `isa_timer_init':
isa-rtc.c:(.init.text+0x12c8): undefined reference to `clockevent_i8253_init'
isa-rtc.c:(.init.text+0x12d0): undefined reference to `i8253_clockevent'
arch/arm/mach-footbridge/built-in.o:(.data+0x198): undefined reference to `i8253_clockevent'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-19 08:51:27 +01:00
Jens Axboe
b53d1ed734 Revert "cfq: Remove special treatment for metadata rqs."
We have a kernel build regression since 3.1-rc1, which is about 10%
regression. The kernel source is in an ext3 filesystem.
Alex Shi bisect it to commit:
commit a07405b780
Author: Justin TerAvest <teravest@google.com>
Date:   Sun Jul 10 22:09:19 2011 +0200

    cfq: Remove special treatment for metadata rqs.

Apparently this is caused by lack metadata preemption, where ext3/ext4
do use READ_META. I didn't see a way to fix the issue, so suggest
reverting the patch.

This reverts commit a07405b780.

Reported-by: Alex Shi<alex.shi@intel.com>
Reported-by: Shaohua Li<shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-19 08:34:48 +02:00
Takashi Iwai
38b65190c6 ALSA: usb-audio - Fix missing mixer dB information
The recent fix for testing dB range at the mixer creation time seems
to cause regressions in some devices.  In such devices, reading the dB
info at probing time gives an error, thus both dBmin and dBmax are still
zero, and TLV flag isn't set although the later read of dB info succeeds.

This patch adds a workaround for such a case by assuming that the later
read will succeed.  In future, a similar test should be performed in a
case where a wrong dB range is seen even in the later read.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>
2011-08-19 07:55:10 +02:00
Linus Torvalds
01b883358b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: fix array bounds error setting up PCIC NMI trap
2011-08-18 22:49:34 -07:00
Linus Torvalds
2c4ac99f98 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  drivers/ata/sata_dwc_460ex.c: add missing kfree
  ata: Add iMX pata support
  pata_via: disable ATAPI DMA on AVERATEC 3200
  [libata] sata_sil: fix used-uninit warning
2011-08-18 22:48:30 -07:00
Linus Torvalds
35a21b4299 Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4.1: Return NFS4ERR_BADSESSION to callbacks during session resets
  NFSv4.1: Fix the callback 'highest_used_slotid' behaviour
  pnfs-obj: Fix the comp_index != 0 case
  pnfs-obj: Bug when we are running out of bio
  nfs: add missing prefetch.h include
2011-08-18 22:47:13 -07:00
Ian Campbell
4a0342ca8e sparc: fix array bounds error setting up PCIC NMI trap
CC      arch/sparc/kernel/pcic.o
arch/sparc/kernel/pcic.c: In function 'pcic_probe':
arch/sparc/kernel/pcic.c:359:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:359:8: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:360:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:360:8: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:361:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:361:8: error: array subscript is above array bounds [-Werror=array-bounds]
cc1: all warnings being treated as errors

I'm not particularly familiar with sparc but t_nmi (defined in head_32.S via
the TRAP_ENTRY macro) and pcic_nmi_trap_patch (defined in entry.S) both appear
to be 4 instructions long and I presume from the usage that instructions are
int sized.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-18 21:47:40 -07:00
Willem de Bruijn
2d5b2c5ca0 net: netdev-features.txt update to Documentation/networking/00-INDEX
Update netdev-features.txt entry in 00-INDEX to incorporate
feedback by Michał Mirosław.

v2: restored tabs that were inadvertently changed to spaces in v1.
sorry for the error.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-18 21:30:37 -07:00
Jiri Pirko
c5114cd59d vlan: reset headers on accel emulation path
It's after all necessary to do reset headers here. The reason is we
cannot depend that it gets reseted in __netif_receive_skb once skb is
reinjected. For incoming vlanids without vlan_dev, vlan_do_receive()
returns false with skb != NULL and __netif_reveive_skb continues, skb is
not reinjected.

This might be good material for 3.0-stable as well

Reported-by: Mike Auty <mike.auty@gmail.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-18 21:29:27 -07:00
Julia Lawall
a081da630d drivers/ata/sata_dwc_460ex.c: add missing kfree
Currently, error handling code in this function calls the function
sata_dwc_port_stop, but this function has essentially no effect if hsdevp
has not been stored in ap, which is the case throughout this function.  The
only effect is to print a debugging message including ap->print_id.

The code is rewritten to not call sata_dwc_port_stop, but instead to jump
to a local label that prints the original error message and the print_id
information.  In the case where hsdevp has been already allocated (but not
yet stored in ap), this value is freed as well.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@exists@
local idexpression x;
statement S,S1;
expression E;
identifier fl;
expression *ptr != NULL;
@@

x = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...kfree(x)...+> }
     when any
     when != true x == NULL
x->fl
...>
(
if (x == NULL) S1
|
if (...) { ... when != x
               when forall
(
 return \(0\|<+...x...+>\|ptr\);
|
* return ...;
)
}
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-08-18 23:58:11 -04:00
Arnaud Patard (Rtp)
e39c75cf3e ata: Add iMX pata support
Add basic support for pata on iMX. It has been tested only on imx51.
SDMA support will probably be added later so this version supports only
PIO.

v2:
  - enable only when needed IORDY
  - use dev_get_drvdata
v3:
  - add missing clk_put() calls
  - use platform_get_irq()
  - fix resume code to avoid disabling IORDY on resume
v4:
  - Remove EXPERIMENTAL and switch to depends on ARCH_MXC
  - Use devm_kzalloc()
  - make clock a must-have
  - Use only 1 ioremap

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-08-18 23:57:58 -04:00
Tejun Heo
6d0e194d2e pata_via: disable ATAPI DMA on AVERATEC 3200
On AVERATEC 3200, pata_via causes memory corruption with ATAPI DMA,
which often leads to random kernel oops.  The cause of the problem is
not well understood yet and only small subset of machines using the
controller seem affected.  Blacklist ATAPI DMA on the machine.

Signed-off-by: Tejun Heo <tj@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=11426
Reported-and-tested-by: Jim Bray <jimsantelmo@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-08-18 23:56:39 -04:00
Jeff Garzik
ebd1699ec5 [libata] sata_sil: fix used-uninit warning
Init 'serror' to silence the following warning:

drivers/ata/sata_sil.c: In function ‘sil_interrupt’:
drivers/ata/sata_sil.c:453:14: warning: ‘serror’ may be used uninitialized in
this function [-Wuninitialized]

This is not a 'can never happen' but is nonetheless extremely unlikely.
The easiest and cleanest warning fix is simply to init the var,
rather than worry about marking the var uninit-ok.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-08-18 23:52:36 -04:00
Linus Torvalds
5c80c71b9a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: set i_size properly when fallocating and we already
  btrfs: unlock on error in btrfs_file_llseek()
  btrfs: btrfs_permission's RO check shouldn't apply to device nodes
  Btrfs: truncate pages from clone ioctl target range
  Btrfs: fix uninitialized sync_pending
  Btrfs: fix wrong free space information
  btrfs: memory leak in btrfs_add_inode_defrag()
  Btrfs: use plain page_address() in header fields setget functions
  Btrfs: forced readonly when btrfs_drop_snapshot() fails
  Btrfs: check if there is enough space for balancing smarter
  Btrfs: fix a bug of balance on full multi-disk partitions
  Btrfs: fix an oops of log replay
  Btrfs: detect wether a device supports discard
  Btrfs: force unplugs when switching from high to regular priority bios
2011-08-18 14:20:00 -07:00
Linus Torvalds
01fa4ba52c Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  update cifs version to 1.75
  [CIFS] possible memory corruption on mount
  cifs: demote cERROR in build_path_from_dentry to cFYI
2011-08-18 14:19:36 -07:00
Linus Torvalds
fbad8991ef Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/iser: Support iSCSI PDU padding
  IBiser: Fix wrong mask when sizeof (dma_addr_t) > sizeof (unsigned long)
  IPoIB: Fix possible NULL dereference in ipoib_start_xmit()
2011-08-18 14:18:55 -07:00
Linus Torvalds
f6a975c50a Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6:
  fat: fat16 support maximum 4GB file/vol size as WinXP or 7.
  fat: fix utf8 iocharset warning message
  fat: fix build warning
2011-08-18 14:16:13 -07:00
Randy Dunlap
d522a0d179 irqdesc: fix new kernel-doc warning
Fix kernel-doc warning in irqdesc.c:

  Warning(kernel/irq/irqdesc.c:353): No description found for parameter 'owner'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-18 14:12:48 -07:00
Mathias Krause
8cf2d2399a i7core_edac: fixed typo in error count calculation
Based on a patch from the PaX Team, found during a clang analysis pass.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: PaX Team <pageexec@freemail.hu>
Cc: stable@kernel.org [v2.6.35+]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-18 14:07:15 -07:00
Ingo Molnar
fe4c51b220 Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent 2011-08-18 21:51:44 +02:00
Steve French
04c05b4a68 update cifs version to 1.75
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-18 16:55:10 +00:00
Steve French
13589c437d [CIFS] possible memory corruption on mount
CIFS cleanup_volume_info_contents() looks like having a memory
corruption problem.
When UNCip is set to "&vol->UNC[2]" in cifs_parse_mount_options(), it
should not be kfree()-ed in cleanup_volume_info_contents().

Introduced in commit b946845a9d

Signed-off-by: J.R. Okajima <hooanon05@yahoo.co.jp>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
CC: Stable <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-18 16:53:02 +00:00
Jarkko Nikula
e574044acb ASoC: omap: Fix build errors in ams-delta
Fix "error: too few arguments to function 'ams_delta_set_bias_level'"
build errors in ams-delta.c that were introduced after commit d4c6005 ("ASoC:
Add context parameter to card DAPM callbacks") by adding dapm context
to ams_delta_set_bias_level calls.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-19 01:19:45 +09:00
Chris Mason
81d86e1b70 Merge branch 'btrfs-3.0' into for-linus 2011-08-18 10:38:03 -04:00
Josef Bacik
f1e490a7eb Btrfs: set i_size properly when fallocating and we already
xfstests exposed a problem with preallocate when it fallocates a range that
already has an extent.  We don't set the new i_size properly because we see that
we already have an extent.  This isn't right and we should update i_size if the
space already exists.  With this patch we now pass xfstests 075.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-18 10:36:39 -04:00
Dan Carpenter
9a4327ca1f btrfs: unlock on error in btrfs_file_llseek()
There were some unlocks on error missing in a recent patch to
btrfs_file_llseek().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-18 10:16:05 -04:00
Jeff Mahoney
cb6db4e576 btrfs: btrfs_permission's RO check shouldn't apply to device nodes
This patch tightens the read-only access checks in btrfs_permission to
 match the constraints in inode_permission. Currently, even though the
 device node itself will be unmodified, read-write access to device nodes
 is denied to when the device node resides on a read-only subvolume or a
 is a file that has been marked read-only by the btrfs conversion utility.

 With this patch applied, the check only affects regular files,
 directories, and symlinks. It also restructures the code a bit so that
 we don't duplicate the MAY_WRITE check for both tests.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-18 10:16:03 -04:00
Takashi Iwai
3fe45aeaf2 ALSA: hda - Add "PCM" volume to vmaster slave list
The new parser may use "PCM" volume, but it was missing the vmaster
slave list, thus "Master" volume didn't control it.

Reference: https://bugzilla.kernel.org/show_bug.cgi?id=41342

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-18 15:13:17 +02:00
Lin Ming
43bece7979 perf tools: Add group event scheduling option to perf record/stat
Group event scheduling command line option is missing in perf
record/stat.

Add it to perf record/stat, which is same as in perf top.

Reported-by: Andi Kleen <andi@firstfloor.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1313577727.2754.5.camel@hp6530s
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:35:46 -03:00
Geunsik Lim
d53e8365ea MAINTAINERS: Fix list of perf events source files
Recent changes made kernel/perf_event.c be split and moved to
kernel/events/.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: Joe Perches <joe@perches.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1313653497-27263-1-git-send-email-leemgs1@gmail.com
Signed-off-by: Geunsik Lim <geunsik.lim@samsung.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:26:05 -03:00
Josh Boyer
195bcbf507 perf tools: Fix build against newer glibc
Upstream glibc commit 295e904 added a definition for __attribute_const__
to cdefs.h.  This causes the following error when building perf:

util/include/linux/compiler.h:8:0: error: "__attribute_const__"
redefined [-Werror] /usr/include/sys/cdefs.h:226:0: note: this is the
location of the previous definition

Wrap __attribute_const__ in #ifndef as we do for __always_inline.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110818113720.GL2227@zod.bos.redhat.com
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:24:53 -03:00
Stephane Eranian
777d1d71db perf tools: Fix error handling of unknown events
There was a problem with the parse_events() code not printing the
correct event name when an event was unknown and starting with an 'r'.
The source of the problem was the way raw notation was parsed.

Without the patch:
	$ perf stat -e retired_foo
	invalid event modifier: 'tired_foo'

With the patch:
	$ perf stat -e retired_foo
	invalid or unsupported event: 'retired_foo'

This also covers the case where the name of the event was not printed at
all when perf was linked with libpfm4.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20110723021043.GA20178@quad
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:21:13 -03:00
Stephane Eranian
cc2d86b04d perf evlist: Fix missing event name init for default event
When no event is given to perf record, perf top, a default event is
initialized (cycles). However, perf_evlist__add_default() was not
setting the symbolic name for the event. Perf top worked simply because
it was reconstructing the name from the event code. But it should not
have to do this. This patch initializes the evsel->name field properly.

This second version improves the code flow on the non error path.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20110607161936.GA8163@quad
Signed-off-by: Stephane Eranian <eranian@google.com>
[committer note: Use perf_evsel__delete() instead of plain free()]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:20:31 -03:00
Stephane Eranian
77e57297b4 perf list: Fix exit value
This patch fixes an issue with the exit value of perf list:

$ perf list; echo $?
129

perf list returns an error exit code even though there is no error.

There was a stray exit(129) in print_events(). This patch removes this
exit().

$ perf list; echo $?
0

$ perf list hw sw
  cpu-cycles OR cycles                               [Hardware event]
  stalled-cycles-frontend OR idle-cycles-frontend    [Hardware event]
  stalled-cycles-backend OR idle-cycles-backend      [Hardware event]
  instructions                                       [Hardware event]
  cache-references                                   [Hardware event]
  cache-misses                                       [Hardware event]
  branch-instructions OR branches                    [Hardware event]
  branch-misses                                      [Hardware event]
  bus-cycles                                         [Hardware event]

  cpu-clock                                          [Software event]
  task-clock                                         [Software event]
  page-faults OR faults                              [Software event]
  minor-faults                                       [Software event]
  major-faults                                       [Software event]
  context-switches OR cs                             [Software event]
  cpu-migrations OR migrations                       [Software event]
  alignment-faults                                   [Software event]
  emulation-faults                                   [Software event]
$ echo $?
0

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20110523123917.GA31060@quad
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:19:15 -03:00
Jiri Pirko
9331db4f00 forcedeth: call vlan_mode only if hw supports vlans
If hw does not support vlans, dont call nv_vlan_mode because it has no point.
I believe that this should fix issues on older non-vlan supportive
chips (like Ingo has).

Reported-ty: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 23:50:37 -07:00
Jiri Pirko
9a75a97296 via-velocity: remove non-tagged packet filtering
It's undesired to filter untagged packets at any time. So simply remove this.

Reported-by: Stephan Bärwolf <stephan.baerwolf@tu-ilmenau.de>
Tested-by: Stephan Bärwolf <stephan.baerwolf@tu-ilmenau.de>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 20:13:39 -07:00
Peter Pan(潘卫平)
ba3211ccd0 bonding:reset backup and inactive flag of slave
Eduard Sinelnikov (eduard.sinelnikov@gmail.com) found that if we change
bonding mode from active backup to round robin, some slaves are still keeping
"backup", and won't transmit packets.

As Jay Vosburgh(fubar@us.ibm.com) pointed out that we can work around that by
removing the bond_is_active_slave() check, because the "backup" flag is only
meaningful for active backup mode.

But if we just simply ignore the bond_is_active_slave() check,
the transmission will work fine, but we can't maintain the correct value of
"backup" flag for each slaves, though it is meaningless for other mode than
active backup.

I'd like to reset "backup" and "inactive" flag in bond_open,
thus we can keep the correct value of them.

As for bond_is_active_slave(), I'd like to prepare another patch to handle it.

V2:
Use C style comment.
Move read_lock(&bond->curr_slave_lock).
Replace restore with reset, for active backup mode, it means "restore",
but for other modes, it means "reset".

Signed-off-by: Weiping Pan <panweiping3@gmail.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 20:12:06 -07:00
Jamal Hadi Salim
8919bc13e8 net_sched: fix port mirror/redirect stats reporting
When a redirected or mirrored packet is dropped by the target
device we need to record statistics.

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 20:10:20 -07:00
Timo Warns
338d0f0a6f befs: Validate length of long symbolic links.
Signed-off-by: Timo Warns <warns@pre-sense.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-17 13:31:24 -07:00
Linus Torvalds
b4fd4ae6c6 Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / Domains: Fix build for CONFIG_PM_RUNTIME unset
2011-08-17 13:15:25 -07:00
Ian Campbell
aa462abe8a mm: fix __page_to_pfn for a const struct page argument
This allows the cast in lowmem_page_address (introduced as a warning
fixup to 33dd4e0ec9 "mm: make some struct page's const") to be
removed.

Propagate const'ness to page_to_section() as well since it is required
by __page_to_pfn.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-17 13:00:20 -07:00
Ian Campbell
f991879473 mm: make HASHED_PAGE_VIRTUAL page_address' struct page argument const.
Followup to 33dd4e0ec9 "mm: make some struct page's const" which missed the
HASHED_PAGE_VIRTUAL case.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-17 13:00:20 -07:00
Roland Dreier
80b43de837 Merge branches 'ipoib' and 'iser' into for-next 2011-08-17 10:57:43 -07:00
Linus Torvalds
72ed62bdc4 Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf probe: Filter out redundant inline-instances
  perf probe: Search concrete out-of-line instances
  perf probe: Avoid searching variables in intermediate scopes
  perf probe: Fix to search local variables in appropriate scope
  perf probe: Warn when more than one line are given
  perf probe: Fix to walk all inline instances
  perf probe: Fix to search nested inlined functions in CU
  perf probe: Fix line walker to check CU correctly
  perf probe: Fix a memory leak for scopes array
  perf: fix temporary file ownership check
  perf report: Use properly build_id kernel binaries
  perf top browser: Remove spurious helpline update
2011-08-17 10:31:39 -07:00
Linus Torvalds
6cac952960 Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rtc: Limit RTC PIE frequency
  rtc: Fix hrtimer deadlock
  rtc: Handle errors correctly in rtc_irq_set_state()

Fixup trivial conflicts in drivers/rtc/interface.c due to slightly
trivially versions of the same patch coming in two different ways.
2011-08-17 10:28:33 -07:00
Linus Torvalds
2da9f365fc Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: Fix wrong assumption in match_held_lock
2011-08-17 10:25:08 -07:00
Linus Torvalds
950d0a10d1 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  irq: Track the owner of irq descriptor
  irq: Always set IRQF_ONESHOT if no primary handler is specified
  genirq: Fix wrong bit operation
2011-08-17 10:23:50 -07:00
Or Gerlitz
200ae1a08b IB/iser: Support iSCSI PDU padding
RFC3270 mandates that iSCSI PDUs are padded to the closest integer
number of four byte words.  Fix the iser code to support that on both
the TX/RX flows.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-08-17 09:45:07 -07:00
Or Gerlitz
0ace64b85e IBiser: Fix wrong mask when sizeof (dma_addr_t) > sizeof (unsigned long)
The code that prepares the SG associated with SCSI command for FMR was
buggy for systems with DMA addresses that don't fit in unsigned long,
e.g under the 32-bit based XenServer dom0 sizeof(dma_addr_t) is 8.

Fix that by casting to unsigned long long a masking constant used by
the code. This resolves a crash in iser_sg_to_page_vec on this system.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-08-17 09:40:55 -07:00
Jan Beulich
ccbcdf7cf1 xen/x86: replace order-based range checking of M2P table by linear one
The order-based approach is not only less efficient (requiring a shift
and a compare, typical generated code looking like this

	mov	eax, [machine_to_phys_order]
	mov	ecx, eax
	shr	ebx, cl
	test	ebx, ebx
	jnz	...

whereas a direct check requires just a compare, like in

	cmp	ebx, [machine_to_phys_nr]
	jae	...

), but also slightly dangerous in the 32-on-64 case - the element
address calculation can wrap if the next power of two boundary is
sufficiently far away from the actual upper limit of the table, and
hence can result in user space addresses being accessed (with it being
unknown what may actually be mapped there).

Additionally, the elimination of the mistaken use of fls() here (should
have been __fls()) fixes a latent issue on x86-64 that would trigger
if the code was run on a system with memory extending beyond the 44-bit
boundary.

CC: stable@kernel.org
Signed-off-by: Jan Beulich <jbeulich@novell.com>
[v1: Based on Jeremy's feedback]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-08-17 10:26:48 -04:00
Namjae Jeon
710d4403a4 fat: fat16 support maximum 4GB file/vol size as WinXP or 7.
FAT16 support maximum 4GB vol/file size with 64KB cluster size.

Win NT/XP/7 increased the maximum cluster size to 64KB, and file/vol
size increased 4GB also.  Although increasing, the file size of linux
FAT is still limited at 2GB.

I found that it is limited by sb->maxbytes(0x7fffffff) when partition
is formatted by FAT16.  sb->s_maxbytes in fill_super should be set to
0xffffffff like fat32.

Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2011-08-17 19:35:00 +09:00
Mihai Moldovan
186b53701c fat: fix utf8 iocharset warning message
The fat_msg function already formats the given message and appends
a newline to it - we don't need to do this in the passed message
string as well, or will end up with a blank line printed in the
kernel log ring buffer.

Also change the loglevel from error to warning.

Signed-off-by: Mihai Moldovan <ionic@ionic.de>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2011-08-17 19:34:59 +09:00
Jonas Aberg
8c320c079c fat: fix build warning
This fixes a compile warning (unititialized variable) in
the fat filesystem code.

Signed-off-by: Jonas Aberg <jonas.aberg@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2011-08-17 19:34:58 +09:00
Sascha Hauer
25b7679136 ASoC: Fix check for symmetric rate enforcement
The ASoC core tries to not enforce symmetric rates when
two streams open simultaneously. It does so by checking
rtd->rate being zero. This works exactly once after booting
because it is not set to zero again when the streams close.
Fix this by setting rtd->rate when no active stream is left.

[This leads to lots of warnings about not enforcing the symmetry in some
situations as there's a race in the userspace API where we know we've
got two applications but don't know what rates they want to set.
-- broonie ]

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-17 16:22:09 +09:00
Yufeng Shen
28ac293363 Input: atmel_mxt_ts - report pressure information from the driver
Atmel mxt1386 touch controller has the touch pressure information so
let's report it to the user space.

[dtor@mail.ru: added ABS_RESSURE reporting for ST emulation.]

Signed-off-by: Yufeng Shen <miletus@chromium.org>
Acked-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16 23:31:51 -07:00
Andrew Drake
c331eb580a Input: bcm5974 - Add support for newer MacBookPro8,2
New MacBook Pro devices reporting product name MacBookPro8,2 come with
newer/higher resolution touchpads than others with the same product
name with USB ID 05ac:0252. This patch adds support for these devices.

Signed-off-by: Andrew Drake <adrake@adrake.org>
Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16 23:31:43 -07:00
Sage Weil
f81c9cdc56 Btrfs: truncate pages from clone ioctl target range
We need to truncate page cache pages for the clone ioctl target range or
else we'll confuse ourselves to no end.  If the old data was cached, we
used to still see it (until remount).  If the page was partially updated
we used to get a mix of old and new data.

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:31 -04:00
Miao Xie
0e58885961 Btrfs: fix uninitialized sync_pending
sync_pending is uninitialized before it be used, fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:31 -04:00
Miao Xie
bb3ac5a4df Btrfs: fix wrong free space information
Btrfs subtracted the size of the allocated space twice when it allocated
the space from the bitmap in the cluster, it broke the free space information
and led to oops finally.

And this patch also fixes the bug that ctl->free_space was subtracted
without lock.

Reported-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:31 -04:00
Dan Carpenter
f4ac904c41 btrfs: memory leak in btrfs_add_inode_defrag()
We don't use the defrag struct on this path.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:15 -04:00
Li Zefan
c97c2916e2 Btrfs: use plain page_address() in header fields setget functions
We've stopped using highmem for extent buffers.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:15 -04:00
Tsutomu Itoh
cb1b69f450 Btrfs: forced readonly when btrfs_drop_snapshot() fails
The filesystem turns readonly instead of returning the error to the
caller when detected error in btrfs_drop_snapshot().
and, because the caller doesn't check the error, the function type is
changed to 'void'.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:15 -04:00
liubo
cdcb725c05 Btrfs: check if there is enough space for balancing smarter
When checking if there is enough space for balancing a block group,
since we do not take raid types into consideration, we do not account
corrent amounts of space that we needed.  This makes us do some extra
work before we get ENOSPC.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:15 -04:00
liubo
38c01b9605 Btrfs: fix a bug of balance on full multi-disk partitions
When balancing, we'll first try to shrink devices for some space,
but if it is working on a full multi-disk partition with raid protection,
we may encounter a bug, that is, while shrinking, total_bytes may be less
than bytes_used, and btrfs may allocate a dev extent that accesses out of
device's bounds.

Then we will not be able to write or read the data which stores at the end
of the device, and get the followings:

device fsid 0939f071-7ea3-46c8-95df-f176d773bfb6 devid 1 transid 10 /dev/sdb5
Btrfs detected SSD devices, enabling SSD mode
btrfs: relocating block group 476315648 flags 9
btrfs: found 4 extents
attempt to access beyond end of device
sdb5: rw=145, want=546176, limit=546147
attempt to access beyond end of device
sdb5: rw=145, want=546304, limit=546147
attempt to access beyond end of device
sdb5: rw=145, want=546432, limit=546147
attempt to access beyond end of device
sdb5: rw=145, want=546560, limit=546147
attempt to access beyond end of device

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:15 -04:00
liubo
34f3e4f23c Btrfs: fix an oops of log replay
When btrfs recovers from a crash, it may hit the oops below:

------------[ cut here ]------------
kernel BUG at fs/btrfs/inode.c:4580!
[...]
RIP: 0010:[<ffffffffa03df251>]  [<ffffffffa03df251>] btrfs_add_link+0x161/0x1c0 [btrfs]
[...]
Call Trace:
 [<ffffffffa03e7b31>] ? btrfs_inode_ref_index+0x31/0x80 [btrfs]
 [<ffffffffa04054e9>] add_inode_ref+0x319/0x3f0 [btrfs]
 [<ffffffffa0407087>] replay_one_buffer+0x2c7/0x390 [btrfs]
 [<ffffffffa040444a>] walk_down_log_tree+0x32a/0x480 [btrfs]
 [<ffffffffa0404695>] walk_log_tree+0xf5/0x240 [btrfs]
 [<ffffffffa0406cc0>] btrfs_recover_log_trees+0x250/0x350 [btrfs]
 [<ffffffffa0406dc0>] ? btrfs_recover_log_trees+0x350/0x350 [btrfs]
 [<ffffffffa03d18b2>] open_ctree+0x1442/0x17d0 [btrfs]
[...]

This comes from that while replaying an inode ref item, we forget to
check those old conflicting DIR_ITEM and DIR_INDEX items in fs/file tree,
then we will come to conflict corners which lead to BUG_ON().

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Tested-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:15 -04:00
Josef Bacik
d5e2003c2b Btrfs: detect wether a device supports discard
We have a problem where if a user specifies discard but doesn't actually support
it we will return EOPNOTSUPP from btrfs_discard_extent.  This is a problem
because this gets called (in a fashion) from the tree log recovery code, which
has a nice little BUG_ON(ret) after it, which causes us to fail the tree log
replay.  So instead detect wether our devices support discard when we're adding
them and then don't issue discards if we know that the device doesn't support
it.  And just for good measure set ret = 0 in btrfs_issue_discard just in case
we still get EOPNOTSUPP so we don't screw anybody up like this again.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-16 21:09:15 -04:00
Nicholas Bellinger
eb39d34004 target: Change TCM_NON_EXISTENT_LUN response to ASC=LOGICAL UNIT NOT SUPPORTED
This patch changes transport_send_check_condition_and_sense() for
TCM_NON_EXISTENT_LUN emulation to use 0x25 (LOGICAL UNIT NOT SUPPORTED)
instead of the original 0x20 (INVALID COMMAND OPERATION CODE).  This is
helpful to distinguish between TCM_UNSUPPORTED_SCSI_OPCODE ASC=0x20
exceptions.

Signed-off-by: Nicholas A. Bellinger <nab@risingtidesystems.com>
2011-08-17 00:50:02 +00:00
Sarah Sharp
48df4a6fd8 xhci: Handle zero-length isochronous packets.
For a long time, the xHCI driver has had this note:
	/* FIXME: Ignoring zero-length packets, can those happen? */

It turns out that, yes, there are drivers that need to queue zero-length
transfers for isochronous OUT transfers.  Without this patch, users will
see kernel hang messages when a driver attempts to enqueue an isochronous
URB with a zero length transfer (because count_isoc_trbs_needed will return
zero for that TD, xhci_td->last_trb will never be set, and updating the
dequeue pointer will cause an infinite loop).

Matěj ran into this issue when using an NI Audio4DJ USB soundcard
with the snd-usb-caiaq driver.  See
	https://bugzilla.kernel.org/show_bug.cgi?id=40702

Fix count_isoc_trbs_needed() to return 1 for zero-length transfers (thanks
Alan on the math help).  Update the various TRB field calculations to deal
with zero-length transfers.  We're still transferring one packet with a
zero-length data payload, so the total_packet_count should be 1. The
Transfer Burst Count (TBC) and Transfer Last Burst Packet Count (TLBPC)
fields should be set to zero.

This patch should be backported to kernels as old as 2.6.36.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Matěj Laitl <matej@laitl.cz>
Cc: Daniel Mack <zonque@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: stable@kernel.org
2011-08-16 16:46:57 -07:00
Lionel Elie Mamane
c2bceb3d7f sit tunnels: propagate IPv6 transport class to IPv4 Type of Service
sit tunnels (IPv6 tunnel over IPv4) do not implement the "tos inherit"
case to copy the IPv6 transport class byte from the inner packet to
the IPv4 type of service byte in the outer packet. By contrast, ipip
tunnels and GRE tunnels do.

This patch, adapted from the similar code in net/ipv4/ipip.c and
net/ipv4/ip_gre.c, implements that.

This patch applies to 3.0.1, and has been tested on that version.

Signed-off-by: Lionel Elie Mamane <lionel@mamane.lu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-16 16:28:55 -07:00
Linus Torvalds
ab7e2dbf9b Merge branch 'kvm-updates/3.1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/3.1' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: uses TASKSTATS, depends on NET
  KVM: fix TASK_DELAY_ACCT kconfig warning
2011-08-16 11:14:44 -07:00
Linus Torvalds
4bc9b0796b Merge branch 'fixallnoconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'fixallnoconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] fix "allnoconfig" build
2011-08-16 10:40:29 -07:00
Bernd Schubert
22cfb0bf67 IPoIB: Fix possible NULL dereference in ipoib_start_xmit()
Fix a bug introduced in 69cce1d140 ("net: Abstract dst->neighbour
accesses behind helpers.") where we might dereference skb_dst(skb)
even if it is NULL, which causes:

    [  240.944030] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
    [  240.948007] IP: [<ffffffffa0366ce9>] ipoib_start_xmit+0x39/0x280 [ib_ipoib]
    [...]
    [  240.948007] Call Trace:
    [  240.948007]  <IRQ>
    [  240.948007]  [<ffffffff812cd5e0>] dev_hard_start_xmit+0x2a0/0x590
    [  240.948007]  [<ffffffff8131f680>] ? arp_create+0x70/0x200
    [  240.948007]  [<ffffffff812e8e1f>] sch_direct_xmit+0xef/0x1c0

Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=41212
Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-08-16 10:19:20 -07:00
Randy Dunlap
df3d8ae1f8 KVM: uses TASKSTATS, depends on NET
CONFIG_TASKSTATS just had a change to use netlink, including
a change to "depends on NET".  Since "select" does not follow
dependencies, KVM also needs to depend on NET to prevent build
errors when CONFIG_NET is not enabled.

Sample of the reported "undefined reference" build errors:

taskstats.c:(.text+0x8f686): undefined reference to `nla_put'
taskstats.c:(.text+0x8f721): undefined reference to `nla_reserve'
taskstats.c:(.text+0x8f8fb): undefined reference to `init_net'
taskstats.c:(.text+0x8f905): undefined reference to `netlink_unicast'
taskstats.c:(.text+0x8f934): undefined reference to `kfree_skb'
taskstats.c:(.text+0x8f9e9): undefined reference to `skb_clone'
taskstats.c:(.text+0x90060): undefined reference to `__alloc_skb'
taskstats.c:(.text+0x901e9): undefined reference to `skb_put'
taskstats.c:(.init.text+0x4665): undefined reference to `genl_register_family'
taskstats.c:(.init.text+0x4699): undefined reference to `genl_register_ops'
taskstats.c:(.init.text+0x4710): undefined reference to `genl_unregister_ops'
taskstats.c:(.init.text+0x471c): undefined reference to `genl_unregister_family'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-08-16 19:00:41 +03:00
Randy Dunlap
4fec0e0bde xen: self-balloon needs module.h
Fix build errors (found when CONFIG_SYSFS is not enabled):

  drivers/xen/xen-selfballoon.c:446: warning: data definition has no type or storage class
  drivers/xen/xen-selfballoon.c:446: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL'
  drivers/xen/xen-selfballoon.c:446: warning: parameter names (without types) in function declaration
  drivers/xen/xen-selfballoon.c:485: error: expected declaration specifiers or '...' before string constant
  drivers/xen/xen-selfballoon.c:485: warning: data definition has no type or storage class
  drivers/xen/xen-selfballoon.c:485: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE'
  drivers/xen/xen-selfballoon.c:485: warning: function declaration isn't a prototype

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-16 07:23:34 -07:00
Alan Cox
c3585aa91a gma500: kill MIPI interface types
Kirill Shutemov found problems with the non-upstream IMG driver where the
use of extra DRM encoder/connector types caused random crashes when the DRM
layer tried to display their matching name. This removes the MIPI types
matching the changes Pauli Nieminen made to the non upstream driver set.

As Pauli points out:
" MIPI (or DSI) is protocol specification on top of LVDS serial bus. That
 makes it resonable to call MIPI connectors and encoders LVDS."

(and indeed they may also be HDMI convertors or similar when we want to
 report a more useful to end user result)

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-16 07:22:16 -07:00
Jeff Layton
fa71f44706 cifs: demote cERROR in build_path_from_dentry to cFYI
Running the cthon tests on a recent kernel caused this message to pop
occasionally:

    CIFS VFS: did not end path lookup where expected namelen is 0

Some added debugging showed that namelen and dfsplen were both 0 when
this occurred. That means that the read_seqretry returned true.

Assuming that the comment inside the if statement is true, this should
be harmless and just means that we raced with a rename. If that is the
case, then there's no need for alarm and we can demote this to cFYI.

While we're at it, print the dfsplen too so that we can see what
happened here if the message pops during debugging.

Cc: stable@kernel.org
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-16 13:07:24 +00:00
Takashi Iwai
c503ad466d ALSA: hda - Fix duplicated capture-volume creation for ALC268 models
Fix the duplicated creation of capture-mixer elements for some static
ALC268 configurations.  The capture mixers must be put to cap_mixer field
instead of mixers array.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-16 14:23:20 +02:00
Ping Cheng
3b48c91cdf Input: wacom - report id 3 returns 4 bytes of data
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16 00:21:52 -07:00
Ping Cheng
a417ea4432 Input: wacom - add WAC_MSG_RETRIES define
Use WAC_MSG_RETRIES define instead of a numeric constant.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16 00:21:48 -07:00
Gerard Braad
18adad1c57 Input: wacom - add support for the Wacom Bamboo Pen (CTL-660/K)
Signed-off-by: Gerard Braad <me@gbraad.nl>
Reviewed-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16 00:21:41 -07:00
Stephen Rothwell
b5ddbf465f regmap: using module facilities requires module.h
Commit b33f9cbd67 ("regmap: Specify a module license") added a
MODULES_LICENSE to this file without adding an include of module.h.

module.h should have been included anyway, since this file has
EXPORT_SYMBOLs as well.  With the pending module.h split up, this would
probably have caused build problems.

Cc: Stephen Warren <swarren@nvidia.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-15 19:28:17 -07:00
Linus Torvalds
870d3be124 Merge branch 'docs-move' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs
* 'docs-move' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs:
  Docs: MSI-HOWTO: MSI -> MSIs
  Docs: MSI-HOWTO: Insert a comma
  Docs: MSI-HOWTO: can -> could
  Docs: MSI-HOWTO: Use `unknown ...' rather than `... know about.'
  Docs: MSI-HOWTO: may -> might
  Docs: MSI-HOWTO: Insert a comma
  Docs: MSI-HOWTO: API -> function
  Docs: MSI-HOWTO: , -> ;
  Docs: MSI-HOWTO: Move a sentence to another paragraph
  Docs: MSI-HOWTO: Insert `that'
  Docs: MSI-HOWTO: Offset modifier with a comma, and insert `yet' for emphasis
  Docs: MSI-HOWTO: Put the `because' subordinate clause first
  Docs: MSI-HOWTO: Streamline some wording
  Docs: MSI-HOWTO: `asked for' -> `requested'
  Docs: MSI-HOWTO: Use present tense and streamline some wording
  Docs: MSI-HOWTO: Use the subjunctive, and change `can' to `may'
2011-08-15 19:24:42 -07:00
Linus Torvalds
edb581110d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Set HAVE_C_RECORDMCOUNT
  sparc32: unbreak arch_write_unlock()
  sparc64: remove unnecessary macros from spinlock_64.h
2011-08-15 19:16:01 -07:00
Linus Torvalds
291b63c86a Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6
* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6:
  drm/i915: Cannot set clock gating under UMS
  drm/i915: Can't do accurate vblank timestamps with UMS
  Not all systems expose a firmware or platform mechanism for changing the backlight intensity on i915, so add native driver support.
  drm/i915: split out PCH refclk update code
  drm/i915: show interrupt info on IVB
  drm/i915: Remove unused 'reg' argument to dp_pipe_enabled
  drm/i915: Fix PCH port pipe select in CPT disable paths
  drm/i915: Leave LVDS registers unlocked
  drm/i915: Wait for LVDS panel power sequence
2011-08-15 19:14:18 -07:00
Randy Dunlap
cedf03bd9a x86: fix mm/fault.c build
arch/x86/mm/fault.c needs to include asm/vsyscall.h to fix a
build error:

  arch/x86/mm/fault.c: In function '__bad_area_nosemaphore':
  arch/x86/mm/fault.c:728: error: 'VSYSCALL_START' undeclared (first use in this function)

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-15 19:10:50 -07:00
David S. Miller
178a296003 sparc64: Set HAVE_C_RECORDMCOUNT
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-15 14:45:17 -07:00
Mikael Pettersson
3f6aa0b113 sparc32: unbreak arch_write_unlock()
The sparc32 version of arch_write_unlock() is just a plain assignment.
Unfortunately this allows the compiler to schedule side-effects in a
protected region to occur after the HW-level unlock, which is broken.
E.g., the following trivial test case gets miscompiled:

	#include <linux/spinlock.h>
	rwlock_t lock;
	int counter;
	void foo(void) { write_lock(&lock); ++counter; write_unlock(&lock); }

Fixed by adding a compiler memory barrier to arch_write_unlock().  The
sparc64 version combines the barrier and assignment into a single asm(),
and implements the operation as a static inline, so that's what I did too.

Compile-tested with sparc32_defconfig + CONFIG_SMP=y.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-15 14:35:19 -07:00
Mikael Pettersson
a0fba3eb05 sparc64: remove unnecessary macros from spinlock_64.h
The sparc64 spinlock_64.h contains a number of operations defined
first as static inline functions, and then as macros with the same
names and parameters as the functions.  Maybe this was needed at
some point in the past, but now nothing seems to depend on these
macros (checked with a recursive grep looking for ifdefs on these
names).  Other archs don't define these identity-macros.

So this patch deletes these unnecessary macros.

Compile-tested with sparc64_defconfig.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-15 14:35:18 -07:00
Jeff Moyer
4853abaae7 block: fix flush machinery for stacking drivers with differring flush flags
Commit ae1b153962, block: reimplement
FLUSH/FUA to support merge, introduced a performance regression when
running any sort of fsyncing workload using dm-multipath and certain
storage (in our case, an HP EVA).  The test I ran was fs_mark, and it
dropped from ~800 files/sec on ext4 to ~100 files/sec.  It turns out
that dm-multipath always advertised flush+fua support, and passed
commands on down the stack, where those flags used to get stripped off.
The above commit changed that behavior:

static inline struct request *__elv_next_request(struct request_queue *q)
{
        struct request *rq;

        while (1) {
-               while (!list_empty(&q->queue_head)) {
+               if (!list_empty(&q->queue_head)) {
                        rq = list_entry_rq(q->queue_head.next);
-                       if (!(rq->cmd_flags & (REQ_FLUSH | REQ_FUA)) ||
-                           (rq->cmd_flags & REQ_FLUSH_SEQ))
-                               return rq;
-                       rq = blk_do_flush(q, rq);
-                       if (rq)
-                               return rq;
+                       return rq;
                }

Note that previously, a command would come in here, have
REQ_FLUSH|REQ_FUA set, and then get handed off to blk_do_flush:

struct request *blk_do_flush(struct request_queue *q, struct request *rq)
{
        unsigned int fflags = q->flush_flags; /* may change, cache it */
        bool has_flush = fflags & REQ_FLUSH, has_fua = fflags & REQ_FUA;
        bool do_preflush = has_flush && (rq->cmd_flags & REQ_FLUSH);
        bool do_postflush = has_flush && !has_fua && (rq->cmd_flags &
        REQ_FUA);
        unsigned skip = 0;
...
        if (blk_rq_sectors(rq) && !do_preflush && !do_postflush) {
                rq->cmd_flags &= ~REQ_FLUSH;
		if (!has_fua)
			rq->cmd_flags &= ~REQ_FUA;
	        return rq;
	}

So, the flush machinery was bypassed in such cases (q->flush_flags == 0
&& rq->cmd_flags & (REQ_FLUSH|REQ_FUA)).

Now, however, we don't get into the flush machinery at all.  Instead,
__elv_next_request just hands a request with flush and fua bits set to
the scsi_request_fn, even if the underlying request_queue does not
support flush or fua.

The agreed upon approach is to fix the flush machinery to allow
stacking.  While this isn't used in practice (since there is only one
request-based dm target, and that target will now reflect the flush
flags of the underlying device), it does future-proof the solution, and
make it function as designed.

In order to make this work, I had to add a field to the struct request,
inside the flush structure (to store the original req->end_io).  Shaohua
had suggested overloading the union with rb_node and completion_data,
but the completion data is used by device mapper and can also be used by
other drivers.  So, I didn't see a way around the additional field.

I tested this patch on an HP EVA with both ext4 and xfs, and it recovers
the lost performance.  Comments and other testers, as always, are
appreciated.

Cheers,
Jeff

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-15 21:37:25 +02:00
Keith Packard
92b79f4322 drm/i915: Cannot set clock gating under UMS
The clock gating functions are only assigned under KMS, so don't try
to call them under UMS.

Signed-off-by: Keith Packard <keithp@keithp.com>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>
2011-08-15 12:10:27 -07:00
Keith Packard
c3613de92e drm/i915: Can't do accurate vblank timestamps with UMS
Disable this feature when KMS is not running by setting the
driver->get_vblank_timestamp function pointer to NULL.

Signed-off-by: Keith Packard <keithp@keithp.com>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>
2011-08-15 12:10:26 -07:00
Matthew Garrett
aaa6fd2a00 Not all systems expose a firmware or platform mechanism for changing the backlight intensity on i915, so add native driver support.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Sedat Dilek <sedat.dilek@googlemail.com>
Tested-by: Michel Alexandre Salim <salimma@fedoraproject.org>
Tested-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-08-15 12:10:25 -07:00
Thomas Renninger
9ee31f618a cpupower: Make monitor command -c/--cpu aware
This allows for example:
cpupower -c 2-4,6 monitor -m Mperf
              |Mperf
PKG |CORE|CPU | C0   | Cx   | Freq
   0|   8|   4|  2.42| 97.58|  1353
   0|  16|   2| 14.38| 85.62|  1928
   0|  24|   6|  1.76| 98.24|  1442
   1|  16|   3| 15.53| 84.47|  1650

CPUs always get resorted for package, core then cpu id if it could get read out
(or however you name these topology levels...).
Still this is a nice way to keep the overview if a test binary is bound to
a specific CPU or if one wants to show all CPUs inside a package or similar.

Still missing: Do not measure not available cores to reduce the overhead
and achieve better results.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-15 20:03:16 +02:00
Thomas Renninger
7c74d2bc5a cpupower: Better detect offlined CPUs
Before, checking for offlined CPUs was done dirty and
it was checked whether topology parsing returned -1 values.
But this is a valid case on a Xen (and possibly other) kernels.

Do proper online/offline checking, also take CONFIG_HOTPLUG_CPU
option into account (no /sys/devices/../cpuX/online file).

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-15 20:03:10 +02:00
Thomas Renninger
88f984e0e2 cpupower: Do not show an empty Idle_Stats monitor if no idle driver is available
By taking error values of:
sysfs_get_idlestate_count(..);
into account.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-15 20:03:05 +02:00
Thomas Renninger
2dfc818b35 cpupower: mperf monitor - Use TSC to calculate max frequency if possible
Which makes the implementation independent from cpufreq drivers.
Therefore this would also work on a Xen kernel where the hypervisor
is doing frequency switching and idle entering.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-15 20:02:59 +02:00
Amerigo Wang
75f25bd31d cpupower: avoid using symlinks
Reference the source directly, don't create symlinks.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-15 20:02:50 +02:00
Sarah Sharp
8a9af4fdf6 USB: Avoid NULL pointer deref in usb_hcd_alloc_bandwidth.
usb_ifnum_to_if() can return NULL if the USB device does not have a
configuration installed (usb_device->actconfig == NULL), or if we can't
find the interface number in the installed configuration.  Return an
error instead of crashing.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2011-08-15 09:22:40 -07:00
Felipe Balbi
200b0182f9 Merge branch 'fixes' into for-greg 2011-08-15 19:02:25 +03:00
Linus Torvalds
2f6a123821 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  lguest: allow booting guest with CONFIG_RELOCATABLE=y
  virtio: Add text copy of spec to Documentation/virtual.
2011-08-15 08:46:11 -07:00
Linus Torvalds
6f02bfc404 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: ohci: fix DMA unmapping in an error path
  firewire: cdev: fix 32 bit userland on 64 bit kernel compat corner cases
2011-08-15 08:40:49 -07:00
Linus Torvalds
a0b3447fb1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
  jfs: flush journal completely before releasing metadata inodes
2011-08-15 08:40:24 -07:00
Linus Torvalds
4cb5aa1d01 Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: don't try to be smart in the hpd handler
  drm/radeon: re-POST the asic on Apple hardware when booted via EFI
  drm/radeon: Allow panel preferred EDID to override BIOS native mode
  drm/radeon/kms: make some watermark messages debug only
  drm/radeon/kms: fix regression is handling >2 heads on cedar/caicos
  drm/radeon/kms: don't enable connectors that are off in the hotplug handler
2011-08-15 08:39:10 -07:00
Linus Torvalds
aa2b1cf5ca Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: Do not set cifs/ntfs acl using a file handle (try #4)
  [CIFS] Cleanup use of CONFIG_CIFS_STATS2 ifdef to make transport routines more readable
2011-08-15 08:36:30 -07:00
Linus Torvalds
259a53407d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: Specify a module license
  regmap: Fix bulk reads
2011-08-15 08:35:54 -07:00
Scott Jiang
0cc62e9263 ASoC: ad193x: remove cache support
asoc cache layer can't support this kind of spi registers well.
remove cache support and read/write registers directly

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-15 22:43:49 +09:00
Scott Jiang
396a2e79cd ASoC: Add spi hw read function for 16 addr 8 data mode for ad193x fix
[This will be used by the ad193x driver to fix the fact that the
original author of the driver put a bodge for their particular chip into
a the generic ASoC register I/O abstraction layer which looked like an
obvious bug which ended up getting fixed in 3.0.  Sadly there were no
comments documenting what was going on.  A minimally invasive correction
to the driver is to remove the register cache support and go direct to
the hardware all the time so we're adding a new feature -- broonie]

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-15 22:38:14 +09:00
Scott Jiang
25ea524bed ASoC: ad193x: fix system clock
system clock is 24.576MHz instead of 12.288MHz

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-15 22:38:05 +09:00
Scott Jiang
95c93d8525 ASoC: ad193x: fix dac word len setting
dac word len value should left shift before setting

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Acked-by: Barry Song <21cnbao@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-08-15 22:29:22 +09:00
Scott Jiang
bf545ed72f ASoC: ad193x: fix registers definition
fix dac word len mask and adc tdm fmt shift value

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-08-15 22:28:53 +09:00
Axel Lin
161d55c3ec ASoC: sta32x: Fix a memory leak if snd_soc_register_codec fails
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-15 22:28:52 +09:00
Axel Lin
d2b4c7bd7e ASoC: soc-jack: Fix checking return value of request_any_context_irq
request_any_context_irq() returns a negative value on failure.
On success, it returns either IRQC_IS_HARDIRQ or IRQC_IS_NESTED.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.orG
2011-08-15 22:28:46 +09:00
Catalin Marinas
145e10e173 ARM: 7015/1: ARM errata: Possible cache data corruption with hit-under-miss enabled
This patch is a workaround for the 364296 ARM1136 r0p2 erratum (possible
cache data corruption with hit-under-miss enabled). It sets the
undocumented bit 31 in the auxiliary control register and the FI bit in
the control register, thus disabling hit-under-miss without putting the
processor into full low interrupt latency mode.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-15 11:58:59 +01:00
Srinivas Kandagatla
43c734be55 ARM: 7014/1: cache-l2x0: Fix L2 Cache size calculation.
This patch fixes L2 Cache size calculations for L2C-210, L2C-310 and
PL310, by changing the L2X0_AUX_CTRL_WAY_SIZE_MASK from 2 bits to 3
bits.

The Auxiliary Control Register for L2C-210, L2C-310 and PL310 has 3bits
[19:17] for Way size, however the existing code only uses 2 bits to
get this value. This results in incorrect cachesize calculations.

It also results in performing operations on the whole cache when we
erroneously decide that the range is big enough (due to l2x0_size being
too small) and also prints incorrect cachesize.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: stable@kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-15 11:58:59 +01:00
Petr Štetiar
505ed6fd82 ARM: 6967/1: ep93xx: ts72xx: fix board model detection
Fix the obvious error in board detection logic, because according to the TS's
manual, the model is stored in the least three significant bits. For example
the byte read on my ts-7300 is 0x23 and the detection then fails.

Cc: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-15 11:58:59 +01:00
Petr Štetiar
2a004c686e ARM: 6965/1: ep93xx: add model detection for ts-7300 and ts-7400 boards
Cc: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-15 11:58:59 +01:00
Alex Deucher
d5811e8731 drm/radeon/kms: don't try to be smart in the hpd handler
Attempting to try and turn off disconnected display hw in the
hotput handler lead to more problems than it helped.  For
now just register an event and only attempt the do something
interesting with DP.  Other connectors are just too problematic:
- Some systems have an HPD pin assigned to LVDS, but it's rarely
if ever connected properly and we don't really care about hpd
events on LVDS anyway since it's always connected.
- The HPD pin is wired up correctly for eDP, but we don't really
have to do anything since the events since it's always connected.
- Some HPD pins fire more than once when you connect/disconnect
- etc.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=39882

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-15 09:44:12 +01:00
Daniel T Chen
eade7b281c ALSA: ac97: Add HP Compaq dc5100 SFF(PT003AW) to Headphone Jack Sense whitelist
BugLink: https://bugs.launchpad.net/bugs/826081

The original reporter needs 'Headphone Jack Sense' enabled to have
audible audio, so add his PCI SSID to the whitelist.

Reported-and-tested-by: Muhammad Khurram Khan
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-15 10:26:37 +02:00
Rusty Russell
e22a539824 lguest: allow booting guest with CONFIG_RELOCATABLE=y
The CONFIG_RELOCATABLE code tries to align the unpack destination to
the value of 'kernel_alignment' in the setup_hdr.  If that's 0, it
tries to unpack to address 0, which in fact causes the gunzip code
to call 'error("Out of memory while allocating output buffer")'.

The bootloader (ie. the lguest Launcher in this case) should be doing
setting this field; the normal bzImage is 16M, we can use the same.

Reported-by: Stefanos Geraggelos <sgerag@cslab.ece.ntua.gr>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
2011-08-15 10:15:10 +09:30
Rusty Russell
c3c53a0732 virtio: Add text copy of spec to Documentation/virtual.
As suggested by Christoph Hellwig.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-08-15 10:15:10 +09:30
Daniel Mack
da6094ea7d ALSA: snd_usb_caiaq: track submitted output urbs
The snd_usb_caiaq driver currently assumes that output urbs are serviced
in time and doesn't track when and whether they are given back by the
USB core. That usually works fine, but due to temporary limitations of
the XHCI stack, we faced that urbs were submitted more than once with
this approach.

As it's no good practice to fire and forget urbs anyway, this patch
introduces a proper bit mask to track which requests have been submitted
and given back.

That alone however doesn't make the driver work in case the host
controller is broken and doesn't give back urbs at all, and the output
stream will stop once all pre-allocated output urbs are consumed. But
it does prevent crashes of the controller stack in such cases.

See http://bugzilla.kernel.org/show_bug.cgi?id=40702 for more details.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-and-tested-by: Matej Laitl <matej@laitl.cz>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-14 18:10:43 +02:00
Rafael J. Wysocki
17f2ae7f67 PM / Domains: Fix build for CONFIG_PM_RUNTIME unset
Function genpd_queue_power_off_work() is not defined for
CONFIG_PM_RUNTIME, so pm_genpd_poweroff_unused() causes a build
error to happen in that case.  Fix the problem by making
pm_genpd_poweroff_unused() depend on CONFIG_PM_RUNTIME too.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-08-14 13:34:31 +02:00
Vasily Khoruzhick
b8487928f5 ASoC: rx1950: Fix compilation error due to missing header
Add linux/types.h to fix this compilation error:

In file included from arch/arm/mach-s3c2410/include/mach/gpio-fns.h:27:0,
                 from arch/arm/mach-s3c2410/include/mach/gpio.h:27,
                 from /home/anarsoul/work/pda-linux/linux-next/arch/arm/include/asm/gpio.h:5,
                 from include/linux/gpio.h:18,
                 from sound/soc/samsung/rx1950_uda1380.c:20:
arch/arm/plat-samsung/include/plat/gpio-cfg.h:29:34: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘s3c_gpio_pull_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:30:34: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘s5p_gpio_drvstr_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:57:2: error: expected specifier-qualifier-list before ‘s3c_gpio_pull_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:148:47: error: expected declaration specifiers or ‘...’ before ‘s3c_gpio_pull_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:156:24: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘s3c_gpio_getpull’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:175:24: error: expected declaration specifiers or ‘...’ before ‘s3c_gpio_pull_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h: In function ‘s3c_gpio_cfgrange_nopull’:
arch/arm/plat-samsung/include/plat/gpio-cfg.h:180:47: error: ‘s3c_gpio_pull_t’ undeclared (first use in this function)
arch/arm/plat-samsung/include/plat/gpio-cfg.h:180:47: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/plat-samsung/include/plat/gpio-cfg.h:180:47: error: expected ‘)’ before numeric constant
arch/arm/plat-samsung/include/plat/gpio-cfg.h:180:47: error: too many arguments to function ‘s3c_gpio_cfgall_range’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:174:12: note: declared here
arch/arm/plat-samsung/include/plat/gpio-cfg.h: At top level:
arch/arm/plat-samsung/include/plat/gpio-cfg.h:199:26: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘s5p_gpio_get_drvstr’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:210:50: error: expected declaration specifiers or ‘...’ before ‘s5p_gpio_drvstr_t’

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-14 19:22:51 +09:00
Vasily Khoruzhick
fd04975563 ASoC: h1940: Fix compilation error due to missing header
Add linux/types.h to fix this compilation error:

In file included from arch/arm/mach-s3c2410/include/mach/gpio-fns.h:27:0,
                 from arch/arm/mach-s3c2410/include/mach/gpio.h:27,
                 from /home/anarsoul/work/pda-linux/linux-next/arch/arm/include/asm/gpio.h:5,
                 from include/linux/gpio.h:18,
                 from sound/soc/samsung/rx1950_uda1380.c:20:
arch/arm/plat-samsung/include/plat/gpio-cfg.h:29:34: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘s3c_gpio_pull_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:30:34: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘s5p_gpio_drvstr_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:57:2: error: expected specifier-qualifier-list before ‘s3c_gpio_pull_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:148:47: error: expected declaration specifiers or ‘...’ before ‘s3c_gpio_pull_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:156:24: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘s3c_gpio_getpull’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:175:24: error: expected declaration specifiers or ‘...’ before ‘s3c_gpio_pull_t’
arch/arm/plat-samsung/include/plat/gpio-cfg.h: In function ‘s3c_gpio_cfgrange_nopull’:
arch/arm/plat-samsung/include/plat/gpio-cfg.h:180:47: error: ‘s3c_gpio_pull_t’ undeclared (first use in this function)
arch/arm/plat-samsung/include/plat/gpio-cfg.h:180:47: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/plat-samsung/include/plat/gpio-cfg.h:180:47: error: expected ‘)’ before numeric constant
arch/arm/plat-samsung/include/plat/gpio-cfg.h:180:47: error: too many arguments to function ‘s3c_gpio_cfgall_range’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:174:12: note: declared here
arch/arm/plat-samsung/include/plat/gpio-cfg.h: At top level:
arch/arm/plat-samsung/include/plat/gpio-cfg.h:199:26: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘s5p_gpio_get_drvstr’
arch/arm/plat-samsung/include/plat/gpio-cfg.h:210:50: error: expected declaration specifiers or ‘...’ before ‘s5p_gpio_drvstr_t’

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-14 19:22:42 +09:00
Mark Brown
a115c72802 ASoC: Move WM8962 CLKREG_OVD earlier
When the clocking registers are not overriden some of the registers are
not writable.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Cc: stable@kernel.org
2011-08-14 19:18:37 +09:00
Ingo Molnar
bdc2209fd2 Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent 2011-08-14 11:48:29 +02:00
Wang Shaoyan
588dc91151 gianfar: reduce stack usage in gianfar_ethtool.c
drivers/net/gianfar_ethtool.c:765: warning: the frame size of 2048 bytes is larger than 1024 bytes

Signed-off-by: Wang Shaoyan <wangshaoyan.pt@taobao.com>
Reviewed-and-tested-by: Sebastian Pöhn <sebastian.poehn@belden.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13 18:00:33 -07:00
Willem de Bruijn
320f24e482 net: minor update to Documentation/networking/scaling.txt
Incorporate last comments about hyperthreading, interrupt coalescing and
the definition of cache domains into the network scaling document scaling.txt

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13 18:00:33 -07:00
Willem de Bruijn
b88cf73d92 net: add missing entries to Documentation/networking/00-INDEX
A simple janitor duty patch that adds a one sentence overview to
00-INDEX for all files that lacked it.

- does not add entries for subdirectories
- does not modify existing entries.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13 18:00:33 -07:00
Jiri Pirko
32f7fd44ce gianfar: prevent buggy hw rx vlan tagging
On some buggy chips, "vlan tag present" flag is set which causes packet
loss. Fix this by checking if rx vlan accel is enabled in features.

Reported-by: Michael Guntsche <mguntsche@gmail.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13 18:00:33 -07:00
Nobuhiro Iwamatsu
6a27cdeddf net: sh_eth: Fix build by forgot including linux/interrupt.h
By a6b7a40786, remove interrupt.h
from netdevice.h. But this forget to revise sh_eth.

This fix the build failure.

error: expected '=', ',', ';', 'asm' or '__attribute__' before 'sh_eth_interrupt'
error: implicit declaration of function 'request_irq'
error: 'sh_eth_interrupt' undeclared (first use in this function)
error: (Each undeclared identifier is reported only once
	drivers/net/sh_eth.c:1386: error: for each function it appears in.)
error: 'IRQF_SHARED' undeclared (first use in this function)
error: implicit declaration of function 'free_irq'

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13 18:00:32 -07:00
Julia Lawall
951f2f960e drivers/net/can/sja1000/plx_pci.c: eliminate double free
In this code, the failure_cleanup label calls the function
plx_pci_del_card, which frees everything in the card->net_dev array.  dev
is placed in this array immediately after allocation, so the two subsequent
jumps to failure_cleanup should not also call free_sja1000dev, but the
second one does.

If plx_pci_check_sja1000 fails, then free_sja1000dev is also called on
dev.  Because dev is already in the card->net_dev array, this implies that
when plx_pci_del_card is later called, it may get freed again.  So that
entry is reset to NULL after the free.

Finally, if there is a problem with one channel, there will be a hole in the
array.  card->channels counts the number of channels that have succeeded,
and does not keep track of the index of the largest element in the array
that is valid.  So the loop in plx_pci_del_card is changed to go up to
PLX_PCI_MAX_CHAN, which is only 2.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13 18:00:32 -07:00
Josh Boyer
75bc8ef528 usbnet/cdc_ncm: Don't use stack variables for DMA
The cdc_ncm driver still has a few places where stack variables are
passed to the cdc_ncm_do_request function.  This triggers a stack trace in
lib/dma-debug.c if the CONFIG_DEBUG_DMA_API option is set.

Adjust these calls to pass parameters that have been allocated with
kzalloc.

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13 18:00:32 -07:00
Jesse Gross
f6957f88e5 vmxnet3: Don't enable vlan filters in promiscuous mode.
The vmxnet3 driver enables vlan filters if filtering is enabled for
any vlan.  In promiscuous mode the filter table is cleared to in
order to disable filtering.  However, if a vlan device is subsequently
created that vlan will be added to the filter, re-engaging it.  As a
result, not only do we not see all the vlans in promiscuous mode, we
don't even see vlans for which a filter was previously created.

CC: Scott J. Goldman <scottjg@vmware.com>
CC: Shreyas Bhatewara <sbhatewara@vmware.com>
CC: VMware PV-Drivers <pv-drivers@vmware.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-13 18:00:32 -07:00
Emmanuel Grumbach
16a9d06c75 iwlagn: sysfs couldn't find the priv pointer
This bug has been introduced by:
d593411084
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date:   Mon Jul 11 10:48:51 2011 +0300

    iwlagn: simplify the bus architecture

Revert part of the buggy patch: dev_get_drvdata will now return
iwl_priv as it did before the patch.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-13 14:40:46 -04:00
Emmanuel Grumbach
4eb60d869f Revert "iwlagn: sysfs couldn't find the priv pointer"
This reverts commit cc1a93e68f.

This fix introduced a bug: bad pointer in unload.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-13 14:40:46 -04:00
Theodore Ts'o
9dd75f1f1a ext4: fix nomblk_io_submit option so it correctly converts uninit blocks
Bug discovered by Jan Kara:

Finally, commit 1449032be1 returned back
the old IO submission code but apparently it forgot to return the old
handling of uninitialized buffers so we unconditionnaly call
block_write_full_page() without specifying end_io function. So AFAICS
we never convert unwritten extents to written in some cases. For
example when I mount the fs as: mount -t ext4 -o
nomblk_io_submit,dioread_nolock /dev/ubdb /mnt and do
        int fd = open(argv[1], O_RDWR | O_CREAT | O_TRUNC, 0600);
        char buf[1024];
        memset(buf, 'a', sizeof(buf));
        fallocate(fd, 0, 0, 16384);
        write(fd, buf, sizeof(buf));

I get a file full of zeros (after remounting the filesystem so that
pagecache is dropped) instead of seeing the first KB contain 'a's.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
2011-08-13 12:58:21 -04:00
Tao Ma
32c80b32c0 ext4: Resolve the hang of direct i/o read in handling EXT4_IO_END_UNWRITTEN.
EXT4_IO_END_UNWRITTEN flag set and the increase of i_aiodio_unwritten
should be done simultaneously since ext4_end_io_nolock always clear
the flag and decrease the counter in the same time.

We don't increase i_aiodio_unwritten when setting
EXT4_IO_END_UNWRITTEN so it will go nagative and causes some process
to wait forever.

Part of the patch came from Eric in his e-mail, but it doesn't fix the
problem met by Michael actually.

http://marc.info/?l=linux-ext4&m=131316851417460&w=2

Reported-and-Tested-by: Michael Tokarev<mjt@tls.msk.ru>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
2011-08-13 12:30:59 -04:00
Jiaying Zhang
2581fdc810 ext4: call ext4_ioend_wait and ext4_flush_completed_IO in ext4_evict_inode
Flush inode's i_completed_io_list before calling ext4_io_wait to
prevent the following deadlock scenario: A page fault happens while
some process is writing inode A. During page fault,
shrink_icache_memory is called that in turn evicts another inode
B. Inode B has some pending io_end work so it calls ext4_ioend_wait()
that waits for inode B's i_ioend_count to become zero. However, inode
B's ioend work was queued behind some of inode A's ioend work on the
same cpu's ext4-dio-unwritten workqueue. As the ext4-dio-unwritten
thread on that cpu is processing inode A's ioend work, it tries to
grab inode A's i_mutex lock. Since the i_mutex lock of inode A is
still hold before the page fault happened, we enter a deadlock.

Also moves ext4_flush_completed_IO and ext4_ioend_wait from
ext4_destroy_inode() to ext4_evict_inode(). During inode deleteion,
ext4_evict_inode() is called before ext4_destroy_inode() and in
ext4_evict_inode(), we may call ext4_truncate() without holding
i_mutex lock. As a result, there is a race between flush_completed_IO
that is called from ext4_ext_truncate() and ext4_end_io_work, which
may cause corruption on an io_end structure. This change moves
ext4_flush_completed_IO and ext4_ioend_wait from ext4_destroy_inode()
to ext4_evict_inode() to resolve the race between ext4_truncate() and
ext4_end_io_work during inode deletion.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
2011-08-13 12:17:13 -04:00
Curt Wohlgemuth
441c850857 ext4: Fix ext4_should_writeback_data() for no-journal mode
ext4_should_writeback_data() had an incorrect sequence of
tests to determine if it should return 0 or 1: in
particular, even in no-journal mode, 0 was being returned
for a non-regular-file inode.

This meant that, in non-journal mode, we would use
ext4_journalled_aops for directories, symlinks, and other
non-regular files.  However, calling journalled aop
callbacks when there is no valid handle, can cause problems.

This would cause a kernel crash with Jan Kara's commit
2d859db3e4 ("ext4: fix data corruption in inodes with
journalled data"), because we now dereference 'handle' in
ext4_journalled_write_end().

I also added BUG_ONs to check for a valid handle in the
obviously journal-only aops callbacks.

I tested this running xfstests with a scratch device in
these modes:

   - no-journal
   - data=ordered
   - data=writeback
   - data=journal

All work fine; the data=journal run has many failures and a
crash in xfstests 074, but this is no different from a
vanilla kernel.

Signed-off-by: Curt Wohlgemuth <curtw@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
2011-08-13 11:25:18 -04:00
Stefan Richter
aaff12039f firewire: core: handle ack_busy when fetching the Config ROM
Some older Panasonic made camcorders (Panasonic AG-EZ30 and NV-DX110,
Grundig Scenos DLC 2000) reject requests with ack_busy_X if a request is
sent immediately after they sent a response to a prior transaction.
This causes firewire-core to fail probing of the camcorder with "giving
up on config rom for node id ...".  Consequently, programs like kino or
dvgrab are unaware of the presence of a camcorder.

Such transaction failures happen also with the ieee1394 driver stack
(of the 2.4...2.6 kernel series until 2.6.36 inclusive) but with a lower
likelihood, such that kino or dvgrab are generally able to use these
camcorders via the older driver stack.  The cause for firewire-ohci's or
firewire-core's worse behavior is not yet known.  Gap count optimization
in firewire-core is not the cause.  Perhaps the slightly higher latency
of transaction completion in the older stack plays a role.  (ieee1394:
AR-resp DMA context tasklet -> packet completion ktread -> user process;
firewire-core: tasklet -> user process.)

This change introduces retries and delays after ack_busy_X into
firewire-core's Config ROM reader, such that at least firewire-core's
probing and /dev/fw* creation are successful.  This still leaves the
problem that userland processes are facing transaction failures.
gscanbus's built-in retry routines deal with them successfully, but
neither kino's nor dvgrab's do ever succeed.

But at least DV capture with "dvgrab -noavc -card 0" works now.  Live
video preview in kino works too, but not actual capture.

One way to prevent Configuration ROM reading failures in application
programs is to modify libraw1394 to synthesize read responses by means
of firewire-core's Configuration ROM cache.  This would only leave
CMP and FCP transaction failures as a potential problem source for
applications.

Reported-and-tested-by: Thomas Seilund <tps@netmaster.dk>
Reported-and-tested-by: René Fritz <rene@colorcube.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2011-08-13 13:53:30 +02:00
David S. Miller
7612bd8483 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net 2011-08-13 02:26:48 -07:00
Bruce Allan
c6e7f51e73 e1000e: workaround invalid Tx/Rx tail descriptor register write
When the Manageability Engine (ME) is enabled on 82579, it periodically
accesses some MAC CSR registers.  There is an arbiter in hardware which
prevents simultaneous access of these registers by the host software, i.e.
the driver.  There is a hardware bug in the aribter that signals a host
access of the registers later than it actually happens.  A write of the
Transmit or Receive Descriptor Tail register could result in an incorrect
value if the driver and ME perform simultaneous accesses which could result
in an access to an invalid memory address.  This would return an
Unsupported Request which could hang the hardware.  Workaround the issue by
checking the FWSM register bit24 which is set by ME before it accesses the
MAC CSR registers.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-13 02:15:38 -07:00
Bruce Allan
0ed013e28f e1000e: workaround for packet drop on 82579 at 100Mbps
The MAC can drop short packets when the PHY detects noise on the line at
100Mbps due to a timing issue.  Workaround the issue by increasing the PLL
counter so the PHY properly recognizes the synchronization pattern from the
MAC.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-13 02:12:31 -07:00
Bruce Allan
1d2101a712 e1000e: Spurious interrupts & dropped packets with 82577/8/9 in half-duplex
On 82577/8/9 in half-duplex when a received packet is passed from the PHY
to the MAC, if too many preamble octects are stripped from the packet
before arriving at the MAC, it can be misintrepeted as an in-band message
rather than an actual frame.  For example, if the frame contents resembled
an interrupt request in-band message, it would trigger a false interrupt.
In most cases, the packet is just dropped.

By reducing the number of preamble octets stripped from the beginning of
the frame when passing it from the PHY to the MAC, the MAC will interpret
the frame properly.

An additional uses of the magic PHY_REG(770, 16) have been updated with a
define introduced with this patch.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-13 02:11:48 -07:00
Alexander Duyck
63d635b21c ixgbe: Fix FCOE memory leak for DDP packets
This patch is meant to fix a memory leak found via code review for FCOE.
Specifically on DDP flows the SKBs were being dropped without being
recycled, freed, or given to the stack.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-13 02:10:27 -07:00
Russell King
e426f8e39b Merge branch '3.1-fixes-for-rmk' of git://linux-arm.org/linux-2.6-wd into fixes 2011-08-13 09:43:19 +01:00
Christoph Hellwig
c59d87c460 xfs: remove subdirectories
Use the move from Linux 2.6 to Linux 3.x as an excuse to kill the
annoying subdirectories in the XFS source code.  Besides the large
amount of file rename the only changes are to the Makefile, a few
files including headers with the subdirectory prefix, and the binary
sysctl compat code that includes a header under fs/xfs/ from
kernel/.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
2011-08-12 16:21:35 -05:00
Alex Elder
06f8e2d675 xfs: don't expect xfs headers to be in subdirectories
Fix up some #include directives in preparation for moving a few
header files out of xfs source subdirectories.

Note that "xfs_linux.h" also got its quoting convention for included
files switched.

Signed-off-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2011-08-12 13:57:55 -05:00
Julia Lawall
f8afdf481f drivers/net/wireless/wl12xx: add missing kfree
In each case, the freed data should be freed in the error handling code
as
well.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@exists@
local idexpression x;
statement S,S1;
expression E;
identifier fl;
expression *ptr != NULL;
@@

x = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...kfree(x)...+> }
     when any
     when != true x == NULL
x->fl
...>
(
if (x == NULL) S1
|
if (...) { ... when != x
               when forall
(
 return \(0\|<+...x...+>\|ptr\);
|
* return ...;
)
}
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-12 13:33:31 -04:00
Will Deacon
72dc53acd5 ARM: cache: detect VIPT aliasing I-cache on ARMv6
The current cache detection code does not check for an aliasing
I-cache if the D-cache is found to be VIPT aliasing.

This patch fixes the problem by always checking for an aliasing
I-cache on v6 and later.

Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-12 15:41:15 +01:00
Will Deacon
dfc40b24c0 ARM: twd: register clockevents device before enabling PPI
The smp_twd clockevents driver currently enables the local timer PPI
before the clockevents device is registered. This can lead to a kernel
panic if a spurious timer interrupt is generated before registration
has completed since the kernel will treat it as an IPI timer.

This patch moves the clockevents device registration before the IRQ
unmasking so that we can always handle timer interrupts once they can
occur.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-12 15:41:08 +01:00
Will Deacon
5cb843ca0f ARM: realview: ensure visibility of writes during reset
The various reset routines in mach-realview rely on an FPGA to
power-cycle the board after writing some magic runes to memory-mapped
registers.

This patch adds a dsb() following the writes, so that they become
visible before we mdelay(1000) in the arch_reset code. Without this
patch, the timeout would expire sporadically, causing the reset to fail.

Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-12 15:40:57 +01:00
Mark Rutland
7fdd3c4962 ARM: perf: make name of arm_pmu_type consistent
Commit f12482c9 ("ARM: 6974/1: pmu: refactor reservation") changed
{release,reserve}_pmu to take an enum arm_pmu_type as a parameter, but
inconsistently named the parameter `type' or `device'. It would be nice
if these were consistent.

This patch makes use of enum arm_pmu_type consistent, always using
`type'. Related printks are updated, explicitly mentioning `type' also.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-12 15:40:21 +01:00
Mark Rutland
49bef8331a ARM: perf: fix prototype of release_pmu
Commit  f12482c9 ("ARM: 6974/1: pmu: refactor reservation") changed the
prototype of release_pmu, but missed the stub for when
CONFIG_CPU_HAS_PMU is not selected by the platform.

This patch changes the prototype of the stub, preventing possible build
failures when CONFIG_CPU_HAS_PMU is not selected.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-12 15:40:21 +01:00
Florian Fainelli
0ac8e58f38 ARM: fix perf build with uclibc toolchains
libio.h is not provided by uClibc, in order to be able to test the
definition of __UCLIBC__ we need to include stdlib.h, which also
includes stddef.h, providing the definition of 'NULL'.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-12 15:40:20 +01:00
Stefan Richter
a01e836087 firewire: ohci: fix DMA unmapping in an error path
If request_irq failed, we would pass wrong arguments to
dma_free_coherent.  https://bugzilla.redhat.com/show_bug.cgi?id=728185

Reported-by: Mads Kiilerich
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2011-08-12 15:30:08 +02:00
Stefan Richter
9c1176b6a2 firewire: cdev: fix 32 bit userland on 64 bit kernel compat corner cases
Clemens points out that we need to use compat_ptr() in order to safely
cast from u64 to addresses of a 32-bit usermode client.

Before, our conversion went wrong
  - in practice if the client cast from pointer to integer such that
    sign-extension happened, (libraw1394 and libdc1394 at least were not
    doing that, IOW were not affected)
or
  - in theory on s390 (which doesn't have FireWire though) and on the
    tile architecture, regardless of what the client does.
The bug would usually be observed as the initial get_info ioctl failing
with "Bad address" (EFAULT).

Reported-by: Carl Karsten <carl@personnelware.com>
Reported-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2011-08-12 15:30:08 +02:00
Masami Hiramatsu
3f4460a28f perf probe: Filter out redundant inline-instances
With gcc4.6, some instances of concrete inlined function looks redundant
and broken, because it appears inside of a concrete instance and its
call_file and call_line are same as the original abstruct's decl_file
and decl_line respectively.

e.g.
 [  d1aa]    subprogram
             external             (flag) Yes
             name                 (strp) "add_timer"
             decl_file            (data1) 2		;here is original
             decl_line            (data2) 847		;line and file
             prototyped           (flag) Yes
             inline               (data1) inlined (1)
             sibling              (ref4) [  d1c6]
...
 [ 11d84]    subprogram
             abstract_origin      (ref4) [  d1aa]	; concrete instance
             low_pc               (addr) .text+0x000000000000246f <add_timer>
             high_pc              (addr) .text+0x000000000000248b <mod_timer_pending>
             frame_base           (block1)               [   0] call_frame_cfa
             sibling              (ref4) [ 11dd9]
 [ 11d9f]      formal_parameter
               abstract_origin      (ref4) [  d1b9]
               location             (data4) location list [  701b]
 [ 11da8]      inlined_subroutine
               abstract_origin      (ref4) [  d1aa]	; redundant instance
               low_pc               (addr) .text+0x000000000000247e <add_timer+0xf>
               high_pc              (addr) .text+0x0000000000002480 <add_timer+0x11>
               call_file            (data1) 2		; call line and file
               call_line            (data2) 847		; are same as above

Those redundant instances leads unwilling results;

e.g. find probe points inside of functions even if we specify
a function entry as below;

$ perf probe -V add_timer
Available variables at add_timer
        @<add_timer+0>
                struct timer_list*      timer
        @<add_timer+15>
                (No matched variables)

So, this filters out those redundant instances based on call-site and
decl-site information.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110317.19900.59525.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:34:35 -03:00
Masami Hiramatsu
db0d2c6420 perf probe: Search concrete out-of-line instances
gcc 4.6 generates a concrete out-of-line instance when there is a
function which is implicitly inlined somewhere but also has its own
instance. The concrete out-of-line instance means that it has an
abstract origin of the function which is referred by not only
inlined-subroutines but also a concrete subprogram.

Since current dwarf_func_inline_instances() can find only instances of
inlined-subroutines, this introduces new die_walk_instances() to find
both of subprogram and inlined-subroutines.

e.g. without this,
Available variables at sched_group_rt_period
        @<cpu_rt_period_read_uint+9>
                struct task_group*      tg

perf probe failed to find actual subprogram instance of
sched_group_rt_period().

With this,

Available variables at sched_group_rt_period
        @<cpu_rt_period_read_uint+9>
                struct task_group*      tg
        @<sched_group_rt_period+0>
                struct task_group*      tg

Now it found the sched_group_rt_period() itself.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110311.19900.63997.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:32:10 -03:00
Masami Hiramatsu
f182e3e13c perf probe: Avoid searching variables in intermediate scopes
Fix variable searching logic to search one in inner than local scope or
global(CU) scope. In the other words, skip searching in intermediate
scopes.

e.g., in the following code,

int var1;

void inline infunc(int i)
{
    i++;   <--- [A]
}

void func(void)
{
   int var1, var2;
   infunc(var2);
}

At [A], "var1" should point the global variable "var1", however, if user
mis-typed as "var2", variable search should be failed. However, current
logic searches variable infunc() scope, global scope, and then func()
scope. Thus, it can find "var2" variable in func() scope. This may not
be what user expects.

So, it would better not search outer scopes except outermost (compile
unit) scope which contains only global variables, when it failed to find
given variable in local scope.

E.g.

Without this:
$ perf probe -V pre_schedule --externs > without.vars

With this:
$ perf probe -V pre_schedule --externs > with.vars

Check the diff:
$ diff without.vars with.vars
88d87
<               int     cpu
133d131
<               long unsigned int*      switch_count

These vars are actually in the scope of schedule(), the caller of
pre_schedule().

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110305.19900.94374.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:29:34 -03:00
Masami Hiramatsu
221d061182 perf probe: Fix to search local variables in appropriate scope
Fix perf probe to search local variables in appropriate local inlined
function scope. For example, pre_schedule() has only 2 local variables,
as below;

$ perf probe -L pre_schedule
<pre_schedule@/home/mhiramat/ksrc/linux-2.6/kernel/sched.c:0>
      0  static inline void pre_schedule(struct rq *rq, struct task_struct *prev)
         {
      2         if (prev->sched_class->pre_schedule)
      3                 prev->sched_class->pre_schedule(rq, prev);
         }

However, current perf probe shows 4 local variables on pre_schedule(),
because it searches variables in the caller(schedule()) scope.

$ perf probe -V pre_schedule
Available variables at pre_schedule
        @<schedule+445>
                int     cpu
                long unsigned int*      switch_count
                struct rq*      rq
                struct task_struct*     prev

This patch fixes this issue by searching variables in the local scope of
the instance of inlined function. Here is the result.

$ perf probe -V pre_schedule
Available variables at pre_schedule
        @<schedule+445>
                struct rq*      rq
                struct task_struct*     prev

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110259.19900.85664.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:28:45 -03:00
Masami Hiramatsu
13e27d7686 perf probe: Warn when more than one line are given
Check multiple --lines option and print warning informing that only the
first specified --line option is valid.

Changes from the 1st post:

- Accept only the first option instead of the last.
- Fix warning message according to David's comment.
- Mark as a bugfix.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110253.19900.96192.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:27:11 -03:00
Masami Hiramatsu
36c0c588b9 perf probe: Fix to walk all inline instances
Fix line-range collector to walk all instances of inlined function,
because some execution paths can be optimized out depending on the
function argument of instances.

E.g.)
inline_func (arg) {
	if (arg)
		do_something;
	else
		do_another;
}

func_A() {
	inline_func(1)
}

func_B() {
	inline_func(0)
}

In this case, func_A may have only do_something code and func_B may have
only do_another.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <masami.hiramatsu@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110247.19900.93702.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:25:38 -03:00
Masami Hiramatsu
b0e9cb2802 perf probe: Fix to search nested inlined functions in CU
Fix perf probe to walk through the lines of all nested inlined function
call sites and declared lines when a whole CU is passed to the line
walker.

The die_walk_lines() can have two different type of DIEs, subprogram (or
inlined-subroutine) DIE and CU DIE.

If a caller passes a subprogram DIE, this means that the walker walk on
lines of given subprogram. In this case, it just needs to search on
direct children of DIE tree for finding call-site information of inlined
function which directly called from given subprogram.

On the other hand, if a caller passes a CU DIE to the walker, this means
that the walker have to walk on all lines in the source files included
in given CU DIE. In this case, it has to search whole DIE trees of all
subprograms to find the call-site information of all nested inlined
functions.

Without this patch:

$ perf probe --line kernel/cpu.c:151-157
</home/mhiramat/ksrc/linux-2.6/kernel/cpu.c:151>

         static int cpu_notify(unsigned long val, void *v)
         {
    154         return __cpu_notify(val, v, -1, NULL);
         }

With this:
$ perf probe --line kernel/cpu.c:151-157
</home/mhiramat/ksrc/linux-2.6/kernel/cpu.c:151>

    152  static int cpu_notify(unsigned long val, void *v)
         {
    154         return __cpu_notify(val, v, -1, NULL);
         }

As you can see, --line option with source line range shows the declared
lines as probe-able.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110241.19900.34994.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:23:39 -03:00
Masami Hiramatsu
a128405c6b perf probe: Fix line walker to check CU correctly
Fix line walker to check whether a given DIE is CU or not.

Actually this function accepts CU, subprogram and inlined_subroutine
DIEs.

Without this fix, perf probe always fails to analyze lines on inlined
functions;

$ perf probe -L pre_schedule
Debuginfo analysis failed. (-2)
  Error: Failed to show lines. (-2)

This fixes that bug, as below.

$ perf probe -L pre_schedule
<pre_schedule@/home/mhiramat/ksrc/linux-2.6/kernel/sched.c:0>
      0  static inline void pre_schedule(struct rq *rq, struct task_struct *prev
         {
      2         if (prev->sched_class->pre_schedule)
      3                 prev->sched_class->pre_schedule(rq, prev);
         }

         /* rq->lock is NOT held, but preemption is disabled */

Changes from v1:
 - Update against current tip tree.(Fix dwarf-aux.c)

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <masami.hiramatsu@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110235.19900.20614.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:22:46 -03:00
Masami Hiramatsu
8afa2a707d perf probe: Fix a memory leak for scopes array
Fix a memory leak for scopes array when it finds a variable in the
global scope.

Reviewed-by: Pekka Enberg <penberg@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20110811110229.19900.63019.stgit@fedora15
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 09:21:15 -03:00
Vasiliy Kulikov
e9b52ef222 perf: fix temporary file ownership check
A file in /tmp/ might be a symlink, so lstat() should be used instead of
stat().

Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20110811205537.GA22864@albatros
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-12 08:28:17 -03:00
Matthew Garrett
bcc65fd8e9 drm/radeon: re-POST the asic on Apple hardware when booted via EFI
At least some Apples program the GPU into a state that wedges the engine
once userspace starts trying to perform accelerated operations. Executing
the Atom init scripts gets the hardware back into a working state. The
same hardware works fine when booted via BIOS emulation, so let's just
execute the init scripts on Apples when we're using EFI.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-12 11:04:29 +01:00
Matthew Garrett
13bb9430cd drm/radeon: Allow panel preferred EDID to override BIOS native mode
We have two sources of information about panel capabilities on mobile
radeon - the BIOS, which gives us a native mode, and the panel's preferred
mode. In theory these two will always match, but there's some corner cases
where the BIOS hasn't been fully initialised and so the native mode in it
ends up with default values. However, if we get a panel with reasonable
EDID, it's probably the case that the panel's preferred mode does actually
represent the panel capabilities. This patch handles that case by replacing
the native mode with the panel's preferred mode if the resolutions don't
match. Systems without a valid internal panel EDID will still use the BIOS
native mode.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-12 11:02:46 +01:00
Alex Deucher
92bdfd4a35 drm/radeon/kms: make some watermark messages debug only
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-12 10:49:43 +01:00
Alex Deucher
33ae1827d6 drm/radeon/kms: fix regression is handling >2 heads on cedar/caicos
Need to add support for 4 crtcs when setting the possible crtcs
for the encoders.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-12 10:48:08 +01:00
Alex Deucher
73104b5cfe drm/radeon/kms: don't enable connectors that are off in the hotplug handler
If we get a hotplug event on an connector that is off, don't
attempt to turn it on or off, it should already be off.

Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=728228

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-12 10:47:25 +01:00
Sebastian Andrzej Siewior
6193d6997c usb: musb: gadget: fix error path
In case one "forgot" to load the receiver i.e. doing
|modprobe omap2430
|modprobe musb_hdrc

he ends up with:

|musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
|HS USB OTG: no transceiver configured
|musb-hdrc musb-hdrc: musb_init_controller failed with status -19
|(NULL device *): gadget not registered.
|Unable to handle kernel NULL pointer dereference at virtual address 0000001c
|Internal error: Oops: 17 [#1] SMP
|[<c011383c>] (sysfs_find_dirent+0x4/0x60) from [<c01138c0>] (sysfs_get_dirent+0x28/0x78)
|[<c01138c0>] (sysfs_get_dirent+0x28/0x78) from [<c0115b78>] (sysfs_unmerge_group+0x1c/0x90)
|[<c0115b78>] (sysfs_unmerge_group+0x1c/0x90) from [<c0179ba4>] (dpm_sysfs_remove+0x14/0x3c)
|[<c0179ba4>] (dpm_sysfs_remove+0x14/0x3c) from [<c01742f8>] (device_del+0x40/0x1b4)
|[<c01742f8>] (device_del+0x40/0x1b4) from [<c0174478>] (device_unregister+0xc/0x18)
|[<c0174478>] (device_unregister+0xc/0x18) from [<bf0489b4>] (musb_free+0x24/0x88 [musb_hdrc])
|[<bf0489b4>] (musb_free+0x24/0x88 [musb_hdrc]) from [<bf057d18>] (musb_probe+0xb50/0xe3c [musb_hdrc])
|[<bf057d18>] (musb_probe+0xb50/0xe3c [musb_hdrc]) from [<c01779c4>] (platform_drv_probe+0x1c/0x24)

The problem is that musb_free() tries to figure out what was
initializued and what wasn't and clean up only the initialized part.
This works well for usb_del_gadget_udc() but device_unregister() can't
deal with it. Therefore we rely on the fact the we always have a parent
device and only then remove the device.
I broke this in 0f91349 ("usb: gadget: convert all users to the new udc
infrastructure")

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 12:06:34 +03:00
Sebastian Andrzej Siewior
bb8070c29c usb: gadget: f_phonet: unlock in error case
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 12:03:15 +03:00
Bob Liu
ad50c1b20f usb: musb: blackfin: include prefetch head file
After the prefetch/list.h restructure, drivers need to explicitly include
linux/prefetch.h in order to use the prefetch() function.  Otherwise, the
current driver fails to build:
drivers/usb/musb/blackfin.c: In function 'musb_write_fifo':
drivers/usb/musb/blackfin.c:43: error: implicit declaration of function
'prefetch'

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:51 +03:00
Felipe Balbi
240a16e2cd usb: musb: tusb6010: fix compilation
earlier commits have broken compilation of
tusb6010 glue layer, fix it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:50 +03:00
Kuninori Morimoto
cf6808cb09 usb: gadget: renesas_usbhs: fix DMA build by including dma-mapping.h
Include dma-mapping.h to fix build of the renesas_usbhs driver

| CC      drivers/usb/renesas_usbhs/mod_gadget.o
| drivers/usb/renesas_usbhs/mod_gadget.c: In function 'usbhsg_dma_map':
| drivers/usb/renesas_usbhs/mod_gadget.c:190: error: implicit declaration of function 'dma_map_single'
| drivers/usb/renesas_usbhs/mod_gadget.c:192: error: implicit declaration of function 'dma_sync_single_for_device'
| drivers/usb/renesas_usbhs/mod_gadget.c:196: error: implicit declaration of function 'dma_mapping_error'
| drivers/usb/renesas_usbhs/mod_gadget.c: In function 'usbhsg_dma_unmap':
| drivers/usb/renesas_usbhs/mod_gadget.c:217: error: implicit declaration of function 'dma_unmap_single'
| drivers/usb/renesas_usbhs/mod_gadget.c:219: error: implicit declaration of function 'dma_sync_single_for_cpu'
| make[5]: *** [drivers/usb/renesas_usbhs/mod_gadget.o] Error 1
| make[4]: *** [drivers/usb/renesas_usbhs] Error 2

Reported-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:48 +03:00
Per Forlin
f847a79ab3 usb: musb: cppi: fix build errors due to DBG and missing musb variable
Replace DBG with dev_dbg and fix invalid access of musb->controller.
With this patch cppi_dma builds successfully.

Cc: <stable@kernel.org>
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:47 +03:00
Per Forlin
afbd0749c0 usb: musb: ux500: replace missing DBG with dev_dbg
ux500_dma.c fail to compile becase DBG has been removed from musb_debug.
Use dev_dbg for all prints.

Cc: stable@vger.kernel.org
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Mian Yousaf Kaukab<mian.yousaf.kaukab@stericsson.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:46 +03:00
Per Forlin
d366d39bab usb: musb: ux500: set dma config for both src and dst
The dma driver requires both src and dst to be set.
This fix is needed in order to run gadget mass storage.
Patch is verified on snowball.

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:45 +03:00
John Stultz
93e098a8fc usb: musb: fix oops on musb_gadget_pullup
an 'unhandled fault' is causes when a gadget driver calls
usb_gadget_connect() while the USB cable isn't plugged into
the OTG port.

the fault is caused by an access to MUSB's memory space
while its clock is turned off due to pm_runtime kicking
in.

in order to fix the fault, we enclose musb_gadget_pullup()
with pm_runtime_get_sync() ... pm_runtime_put() calls to
be sure we will always reach that path with clock turned on.

[ balbi@ti.com : simplified commit log; removed few things
	which didn't belong there ]

Cc: stable@kernel.org
Reported-by: Zach Pfeffer <zach.pfeffer@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:42 +03:00
Ming Lei
15154962f7 usb: host: ehci-omap: fix .remove and failure handling path of .probe(v1)
Obviously, disabling & put regulator and iounmap(hcd->regs)
are missed in .remove and failure handling path of .probe,
so add them.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Keshava Munegowda <Keshava_mgowda@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:39 +03:00
Sebastian Bauer
71964b9a0c usb: gadget: hid: don't STALL when processing a HID Descriptor request
This is a patch to fix an issue with the HID gadget which, at the moment,
returns STALL on a HID descriptor request. Essentially, the patch changes
the hid gadget such that a request for the HID descriptor is handled by
copying the descriptor into the response buffer, rather than falling
through the default case, in which the request is answered by a STALL.

Signed-off-by: Sebastian Bauer <mail@sebastianbauer.info>
Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:37 +03:00
Rabin Vincent
26e5c3e227 usb: musb: fix Kconfig
After 622859634 (usb: musb: drop a gigantic amount of ifdeferry):

 - USB_GADGET_MUSB_HDRC is no longer selectable because it
   depends on the removed USB_MUSB_PERIPHERAL and USB_MUSB_OTG
   options

 - The Kconfig comment still says "Enable Host or Gadget support
   to see Inventra options", even though you now need to enable
   both of them to see Inventra options.

Fix the dependency and drop the anyway unnecessary comment.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:36 +03:00
Sergei Trofimovich
74c6f3a42a usb: musb: tusb6010_omap: fix build failure: error: 'musb' undeclared
CC      drivers/usb/musb/tusb6010_omap.o
drivers/usb/musb/tusb6010_omap.c: In function 'tusb_omap_use_shared_dmareq':
drivers/usb/musb/tusb6010_omap.c:92: error: 'musb' undeclared (first use in this function)
drivers/usb/musb/tusb6010_omap.c:92: error: (Each undeclared identifier is reported only once
drivers/usb/musb/tusb6010_omap.c:92: error: for each function it appears in.)

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:35 +03:00
Sebastian Andrzej Siewior
6a22158c59 usb: gadget: composite: fix bMaxPacketSize for SuperSpeed
For bMaxPacketSize0 we usually take what is specified in ep0->maxpacket.
This is fine in most cases, however on SuperSpeed bMaxPacketSize0
specifies the exponent instead of the actual size in bytes. The only
valid value on SS is 9 which denotes 512 bytes.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:31 +03:00
Sebastian Andrzej Siewior
aba1350fda usb: gadget: fusb300: remove #if 0 block
The code in this block is unused and the Author is fine with removing:

| These functions were used to debug unstable hw fifo while developing
| fusb300.  It's much more stable now.
| So these functions can be removed.

Cc: "Wendy Yuan-Hsin Chen" <yhchen@faraday-tech.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:30 +03:00
Axel Lin
567b20e02b usb: gadget: s3c2410_udc: fix unterminated platform_device_id table
platform_device_id structures need a NULL terminating
entry, add it.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-08-12 11:52:29 +03:00
Stephen Warren
b33f9cbd67 regmap: Specify a module license
CONFIG_REGMAP_I2C/SPI are set to m when selected by a tristate config
option that's set to m. The regmap modules don't specify a license, so
fail to link to regmap_init at load time, since that is EXPORT_SYMBOL_GPL.
Fix this by specifying a license for the regmap modules.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-12 10:42:02 +09:00
Peter Hurley
687beaa0d1 Bluetooth: cmtp: Fix session cleanup on failed conn add
Once the session thread is running, cleanup must be handled
by the session thread only.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
ff062ea109 Bluetooth: hidp: Don't release device ref if never held
When an hidp connection is added for a boot protocol input
device, don't release a device reference that was never
acquired. The device reference is acquired when the session
is linked to the session list (which hasn't happened yet when
hidp_setup_input is called).

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
615aedd6e5 Bluetooth: hidp: Only free input device if failed register
When an hidp connection is added for a boot protocol input
device, only free the allocated device if device registration fails.
Subsequent failures should only unregister the device (the input
device api documents that unregister will also free the allocated
device).

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
1c97e94c0b Bluetooth: hidp: Fix memory leak of cached report descriptor
Free the cached HID report descriptor on thread terminate.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
e9d5cb541b Bluetooth: hidp: Fix session cleanup on failed conn add
Once the session thread is running, cleanup must be
handled by the session thread only.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:28 -03:00
Peter Hurley
7176522cdc Bluetooth: cmtp: Fix deadlock in session deletion
Commit fada4ac339 introduced the usage of kthread API.
kthread_stop is a blocking function which returns only when
the thread exits. In this case, the thread can't exit because it's
waiting for the write lock, which is being held by cmtp_del_connection()
which is waiting for the thread to exit -- deadlock.

Revert cmtp_reset_ctr to its original behavior: non-blocking signalling
for the session to terminate.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Peter Hurley
751c10a568 Bluetooth: bnep: Fix deadlock in session deletion
Commit f4d7cd4a4c introduced the usage of kthread API.
kthread_stop is a blocking function which returns only when
the thread exits. In this case, the thread can't exit because it's
waiting for the write lock, which is being held by bnep_del_connection()
which is waiting for the thread to exit -- deadlock.

Use atomic_t/wake_up_process instead to signal to the thread to exit.

Signed-off-by: Jaikumar Ganesh <jaikumar@google.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Szymon Janc
7bdb8a5cf1 Bluetooth: Don't use cmd_timer to timeout HCI reset command
No command should be send before Command Complete event for HCI
reset is received. This fix regression introduced by commit
6bd32326cda(Bluetooth: Use proper timer for hci command timout)
for chips whose reset command takes longer to complete (e.g. CSR)
resulting in next command being send before HCI reset completed.

Signed-off-by: Szymon Janc <szymon@janc.net.pl>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Chen Ganir
6be6b11f00 Bluetooth: Fixed wrong L2CAP Sock timer value
L2CAP connection timeout needs to be assigned as miliseconds
and not as jiffies.

Signed-off-by: Chen Ganir <chen.ganir@ti.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Peter Hurley
a71a0cf4e9 Bluetooth: l2cap: Fix lost wakeup waiting for ERTM acks
Fix race condition which can result in missing wakeup during
l2cap socket shutdown.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Peter Hurley
3a3f5c7df5 Bluetooth: cmtp: Fix lost wakeup of session thread
Fix race condition which can result in missing the wakeup intended
to stop the session thread.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:27 -03:00
Peter Hurley
38d5755561 Bluetooth: bnep: Fix lost wakeup of session thread
Fix race condition which can result in missing the wakeup intended
to stop the session thread.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00
Peter Hurley
552b0d3cb9 Bluetooth: sco: Fix lost wakeups waiting to accept socket
Fix race conditions which can cause lost wakeups (or missed signals)
while waiting to accept a sco socket connection.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00
Peter Hurley
f9a3c20aa0 Bluetooth: l2cap: Fix lost wakeups waiting to accept socket
Fix race conditions which can cause lost wakeups (or misssed signals)
while waiting to accept an l2cap socket connection.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00
Peter Hurley
9be4e3fbf2 Bluetooth: Fix lost wakeups waiting for sock state change
Fix race conditions which can cause lost wakeups while waiting
for sock state to change.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00
Peter Hurley
950e2d51e8 Bluetooth: rfcomm: Fix lost wakeups waiting to accept socket
Fix race conditions which can cause lost wakeups (or missed
signals) while waiting to accept an rfcomm socket connection.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00
Peter Hurley
e5842cdb0f Bluetooth: rfcomm: Remove unnecessary krfcommd event
Removed superfluous event handling which was used to signal
that the rfcomm kthread had been woken. This appears to have been
used to prevent lost wakeups. Correctly ordering when the task
state is set to TASK_INTERRUPTIBLE is sufficient to prevent lost wakeups.

To prevent wakeups which occurred prior to initially setting
TASK_INTERRUPTIBLE from being lost, the main work of the thread loop -
rfcomm_process_sessions() - is performed prior to sleeping.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00
Ricardo Mendoza
8e7c3d2e4b Bluetooth: Add Toshiba laptops AR30XX device ID
Blacklist Toshiba-branded AR3011 based AR5B195 [0930:0215] and add to
ath3k.c for firmware loading.

Signed-off-by: Ricardo Mendoza <ricmm@gentoo.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:26 -03:00
Paul Bolle
4935f1c164 Bluetooth: btusb: be quiet on device disconnect
Disabling the bluetooth usb device embedded in (some) ThinkPads tends to
lead to errors like these:
    btusb_bulk_complete: hci0 urb ffff88011b9bfd68 failed to resubmit (19)
    btusb_intr_complete: hci0 urb ffff88011b46a318 failed to resubmit (19)
    btusb_bulk_complete: hci0 urb ffff88011b46a000 failed to resubmit (19)

That is because usb_disconnect() doesn't "quiesces" pending urbs.

Disconnecting a device is a normal thing to happen so it's no big deal
that usb_submit_urb() returns -ENODEV. The simplest way to get rid of
these errors is to stop treating that return as an error. Trivial,
actually.

While we're at it, add comments to be explicit about the reasons we're
not complaining about -EPERM and -ENODEV.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:25 -03:00
Dan Carpenter
8475e2336c Bluetooth: unlock if allocation fails in hci_blacklist_add()
There was a small typo here so we never actually hit the goto which
would call hci_dev_unlock_bh().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-08-11 19:50:25 -03:00
Stanislaw Gruszka
674db13444 rt2x00: fix crash in rt2800usb_get_txwi
Patch should fix this oops:

BUG: unable to handle kernel NULL pointer dereference at 000000a0
IP: [<f81b30c9>] rt2800usb_get_txwi+0x19/0x70 [rt2800usb]
*pdpt = 0000000000000000 *pde = f000ff53f000ff53
Oops: 0000 [#1] SMP
Pid: 198, comm: kworker/u:3 Tainted: G        W   3.0.0-wl+ #9 LENOVO 6369CTO/6369CTO
EIP: 0060:[<f81b30c9>] EFLAGS: 00010283 CPU: 1
EIP is at rt2800usb_get_txwi+0x19/0x70 [rt2800usb]
EAX: 00000000 EBX: f465e140 ECX: f4494960 EDX: ef24c5f8
ESI: 810f21f5 EDI: f1da9960 EBP: f4581e80 ESP: f4581e70
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process kworker/u:3 (pid: 198, ti=f4580000 task=f4494960 task.ti=f4580000)
Call Trace:
 [<f804790f>] rt2800_txdone_entry+0x2f/0xf0 [rt2800lib]
 [<c045110d>] ? warn_slowpath_common+0x7d/0xa0
 [<f81b3a38>] ? rt2800usb_work_txdone+0x288/0x360 [rt2800usb]
 [<f81b3a38>] ? rt2800usb_work_txdone+0x288/0x360 [rt2800usb]
 [<f81b3a13>] rt2800usb_work_txdone+0x263/0x360 [rt2800usb]
 [<c046a8d6>] process_one_work+0x186/0x440
 [<c046a85a>] ? process_one_work+0x10a/0x440
 [<f81b37b0>] ? rt2800usb_probe_hw+0x120/0x120 [rt2800usb]
 [<c046c283>] worker_thread+0x133/0x310
 [<c04885db>] ? trace_hardirqs_on+0xb/0x10
 [<c046c150>] ? manage_workers+0x1e0/0x1e0
 [<c047054c>] kthread+0x7c/0x90
 [<c04704d0>] ? __init_kthread_worker+0x60/0x60
 [<c0826b42>] kernel_thread_helper+0x6/0x1

Oops might happen because we check rt2x00queue_empty(queue) twice,
but this condition can change and we can process entry in
rt2800_txdone_entry(), which was already processed by
rt2800usb_txdone_entry_check() -> rt2x00lib_txdone_noinfo() and
has nullify entry->skb .

Reported-by: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-11 14:34:37 -04:00
Stanislaw Gruszka
df71c9cfce rt2x00: fix order of entry flags modification
In rt2800usb_work_txdone we check flags in order:

- ENTRY_OWNER_DEVICE_DATA
- ENTRY_DATA_STATUS_PENDING
- ENTRY_DATA_IO_FAILED

Modify flags in separate order in rt2x00usb_interrupt_txdone, to avoid
processing entries in _txdone with wrong flags or skip processing
ready entries.

Reported-by: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-11 14:34:36 -04:00
Stanislaw Gruszka
4b1bfb7d2d rt2x00: fix crash in rt2800usb_write_tx_desc
Patch should fix this oops:

BUG: unable to handle kernel NULL pointer dereference at 000000a0
IP: [<f8e06078>] rt2800usb_write_tx_desc+0x18/0xc0 [rt2800usb]
*pdpt = 000000002408c001 *pde = 0000000024079067 *pte = 0000000000000000
Oops: 0000 [#1] SMP
EIP: 0060:[<f8e06078>] EFLAGS: 00010282 CPU: 0
EIP is at rt2800usb_write_tx_desc+0x18/0xc0 [rt2800usb]
EAX: 00000035 EBX: ef2bef10 ECX: 00000000 EDX: d40958a0
ESI: ef1865f8 EDI: ef1865f8 EBP: d4095878 ESP: d409585c
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Call Trace:
 [<f8da5e85>] rt2x00queue_write_tx_frame+0x155/0x300 [rt2x00lib]
 [<f8da424c>] rt2x00mac_tx+0x7c/0x370 [rt2x00lib]
 [<c04882b2>] ? mark_held_locks+0x62/0x90
 [<c081f645>] ? _raw_spin_unlock_irqrestore+0x35/0x60
 [<c04884ba>] ? trace_hardirqs_on_caller+0x5a/0x170
 [<c04885db>] ? trace_hardirqs_on+0xb/0x10
 [<f8d618ac>] __ieee80211_tx+0x5c/0x1e0 [mac80211]
 [<f8d631fc>] ieee80211_tx+0xbc/0xe0 [mac80211]
 [<f8d63163>] ? ieee80211_tx+0x23/0xe0 [mac80211]
 [<f8d632e1>] ieee80211_xmit+0xc1/0x200 [mac80211]
 [<f8d63220>] ? ieee80211_tx+0xe0/0xe0 [mac80211]
 [<c0487d45>] ? lock_release_holdtime+0x35/0x1b0
 [<f8d63986>] ? ieee80211_subif_start_xmit+0x446/0x5f0 [mac80211]
 [<f8d637dd>] ieee80211_subif_start_xmit+0x29d/0x5f0 [mac80211]
 [<f8d63924>] ? ieee80211_subif_start_xmit+0x3e4/0x5f0 [mac80211]
 [<c0760188>] ? sock_setsockopt+0x6a8/0x6f0
 [<c0760000>] ? sock_setsockopt+0x520/0x6f0
 [<c076daef>] dev_hard_start_xmit+0x2ef/0x650

Oops might happen because we perform parallel putting new entries in a
queue (rt2x00queue_write_tx_frame()) and removing entries after
finishing transmitting (rt2800usb_work_txdone()). There are cases when
_txdone may process an entry that was not fully send and nullify
entry->skb .

To fix check in _txdone if entry has flags that indicate pending
transmission and wait until flags get cleared.

Reported-by: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-11 14:34:36 -04:00
Shirish Pargaonkar
e22906c564 cifs: Do not set cifs/ntfs acl using a file handle (try #4)
Set security descriptor using path name instead of a file handle.
We can't be sure that the file handle has adequate permission to
set a security descriptor (to modify DACL).

Function set_cifs_acl_by_fid() has been removed since we can't be
sure how a file was opened for writing, a valid request can fail
if the file was not opened with two above mentioned permissions.
We could have opted to add on WRITE_DAC and WRITE_OWNER permissions
to file opens and then use that file handle but adding addtional
permissions such as WRITE_DAC and WRITE_OWNER could cause an
any open to fail.

And it was incorrect to look for read file handle to set a
security descriptor anyway.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-11 18:23:45 +00:00
Steve French
789e666123 [CIFS] Cleanup use of CONFIG_CIFS_STATS2 ifdef to make transport routines more readable
Christoph had requested that the stats related code (in
CONFIG_CIFS_STATS2) be moved into helpers to make code flow more
readable.   This patch should help.   For example the following
section from transport.c

                       spin_unlock(&GlobalMid_Lock);
                       atomic_inc(&ses->server->num_waiters);
                       wait_event(ses->server->request_q,
                                  atomic_read(&ses->server->inFlight)
                                    < cifs_max_pending);
                       atomic_dec(&ses->server->num_waiters);
                       spin_lock(&GlobalMid_Lock);

becomes simpler (with the patch below):
                       spin_unlock(&GlobalMid_Lock);
                       cifs_num_waiters_inc(server);
                       wait_event(server->request_q,
                                  atomic_read(&server->inFlight)
                                    < cifs_max_pending);
                       cifs_num_waiters_dec(server);
                       spin_lock(&GlobalMid_Lock);

Reviewed-by: Jeff Layton <jlayton@redhat.com>
CC: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
2011-08-11 18:23:45 +00:00
Axel Lin
22f83205e5 Input: tegra-kbc - correct call to input_free_device
If kzalloc for kbc fails, then we have NULL pointer dereference while
calling input_free_device(kbc->idev) in the error handling.
So it is safer to always use the original name, input_dev.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-11 09:23:06 -07:00
Axel Lin
d9b830fa44 Input: mpu3050 - correct call to input_free_device
input_free_device() should be used if input_register_device() was not called
yet or if it failed.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-11 09:22:40 -07:00
Jiri Olsa
f57b05ed53 perf report: Use properly build_id kernel binaries
If we bring the recorded perf data together with kernel binary from another
machine using:

	on server A:
	perf archive

	on server B:
	tar xjvf perf.data.tar.bz2 -C ~/.debug

the build_id kernel dso is not properly recognized during the "perf report"
command on server B.

The reason is, that build_id dsos are added during the session initialization,
while the kernel maps are created during the sample event processing.

The machine__create_kernel_maps functions ends up creating new dso object for
kernel, but it does not check if we already have one added by build_id
processing.

Also the build_id reading ABI quirk added in commit:

 - commit b25114817a
   perf build-id: Add quirk to deal with perf.data file format breakage

populates the "struct build_id_event::pid" with 0, which
is later interpreted as DEFAULT_GUEST_KERNEL_ID.

This is not always correct, so it's better to guess the pid
value based on the "struct build_id_event::header::misc" value.

- Tested with data generated on x86 kernel version v2.6.34
  and reported back on x86_64 current kernel.
- Not tested for guest kernel case.

Note the problem stays for PERF_RECORD_MMAP events recorded by perf that
does not use proper pid (HOST_KERNEL_ID/DEFAULT_GUEST_KERNEL_ID). They are
misinterpreted within the current perf code. Probably there's not much we
can do about that.

Cc: Avi Kivity <avi@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Link: http://lkml.kernel.org/r/20110601194346.GB1934@jolsa.brq.redhat.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-11 08:58:03 -03:00
Shaohua Li
bcf30e75b7 block: improve rq_affinity placement
This patch reverts commit 35ae66e0a09ab70ed(block: Make rq_affinity = 1
work as expected). The purpose is to avoid an unnecessary IPI.
Let's take an example. My test box has cpu 0-7, one socket. Say request is
added from CPU 1, blk_complete_request() occurs at CPU 7. Without the reverted
patch, softirq will be done at CPU 7. With it, an IPI will be directed to CPU
0, and softirq will be done at CPU 0. In this case, doing softirq at CPU 0 and
CPU 7 have no difference from cache sharing point view and we can avoid an
ipi if doing it in CPU 7.
An immediate concern is this is just like QUEUE_FLAG_SAME_FORCE, but actually
not. blk_complete_request() is running in interrupt handler, and currently
I/O controller doesn't support multiple interrupts (I checked several LSI
cards and AHCI), so only one CPU can run blk_complete_request(). This is
still quite different as QUEUE_FLAG_SAME_FORCE.
Since only one CPU runs softirq, the only difference with below patch is
softirq not always runs at the first CPU of a group.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-11 10:39:04 +02:00
Namhyung Kim
c09c47caed blktrace: add FLUSH/FUA support
Add FLUSH/FUA support to blktrace. As FLUSH precedes WRITE and/or
FUA follows WRITE, use the same 'F' flag for both cases and
distinguish them by their (relative) position. The end results
look like (other flags might be shown also):

 - WRITE:            W
 - WRITE_FLUSH:      FW
 - WRITE_FUA:        WF
 - WRITE_FLUSH_FUA:  FWF

Note that we reuse TC_BARRIER due to lack of bit space of act_mask
so that the older versions of blktrace tools will report flush
requests as barriers from now on.

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-11 10:36:05 +02:00
Matthew Wilcox
8e4bf84474 Move some REQ flags to the common bio/request area
REQ_SECURE, REQ_FLUSH and REQ_FUA may all be set on a bio as well as
on a request, so relocate them to the shared part of the enum.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-11 10:36:03 +02:00
Randy Dunlap
30eefc9584 xen: xen-selfballoon.c needs more header files
Fix build errors (found when CONFIG_SYSFS is not enabled):

drivers/xen/xen-selfballoon.c:446: warning: data definition has no type or storage class
drivers/xen/xen-selfballoon.c:446: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL'
drivers/xen/xen-selfballoon.c:446: warning: parameter names (without types) in function declaration
drivers/xen/xen-selfballoon.c:485: error: expected declaration specifiers or '...' before string constant
drivers/xen/xen-selfballoon.c:485: warning: data definition has no type or storage class
drivers/xen/xen-selfballoon.c:485: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE'
drivers/xen/xen-selfballoon.c:485: warning: function declaration isn't a prototype

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-08-10 15:21:46 -04:00
Arnaldo Carvalho de Melo
fc8ed7be73 perf top browser: Remove spurious helpline update
It will be immediately replaced in perf_top_browser__run.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-q7e2jzb44elqpkvdllk94x0i@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-10 12:42:26 -03:00
Sarah Sharp
585df1d90c xhci: Remove TDs from TD lists when URBs are canceled.
When a driver tries to cancel an URB, and the host controller is dying,
xhci_urb_dequeue will giveback the URB without removing the xhci_tds
that comprise that URB from the td_list or the cancelled_td_list.  This
can cause a race condition between the driver calling URB dequeue and
the stop endpoint command watchdog timer.

If the timer fires on a dying host, and a driver attempts to resubmit
while the watchdog timer has dropped the xhci->lock to giveback a
cancelled URB, URBs may be given back by the xhci_urb_dequeue() function.
At that point, the URB's priv pointer will be freed and set to NULL, but
the TDs will remain on the td_list.  This will cause an oops in
xhci_giveback_urb_in_irq() when the watchdog timer attempts to loop
through the endpoints' td_lists, giving back killed URBs.

Make sure that xhci_urb_dequeue() removes TDs from the TD lists and
canceled TD lists before it gives back the URB.

This patch should be backported to kernels as old as 2.6.36.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Andiry Xu <andiry.xu@amd.com>
Cc: stable@kernel.org
2011-08-09 14:49:25 -07:00
Sarah Sharp
522989a27c xhci: Fix failed enqueue in the middle of isoch TD.
When an isochronous transfer is enqueued, xhci_queue_isoc_tx_prepare()
will ensure that there is enough room on the transfer rings for all of the
isochronous TDs for that URB.  However, when xhci_queue_isoc_tx() is
enqueueing individual isoc TDs, the prepare_transfer() function can fail
if the endpoint state has changed to disabled, error, or some other
unknown state.

With the current code, if Nth TD (not the first TD) fails, the ring is
left in a sorry state.  The partially enqueued TDs are left on the ring,
and the first TRB of the TD is not given back to the hardware.  The
enqueue pointer is left on the TRB after the last successfully enqueued
TD.  This means the ring is basically useless.  Any new transfers will be
enqueued after the failed TDs, which the hardware will never read because
the cycle bit indicates it does not own them.  The ring will fill up with
untransferred TDs, and the endpoint will be basically unusable.

The untransferred TDs will also remain on the TD list.  Since the td_list
is a FIFO, this basically means the ring handler will be waiting on TDs
that will never be completed (or worse, dereference memory that doesn't
exist any more).

Change the code to clean up the isochronous ring after a failed transfer.
If the first TD failed, simply return and allow the xhci_urb_enqueue
function to free the urb_priv.  If the Nth TD failed, first remove the TDs
from the td_list.  Then convert the TRBs that were enqueued into No-op
TRBs.  Make sure to flip the cycle bit on all enqueued TRBs (including any
link TRBs in the middle or between TDs), but leave the cycle bit of the
first TRB (which will show software-owned) intact.  Then move the ring
enqueue pointer back to the first TRB and make sure to change the
xhci_ring's cycle state to what is appropriate for that ring segment.

This ensures that the No-op TRBs will be overwritten by subsequent TDs,
and the hardware will not start executing random TRBs because the cycle
bit was left as hardware-owned.

This bug is unlikely to be hit, but it was something I noticed while
tracking down the watchdog timer issue.  I verified that the fix works by
injecting some errors on the 250th isochronous URB queued, although I
could not verify that the ring is in the correct state because uvcvideo
refused to talk to the device after the first usb_submit_urb() failed.
Ring debugging shows that the ring looks correct, however.

This patch should be backported to kernels as old as 2.6.36.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Andiry Xu <andiry.xu@amd.com>
Cc: stable@kernel.org
2011-08-09 14:49:05 -07:00
Sarah Sharp
d13565c128 xhci: Fix memory leak during failed enqueue.
When the isochronous transfer support was introduced, and the xHCI driver
switched to using urb->hcpriv to store an "urb_priv" pointer, a couple of
memory leaks were introduced into the URB enqueue function in its error
handling paths.

xhci_urb_enqueue allocates urb_priv, but it doesn't free it if changing
the control endpoint's max packet size fails or the bulk endpoint is in
the middle of allocating or deallocating streams.

xhci_urb_enqueue also doesn't free urb_priv if any of the four endpoint
types' enqueue functions fail.  Instead, it expects those functions to
free urb_priv if an error occurs.  However, the bulk, control, and
interrupt enqueue functions do not free urb_priv if the endpoint ring is
NULL.  It will, however, get freed if prepare_transfer() fails in those
enqueue functions.

Several of the error paths in the isochronous endpoint enqueue function
also fail to free it.  xhci_queue_isoc_tx_prepare() doesn't free urb_priv
if prepare_ring() indicates there is not enough room for all the
isochronous TDs in this URB.  If individual isochronous TDs fail to be
queued (perhaps due to an endpoint state change), urb_priv is also leaked.

This argues that the freeing of urb_priv should be done in the function
that allocated it, xhci_urb_enqueue.

This patch looks rather ugly, but refactoring the code will have to wait
because this patch needs to be backported to stable kernels.

This patch should be backported to kernels as old as 2.6.36.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Andiry Xu <andiry.xu@amd.com>
Cc: stable@kernel.org
2011-08-09 14:48:45 -07:00
Andiry Xu
8a8ff2f939 xHCI: report USB2 port in resuming as suspend
When a USB2 port initiate a remote wakeup, software shall ensure that
resume is signaled for at least 20ms, and then write '0' to the PLS field.
According to this, xhci driver do the following things:

1. When receive a remote wakeup event in irq_handler, set the resume_done
   value as jiffies + 20ms, and modify rh_timer to poll root hub status at
   that time;
2. When receive a GetPortStatus request, if the jiffies is after the
   resume_done value, clear the resume signal and resume_done.

However, if usb_port_resume() is called before the rh_timer triggered, it
will indicate the port as Suspend Cleared and skip the clear resume signal
part. The device will fail the usb_get_status request in finish_port_resume(),
and usbcore will try a reset-resume instead. Device will work OK after
reset-resume, but resume_done value is not cleared in this case, and
xhci_bus_suspend() will fail because when it finds a non-zero resume_done
value, it will regard the port as resuming and return -EBUSY.

This causes issue on some platforms that the system fail to suspend
after remote wakeup from suspend by USB2 devices connected to xHCI port.

To fix this issue, report the port status as suspend if the resume is
signaling less that 20ms, and usb_port_resume() will wait 25ms and check
port status again, so xHCI driver can clear the resume signaling and
resume_done value.

This should be backported to kernels as old as 2.6.37.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
2011-08-09 14:44:50 -07:00
Andiry Xu
5ac04bf190 xHCI: fix port U3 status check condition
Fix the port U3 status check when Clear PORT_SUSPEND Feature.
The port status should be masked with PORT_PLS_MASK to check if it's in
U3 state.

This should be backported to kernels as old as 2.6.37.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
2011-08-09 14:43:22 -07:00
Tony Luck
88ff987758 [IA64] fix "allnoconfig" build
Link errors:
arch/ia64/kernel/built-in.o: In function `arch_setup_dmar_msi':
(.text+0x35972): undefined reference to `dmar_msi_write'
... and more ...

because allnoconfig has CONFIG_DMAR=y due to the "select DMAR"
in arch/ia64/Kconfig under config IA64_GENERIC.

Drop that select, but add CONFIG_DMAR=y to generic_defconfig so
we keep testbuilding the DMAR code.

Signed-off-by: Tony Luck <tony.luck@intel.com>
2011-08-09 12:36:00 -07:00
Jens Axboe
40bb96ade4 Merge branch 'stable/for-jens' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus 2011-08-09 20:43:26 +02:00
Jeff Moyer
fa1bf42ff9 allow blk_flush_policy to return REQ_FSEQ_DATA independent of *FLUSH
blk_insert_flush has the following check:

	/*
	 * If there's data but flush is not necessary, the request can be
	 * processed directly without going through flush machinery.  Queue
	 * for normal execution.
	 */
	if ((policy & REQ_FSEQ_DATA) &&
	    !(policy & (REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH))) {
		list_add_tail(&rq->queuelist, &q->queue_head);
		return;
	}

However, blk_flush_policy will not return with policy set to only
REQ_FSEQ_DATA:

static unsigned int blk_flush_policy(unsigned int fflags, struct request *rq)
{
	unsigned int policy = 0;

	if (fflags & REQ_FLUSH) {
		if (rq->cmd_flags & REQ_FLUSH)
			policy |= REQ_FSEQ_PREFLUSH;
		if (blk_rq_sectors(rq))
			policy |= REQ_FSEQ_DATA;
		if (!(fflags & REQ_FUA) && (rq->cmd_flags & REQ_FUA))
			policy |= REQ_FSEQ_POSTFLUSH;
	}
	return policy;
}

Notice that REQ_FSEQ_DATA is only set if REQ_FLUSH is set.  Fix this
mismatch by moving the setting of REQ_FSEQ_DATA outside of the REQ_FLUSH
check.

Tejun notes:

  Hmmm... yes, this can become a correctness issue if (and only if)
  blk_queue_flush() is called to change q->flush_flags while requests
  are in-flight; otherwise, requests wouldn't reach the function at all.
  Also, I think it would be a generally good idea to always set
  FSEQ_DATA if the request has data.

Cheers,
Jeff

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-09 20:32:09 +02:00
Jesse Barnes
13d83a672e drm/i915: split out PCH refclk update code
We ought to be calling this from our DPMS routines as well as global
state may change and we need to enable/disable clocks.  So split out the
code in preparation for further changes.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-08-09 10:26:24 -07:00
Jesse Barnes
da64c6fc4a drm/i915: show interrupt info on IVB
IVB uses the same interrupt reg layout as SNB, so add an IS_GEN7 to the
interrupt debugfs file.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-08-09 09:47:16 -07:00
Konrad Rzeszutek Wilk
ea5e116162 xen/blkback: Make description more obvious.
With the frontend having Xen but the backend not, it just looks odd:

  <*>   Xen virtual block device support
  <*>   Block-device backend driver

Fix it to have the 'Xen' in front of it.

Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-08-09 11:12:14 -04:00
Peter Zijlstra
80e0401e35 lockdep: Fix wrong assumption in match_held_lock
match_held_lock() was assuming it was being called on a lock class
that had already seen usage.

This condition was true for bug-free code using lockdep_assert_held(),
since you're in fact holding the lock when calling it. However the
assumption fails the moment you assume the assertion can fail, which
is the whole point of having the assertion in the first place.

Anyway, now that there's more lockdep_is_held() users, notably
__rcu_dereference_check(), its much easier to trigger this since we
test for a number of locks and we only need to hold any one of them to
be good.

Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1312547787.28695.2.camel@twins
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-08-09 11:57:35 +02:00
Joshua V. Dillon
db0b34b074 Input: bcm5974 - add support for touchpads found in MacBookAir4,2
Added USB device IDs for MacBookAir4,2 trackpad. Device constants were
copied from the MacBookAir3,2 constants. The 4,2 device specification is
reportedly unchanged from the 3,2 predecessor and seems to work well.

Signed-off-by: Joshua V Dillon <jvdillon@gmail.com>
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-08 23:55:03 -07:00
Axel Lin
cd566c64f5 Input: mma8450 - fix module device table type
The module device table for of_device_id should use "of" type.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-08 23:54:57 -07:00
Kukjin Kim
b882fc1b03 serial: samsung: Fix build error
drivers/tty/serial/samsung.c: In function 's3c24xx_serial_init':
drivers/tty/serial/samsung.c:1237: error: lvalue required as unary '&' operand

Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-08 13:54:50 -07:00
Arnaud Lacombe
f9e0b159db drivers/base/devtmpfs.c: correct annotation of `setup_done'
This fixes the following section mismatch issue:

WARNING: vmlinux.o(.text+0x1192bf): Section mismatch in reference from the function devtmpfsd() to the variable .init.data:setup_done
The function devtmpfsd() references the variable __initdata setup_done.
This is often because devtmpfsd lacks a __initdata annotation or the annotation of setup_done is wrong.

WARNING: vmlinux.o(.text+0x119342): Section mismatch in reference from the function devtmpfsd() to the variable .init.data:setup_done
The function devtmpfsd() references the variable __initdata setup_done.
This is often because devtmpfsd lacks a __initdata annotation or the annotation of setup_done is wrong.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-08 13:53:50 -07:00
Randy Dunlap
7de636fa25 driver core: fix kernel-doc warning in platform.c
Warning(drivers/base/platform.c:50): No description found for parameter 'pdev'
Warning(drivers/base/platform.c:50): Excess function parameter 'dev' description in 'arch_setup_pdev_archdata'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-08 13:53:49 -07:00
Randy Dunlap
a88769cde2 firmware: fix google/gsmi.c build warning
Modify function parameter type to match expected type.  Fixes a
build warning:

drivers/firmware/google/gsmi.c:473: warning: initialization from incompatible pointer type

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Mike Waychison <mikew@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-08 13:53:49 -07:00
Keith Packard
4e6343898f drm/i915: Remove unused 'reg' argument to dp_pipe_enabled
Just an extra parameter which isn't actually needed.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-08 13:37:11 -07:00
Keith Packard
1519b9956e drm/i915: Fix PCH port pipe select in CPT disable paths
CPT pipe select is different from previous generations (using two bits
instead of one). All of the paths from intel_disable_pch_ports were
not making this distinction.

Mode setting with pipe A turned off would then also force all outputs
on pipe B to get turned off as the disable code would mistakenly
decide that all of these outputs were on pipe A and turn them off.

This is an extension of the CPT DP disable fix (why didn't I fix this then?)

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-08 13:37:11 -07:00
Keith Packard
ed10fca9c3 drm/i915: Leave LVDS registers unlocked
There's no reason to relock them; it just makes operations more
complex. This fixes DPMS where the panel registers were locked making
the disable not work.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-08 13:37:11 -07:00
Keith Packard
de842eff41 drm/i915: Wait for LVDS panel power sequence
During mode setting, check to make sure the panel power sequencing has
completed before doing further operations on the device. This
uncovered errors with DPMS not turning the device off as it was left locked.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-08 13:37:11 -07:00
Johannes Weiner
478e0841b3 fuse: mark pages accessed when written to
As fuse does not use the page cache library functions when userspace
writes to a file, it did not benefit from 'c8236db mm: mark page
accessed before we write_end()' that made sure pages are properly
marked accessed when written to.

Signed-off-by: Johannes Weiner <jweiner@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2011-08-08 16:08:08 +02:00
Johannes Weiner
b40cdd56df fuse: delete dead .write_begin and .write_end aops
Ever since 'ea9b990 fuse: implement perform_write', the .write_begin
and .write_end aops have been dead code.

Their task - acquiring a page from the page cache, sending out a write
request and releasing the page again - is now done batch-wise to
maximize the number of pages send per userspace request.

Signed-off-by: Johannes Weiner <jweiner@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2011-08-08 16:08:08 +02:00
Miklos Szeredi
37fb3a30b4 fuse: fix flock
Commit a9ff4f87 "fuse: support BSD locking semantics" overlooked a
number of issues with supporing flock locks over existing POSIX
locking infrastructure:

  - it's not backward compatible, passing flock(2) calls to userspace
    unconditionally (if userspace sets FUSE_POSIX_LOCKS)

  - it doesn't cater for the fact that flock locks are automatically
    unlocked on file release

  - it doesn't take into account the fact that flock exclusive locks
    (write locks) don't need an fd opened for write.

The last one invalidates the original premise of the patch that flock
locks can be emulated with POSIX locks.

This patch fixes the first two issues.  The last one needs to be fixed
in userspace if the filesystem assumed that a write lock will happen
only on a file operned for write (as in the case of the current fuse
library).

Reported-by: Sebastian Pipping <webmaster@hartwork.org>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2011-08-08 16:08:08 +02:00
Kuninori Morimoto
fe43756143 ARM: mach-shmobile: mackerel: Add USB-DMA ID
This patch use channel0 as Tx, and channel1 as Rx

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-08 16:41:44 +09:00
Paul Mundt
4791d63bd4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into rmobile-latest 2011-08-08 16:41:23 +09:00
Simon Horman
b3623080ff mmc: sdhi, mmcif: zboot: Correct clock disable logic
This corrects a logic-error that I made in the original implementation.

An alternate patch would be to just remove these lines and
leave the clock running as it is reconfigured later on during
boot anyway.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-08 16:38:04 +09:00
Paul Mundt
e80ca144ea Merge branch 'common/core' into sh-latest 2011-08-08 16:33:54 +09:00
Paul Mundt
c66d3fcbf3 sh: Fix up fallout from cpuidle changes.
Fixes up the pm_idle redefinition that was introduced with the earlier
cpuidle changes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-08 16:30:11 +09:00
Paul Mundt
77c7ee51a0 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-latest
Conflicts:
	drivers/tty/serial/sh-sci.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-08 13:45:28 +09:00
Jack Steiner
05e33fc20e x86, UV: Remove UV delay in starting slave cpus
Delete the 10 msec delay between the INIT and SIPI when starting
slave cpus. I can find no requirement for this delay. BIOS also
has similar code sequences without the delay.

Removing the delay reduces boot time by 40 sec. Every bit helps.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/20110805140900.GA6774@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-08-05 23:48:34 +02:00
Paul Fox
a3ea14df0e x86, olpc: Wait for last byte of EC command to be accepted
When executing EC commands, only waiting when there are still
more bytes to write is usually fine. However, if the system
suspends very quickly after a call to olpc_ec_cmd(), the last
data byte may not yet be transferred to the EC, and the command
will not complete.

This solves a bug where the SCI wakeup mask was not correctly
written when going into suspend.

It means that sometimes, on XO-1.5 (but not XO-1), the
devices that were marked as wakeup sources can't wake up
the system. e.g. you ask for wifi wakeups, suspend, but then
incoming wifi frames don't wake up the system as they should.

Signed-off-by: Paul Fox <pgf@laptop.org>
Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Andres Salomon <dilinger@queued.net>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-08-05 23:47:55 +02:00
Chris Mason
2ab1ba68ae Btrfs: force unplugs when switching from high to regular priority bios
Btrfs does bio submissions from a worker thread, and each device
has a list of high priority bios and regular priority bios.

Synchronous writes go to the high priority thread while async writes
go to regular list.  This commit brings back an explicit unplug
any time we switch from high to regular priority, which makes it
easier for the block layer to give us low latencies.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-05 13:48:18 -04:00
Vivek Goyal
4931402a9d cfq-iosched: Add documentation about idling
There are always questions about why CFQ is idling on various conditions.
Recent ones is Christoph asking again why to idle on REQ_NOIDLE. His
assertion is that XFS is relying more and more on workqueues and is
concerned that CFQ idling on IO from every workqueue will impact
XFS badly.

So he suggested that I add some more documentation about CFQ idling
and that can provide more clarity on the topic and also gives an
opprotunity to poke a hole in theory and lead to improvements.

So here is my attempt at that. Any comments are welcome.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-05 09:42:20 +02:00
Tao Ma
35ae66e0a0 block: Make rq_affinity = 1 work as expected
Commit 5757a6d76c introduced a new rq_affinity = 2 so as to make
the request completed in the __make_request cpu. But it makes the
old rq_affinity = 1 not work any more. The root cause is that
if the 'cpu' and 'req->cpu' is in the same group and cpu != req->cpu,
ccpu will be the same as group_cpu, so the completion will be
excuted in the 'cpu' not 'group_cpu'.

This patch fix problem by simpling removing group_cpu and the codes
are more explicit now. If ccpu == cpu, we complete in cpu, otherwise
we raise_blk_irq to ccpu.

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Roland Dreier <roland@purestorage.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Reviewed-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-05 09:37:47 +02:00
Deepak Saxena
18b08c55a9 Input: remove CLOCK_TICK_RATE from analog joystick driver
The analog joystick driver is written for x86 systems. This
patch updates it to use the PIT_TICK_RATE value instead of
CLOCK_TICK_RATE as they are equivalent on x86 and we want to
deprecate the latter.

Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-04 23:41:36 -07:00
Trond Myklebust
910ac68a2b NFSv4.1: Return NFS4ERR_BADSESSION to callbacks during session resets
If the client is in the process of resetting the session when it receives
a callback, then returning NFS4ERR_DELAY may cause a deadlock with the
DESTROY_SESSION call.

Basically, if the client returns NFS4ERR_DELAY in response to the
CB_SEQUENCE call, then the server is entitled to believe that the
client is busy because it is already processing that call. In that
case, the server is perfectly entitled to respond with a
NFS4ERR_BACK_CHAN_BUSY to any DESTROY_SESSION call.

Fix this by having the client reply with a NFS4ERR_BADSESSION in
response to the callback if it is resetting the session.

Cc: stable@kernel.org [2.6.38+]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-08-04 11:55:35 -04:00
Trond Myklebust
55a673990e NFSv4.1: Fix the callback 'highest_used_slotid' behaviour
Currently, there is no guarantee that we will call nfs4_cb_take_slot() even
though nfs4_callback_compound() will consistently call
nfs4_cb_free_slot() provided the cb_process_state has set the 'clp' field.
The result is that we can trigger the BUG_ON() upon the next call to
nfs4_cb_take_slot().

This patch fixes the above problem by using the slot id that was taken in
the CB_SEQUENCE operation as a flag for whether or not we need to call
nfs4_cb_free_slot().
It also fixes an atomicity problem: we need to set tbl->highest_used_slotid
atomically with the check for NFS4_SESSION_DRAINING, otherwise we end up
racing with the various tests in nfs4_begin_drain_session().

Cc: stable@kernel.org [2.6.38+]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-08-04 11:55:35 -04:00
Boaz Harrosh
9af7db3228 pnfs-obj: Fix the comp_index != 0 case
There were bugs in the case of partial layout where olo_comp_index
is not zero. This used to work and was tested but one of the later
cleanup SQUASHMEs broke it and was not tested since.

Also add a dprint that specify those received layout parameters.
Everything else was already printed.

[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-08-04 11:54:48 -04:00
Boaz Harrosh
20618b21da pnfs-obj: Bug when we are running out of bio
When we have a situation that the number of pages we want
to encode is bigger then the size of the bio. (Which can
currently happen only when all IO is going to a single device
.e.g group_width==1) then the IO is submitted short and we
report back only the amount of bytes we actually wrote/read
and all is fine. BUT ...

There was a bug that the current length counter was advanced
before the fail to add the extra page, and we come to a situation
that the CDB length was one-page longer then the actual bio size,
which is of course rejected by the osd-target.

While here also fix the bio size calculation, in the case
that we received more then one group of devices.

CC: Stable Tree <stable@kernel.org>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-08-04 11:54:38 -04:00
Heiko Carstens
88c9e42196 nfs: add missing prefetch.h include
Fix this compile error on s390:

  CC [M]  fs/nfs/blocklayout/blocklayout.o
fs/nfs/blocklayout/blocklayout.c: In function 'bl_end_io_read':
fs/nfs/blocklayout/blocklayout.c:201:4: error: implicit declaration of function 'prefetchw'

Introduced with 9549ec01 "pnfsblock: bl_read_pagelist".

Cc: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-08-04 11:54:25 -04:00
Randy Dunlap
52884b2be5 Merge branch 'docs/msi-3' of git://github.com/mfwitten/linux-2.6 into docs-move 2011-08-03 14:37:30 -07:00
Axel Lin
f41c53a569 block: swim3: fix unterminated of_device_id table
of_device_id structures need a NULL terminating entry, add it.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-03 15:02:55 +02:00
Magnus Damm
1ba7622094 serial: sh-sci: console Runtime PM support
Add Runtime PM context save/restore support to
the SCIF driver. Tested on the AP4EVB console.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-03 15:07:44 +09:00
Paul Gortmaker
c84b51e65e sh: Fix conflicting definitions of ptrace_triggered
The extra nmi argument is causing this compile fail:

  CC      arch/sh/kernel/ptrace_32.o
arch/sh/kernel/ptrace_32.c:66:6: error: conflicting types for 'ptrace_triggered'
arch/sh/include/asm/ptrace.h:126:13: note: previous declaration of 'ptrace_triggered' was here
make[3]: *** [arch/sh/kernel/ptrace_32.o] Error 1

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-03 12:37:22 +09:00
Magnus Damm
5beabc7fcd serial: sh-sci: fix DMA build by including dma-mapping.h
Include dma-mapping.h to fix build of the sh-sci driver on
SH-Mobile ARM (sh73a0) when CONFIG_SERIAL_SH_SCI_DMA=y:

drivers/tty/serial/sh-sci.c: In function 'sci_rx_dma_release':
drivers/tty/serial/sh-sci.c:1182:3: error: implicit declaration of function 'dma_free_coherent'
drivers/tty/serial/sh-sci.c: In function 'work_fn_tx':
drivers/tty/serial/sh-sci.c:1333:2: error: implicit declaration of function 'dma_sync_sg_for_device'
drivers/tty/serial/sh-sci.c: In function 'sci_request_dma':
drivers/tty/serial/sh-sci.c:1498:3: error: implicit declaration of function 'dma_map_sg'
drivers/tty/serial/sh-sci.c:1527:3: error: implicit declaration of function 'dma_alloc_coherent'
drivers/tty/serial/sh-sci.c:1527:10: warning: assignment makes pointer from integer without a cast
make[3]: *** [drivers/tty/serial/sh-sci.o] Error 1
make[2]: *** [drivers/tty/serial] Error 2
make[1]: *** [drivers/tty] Error 2
make: *** [drivers] Error 2

Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-03 12:37:12 +09:00
Paul Mundt
ad75b88ac3 serial: sh-sci: Fix up default regtype probing.
Presently the default regtype probing inadvertently bails out due to an
inverted error check. This fixes it up, and gets platforms without
explicit regtype specifications working again.

Reported-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-03 12:33:20 +09:00
Michael Witten
798c794df8 Docs: MSI-HOWTO: MSI -> MSIs
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:41 +00:00
Michael Witten
c2b65e181a Docs: MSI-HOWTO: Insert a comma
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:40 +00:00
Michael Witten
1b8386f612 Docs: MSI-HOWTO: can -> could
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:39 +00:00
Michael Witten
e6b85a1f8a Docs: MSI-HOWTO: Use unknown ...' rather than ... know about.'
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:39 +00:00
Michael Witten
952df55b5a Docs: MSI-HOWTO: may -> might
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:37 +00:00
Michael Witten
e14bd7e614 Docs: MSI-HOWTO: Insert a comma
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:37 +00:00
Michael Witten
e6ffceb0de Docs: MSI-HOWTO: API -> function
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:36 +00:00
Michael Witten
5a84fc3162 Docs: MSI-HOWTO: , -> ;
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:36 +00:00
Michael Witten
6457d9b350 Docs: MSI-HOWTO: Move a sentence to another paragraph
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:35 +00:00
Michael Witten
ed737c1882 Docs: MSI-HOWTO: Insert `that'
... as per Randy Dunlap's wishes :-P
Message-Id: <20110717114023.2b4cce91.rdunlap@xenotime.net>

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:34 +00:00
Michael Witten
e4439236ef Docs: MSI-HOWTO: Offset modifier with a comma, and insert `yet' for emphasis
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:33 +00:00
Michael Witten
263d8d57b3 Docs: MSI-HOWTO: Put the `because' subordinate clause first
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:32 +00:00
Michael Witten
1d15afcc73 Docs: MSI-HOWTO: Streamline some wording
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:32 +00:00
Michael Witten
a2d4d50128 Docs: MSI-HOWTO: asked for' -> requested'
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:31 +00:00
Michael Witten
4979de6efb Docs: MSI-HOWTO: Use present tense and streamline some wording
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:31 +00:00
Michael Witten
891f692533 Docs: MSI-HOWTO: Use the subjunctive, and change can' to may'
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
2011-08-02 21:34:30 +00:00
Jon Mason
debc3b7785 PCI: export pcie_bus_configure_settings symbol
pcie_bus_configure_settings needs to be exported if the PCI hotplug
driver is being compiled as a module.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jon Mason <mason@myri.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-02 08:53:00 -07:00
Herbert Poetzl
f95fe9cfb4 block/genhd.c: remove useless cast in diskstats_show()
Remove the (unsigned long long) cast in diskstats_show() and adjusts the
seq_printf() format string to 'unsigned long'

diskstats_show() uses part_stat_read() to get the stats, which either
accesses the specified field in the struct disk_stats directly (non SMP)
or sums up the per CPU values in a variable of the same type as the field,
so in any case the result will have the same type and range as the
specified field which for all disk_stats entries is unsigned long

Also, for unsigned long ranges the output of %lu should be identical to
the one of %llu, so no change in the actual proc entry contents.

Signed-off-by: Herbert Poetzl <herbert@13thfloor.at>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-02 12:43:50 +02:00
Andrew Morton
aec9f377e4 drivers/cdrom/cdrom.c: relax check on dvd manufacturer value
The report has an ISO which has a very long manufacturer ID.  It seems
that Linux is wrong, not the ISO maker.

Relax the check for the length of this field: emit a warning and truncate
the incoming data to 2048 bytes rather than rejecting the entire thing.

dvd_manufact.value isn't null-terminated.  I'm not even sure if it's a
string.  The kernel doesn't apepar to use it anyway.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=39062

Reported-by: <ale.goujon@gmail.com>
Tested-by: <ale.goujon@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-02 12:43:50 +02:00
H Hartley Sweeten
ddad9ef582 drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse
The buffer 'sc.cpu_mask' is a kernel buffer.  If bitmap_parse is used
instead of __bitmap_parse the extra parameter that indicates a kernel
buffer is not needed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lars Ellenberg <drbd-dev@lists.linbit.com>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-02 12:43:49 +02:00
Jens Axboe
e2a5429ff7 bsg-lib: add module.h include
Due to conflicts with the moduleh tree in linux-next, we
run into an include file mess. We really need export.h
in that tree, but if we add module.h locally then the
issue is easier to resolve.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-02 10:43:35 +02:00
Vivek Goyal
a5395b83b7 cfq-iosched: Reduce linked group count upon group destruction
FQ keeps track of number of groups which are linked on blkcg->blkg_list.
This is useful to avoid races between queue exit and cgroup exit code
paths. So if at the request queue exit time linked group count is not
zero, that means there are some group out there which is yet to be
deleted under rcu read period and queue exit code should wait for
on rcu period.

In my previous patch I forgot to decrease the number of group count.
So in current form, we nr_blkcg_linked_grps is always non-zero and
we will always wait one rcu period (if BLK_CGROUP=y). The side effect
of this is that it can increase boot time. I am surprised, nobody
complained so far.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-02 09:24:09 +02:00
Dan Bastone
4a4c879904 HID: add support for new revision of Apple aluminum keyboard
Add USB device ids for the new revision (MB110LL/B) of Apple's wired aluminum
keyboard.  I have only confirmed that the ANSI version is correct - it is
assumed that the ISO and JIS versions follow the standard numbering convention.

Signed-off-by: Dan Bastone <dan@pwienterprises.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-01 23:18:26 +02:00
Ram Pai
9e8bf93a7f PCI: code and comments cleanup
a) adjust_resource_sorted() is now called reassign_resource_sorted()
b) nice-to-have is now called optional
c) add_list is now called realloc_list.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-01 11:50:50 -07:00
Ram Pai
0a2daa1cf3 PCI: make cardbus-bridge resources optional
Allocate resources to cardbus bridge only after all other genuine
resources requests are satisfied. Dont retry if resource allocation
for cardbus-bridges fail.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-01 11:50:40 -07:00
Yinghai Lu
2aceefcbd5 PCI: make SRIOV resources optional
From: Yinghai Lu <yinghai@kernel.org>

Allocate resources to SRIOV BARs only after all other required
resource-requests are satisfied. Dont retry if resource allocation for SRIOV
BARs fail.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-01 11:50:31 -07:00
Ram Pai
2bbc694227 PCI : ability to relocate assigned pci-resources
Currently pci-bridges are allocated enough resources to satisfy their immediate
requirements.  Any additional resource-requests fail if additional free space,
contiguous to the one already allocated, is not available. This behavior is not
reasonable since sufficient contiguous resources, that can satisfy the request,
are available at a different location.

This patch provides the ability to expand and relocate a allocated resource.

	v2: Changelog: Fixed size calculation in pci_reassign_resource()
	v3: Changelog : Split this patch. The resource.c changes are already
			upstream. All the pci driver changes are in here.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-01 11:50:15 -07:00
Yinghai Lu
be768912a4 PCI: honor child buses add_size in hot plug configuration
git commit c8adf9a3e8
    "PCI: pre-allocate additional resources to devices only after
	successful allocation of essential resources."

fails to take into consideration the optional-resources needed by children
devices while calculating the optional-resource needed by the bridge.

This can be a problem on some setup. For example, if a hotplug bridge has 8
children hotplug bridges, the bridge should have enough resources to accomodate
the hotplug requirements for each of its children hotplug bridges.  Currently
this is not the case.

This patch fixes the problem.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-01 11:49:39 -07:00
Jon Mason
b03e7495a8 PCI: Set PCI-E Max Payload Size on fabric
On a given PCI-E fabric, each device, bridge, and root port can have a
different PCI-E maximum payload size.  There is a sizable performance
boost for having the largest possible maximum payload size on each PCI-E
device.  However, if improperly configured, fatal bus errors can occur.
Thus, it is important to ensure that PCI-E payloads sends by a device
are never larger than the MPS setting of all devices on the way to the
destination.

This can be achieved two ways:

- A conservative approach is to use the smallest common denominator of
  the entire tree below a root complex for every device on that fabric.

This means for example that having a 128 bytes MPS USB controller on one
leg of a switch will dramatically reduce performances of a video card or
10GE adapter on another leg of that same switch.

It also means that any hierarchy supporting hotplug slots (including
expresscard or thunderbolt I suppose, dbl check that) will have to be
entirely clamped to 128 bytes since we cannot predict what will be
plugged into those slots, and we cannot change the MPS on a "live"
system.

- A more optimal way is possible, if it falls within a couple of
  constraints:
* The top-level host bridge will never generate packets larger than the
  smallest TLP (or if it can be controlled independently from its MPS at
  least)
* The device will never generate packets larger than MPS (which can be
  configured via MRRS)
* No support of direct PCI-E <-> PCI-E transfers between devices without
  some additional code to specifically deal with that case

Then we can use an approach that basically ignores downstream requests
and focuses exclusively on upstream requests. In that case, all we need
to care about is that a device MPS is no larger than its parent MPS,
which allows us to keep all switches/bridges to the max MPS supported by
their parent and eventually the PHB.

In this case, your USB controller would no longer "starve" your 10GE
Ethernet and your hotplug slots won't affect your global MPS.
Additionally, the hotplugged devices themselves can be configured to a
larger MPS up to the value configured in the hotplug bridge.

To choose between the two available options, two PCI kernel boot args
have been added to the PCI calls.  "pcie_bus_safe" will provide the
former behavior, while "pcie_bus_perf" will perform the latter behavior.
By default, the latter behavior is used.

NOTE: due to the location of the enablement, each arch will need to add
calls to this function.  This patch only enables x86.

This patch includes a number of changes recommended by Benjamin
Herrenschmidt.

Tested-by: Jordan_Hargrave@dell.com
Signed-off-by: Jon Mason <mason@myri.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-01 11:49:16 -07:00
Dave Kleikamp
1c8007b076 jfs: flush journal completely before releasing metadata inodes
This fixes a race during unmount. We need to not only make sure that
the journal is completely written, but that the metadata changes make
it to disk before releasing ipimap and ipbmap.

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
2011-08-01 12:41:00 -05:00
Shaohua Li
e5a94f5684 blk-throttle: correctly determine sync bio
read request is always sync. Using rw_is_sync() to determine
if a bio is sync.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-01 10:31:06 +02:00
Kay Sievers
05eb0f252b loop: fix deadlock when sysfs and LOOP_CLR_FD race against each other
LOOP_CLR_FD takes lo->lo_ctl_mutex and tries to remove the loop sysfs
files. Sysfs calls show() and waits for lo->lo_ctl_mutex. LOOP_CLR_FD
waits for show() to finish to remove the sysfs file.

  cat /sys/class/block/loop0/loop/backing_file
    mutex_lock_nested+0x176/0x350
    ? loop_attr_do_show_backing_file+0x2f/0xd0 [loop]
    ? loop_attr_do_show_backing_file+0x2f/0xd0 [loop]
    loop_attr_do_show_backing_file+0x2f/0xd0 [loop]
    dev_attr_show+0x1b/0x60
    ? sysfs_read_file+0x86/0x1a0
    ? __get_free_pages+0x12/0x50
    sysfs_read_file+0xaf/0x1a0

  ioctl(LOOP_CLR_FD):
    wait_for_common+0x12c/0x180
    ? try_to_wake_up+0x2a0/0x2a0
    wait_for_completion+0x18/0x20
    sysfs_deactivate+0x178/0x180
    ? sysfs_addrm_finish+0x43/0x70
    ? sysfs_addrm_start+0x1d/0x20
    sysfs_addrm_finish+0x43/0x70
    sysfs_hash_and_remove+0x85/0xa0
    sysfs_remove_group+0x59/0x100
    loop_clr_fd+0x1dc/0x3f0 [loop]
    lo_ioctl+0x223/0x7a0 [loop]

Instead of taking the lo_ctl_mutex from sysfs code, take the inner
lo->lo_lock, to protect the access to the backing_file data.

Thanks to Tejun for help debugging and finding a solution.

Cc: Milan Broz <mbroz@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-07-31 22:21:35 +02:00
Kay Sievers
d134b00b9a loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices
Instead of unconditionally creating a fixed number of dead loop
devices which need to be investigated by storage handling services,
even when they are never used, we allow distros start with 0
loop devices and have losetup(8) and similar switch to the dynamic
/dev/loop-control interface instead of searching /dev/loop%i for free
devices.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-07-31 22:08:04 +02:00
Kay Sievers
770fe30a46 loop: add management interface for on-demand device allocation
Loop devices today have a fixed pre-allocated number of usually 8.
The number can only be changed at module init time. To find a free
device to use, /dev/loop%i needs to be scanned, and all devices need
to be opened until a free one is possibly found.

This adds a new /dev/loop-control device node, that allows to
dynamically find or allocate a free device, and to add and remove loop
devices from the running system:
 LOOP_CTL_ADD adds a specific device. Arg is the number
 of the device. It returns the device i or a negative
 error code.

 LOOP_CTL_REMOVE removes a specific device, Arg is the
 number the device. It returns the device i or a negative
 error code.

 LOOP_CTL_GET_FREE finds the next unbound device or allocates
 a new one. No arg is given. It returns the device i or a
 negative error code.

The loop kernel module gets automatically loaded when
/dev/loop-control is accessed the first time. The alias
specified in the module, instructs udev to create this
'dead' device node, even when the module is not loaded.

Example:
 cfd = open("/dev/loop-control", O_RDWR);

 # add a new specific loop device
 err = ioctl(cfd, LOOP_CTL_ADD, devnr);

 # remove a specific loop device
 err = ioctl(cfd, LOOP_CTL_REMOVE, devnr);

 # find or allocate a free loop device to use
 devnr = ioctl(cfd, LOOP_CTL_GET_FREE);

 sprintf(loopname, "/dev/loop%i", devnr);
 ffd = open("backing-file", O_RDWR);
 lfd = open(loopname, O_RDWR);
 err = ioctl(lfd, LOOP_SET_FD, ffd);

Cc: Tejun Heo <tj@kernel.org>
Cc: Karel Zak  <kzak@redhat.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-07-31 22:08:04 +02:00
Kay Sievers
34dd82afd2 loop: replace linked list of allocated devices with an idr index
Replace the linked list, that keeps track of allocated devices, with an
idr index to allow a more efficient lookup of devices.

Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-07-31 22:08:04 +02:00
Mike Christie
aa387cc895 block: add bsg helper library
This moves the FC classes bsg code to the block layer and
makes it a lib so that other classes like iscsi and SAS can use it.

It is helpful because working with the request queue, bios,
creating scatterlists, etc are a pain that the LLD does not
have to worry about with normal IOs and should not have to
worry about for bsg requests.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-07-31 22:05:09 +02:00
Sebastian Andrzej Siewior
b6873807a7 irq: Track the owner of irq descriptor
Interrupt descriptors can be allocated from modules. The interrupts
are used by other modules, but we have no refcount on the module which
provides the interrupts and there is no way to establish one on the
device level as the interrupt using module is agnostic to the fact
that the interrupt is provided by a module rather than by some builtin
interrupt controller.

To prevent removal of the interrupt providing module, we can track the
owner of the interrupt descriptor, which also provides the relevant
irq chip functions in the irq descriptor.

request/setup_irq() can now acquire a refcount on the owner module to
prevent unloading. free_irq() drops the refcount.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Link: http://lkml.kernel.org/r/20110711101731.GA13804@Chamillionaire.breakpoint.cc
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-07-28 11:23:21 +02:00
Sebastian Andrzej Siewior
f3637a5f2e irq: Always set IRQF_ONESHOT if no primary handler is specified
If no primary handler is specified then a default one is assigned
which always returns IRQ_WAKE_THREAD. This handler requires the
IRQF_ONESHOT flag on LEVEL / EIO typed irqs because the source of
interrupt is not disabled. Since it is required for those users and
there is no difference for others it makes sense to add this flag
unconditionally.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: http://lkml.kernel.org/r/1310070737-18514-1-git-send-email-bigeasy@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-07-28 11:23:21 +02:00
Randy Dunlap
fd079facb3 KVM: fix TASK_DELAY_ACCT kconfig warning
Fix kconfig dependency warning:

warning: (KVM) selects TASK_DELAY_ACCT which has unmet direct dependencies (TASKSTATS)

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-27 14:22:06 +03:00
Thomas Gleixner
6e7a333eaa rtc: Limit RTC PIE frequency
The RTC pie hrtimer is self rearming. We really need to limit the
frequency to something sensible. Thus limit it to the 8192Hz max
value from the rtc man documentation

Cc: Willy Tarreau <w@1wt.eu>
Cc: stable@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[jstultz: slightly reworked to use RTC_MAX_FREQ value]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-07-26 14:50:01 -07:00
Thomas Gleixner
3c8bb90efb rtc: Fix hrtimer deadlock
Ben reported a lockup related to rtc. The lockup happens due to:

CPU0                                        CPU1

rtc_irq_set_state()			    __run_hrtimer()
  spin_lock_irqsave(&rtc->irq_task_lock)    rtc_handle_legacy_irq();
					      spin_lock(&rtc->irq_task_lock);
  hrtimer_cancel()
    while (callback_running);

So the running callback never finishes as it's blocked on
rtc->irq_task_lock.

Use hrtimer_try_to_cancel() instead and drop rtc->irq_task_lock while
waiting for the callback. Fix this for both rtc_irq_set_state() and
rtc_irq_set_freq().

Cc: stable@kernel.org
Reported-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-07-26 14:49:59 -07:00
Thomas Gleixner
53cc2820ac rtc: Handle errors correctly in rtc_irq_set_state()
In rtc_irq_set_state, the code checks the correctness of the parameters,
but then goes on to unconditionally arms/disarms the hrtimer. Thus a
random task might arm/disarm rtc timer and surprise the real owner by
either generating events or by stopping them.

Cc: stable@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-07-26 14:49:57 -07:00
jhbird.choi@samsung.com
1dd75f91ae genirq: Fix wrong bit operation
(!msk & 0x01) should be !(msk & 0x01)

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Link: http://lkml.kernel.org/r/1311229754-6003-1-git-send-email-jhbird.choi@samsung.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org
2011-07-26 16:24:02 +02:00
Paul Mundt
b79b3e05b1 Merge branch 'rmobile/sdio' into rmobile-latest 2011-07-25 17:22:29 +09:00
Simon Horman
c5ad48f311 ARM: mach-shmobile: ag5evm: SDHI requires waiting for idle
The SDHI block on the ag5evm requires waiting for idle
before writing to some registers.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-07-25 17:14:30 +09:00
Mark Brown
40c5cc2639 regmap: Fix bulk reads
We should be reading the number of bytes we were asked for, not the size
of a single register.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-07-24 22:44:51 +01:00
Magnus Damm
9a14a92c93 sh: intc: enable both edges GPIO interrupts on sh7372
IRQ-capable GPIOs on sh7372 can be configured to produce interrupts on
both edges.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-07-21 16:53:24 +09:00
David Engraf
b4300b72cf shwdt: fix usage of mod_timer
This patch fixes the usage of mod_timer and makes the driver usable.
mod_timer must be called with an absolute timeout in jiffies, the old
implementation used a relative timeout thus the hardware watchdog was
never triggered.

Signed-off-by: David Engraf <david.engraf@sysgo.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-07-21 16:17:07 +09:00
Magnus Damm
3f7e5e2423 clocksource: sh_cmt: wait for CMCNT on init V2
Add code to the CMT driver to wait for CMCNT V2. This to let
the register value settle before starting the timer channel.
Makes the driver more robust.

Needed for CMT2 on sh7372 and certain CMT channels on sh73a0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-07-21 16:16:51 +09:00
Stefan Bader
89153b5cae xen-blkfront: Fix one off warning about name clash
Avoid telling users to use xvde and onwards when using xvde.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-07-14 14:19:51 -04:00
Stefan Bader
196cfe2ae8 xen-blkfront: Drop name and minor adjustments for emulated scsi devices
These were intended to avoid the namespace clash when representing
emulated IDE and SCSI devices. However that seems to confuse users
more than expected (a disk defined as sda becomes xvde).
So for now go back to the scheme which does no adjustments. This
will break when mixing IDE and SCSI names in the configuration of
guests but should be by now expected.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-07-14 14:19:33 -04:00
Jesper Juhl
b8e513a2ec ARM: static should be at beginning of declaration
Make sure that the 'static' keywork is at the beginning of declaration
for arch/arm/mach-shmobile/board-ap4evb.c

This gets rid of warnings like
  warning: ‘static’ is not at beginning of declaration
when building with -Wold-style-declaration (and/or -Wextra which also
enables it).

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-07-11 15:11:40 +09:00
Magnus Damm
0ed61fc9da ARM: mach-shmobile: Use CMT2 for timer on sh7372
Switch the sh7372 CPU support to use CMT2 instead
of CMT1 for system timer.

CMT1 is located in the A3SP power domain while CMT2
is located in the always-on power domain C5.

This improves our PM situation - with CMT2 as timer
we can power down A3SP and still access the timer.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-07-11 15:11:35 +09:00
Kuninori Morimoto
afe48049ab ARM: mach-shmobile: sh7372: Add USB-DMAC support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-21 17:58:35 +09:00
Randy Dunlap
a2daff6803 fuse: fix non-ANSI void function notation
Fix void function parameter list sparse warning:

fs/fuse/inode.c:74:44: warning: non-ANSI function declaration of function 'fuse_alloc_forget'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2011-06-01 16:09:32 +02:00
609 changed files with 9043 additions and 3092 deletions

View File

@@ -45,7 +45,7 @@ arrived in memory (this becomes more likely with devices behind PCI-PCI
bridges). In order to ensure that all the data has arrived in memory,
the interrupt handler must read a register on the device which raised
the interrupt. PCI transaction ordering rules require that all the data
arrives in memory before the value can be returned from the register.
arrive in memory before the value may be returned from the register.
Using MSIs avoids this problem as the interrupt-generating write cannot
pass the data writes, so by the time the interrupt is raised, the driver
knows that all the data has arrived in memory.
@@ -86,13 +86,13 @@ device.
int pci_enable_msi(struct pci_dev *dev)
A successful call will allocate ONE interrupt to the device, regardless
of how many MSIs the device supports. The device will be switched from
A successful call allocates ONE interrupt to the device, regardless
of how many MSIs the device supports. The device is switched from
pin-based interrupt mode to MSI mode. The dev->irq number is changed
to a new number which represents the message signaled interrupt.
This function should be called before the driver calls request_irq()
since enabling MSIs disables the pin-based IRQ and the driver will not
receive interrupts on the old interrupt.
to a new number which represents the message signaled interrupt;
consequently, this function should be called before the driver calls
request_irq(), because an MSI is delivered via a vector that is
different from the vector of a pin-based interrupt.
4.2.2 pci_enable_msi_block
@@ -111,20 +111,20 @@ the device are in the range dev->irq to dev->irq + count - 1.
If this function returns a negative number, it indicates an error and
the driver should not attempt to request any more MSI interrupts for
this device. If this function returns a positive number, it will be
less than 'count' and indicate the number of interrupts that could have
been allocated. In neither case will the irq value have been
updated, nor will the device have been switched into MSI mode.
this device. If this function returns a positive number, it is
less than 'count' and indicates the number of interrupts that could have
been allocated. In neither case is the irq value updated or the device
switched into MSI mode.
The device driver must decide what action to take if
pci_enable_msi_block() returns a value less than the number asked for.
Some devices can make use of fewer interrupts than the maximum they
request; in this case the driver should call pci_enable_msi_block()
pci_enable_msi_block() returns a value less than the number requested.
For instance, the driver could still make use of fewer interrupts;
in this case the driver should call pci_enable_msi_block()
again. Note that it is not guaranteed to succeed, even when the
'count' has been reduced to the value returned from a previous call to
pci_enable_msi_block(). This is because there are multiple constraints
on the number of vectors that can be allocated; pci_enable_msi_block()
will return as soon as it finds any constraint that doesn't allow the
returns as soon as it finds any constraint that doesn't allow the
call to succeed.
4.2.3 pci_disable_msi
@@ -137,10 +137,10 @@ interrupt number and frees the previously allocated message signaled
interrupt(s). The interrupt may subsequently be assigned to another
device, so drivers should not cache the value of dev->irq.
A device driver must always call free_irq() on the interrupt(s)
for which it has called request_irq() before calling this function.
Failure to do so will result in a BUG_ON(), the device will be left with
MSI enabled and will leak its vector.
Before calling this function, a device driver must always call free_irq()
on any interrupt for which it previously called request_irq().
Failure to do so results in a BUG_ON(), leaving the device with
MSI enabled and thus leaking its vector.
4.3 Using MSI-X
@@ -155,10 +155,10 @@ struct msix_entry {
};
This allows for the device to use these interrupts in a sparse fashion;
for example it could use interrupts 3 and 1027 and allocate only a
for example, it could use interrupts 3 and 1027 and yet allocate only a
two-element array. The driver is expected to fill in the 'entry' value
in each element of the array to indicate which entries it wants the kernel
to assign interrupts for. It is invalid to fill in two entries with the
in each element of the array to indicate for which entries the kernel
should assign interrupts; it is invalid to fill in two entries with the
same number.
4.3.1 pci_enable_msix
@@ -168,10 +168,11 @@ int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec)
Calling this function asks the PCI subsystem to allocate 'nvec' MSIs.
The 'entries' argument is a pointer to an array of msix_entry structs
which should be at least 'nvec' entries in size. On success, the
function will return 0 and the device will have been switched into
MSI-X interrupt mode. The 'vector' elements in each entry will have
been filled in with the interrupt number. The driver should then call
request_irq() for each 'vector' that it decides to use.
device is switched into MSI-X mode and the function returns 0.
The 'vector' member in each entry is populated with the interrupt number;
the driver should then call request_irq() for each 'vector' that it
decides to use. The device driver is responsible for keeping track of the
interrupts assigned to the MSI-X vectors so it can free them again later.
If this function returns a negative number, it indicates an error and
the driver should not attempt to allocate any more MSI-X interrupts for
@@ -181,16 +182,14 @@ below.
This function, in contrast with pci_enable_msi(), does not adjust
dev->irq. The device will not generate interrupts for this interrupt
number once MSI-X is enabled. The device driver is responsible for
keeping track of the interrupts assigned to the MSI-X vectors so it can
free them again later.
number once MSI-X is enabled.
Device drivers should normally call this function once per device
during the initialization phase.
It is ideal if drivers can cope with a variable number of MSI-X interrupts,
It is ideal if drivers can cope with a variable number of MSI-X interrupts;
there are many reasons why the platform may not be able to provide the
exact number a driver asks for.
exact number that a driver asks for.
A request loop to achieve that might look like:
@@ -212,15 +211,15 @@ static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec)
void pci_disable_msix(struct pci_dev *dev)
This API should be used to undo the effect of pci_enable_msix(). It frees
This function should be used to undo the effect of pci_enable_msix(). It frees
the previously allocated message signaled interrupts. The interrupts may
subsequently be assigned to another device, so drivers should not cache
the value of the 'vector' elements over a call to pci_disable_msix().
A device driver must always call free_irq() on the interrupt(s)
for which it has called request_irq() before calling this function.
Failure to do so will result in a BUG_ON(), the device will be left with
MSI enabled and will leak its vector.
Before calling this function, a device driver must always call free_irq()
on any interrupt for which it previously called request_irq().
Failure to do so results in a BUG_ON(), leaving the device with
MSI-X enabled and thus leaking its vector.
4.3.3 The MSI-X Table
@@ -232,10 +231,10 @@ mask or unmask an interrupt, it should call disable_irq() / enable_irq().
4.4 Handling devices implementing both MSI and MSI-X capabilities
If a device implements both MSI and MSI-X capabilities, it can
run in either MSI mode or MSI-X mode but not both simultaneously.
run in either MSI mode or MSI-X mode, but not both simultaneously.
This is a requirement of the PCI spec, and it is enforced by the
PCI layer. Calling pci_enable_msi() when MSI-X is already enabled or
pci_enable_msix() when MSI is already enabled will result in an error.
pci_enable_msix() when MSI is already enabled results in an error.
If a device driver wishes to switch between MSI and MSI-X at runtime,
it must first quiesce the device, then switch it back to pin-interrupt
mode, before calling pci_enable_msi() or pci_enable_msix() and resuming
@@ -251,7 +250,7 @@ the MSI-X facilities in preference to the MSI facilities. As mentioned
above, MSI-X supports any number of interrupts between 1 and 2048.
In constrast, MSI is restricted to a maximum of 32 interrupts (and
must be a power of two). In addition, the MSI interrupt vectors must
be allocated consecutively, so the system may not be able to allocate
be allocated consecutively, so the system might not be able to allocate
as many vectors for MSI as it could for MSI-X. On some platforms, MSI
interrupts must all be targeted at the same set of CPUs whereas MSI-X
interrupts can all be targeted at different CPUs.
@@ -281,7 +280,7 @@ disabled to enabled and back again.
Using 'lspci -v' (as root) may show some devices with "MSI", "Message
Signalled Interrupts" or "MSI-X" capabilities. Each of these capabilities
has an 'Enable' flag which will be followed with either "+" (enabled)
has an 'Enable' flag which is followed with either "+" (enabled)
or "-" (disabled).
@@ -298,7 +297,7 @@ The PCI stack provides three ways to disable MSIs:
Some host chipsets simply don't support MSIs properly. If we're
lucky, the manufacturer knows this and has indicated it in the ACPI
FADT table. In this case, Linux will automatically disable MSIs.
FADT table. In this case, Linux automatically disables MSIs.
Some boards don't include this information in the table and so we have
to detect them ourselves. The complete list of these is found near the
quirk_disable_all_msi() function in drivers/pci/quirks.c.
@@ -317,7 +316,7 @@ Some bridges allow you to enable MSIs by changing some bits in their
PCI configuration space (especially the Hypertransport chipsets such
as the nVidia nForce and Serverworks HT2000). As with host chipsets,
Linux mostly knows about them and automatically enables MSIs if it can.
If you have a bridge which Linux doesn't yet know about, you can enable
If you have a bridge unknown to Linux, you can enable
MSIs in configuration space using whatever method you know works, then
enable MSIs on that bridge by doing:
@@ -327,7 +326,7 @@ where $bridge is the PCI address of the bridge you've enabled (eg
0000:00:0e.0).
To disable MSIs, echo 0 instead of 1. Changing this value should be
done with caution as it can break interrupt handling for all devices
done with caution as it could break interrupt handling for all devices
below this bridge.
Again, please notify linux-pci@vger.kernel.org of any bridges that need
@@ -336,7 +335,7 @@ special handling.
5.3. Disabling MSIs on a single device
Some devices are known to have faulty MSI implementations. Usually this
is handled in the individual device driver but occasionally it's necessary
is handled in the individual device driver, but occasionally it's necessary
to handle this with a quirk. Some drivers have an option to disable use
of MSI. While this is a convenient workaround for the driver author,
it is not good practise, and should not be emulated.
@@ -350,7 +349,7 @@ for your machine. You should also check your .config to be sure you
have enabled CONFIG_PCI_MSI.
Then, 'lspci -t' gives the list of bridges above a device. Reading
/sys/bus/pci/devices/*/msi_bus will tell you whether MSI are enabled (1)
/sys/bus/pci/devices/*/msi_bus will tell you whether MSIs are enabled (1)
or disabled (0). If 0 is found in any of the msi_bus files belonging
to bridges between the PCI root and the device, MSIs are disabled.

View File

@@ -43,3 +43,74 @@ If one sets slice_idle=0 and if storage supports NCQ, CFQ internally switches
to IOPS mode and starts providing fairness in terms of number of requests
dispatched. Note that this mode switching takes effect only for group
scheduling. For non-cgroup users nothing should change.
CFQ IO scheduler Idling Theory
===============================
Idling on a queue is primarily about waiting for the next request to come
on same queue after completion of a request. In this process CFQ will not
dispatch requests from other cfq queues even if requests are pending there.
The rationale behind idling is that it can cut down on number of seeks
on rotational media. For example, if a process is doing dependent
sequential reads (next read will come on only after completion of previous
one), then not dispatching request from other queue should help as we
did not move the disk head and kept on dispatching sequential IO from
one queue.
CFQ has following service trees and various queues are put on these trees.
sync-idle sync-noidle async
All cfq queues doing synchronous sequential IO go on to sync-idle tree.
On this tree we idle on each queue individually.
All synchronous non-sequential queues go on sync-noidle tree. Also any
request which are marked with REQ_NOIDLE go on this service tree. On this
tree we do not idle on individual queues instead idle on the whole group
of queues or the tree. So if there are 4 queues waiting for IO to dispatch
we will idle only once last queue has dispatched the IO and there is
no more IO on this service tree.
All async writes go on async service tree. There is no idling on async
queues.
CFQ has some optimizations for SSDs and if it detects a non-rotational
media which can support higher queue depth (multiple requests at in
flight at a time), then it cuts down on idling of individual queues and
all the queues move to sync-noidle tree and only tree idle remains. This
tree idling provides isolation with buffered write queues on async tree.
FAQ
===
Q1. Why to idle at all on queues marked with REQ_NOIDLE.
A1. We only do tree idle (all queues on sync-noidle tree) on queues marked
with REQ_NOIDLE. This helps in providing isolation with all the sync-idle
queues. Otherwise in presence of many sequential readers, other
synchronous IO might not get fair share of disk.
For example, if there are 10 sequential readers doing IO and they get
100ms each. If a REQ_NOIDLE request comes in, it will be scheduled
roughly after 1 second. If after completion of REQ_NOIDLE request we
do not idle, and after a couple of milli seconds a another REQ_NOIDLE
request comes in, again it will be scheduled after 1second. Repeat it
and notice how a workload can lose its disk share and suffer due to
multiple sequential readers.
fsync can generate dependent IO where bunch of data is written in the
context of fsync, and later some journaling data is written. Journaling
data comes in only after fsync has finished its IO (atleast for ext4
that seemed to be the case). Now if one decides not to idle on fsync
thread due to REQ_NOIDLE, then next journaling write will not get
scheduled for another second. A process doing small fsync, will suffer
badly in presence of multiple sequential readers.
Hence doing tree idling on threads using REQ_NOIDLE flag on requests
provides isolation from multiple sequential readers and at the same
time we do not idle on individual threads.
Q2. When to specify REQ_NOIDLE
A2. I would think whenever one is doing synchronous write and not expecting
more writes to be dispatched from same context soon, should be able
to specify REQ_NOIDLE on writes and that probably should work well for
most of the cases.

View File

@@ -592,3 +592,11 @@ Why: In 3.0, we can now autodetect internal 3G device and already have
interface that was used by acer-wmi driver. It will replaced by
information log when acer-wmi initial.
Who: Lee, Chun-Yi <jlee@novell.com>
----------------------------
What: The XFS nodelaylog mount option
When: 3.3
Why: The delaylog mode that has been the default since 2.6.39 has proven
stable, and the old code is in the way of additional improvements in
the log code.
Who: Christoph Hellwig <hch@lst.de>

View File

@@ -1350,9 +1350,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
it is equivalent to "nosmp", which also disables
the IO APIC.
max_loop= [LOOP] Maximum number of loopback devices that can
be mounted
Format: <1-256>
max_loop= [LOOP] The number of loop block devices that get
(loop.max_loop) unconditionally pre-created at init time. The default
number is configured by BLK_DEV_LOOP_MIN_COUNT. Instead
of statically allocating a predefined number, loop
devices can be requested on-demand with the
/dev/loop-control interface.
mcatest= [IA-64]

View File

@@ -1,13 +1,21 @@
00-INDEX
- this file
3c359.txt
- information on the 3Com TokenLink Velocity XL (3c5359) driver.
3c505.txt
- information on the 3Com EtherLink Plus (3c505) driver.
3c509.txt
- information on the 3Com Etherlink III Series Ethernet cards.
6pack.txt
- info on the 6pack protocol, an alternative to KISS for AX.25
DLINK.txt
- info on the D-Link DE-600/DE-620 parallel port pocket adapters
PLIP.txt
- PLIP: The Parallel Line Internet Protocol device driver
README.ipw2100
- README for the Intel PRO/Wireless 2100 driver.
README.ipw2200
- README for the Intel PRO/Wireless 2915ABG and 2200BG driver.
README.sb1000
- info on General Instrument/NextLevel SURFboard1000 cable modem.
alias.txt
@@ -20,8 +28,12 @@ atm.txt
- info on where to get ATM programs and support for Linux.
ax25.txt
- info on using AX.25 and NET/ROM code for Linux
batman-adv.txt
- B.A.T.M.A.N routing protocol on top of layer 2 Ethernet Frames.
baycom.txt
- info on the driver for Baycom style amateur radio modems
bonding.txt
- Linux Ethernet Bonding Driver HOWTO: link aggregation in Linux.
bridge.txt
- where to get user space programs for ethernet bridging with Linux.
can.txt
@@ -34,32 +46,60 @@ cxacru.txt
- Conexant AccessRunner USB ADSL Modem
cxacru-cf.py
- Conexant AccessRunner USB ADSL Modem configuration file parser
cxgb.txt
- Release Notes for the Chelsio N210 Linux device driver.
dccp.txt
- the Datagram Congestion Control Protocol (DCCP) (RFC 4340..42).
de4x5.txt
- the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver
decnet.txt
- info on using the DECnet networking layer in Linux.
depca.txt
- the Digital DEPCA/EtherWORKS DE1?? and DE2?? LANCE Ethernet driver
dl2k.txt
- README for D-Link DL2000-based Gigabit Ethernet Adapters (dl2k.ko).
dm9000.txt
- README for the Simtec DM9000 Network driver.
dmfe.txt
- info on the Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver.
dns_resolver.txt
- The DNS resolver module allows kernel servies to make DNS queries.
driver.txt
- Softnet driver issues.
e100.txt
- info on Intel's EtherExpress PRO/100 line of 10/100 boards
e1000.txt
- info on Intel's E1000 line of gigabit ethernet boards
e1000e.txt
- README for the Intel Gigabit Ethernet Driver (e1000e).
eql.txt
- serial IP load balancing
ewrk3.txt
- the Digital EtherWORKS 3 DE203/4/5 Ethernet driver
fib_trie.txt
- Level Compressed Trie (LC-trie) notes: a structure for routing.
filter.txt
- Linux Socket Filtering
fore200e.txt
- FORE Systems PCA-200E/SBA-200E ATM NIC driver info.
framerelay.txt
- info on using Frame Relay/Data Link Connection Identifier (DLCI).
gen_stats.txt
- Generic networking statistics for netlink users.
generic_hdlc.txt
- The generic High Level Data Link Control (HDLC) layer.
generic_netlink.txt
- info on Generic Netlink
gianfar.txt
- Gianfar Ethernet Driver.
ieee802154.txt
- Linux IEEE 802.15.4 implementation, API and drivers
ifenslave.c
- Configure network interfaces for parallel routing (bonding).
igb.txt
- README for the Intel Gigabit Ethernet Driver (igb).
igbvf.txt
- README for the Intel Gigabit Ethernet Driver (igbvf).
ip-sysctl.txt
- /proc/sys/net/ipv4/* variables
ip_dynaddr.txt
@@ -68,41 +108,117 @@ ipddp.txt
- AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation
iphase.txt
- Interphase PCI ATM (i)Chip IA Linux driver info.
ipv6.txt
- Options to the ipv6 kernel module.
ipvs-sysctl.txt
- Per-inode explanation of the /proc/sys/net/ipv4/vs interface.
irda.txt
- where to get IrDA (infrared) utilities and info for Linux.
ixgb.txt
- README for the Intel 10 Gigabit Ethernet Driver (ixgb).
ixgbe.txt
- README for the Intel 10 Gigabit Ethernet Driver (ixgbe).
ixgbevf.txt
- README for the Intel Virtual Function (VF) Driver (ixgbevf).
l2tp.txt
- User guide to the L2TP tunnel protocol.
lapb-module.txt
- programming information of the LAPB module.
ltpc.txt
- the Apple or Farallon LocalTalk PC card driver
mac80211-injection.txt
- HOWTO use packet injection with mac80211
multicast.txt
- Behaviour of cards under Multicast
multiqueue.txt
- HOWTO for multiqueue network device support.
netconsole.txt
- The network console module netconsole.ko: configuration and notes.
netdev-features.txt
- Network interface features API description.
netdevices.txt
- info on network device driver functions exported to the kernel.
netif-msg.txt
- Design of the network interface message level setting (NETIF_MSG_*).
nfc.txt
- The Linux Near Field Communication (NFS) subsystem.
olympic.txt
- IBM PCI Pit/Pit-Phy/Olympic Token Ring driver info.
operstates.txt
- Overview of network interface operational states.
packet_mmap.txt
- User guide to memory mapped packet socket rings (PACKET_[RT]X_RING).
phonet.txt
- The Phonet packet protocol used in Nokia cellular modems.
phy.txt
- The PHY abstraction layer.
pktgen.txt
- User guide to the kernel packet generator (pktgen.ko).
policy-routing.txt
- IP policy-based routing
ppp_generic.txt
- Information about the generic PPP driver.
proc_net_tcp.txt
- Per inode overview of the /proc/net/tcp and /proc/net/tcp6 interfaces.
radiotap-headers.txt
- Background on radiotap headers.
ray_cs.txt
- Raylink Wireless LAN card driver info.
rds.txt
- Background on the reliable, ordered datagram delivery method RDS.
regulatory.txt
- Overview of the Linux wireless regulatory infrastructure.
rxrpc.txt
- Guide to the RxRPC protocol.
s2io.txt
- Release notes for Neterion Xframe I/II 10GbE driver.
scaling.txt
- Explanation of network scaling techniques: RSS, RPS, RFS, aRFS, XPS.
sctp.txt
- Notes on the Linux kernel implementation of the SCTP protocol.
secid.txt
- Explanation of the secid member in flow structures.
skfp.txt
- SysKonnect FDDI (SK-5xxx, Compaq Netelligent) driver info.
smc9.txt
- the driver for SMC's 9000 series of Ethernet cards
smctr.txt
- SMC TokenCard TokenRing Linux driver info.
spider-net.txt
- README for the Spidernet Driver (as found in PS3 / Cell BE).
stmmac.txt
- README for the STMicro Synopsys Ethernet driver.
tc-actions-env-rules.txt
- rules for traffic control (tc) actions.
timestamping.txt
- overview of network packet timestamping variants.
tcp.txt
- short blurb on how TCP output takes place.
tcp-thin.txt
- kernel tuning options for low rate 'thin' TCP streams.
tlan.txt
- ThunderLAN (Compaq Netelligent 10/100, Olicom OC-2xxx) driver info.
tms380tr.txt
- SysKonnect Token Ring ISA/PCI adapter driver info.
tproxy.txt
- Transparent proxy support user guide.
tuntap.txt
- TUN/TAP device driver, allowing user space Rx/Tx of packets.
udplite.txt
- UDP-Lite protocol (RFC 3828) introduction.
vortex.txt
- info on using 3Com Vortex (3c590, 3c592, 3c595, 3c597) Ethernet cards.
vxge.txt
- README for the Neterion X3100 PCIe Server Adapter.
x25.txt
- general info on X.25 development.
x25-iface.txt
- description of the X.25 Packet Layer to LAPB device interface.
xfrm_proc.txt
- description of the statistics package for XFRM.
xfrm_sync.txt
- sync patches for XFRM enable migration of an SA between hosts.
xfrm_sysctl.txt
- description of the XFRM configuration options.
z8530drv.txt
- info about Linux driver for Z8530 based HDLC cards for AX.25

View File

@@ -992,7 +992,7 @@ bindv6only - BOOLEAN
TRUE: disable IPv4-mapped address feature
FALSE: enable IPv4-mapped address feature
Default: FALSE (as specified in RFC2553bis)
Default: FALSE (as specified in RFC3493)
IPv6 Fragmentation:

View File

@@ -52,7 +52,8 @@ module parameter for specifying the number of hardware queues to
configure. In the bnx2x driver, for instance, this parameter is called
num_queues. A typical RSS configuration would be to have one receive queue
for each CPU if the device supports enough queues, or otherwise at least
one for each cache domain at a particular cache level (L1, L2, etc.).
one for each memory domain, where a memory domain is a set of CPUs that
share a particular memory level (L1, L2, NUMA node, etc.).
The indirection table of an RSS device, which resolves a queue by masked
hash, is usually programmed by the driver at initialization. The
@@ -82,11 +83,17 @@ RSS should be enabled when latency is a concern or whenever receive
interrupt processing forms a bottleneck. Spreading load between CPUs
decreases queue length. For low latency networking, the optimal setting
is to allocate as many queues as there are CPUs in the system (or the
NIC maximum, if lower). Because the aggregate number of interrupts grows
with each additional queue, the most efficient high-rate configuration
NIC maximum, if lower). The most efficient high-rate configuration
is likely the one with the smallest number of receive queues where no
CPU that processes receive interrupts reaches 100% utilization. Per-cpu
load can be observed using the mpstat utility.
receive queue overflows due to a saturated CPU, because in default
mode with interrupt coalescing enabled, the aggregate number of
interrupts (and thus work) grows with each additional queue.
Per-cpu load can be observed using the mpstat utility, but note that on
processors with hyperthreading (HT), each hyperthread is represented as
a separate CPU. For interrupt handling, HT has shown no benefit in
initial tests, so limit the number of queues to the number of CPU cores
in the system.
RPS: Receive Packet Steering
@@ -145,7 +152,7 @@ the bitmap.
== Suggested Configuration
For a single queue device, a typical RPS configuration would be to set
the rps_cpus to the CPUs in the same cache domain of the interrupting
the rps_cpus to the CPUs in the same memory domain of the interrupting
CPU. If NUMA locality is not an issue, this could also be all CPUs in
the system. At high interrupt rate, it might be wise to exclude the
interrupting CPU from the map since that already performs much work.
@@ -154,7 +161,7 @@ For a multi-queue system, if RSS is configured so that a hardware
receive queue is mapped to each CPU, then RPS is probably redundant
and unnecessary. If there are fewer hardware queues than CPUs, then
RPS might be beneficial if the rps_cpus for each queue are the ones that
share the same cache domain as the interrupting CPU for that queue.
share the same memory domain as the interrupting CPU for that queue.
RFS: Receive Flow Steering
@@ -326,7 +333,7 @@ The queue chosen for transmitting a particular flow is saved in the
corresponding socket structure for the flow (e.g. a TCP connection).
This transmit queue is used for subsequent packets sent on the flow to
prevent out of order (ooo) packets. The choice also amortizes the cost
of calling get_xps_queues() over all packets in the connection. To avoid
of calling get_xps_queues() over all packets in the flow. To avoid
ooo packets, the queue for a flow can subsequently only be changed if
skb->ooo_okay is set for a packet in the flow. This flag indicates that
there are no outstanding packets in the flow, so the transmit queue can

View File

@@ -431,8 +431,7 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h:
void pm_runtime_irq_safe(struct device *dev);
- set the power.irq_safe flag for the device, causing the runtime-PM
suspend and resume callbacks (but not the idle callback) to be invoked
with interrupts disabled
callbacks to be invoked with interrupts off
void pm_runtime_mark_last_busy(struct device *dev);
- set the power.last_busy field to the current time

View File

@@ -8,3 +8,6 @@ lguest/
- Extremely simple hypervisor for experimental/educational use.
uml/
- User Mode Linux, builds/runs Linux kernel as a userspace program.
virtio.txt
- Text version of draft virtio spec.
See http://ozlabs.org/~rusty/virtio-spec

View File

@@ -1996,6 +1996,9 @@ int main(int argc, char *argv[])
/* We use a simple helper to copy the arguments separated by spaces. */
concat((char *)(boot + 1), argv+optind+2);
/* Set kernel alignment to 16M (CONFIG_PHYSICAL_ALIGN) */
boot->hdr.kernel_alignment = 0x1000000;
/* Boot protocol version: 2.07 supports the fields for lguest. */
boot->hdr.version = 0x207;

File diff suppressed because it is too large Load Diff

View File

@@ -1883,7 +1883,7 @@ S: Maintained
F: drivers/connector/
CONTROL GROUPS (CGROUPS)
M: Paul Menage <menage@google.com>
M: Paul Menage <paul@paulmenage.org>
M: Li Zefan <lizf@cn.fujitsu.com>
L: containers@lists.linux-foundation.org
S: Maintained
@@ -1932,7 +1932,7 @@ S: Maintained
F: tools/power/cpupower
CPUSETS
M: Paul Menage <menage@google.com>
M: Paul Menage <paul@paulmenage.org>
W: http://www.bullopensource.org/cpuset/
W: http://oss.sgi.com/projects/cpusets/
S: Supported
@@ -2649,11 +2649,11 @@ F: drivers/net/wan/dlci.c
F: drivers/net/wan/sdla.c
FRAMEBUFFER LAYER
M: Paul Mundt <lethal@linux-sh.org>
M: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
L: linux-fbdev@vger.kernel.org
W: http://linux-fbdev.sourceforge.net/
Q: http://patchwork.kernel.org/project/linux-fbdev/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6.git
T: git git://github.com/schandinat/linux-2.6.git fbdev-next
S: Maintained
F: Documentation/fb/
F: Documentation/devicetree/bindings/fb/
@@ -4450,8 +4450,8 @@ M: "David S. Miller" <davem@davemloft.net>
L: netdev@vger.kernel.org
W: http://www.linuxfoundation.org/en/Net
W: http://patchwork.ozlabs.org/project/netdev/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
S: Maintained
F: net/
F: include/net/
@@ -4971,7 +4971,7 @@ M: Paul Mackerras <paulus@samba.org>
M: Ingo Molnar <mingo@elte.hu>
M: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
S: Supported
F: kernel/perf_event*.c
F: kernel/events/*
F: include/linux/perf_event.h
F: arch/*/kernel/perf_event*.c
F: arch/*/kernel/*/perf_event*.c
@@ -5532,6 +5532,7 @@ F: include/media/*7146*
SAMSUNG AUDIO (ASoC) DRIVERS
M: Jassi Brar <jassisinghbrar@gmail.com>
M: Sangbeom Kim <sbkim73@samsung.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Supported
F: sound/soc/samsung
@@ -7087,7 +7088,7 @@ S: Supported
F: drivers/mmc/host/vub300.c
W1 DALLAS'S 1-WIRE BUS
M: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
M: Evgeniy Polyakov <zbr@ioremap.net>
S: Maintained
F: Documentation/w1/
F: drivers/w1/

View File

@@ -1,8 +1,8 @@
VERSION = 3
PATCHLEVEL = 1
SUBLEVEL = 0
EXTRAVERSION = -rc2
NAME = Wet Seal
EXTRAVERSION = -rc5
NAME = "Divemaster Edition"
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"

View File

@@ -27,13 +27,4 @@
#define UAC_NOFIX 2
#define UAC_SIGBUS 4
#ifdef __KERNEL__
/* This is the shift that is applied to the UAC bits as stored in the
per-thread flags. See thread_info.h. */
#define UAC_SHIFT 6
#endif
#endif /* __ASM_ALPHA_SYSINFO_H */

View File

@@ -74,9 +74,9 @@ register struct thread_info *__current_thread_info __asm__("$8");
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_POLLING_NRFLAG 8 /* poll_idle is polling NEED_RESCHED */
#define TIF_DIE_IF_KERNEL 9 /* dik recursion lock */
#define TIF_UAC_NOPRINT 10 /* see sysinfo.h */
#define TIF_UAC_NOFIX 11
#define TIF_UAC_SIGBUS 12
#define TIF_UAC_NOPRINT 10 /* ! Preserve sequence of following */
#define TIF_UAC_NOFIX 11 /* ! flags as they match */
#define TIF_UAC_SIGBUS 12 /* ! userspace part of 'osf_sysinfo' */
#define TIF_MEMDIE 13 /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK 14 /* restore signal mask in do_signal */
#define TIF_FREEZE 16 /* is freezing for suspend */
@@ -97,7 +97,7 @@ register struct thread_info *__current_thread_info __asm__("$8");
#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK \
| _TIF_SYSCALL_TRACE)
#define ALPHA_UAC_SHIFT 10
#define ALPHA_UAC_SHIFT TIF_UAC_NOPRINT
#define ALPHA_UAC_MASK (1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \
1 << TIF_UAC_SIGBUS)

View File

@@ -42,6 +42,7 @@
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/sysinfo.h>
#include <asm/thread_info.h>
#include <asm/hwrpb.h>
#include <asm/processor.h>
@@ -633,9 +634,10 @@ SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
case GSI_UACPROC:
if (nbytes < sizeof(unsigned int))
return -EINVAL;
w = (current_thread_info()->flags >> UAC_SHIFT) & UAC_BITMASK;
if (put_user(w, (unsigned int __user *)buffer))
return -EFAULT;
w = (current_thread_info()->flags >> ALPHA_UAC_SHIFT) &
UAC_BITMASK;
if (put_user(w, (unsigned int __user *)buffer))
return -EFAULT;
return 1;
case GSI_PROC_TYPE:
@@ -756,8 +758,8 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
case SSIN_UACPROC:
again:
old = current_thread_info()->flags;
new = old & ~(UAC_BITMASK << UAC_SHIFT);
new = new | (w & UAC_BITMASK) << UAC_SHIFT;
new = old & ~(UAC_BITMASK << ALPHA_UAC_SHIFT);
new = new | (w & UAC_BITMASK) << ALPHA_UAC_SHIFT;
if (cmpxchg(&current_thread_info()->flags,
old, new) != old)
goto again;

View File

@@ -360,7 +360,7 @@ sys_call_table:
.quad sys_newuname
.quad sys_nanosleep /* 340 */
.quad sys_mremap
.quad sys_nfsservctl
.quad sys_ni_syscall /* old nfsservctl */
.quad sys_setresuid
.quad sys_getresuid
.quad sys_pciconfig_read /* 345 */

View File

@@ -1271,6 +1271,18 @@ config ARM_ERRATA_754327
This workaround defines cpu_relax() as smp_mb(), preventing correctly
written polling loops from denying visibility of updates to memory.
config ARM_ERRATA_364296
bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
depends on CPU_V6 && !SMP
help
This options enables the workaround for the 364296 ARM1136
r0p2 erratum (possible cache data corruption with
hit-under-miss enabled). It sets the undocumented bit 31 in
the auxiliary control register and the FI bit in the control
register, thus disabling hit-under-miss without putting the
processor into full low interrupt latency mode. ARM11MPCore
is not affected.
endmenu
source "arch/arm/common/Kconfig"

View File

@@ -82,7 +82,7 @@ asmlinkage void mmc_loader(unsigned char *buf, unsigned long len)
/* Disable clock to MMC hardware block */
__raw_writel(__raw_readl(SMSTPCR3) & (1 << 12), SMSTPCR3);
__raw_writel(__raw_readl(SMSTPCR3) | (1 << 12), SMSTPCR3);
mmc_update_progress(MMC_PROGRESS_DONE);
}

View File

@@ -85,7 +85,7 @@ asmlinkage void mmc_loader(unsigned short *buf, unsigned long len)
goto err;
/* Disable clock to SDHI1 hardware block */
__raw_writel(__raw_readl(SMSTPCR3) & (1 << 13), SMSTPCR3);
__raw_writel(__raw_readl(SMSTPCR3) | (1 << 13), SMSTPCR3);
mmc_update_progress(MMC_PROGRESS_DONE);

View File

@@ -64,7 +64,7 @@
#define L2X0_AUX_CTRL_MASK 0xc0000fff
#define L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT 16
#define L2X0_AUX_CTRL_WAY_SIZE_SHIFT 17
#define L2X0_AUX_CTRL_WAY_SIZE_MASK (0x3 << 17)
#define L2X0_AUX_CTRL_WAY_SIZE_MASK (0x7 << 17)
#define L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT 22
#define L2X0_AUX_CTRL_NS_LOCKDOWN_SHIFT 26
#define L2X0_AUX_CTRL_NS_INT_CTRL_SHIFT 27

View File

@@ -41,7 +41,7 @@ struct arm_pmu_platdata {
* encoded error on failure.
*/
extern struct platform_device *
reserve_pmu(enum arm_pmu_type device);
reserve_pmu(enum arm_pmu_type type);
/**
* release_pmu() - Relinquish control of the performance counters
@@ -62,26 +62,26 @@ release_pmu(enum arm_pmu_type type);
* the actual hardware initialisation.
*/
extern int
init_pmu(enum arm_pmu_type device);
init_pmu(enum arm_pmu_type type);
#else /* CONFIG_CPU_HAS_PMU */
#include <linux/err.h>
static inline struct platform_device *
reserve_pmu(enum arm_pmu_type device)
reserve_pmu(enum arm_pmu_type type)
{
return ERR_PTR(-ENODEV);
}
static inline int
release_pmu(struct platform_device *pdev)
release_pmu(enum arm_pmu_type type)
{
return -ENODEV;
}
static inline int
init_pmu(enum arm_pmu_type device)
init_pmu(enum arm_pmu_type type)
{
return -ENODEV;
}

View File

@@ -178,7 +178,7 @@
CALL(sys_ni_syscall) /* vm86 */
CALL(sys_ni_syscall) /* was sys_query_module */
CALL(sys_poll)
CALL(sys_nfsservctl)
CALL(sys_ni_syscall) /* was nfsservctl */
/* 170 */ CALL(sys_setresgid16)
CALL(sys_getresgid16)
CALL(sys_prctl)

View File

@@ -31,7 +31,7 @@ static int __devinit pmu_register(struct platform_device *pdev,
{
if (type < 0 || type >= ARM_NUM_PMU_DEVICES) {
pr_warning("received registration request for unknown "
"device %d\n", type);
"PMU device type %d\n", type);
return -EINVAL;
}
@@ -112,17 +112,17 @@ static int __init register_pmu_driver(void)
device_initcall(register_pmu_driver);
struct platform_device *
reserve_pmu(enum arm_pmu_type device)
reserve_pmu(enum arm_pmu_type type)
{
struct platform_device *pdev;
if (test_and_set_bit_lock(device, &pmu_lock)) {
if (test_and_set_bit_lock(type, &pmu_lock)) {
pdev = ERR_PTR(-EBUSY);
} else if (pmu_devices[device] == NULL) {
clear_bit_unlock(device, &pmu_lock);
} else if (pmu_devices[type] == NULL) {
clear_bit_unlock(type, &pmu_lock);
pdev = ERR_PTR(-ENODEV);
} else {
pdev = pmu_devices[device];
pdev = pmu_devices[type];
}
return pdev;
@@ -130,11 +130,11 @@ reserve_pmu(enum arm_pmu_type device)
EXPORT_SYMBOL_GPL(reserve_pmu);
int
release_pmu(enum arm_pmu_type device)
release_pmu(enum arm_pmu_type type)
{
if (WARN_ON(!pmu_devices[device]))
if (WARN_ON(!pmu_devices[type]))
return -EINVAL;
clear_bit_unlock(device, &pmu_lock);
clear_bit_unlock(type, &pmu_lock);
return 0;
}
EXPORT_SYMBOL_GPL(release_pmu);
@@ -182,17 +182,17 @@ init_cpu_pmu(void)
}
int
init_pmu(enum arm_pmu_type device)
init_pmu(enum arm_pmu_type type)
{
int err = 0;
switch (device) {
switch (type) {
case ARM_PMU_DEVICE_CPU:
err = init_cpu_pmu();
break;
default:
pr_warning("attempt to initialise unknown device %d\n",
device);
pr_warning("attempt to initialise PMU of unknown "
"type %d\n", type);
err = -EINVAL;
}

View File

@@ -57,7 +57,8 @@ relocate_new_kernel:
mov r0,#0
ldr r1,kexec_mach_type
ldr r2,kexec_boot_atags
mov pc,lr
ARM( mov pc, lr )
THUMB( bx lr )
.align

View File

@@ -280,18 +280,19 @@ static void __init cacheid_init(void)
if (arch >= CPU_ARCH_ARMv6) {
if ((cachetype & (7 << 29)) == 4 << 29) {
/* ARMv7 register format */
arch = CPU_ARCH_ARMv7;
cacheid = CACHEID_VIPT_NONALIASING;
if ((cachetype & (3 << 14)) == 1 << 14)
cacheid |= CACHEID_ASID_TAGGED;
else if (cpu_has_aliasing_icache(CPU_ARCH_ARMv7))
cacheid |= CACHEID_VIPT_I_ALIASING;
} else if (cachetype & (1 << 23)) {
cacheid = CACHEID_VIPT_ALIASING;
} else {
cacheid = CACHEID_VIPT_NONALIASING;
if (cpu_has_aliasing_icache(CPU_ARCH_ARMv6))
cacheid |= CACHEID_VIPT_I_ALIASING;
arch = CPU_ARCH_ARMv6;
if (cachetype & (1 << 23))
cacheid = CACHEID_VIPT_ALIASING;
else
cacheid = CACHEID_VIPT_NONALIASING;
}
if (cpu_has_aliasing_icache(arch))
cacheid |= CACHEID_VIPT_I_ALIASING;
} else {
cacheid = CACHEID_VIVT;
}

View File

@@ -137,8 +137,8 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk)
clk->max_delta_ns = clockevent_delta2ns(0xffffffff, clk);
clk->min_delta_ns = clockevent_delta2ns(0xf, clk);
clockevents_register_device(clk);
/* Make sure our local interrupt controller has this enabled */
gic_enable_ppi(clk->irq);
clockevents_register_device(clk);
}

View File

@@ -157,7 +157,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc1_clk),
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),

View File

@@ -6,7 +6,7 @@
* TS72xx memory map:
*
* virt phys size
* febff000 22000000 4K model number register
* febff000 22000000 4K model number register (bits 0-2)
* febfe000 22400000 4K options register
* febfd000 22800000 4K options register #2
* febf9000 10800000 4K TS-5620 RTC index register
@@ -20,6 +20,9 @@
#define TS72XX_MODEL_TS7200 0x00
#define TS72XX_MODEL_TS7250 0x01
#define TS72XX_MODEL_TS7260 0x02
#define TS72XX_MODEL_TS7300 0x03
#define TS72XX_MODEL_TS7400 0x04
#define TS72XX_MODEL_MASK 0x07
#define TS72XX_OPTIONS_PHYS_BASE 0x22400000
@@ -51,19 +54,34 @@
#ifndef __ASSEMBLY__
static inline int ts72xx_model(void)
{
return __raw_readb(TS72XX_MODEL_VIRT_BASE) & TS72XX_MODEL_MASK;
}
static inline int board_is_ts7200(void)
{
return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7200;
return ts72xx_model() == TS72XX_MODEL_TS7200;
}
static inline int board_is_ts7250(void)
{
return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7250;
return ts72xx_model() == TS72XX_MODEL_TS7250;
}
static inline int board_is_ts7260(void)
{
return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7260;
return ts72xx_model() == TS72XX_MODEL_TS7260;
}
static inline int board_is_ts7300(void)
{
return ts72xx_model() == TS72XX_MODEL_TS7300;
}
static inline int board_is_ts7400(void)
{
return ts72xx_model() == TS72XX_MODEL_TS7400;
}
static inline int is_max197_installed(void)

View File

@@ -520,7 +520,7 @@ static struct clk init_clocks_off[] = {
.ctrlbit = (1 << 21),
}, {
.name = "ac97",
.id = -1,
.devname = "samsung-ac97",
.enable = exynos4_clk_ip_peril_ctrl,
.ctrlbit = (1 << 27),
}, {

View File

@@ -24,12 +24,13 @@
#include <plat/exynos4.h>
#include <plat/adc-core.h>
#include <plat/sdhci.h>
#include <plat/devs.h>
#include <plat/fb-core.h>
#include <plat/fimc-core.h>
#include <plat/iic-core.h>
#include <plat/reset.h>
#include <mach/regs-irq.h>
#include <mach/regs-pmu.h>
extern int combiner_init(unsigned int combiner_nr, void __iomem *base,
unsigned int irq_start);
@@ -128,6 +129,11 @@ static void exynos4_idle(void)
local_irq_enable();
}
static void exynos4_sw_reset(void)
{
__raw_writel(0x1, S5P_SWRESET);
}
/*
* exynos4_map_io
*
@@ -241,5 +247,8 @@ int __init exynos4_init(void)
/* set idle function */
pm_idle = exynos4_idle;
/* set sw_reset function */
s5p_reset_hook = exynos4_sw_reset;
return sysdev_register(&exynos4_sysdev);
}

View File

@@ -80,9 +80,8 @@
#define IRQ_HSMMC3 IRQ_SPI(76)
#define IRQ_DWMCI IRQ_SPI(77)
#define IRQ_MIPICSI0 IRQ_SPI(78)
#define IRQ_MIPICSI1 IRQ_SPI(80)
#define IRQ_MIPI_CSIS0 IRQ_SPI(78)
#define IRQ_MIPI_CSIS1 IRQ_SPI(80)
#define IRQ_ONENAND_AUDI IRQ_SPI(82)
#define IRQ_ROTATOR IRQ_SPI(83)

View File

@@ -29,6 +29,8 @@
#define S5P_USE_STANDBY_WFE1 (1 << 25)
#define S5P_USE_MASK ((0x3 << 16) | (0x3 << 24))
#define S5P_SWRESET S5P_PMUREG(0x0400)
#define S5P_WAKEUP_STAT S5P_PMUREG(0x0600)
#define S5P_EINT_WAKEUP_MASK S5P_PMUREG(0x0604)
#define S5P_WAKEUP_MASK S5P_PMUREG(0x0608)

View File

@@ -23,6 +23,8 @@
#include <mach/regs-gpio.h>
#include <asm/mach/irq.h>
static DEFINE_SPINLOCK(eint_lock);
static unsigned int eint0_15_data[16];
@@ -184,8 +186,11 @@ static inline void exynos4_irq_demux_eint(unsigned int start)
static void exynos4_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_get_chip(irq);
chained_irq_enter(chip, desc);
exynos4_irq_demux_eint(IRQ_EINT(16));
exynos4_irq_demux_eint(IRQ_EINT(24));
chained_irq_exit(chip, desc);
}
static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
@@ -193,6 +198,7 @@ static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
u32 *irq_data = irq_get_handler_data(irq);
struct irq_chip *chip = irq_get_chip(irq);
chained_irq_enter(chip, desc);
chip->irq_mask(&desc->irq_data);
if (chip->irq_ack)
@@ -201,6 +207,7 @@ static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
generic_handle_irq(*irq_data);
chip->irq_unmask(&desc->irq_data);
chained_irq_exit(chip, desc);
}
int __init exynos4_init_irq_eint(void)

View File

@@ -79,7 +79,7 @@ static struct s3c2410_uartcfg universal_uartcfgs[] __initdata = {
};
static struct regulator_consumer_supply max8952_consumer =
REGULATOR_SUPPLY("vddarm", NULL);
REGULATOR_SUPPLY("vdd_arm", NULL);
static struct max8952_platform_data universal_max8952_pdata __initdata = {
.gpio_vid0 = EXYNOS4_GPX0(3),
@@ -105,7 +105,7 @@ static struct max8952_platform_data universal_max8952_pdata __initdata = {
};
static struct regulator_consumer_supply lp3974_buck1_consumer =
REGULATOR_SUPPLY("vddint", NULL);
REGULATOR_SUPPLY("vdd_int", NULL);
static struct regulator_consumer_supply lp3974_buck2_consumer =
REGULATOR_SUPPLY("vddg3d", NULL);

View File

@@ -82,7 +82,7 @@ static int exynos4_usb_phy1_init(struct platform_device *pdev)
rstcon &= ~(HOST_LINK_PORT_SWRST_MASK | PHY1_SWRST_MASK);
writel(rstcon, EXYNOS4_RSTCON);
udelay(50);
udelay(80);
clk_disable(otg_clk);
clk_put(otg_clk);

View File

@@ -62,6 +62,7 @@ config ARCH_EBSA285_HOST
config ARCH_NETWINDER
bool "NetWinder"
select CLKSRC_I8253
select CLKEVT_I8253
select FOOTBRIDGE_HOST
select ISA
select ISA_DMA

View File

@@ -18,6 +18,7 @@
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <video/vga.h>
#include <asm/irq.h>
#include <asm/system.h>

View File

@@ -310,7 +310,7 @@ static struct sys_timer eukrea_cpuimx27_timer = {
.init = eukrea_cpuimx27_timer_init,
};
MACHINE_START(CPUIMX27, "EUKREA CPUIMX27")
MACHINE_START(EUKREA_CPUIMX27, "EUKREA CPUIMX27")
.boot_params = MX27_PHYS_OFFSET + 0x100,
.map_io = mx27_map_io,
.init_early = imx27_init_early,

View File

@@ -192,7 +192,7 @@ struct sys_timer eukrea_cpuimx35_timer = {
.init = eukrea_cpuimx35_timer_init,
};
MACHINE_START(EUKREA_CPUIMX35, "Eukrea CPUIMX35")
MACHINE_START(EUKREA_CPUIMX35SD, "Eukrea CPUIMX35")
/* Maintainer: Eukrea Electromatique */
.boot_params = MX3x_PHYS_OFFSET + 0x100,
.map_io = mx35_map_io,

View File

@@ -161,7 +161,7 @@ static struct sys_timer eukrea_cpuimx25_timer = {
.init = eukrea_cpuimx25_timer_init,
};
MACHINE_START(EUKREA_CPUIMX25, "Eukrea CPUIMX25")
MACHINE_START(EUKREA_CPUIMX25SD, "Eukrea CPUIMX25")
/* Maintainer: Eukrea Electromatique */
.boot_params = MX25_PHYS_OFFSET + 0x100,
.map_io = mx25_map_io,

View File

@@ -77,7 +77,7 @@ static int __init dns323_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
/*
* Check for devices with hard-wired IRQs.
*/
irq = orion5x_pci_map_irq(const dev, slot, pin);
irq = orion5x_pci_map_irq(dev, slot, pin);
if (irq != -1)
return irq;

View File

@@ -14,6 +14,7 @@
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/mbus.h>
#include <video/vga.h>
#include <asm/irq.h>
#include <asm/mach/pci.h>
#include <plat/pcie.h>

View File

@@ -44,6 +44,7 @@ static inline void arch_reset(char mode, const char *cmd)
*/
if (realview_reset)
realview_reset(mode);
dsb();
}
#endif

View File

@@ -16,6 +16,7 @@
#include <linux/suspend.h>
#include <linux/serial_core.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <mach/map.h>
#include <mach/irqs.h>

View File

@@ -129,7 +129,7 @@ static int s5p64x0_alloc_gc(void)
}
ct = gc->chip_types;
ct->chip.irq_ack = irq_gc_ack;
ct->chip.irq_ack = irq_gc_ack_set_bit;
ct->chip.irq_mask = irq_gc_mask_set_bit;
ct->chip.irq_unmask = irq_gc_mask_clr_bit;
ct->chip.irq_set_type = s5p64x0_irq_eint_set_type;

View File

@@ -88,7 +88,7 @@ static struct sleep_save s5pv210_core_save[] = {
SAVE_ITEM(S3C2410_TCNTO(0)),
};
void s5pv210_cpu_suspend(unsigned long arg)
static int s5pv210_cpu_suspend(unsigned long arg)
{
unsigned long tmp;

View File

@@ -341,6 +341,7 @@ static struct platform_device mipidsi0_device = {
static struct sh_mobile_sdhi_info sdhi0_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
.tmio_caps = MMC_CAP_SD_HIGHSPEED,
.tmio_ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29,
};
@@ -382,7 +383,7 @@ void ag5evm_sdhi1_set_pwr(struct platform_device *pdev, int state)
}
static struct sh_mobile_sdhi_info sh_sdhi1_info = {
.tmio_flags = TMIO_MMC_WRPROTECT_DISABLE,
.tmio_flags = TMIO_MMC_WRPROTECT_DISABLE | TMIO_MMC_HAS_IDLE_WAIT,
.tmio_caps = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
.tmio_ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.set_pwr = ag5evm_sdhi1_set_pwr,

View File

@@ -1412,6 +1412,7 @@ static void __init ap4evb_init(void)
fsi_init_pm_clock();
sh7372_pm_init();
pm_clk_add(&fsi_device.dev, "spu2");
pm_clk_add(&lcdc1_device.dev, "hdmi");
}
static void __init ap4evb_timer_init(void)

View File

@@ -641,6 +641,8 @@ static struct usbhs_private usbhs0_private = {
},
.driver_param = {
.buswait_bwait = 4,
.d0_tx_id = SHDMA_SLAVE_USB0_TX,
.d1_rx_id = SHDMA_SLAVE_USB0_RX,
},
},
};
@@ -810,6 +812,8 @@ static struct usbhs_private usbhs1_private = {
.buswait_bwait = 4,
.pipe_type = usbhs1_pipe_cfg,
.pipe_size = ARRAY_SIZE(usbhs1_pipe_cfg),
.d0_tx_id = SHDMA_SLAVE_USB1_TX,
.d1_rx_id = SHDMA_SLAVE_USB1_RX,
},
},
};
@@ -1588,6 +1592,7 @@ static void __init mackerel_init(void)
hdmi_init_pm_clock();
sh7372_pm_init();
pm_clk_add(&fsi_device.dev, "spu2");
pm_clk_add(&hdmi_lcdc_device.dev, "hdmi");
}
static void __init mackerel_timer_init(void)

View File

@@ -503,16 +503,17 @@ static struct clk *late_main_clks[] = {
&sh7372_fsidivb_clk,
};
enum { MSTP001,
enum { MSTP001, MSTP000,
MSTP131, MSTP130,
MSTP129, MSTP128, MSTP127, MSTP126, MSTP125,
MSTP118, MSTP117, MSTP116, MSTP113,
MSTP106, MSTP101, MSTP100,
MSTP223,
MSTP218, MSTP217, MSTP216,
MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP329, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403,
MSTP218, MSTP217, MSTP216, MSTP214, MSTP208, MSTP207,
MSTP206, MSTP205, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP407, MSTP406,
MSTP405, MSTP404, MSTP403, MSTP400,
MSTP_NR };
#define MSTP(_parent, _reg, _bit, _flags) \
@@ -520,6 +521,7 @@ enum { MSTP001,
static struct clk mstp_clks[MSTP_NR] = {
[MSTP001] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR0, 1, 0), /* IIC2 */
[MSTP000] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR0, 0, 0), /* MSIOF0 */
[MSTP131] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 31, 0), /* VEU3 */
[MSTP130] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 30, 0), /* VEU2 */
[MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* VEU1 */
@@ -538,14 +540,16 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */
[MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */
[MSTP216] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */
[MSTP214] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 14, 0), /* USBDMAC */
[MSTP208] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 8, 0), /* MSIOF1 */
[MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
[MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
[MSTP205] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 5, 0), /* MSIOF2 */
[MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
[MSTP203] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 3, 0), /* SCIFA1 */
[MSTP202] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 2, 0), /* SCIFA2 */
[MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */
[MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */
[MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
[MSTP328] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR3, 28, 0), /* FSI2 */
[MSTP323] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 23, 0), /* IIC1 */
[MSTP322] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 22, 0), /* USB0 */
@@ -557,8 +561,12 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP413] = MSTP(&pllc1_div2_clk, SMSTPCR4, 13, 0), /* HDMI */
[MSTP411] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 11, 0), /* IIC3 */
[MSTP410] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 10, 0), /* IIC4 */
[MSTP407] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 7, 0), /* USB-DMAC1 */
[MSTP406] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 6, 0), /* USB1 */
[MSTP405] = MSTP(&r_clk, SMSTPCR4, 5, 0), /* CMT4 */
[MSTP404] = MSTP(&r_clk, SMSTPCR4, 4, 0), /* CMT3 */
[MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */
[MSTP400] = MSTP(&r_clk, SMSTPCR4, 0, 0), /* CMT2 */
};
static struct clk_lookup lookups[] = {
@@ -609,6 +617,7 @@ static struct clk_lookup lookups[] = {
/* MSTP32 clocks */
CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* IIC2 */
CLKDEV_DEV_ID("spi_sh_msiof.0", &mstp_clks[MSTP000]), /* MSIOF0 */
CLKDEV_DEV_ID("uio_pdrv_genirq.4", &mstp_clks[MSTP131]), /* VEU3 */
CLKDEV_DEV_ID("uio_pdrv_genirq.3", &mstp_clks[MSTP130]), /* VEU2 */
CLKDEV_DEV_ID("uio_pdrv_genirq.2", &mstp_clks[MSTP129]), /* VEU1 */
@@ -629,14 +638,16 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* DMAC1 */
CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* DMAC2 */
CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]), /* DMAC3 */
CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]), /* USB-DMAC0 */
CLKDEV_DEV_ID("spi_sh_msiof.1", &mstp_clks[MSTP208]), /* MSIOF1 */
CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP206]), /* SCIFB */
CLKDEV_DEV_ID("spi_sh_msiof.2", &mstp_clks[MSTP205]), /* MSIOF2 */
CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */
CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), /* SCIFA2 */
CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), /* SCIFA3 */
CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */
CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */
CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), /* FSI2 */
CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* IIC1 */
CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[MSTP322]), /* USB0 */
@@ -650,11 +661,17 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh-mobile-hdmi", &mstp_clks[MSTP413]), /* HDMI */
CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* IIC3 */
CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* IIC4 */
CLKDEV_DEV_ID("sh-dma-engine.4", &mstp_clks[MSTP407]), /* USB-DMAC1 */
CLKDEV_DEV_ID("r8a66597_hcd.1", &mstp_clks[MSTP406]), /* USB1 */
CLKDEV_DEV_ID("r8a66597_udc.1", &mstp_clks[MSTP406]), /* USB1 */
CLKDEV_DEV_ID("renesas_usbhs.1", &mstp_clks[MSTP406]), /* USB1 */
CLKDEV_DEV_ID("sh_cmt.4", &mstp_clks[MSTP405]), /* CMT4 */
CLKDEV_DEV_ID("sh_cmt.3", &mstp_clks[MSTP404]), /* CMT3 */
CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */
CLKDEV_DEV_ID("sh_cmt.2", &mstp_clks[MSTP400]), /* CMT2 */
CLKDEV_ICK_ID("hdmi", "sh_mobile_lcdc_fb.1",
&div6_reparent_clks[DIV6_HDMI]),
CLKDEV_ICK_ID("ick", "sh-mobile-hdmi", &div6_reparent_clks[DIV6_HDMI]),
CLKDEV_ICK_ID("icka", "sh_fsi2", &div6_reparent_clks[DIV6_FSIA]),
CLKDEV_ICK_ID("ickb", "sh_fsi2", &div6_reparent_clks[DIV6_FSIB]),

View File

@@ -365,7 +365,7 @@ void __init sh73a0_clock_init(void)
__raw_writel(0x108, SD2CKCR);
/* detect main clock parent */
switch ((__raw_readl(CKSCR) >> 24) & 0x03) {
switch ((__raw_readl(CKSCR) >> 28) & 0x03) {
case 0:
main_clk.parent = &sh73a0_extal1_clk;
break;

View File

@@ -459,6 +459,10 @@ enum {
SHDMA_SLAVE_SDHI2_TX,
SHDMA_SLAVE_MMCIF_RX,
SHDMA_SLAVE_MMCIF_TX,
SHDMA_SLAVE_USB0_TX,
SHDMA_SLAVE_USB0_RX,
SHDMA_SLAVE_USB1_TX,
SHDMA_SLAVE_USB1_RX,
};
extern struct clk sh7372_extal1_clk;

View File

@@ -379,7 +379,7 @@ enum {
/* BBIF2 */
VPU,
TSIF1,
_3DG_SGX530,
/* 3DG */
_2DDMAC,
IIC2_ALI2, IIC2_TACKI2, IIC2_WAITI2, IIC2_DTEI2,
IPMMU_IPMMUR, IPMMU_IPMMUR2,
@@ -436,7 +436,7 @@ static struct intc_vect intcs_vectors[] = {
/* BBIF2 */
INTCS_VECT(VPU, 0x980),
INTCS_VECT(TSIF1, 0x9a0),
INTCS_VECT(_3DG_SGX530, 0x9e0),
/* 3DG */
INTCS_VECT(_2DDMAC, 0xa00),
INTCS_VECT(IIC2_ALI2, 0xa80), INTCS_VECT(IIC2_TACKI2, 0xaa0),
INTCS_VECT(IIC2_WAITI2, 0xac0), INTCS_VECT(IIC2_DTEI2, 0xae0),
@@ -521,7 +521,7 @@ static struct intc_mask_reg intcs_mask_registers[] = {
RTDMAC_1_DEI3, RTDMAC_1_DEI2, RTDMAC_1_DEI1, RTDMAC_1_DEI0 } },
{ 0xffd20198, 0xffd201d8, 8, /* IMR6SA / IMCR6SA */
{ 0, 0, MSIOF, 0,
_3DG_SGX530, 0, 0, 0 } },
0, 0, 0, 0 } },
{ 0xffd2019c, 0xffd201dc, 8, /* IMR7SA / IMCR7SA */
{ 0, TMU_TUNI2, TMU_TUNI1, TMU_TUNI0,
0, 0, 0, 0 } },
@@ -561,7 +561,6 @@ static struct intc_prio_reg intcs_prio_registers[] = {
TMU_TUNI2, TSIF1 } },
{ 0xffd2001c, 0, 16, 4, /* IPRHS */ { 0, 0, VEU, BEU } },
{ 0xffd20020, 0, 16, 4, /* IPRIS */ { 0, MSIOF, TSIF0, IIC0 } },
{ 0xffd20024, 0, 16, 4, /* IPRJS */ { 0, _3DG_SGX530, 0, 0 } },
{ 0xffd20028, 0, 16, 4, /* IPRKS */ { 0, 0, LMB, 0 } },
{ 0xffd2002c, 0, 16, 4, /* IPRLS */ { IPMMU, 0, 0, 0 } },
{ 0xffd20030, 0, 16, 4, /* IPRMS */ { IIC2, 0, 0, 0 } },

View File

@@ -169,35 +169,35 @@ static struct platform_device scif6_device = {
};
/* CMT */
static struct sh_timer_config cmt10_platform_data = {
.name = "CMT10",
.channel_offset = 0x10,
.timer_bit = 0,
static struct sh_timer_config cmt2_platform_data = {
.name = "CMT2",
.channel_offset = 0x40,
.timer_bit = 5,
.clockevent_rating = 125,
.clocksource_rating = 125,
};
static struct resource cmt10_resources[] = {
static struct resource cmt2_resources[] = {
[0] = {
.name = "CMT10",
.start = 0xe6138010,
.end = 0xe613801b,
.name = "CMT2",
.start = 0xe6130040,
.end = 0xe613004b,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x0b00), /* CMT1_CMT10 */
.start = evt2irq(0x0b80), /* CMT2 */
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device cmt10_device = {
static struct platform_device cmt2_device = {
.name = "sh_cmt",
.id = 10,
.id = 2,
.dev = {
.platform_data = &cmt10_platform_data,
.platform_data = &cmt2_platform_data,
},
.resource = cmt10_resources,
.num_resources = ARRAY_SIZE(cmt10_resources),
.resource = cmt2_resources,
.num_resources = ARRAY_SIZE(cmt2_resources),
};
/* TMU */
@@ -602,6 +602,150 @@ static struct platform_device dma2_device = {
},
};
/*
* USB-DMAC
*/
unsigned int usbts_shift[] = {3, 4, 5};
enum {
XMIT_SZ_8BYTE = 0,
XMIT_SZ_16BYTE = 1,
XMIT_SZ_32BYTE = 2,
};
#define USBTS_INDEX2VAL(i) (((i) & 3) << 6)
static const struct sh_dmae_channel sh7372_usb_dmae_channels[] = {
{
.offset = 0,
}, {
.offset = 0x20,
},
};
/* USB DMAC0 */
static const struct sh_dmae_slave_config sh7372_usb_dmae0_slaves[] = {
{
.slave_id = SHDMA_SLAVE_USB0_TX,
.chcr = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
}, {
.slave_id = SHDMA_SLAVE_USB0_RX,
.chcr = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
},
};
static struct sh_dmae_pdata usb_dma0_platform_data = {
.slave = sh7372_usb_dmae0_slaves,
.slave_num = ARRAY_SIZE(sh7372_usb_dmae0_slaves),
.channel = sh7372_usb_dmae_channels,
.channel_num = ARRAY_SIZE(sh7372_usb_dmae_channels),
.ts_low_shift = 6,
.ts_low_mask = 0xc0,
.ts_high_shift = 0,
.ts_high_mask = 0,
.ts_shift = usbts_shift,
.ts_shift_num = ARRAY_SIZE(usbts_shift),
.dmaor_init = DMAOR_DME,
.chcr_offset = 0x14,
.chcr_ie_bit = 1 << 5,
.dmaor_is_32bit = 1,
.needs_tend_set = 1,
.no_dmars = 1,
};
static struct resource sh7372_usb_dmae0_resources[] = {
{
/* Channel registers and DMAOR */
.start = 0xe68a0020,
.end = 0xe68a0064 - 1,
.flags = IORESOURCE_MEM,
},
{
/* VCR/SWR/DMICR */
.start = 0xe68a0000,
.end = 0xe68a0014 - 1,
.flags = IORESOURCE_MEM,
},
{
/* IRQ for channels */
.start = evt2irq(0x0a00),
.end = evt2irq(0x0a00),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device usb_dma0_device = {
.name = "sh-dma-engine",
.id = 3,
.resource = sh7372_usb_dmae0_resources,
.num_resources = ARRAY_SIZE(sh7372_usb_dmae0_resources),
.dev = {
.platform_data = &usb_dma0_platform_data,
},
};
/* USB DMAC1 */
static const struct sh_dmae_slave_config sh7372_usb_dmae1_slaves[] = {
{
.slave_id = SHDMA_SLAVE_USB1_TX,
.chcr = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
}, {
.slave_id = SHDMA_SLAVE_USB1_RX,
.chcr = USBTS_INDEX2VAL(XMIT_SZ_8BYTE),
},
};
static struct sh_dmae_pdata usb_dma1_platform_data = {
.slave = sh7372_usb_dmae1_slaves,
.slave_num = ARRAY_SIZE(sh7372_usb_dmae1_slaves),
.channel = sh7372_usb_dmae_channels,
.channel_num = ARRAY_SIZE(sh7372_usb_dmae_channels),
.ts_low_shift = 6,
.ts_low_mask = 0xc0,
.ts_high_shift = 0,
.ts_high_mask = 0,
.ts_shift = usbts_shift,
.ts_shift_num = ARRAY_SIZE(usbts_shift),
.dmaor_init = DMAOR_DME,
.chcr_offset = 0x14,
.chcr_ie_bit = 1 << 5,
.dmaor_is_32bit = 1,
.needs_tend_set = 1,
.no_dmars = 1,
};
static struct resource sh7372_usb_dmae1_resources[] = {
{
/* Channel registers and DMAOR */
.start = 0xe68c0020,
.end = 0xe68c0064 - 1,
.flags = IORESOURCE_MEM,
},
{
/* VCR/SWR/DMICR */
.start = 0xe68c0000,
.end = 0xe68c0014 - 1,
.flags = IORESOURCE_MEM,
},
{
/* IRQ for channels */
.start = evt2irq(0x1d00),
.end = evt2irq(0x1d00),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device usb_dma1_device = {
.name = "sh-dma-engine",
.id = 4,
.resource = sh7372_usb_dmae1_resources,
.num_resources = ARRAY_SIZE(sh7372_usb_dmae1_resources),
.dev = {
.platform_data = &usb_dma1_platform_data,
},
};
/* VPU */
static struct uio_info vpu_platform_data = {
.name = "VPU5HG",
@@ -818,7 +962,7 @@ static struct platform_device *sh7372_early_devices[] __initdata = {
&scif4_device,
&scif5_device,
&scif6_device,
&cmt10_device,
&cmt2_device,
&tmu00_device,
&tmu01_device,
};
@@ -829,6 +973,8 @@ static struct platform_device *sh7372_late_devices[] __initdata = {
&dma0_device,
&dma1_device,
&dma2_device,
&usb_dma0_device,
&usb_dma1_device,
&vpu_device,
&veu0_device,
&veu1_device,

View File

@@ -318,6 +318,10 @@ static struct clk v2m_sp804_clk = {
.rate = 1000000,
};
static struct clk v2m_ref_clk = {
.rate = 32768,
};
static struct clk dummy_apb_pclk;
static struct clk_lookup v2m_lookups[] = {
@@ -348,6 +352,9 @@ static struct clk_lookup v2m_lookups[] = {
}, { /* CLCD */
.dev_id = "mb:clcd",
.clk = &osc1_clk,
}, { /* SP805 WDT */
.dev_id = "mb:wdt",
.clk = &v2m_ref_clk,
}, { /* SP804 timers */
.dev_id = "sp804",
.con_id = "v2m-timer0",

View File

@@ -379,7 +379,7 @@ ENTRY(cpu_arm920_set_pte_ext)
/* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
.globl cpu_arm920_suspend_size
.equ cpu_arm920_suspend_size, 4 * 3
.equ cpu_arm920_suspend_size, 4 * 4
#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_arm920_do_suspend)
stmfd sp!, {r4 - r7, lr}

View File

@@ -394,7 +394,7 @@ ENTRY(cpu_arm926_set_pte_ext)
/* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
.globl cpu_arm926_suspend_size
.equ cpu_arm926_suspend_size, 4 * 3
.equ cpu_arm926_suspend_size, 4 * 4
#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_arm926_do_suspend)
stmfd sp!, {r4 - r7, lr}

View File

@@ -182,11 +182,11 @@ ENDPROC(cpu_sa1100_do_suspend)
ENTRY(cpu_sa1100_do_resume)
ldmia r0, {r4 - r7} @ load cp regs
mov r1, #0
mcr p15, 0, r1, c8, c7, 0 @ flush I+D TLBs
mcr p15, 0, r1, c7, c7, 0 @ flush I&D cache
mcr p15, 0, r1, c9, c0, 0 @ invalidate RB
mcr p15, 0, r1, c9, c0, 5 @ allow user space to use RB
mov ip, #0
mcr p15, 0, ip, c8, c7, 0 @ flush I+D TLBs
mcr p15, 0, ip, c7, c7, 0 @ flush I&D cache
mcr p15, 0, ip, c9, c0, 0 @ invalidate RB
mcr p15, 0, ip, c9, c0, 5 @ allow user space to use RB
mcr p15, 0, r4, c3, c0, 0 @ domain ID
mcr p15, 0, r5, c2, c0, 0 @ translation table base addr

View File

@@ -223,6 +223,22 @@ __v6_setup:
mrc p15, 0, r0, c1, c0, 0 @ read control register
bic r0, r0, r5 @ clear bits them
orr r0, r0, r6 @ set them
#ifdef CONFIG_ARM_ERRATA_364296
/*
* Workaround for the 364296 ARM1136 r0p2 erratum (possible cache data
* corruption with hit-under-miss enabled). The conditional code below
* (setting the undocumented bit 31 in the auxiliary control register
* and the FI bit in the control register) disables hit-under-miss
* without putting the processor into full low interrupt latency mode.
*/
ldr r6, =0x4107b362 @ id for ARM1136 r0p2
mrc p15, 0, r5, c0, c0, 0 @ get processor id
teq r5, r6 @ check for the faulty core
mrceq p15, 0, r5, c1, c0, 1 @ load aux control reg
orreq r5, r5, #(1 << 31) @ set the undocumented bit 31
mcreq p15, 0, r5, c1, c0, 1 @ write aux control reg
orreq r0, r0, #(1 << 21) @ low interrupt latency configuration
#endif
mov pc, lr @ return to head.S:__ret
/*

View File

@@ -66,6 +66,7 @@ ENDPROC(cpu_v7_proc_fin)
ENTRY(cpu_v7_reset)
mrc p15, 0, r1, c1, c0, 0 @ ctrl register
bic r1, r1, #0x1 @ ...............m
THUMB( bic r1, r1, #1 << 30 ) @ SCTLR.TE (Thumb exceptions)
mcr p15, 0, r1, c1, c0, 0 @ disable MMU
isb
mov pc, r0
@@ -247,13 +248,16 @@ ENTRY(cpu_v7_do_resume)
mcr p15, 0, r7, c2, c0, 0 @ TTB 0
mcr p15, 0, r8, c2, c0, 1 @ TTB 1
mcr p15, 0, ip, c2, c0, 2 @ TTB control register
mcr p15, 0, r10, c1, c0, 1 @ Auxiliary control register
mrc p15, 0, r4, c1, c0, 1 @ Read Auxiliary control register
teq r4, r10 @ Is it already set?
mcrne p15, 0, r10, c1, c0, 1 @ No, so write it
mcr p15, 0, r11, c1, c0, 2 @ Co-processor access control
ldr r4, =PRRR @ PRRR
ldr r5, =NMRR @ NMRR
mcr p15, 0, r4, c10, c2, 0 @ write PRRR
mcr p15, 0, r5, c10, c2, 1 @ write NMRR
isb
dsb
mov r0, r9 @ control register
mov r2, r7, lsr #14 @ get TTB0 base
mov r2, r2, lsl #14

View File

@@ -406,7 +406,7 @@ ENTRY(cpu_xsc3_set_pte_ext)
.align
.globl cpu_xsc3_suspend_size
.equ cpu_xsc3_suspend_size, 4 * 8
.equ cpu_xsc3_suspend_size, 4 * 7
#ifdef CONFIG_PM_SLEEP
ENTRY(cpu_xsc3_do_suspend)
stmfd sp!, {r4 - r10, lr}
@@ -418,12 +418,12 @@ ENTRY(cpu_xsc3_do_suspend)
mrc p15, 0, r9, c1, c0, 1 @ auxiliary control reg
mrc p15, 0, r10, c1, c0, 0 @ control reg
bic r4, r4, #2 @ clear frequency change bit
stmia r0, {r1, r4 - r10} @ store v:p offset + cp regs
stmia r0, {r4 - r10} @ store cp regs
ldmia sp!, {r4 - r10, pc}
ENDPROC(cpu_xsc3_do_suspend)
ENTRY(cpu_xsc3_do_resume)
ldmia r0, {r1, r4 - r10} @ load v:p offset + cp regs
ldmia r0, {r4 - r10} @ load cp regs
mov ip, #0
mcr p15, 0, ip, c7, c7, 0 @ invalidate I & D caches, BTB
mcr p15, 0, ip, c7, c10, 4 @ drain write (&fill) buffer

View File

@@ -622,7 +622,8 @@ static struct dev_pm_domain omap_device_pm_domain = {
SET_RUNTIME_PM_OPS(_od_runtime_suspend, _od_runtime_resume,
_od_runtime_idle)
USE_PLATFORM_PM_SLEEP_OPS
SET_SYSTEM_SLEEP_PM_OPS(_od_suspend_noirq, _od_resume_noirq)
.suspend_noirq = _od_suspend_noirq,
.resume_noirq = _od_resume_noirq,
}
};

View File

@@ -192,7 +192,7 @@ unsigned long s5p_spdif_get_rate(struct clk *clk)
if (IS_ERR(pclk))
return -EINVAL;
rate = pclk->ops->get_rate(clk);
rate = pclk->ops->get_rate(pclk);
clk_put(pclk);
return rate;

View File

@@ -23,6 +23,8 @@
#include <plat/gpio-core.h>
#include <plat/gpio-cfg.h>
#include <asm/mach/irq.h>
#define GPIO_BASE(chip) (((unsigned long)(chip)->base) & 0xFFFFF000u)
#define CON_OFFSET 0x700
@@ -81,6 +83,9 @@ static void s5p_gpioint_handler(unsigned int irq, struct irq_desc *desc)
int group, pend_offset, mask_offset;
unsigned int pend, mask;
struct irq_chip *chip = irq_get_chip(irq);
chained_irq_enter(chip, desc);
for (group = 0; group < bank->nr_groups; group++) {
struct s3c_gpio_chip *chip = bank->chips[group];
if (!chip)
@@ -102,6 +107,7 @@ static void s5p_gpioint_handler(unsigned int irq, struct irq_desc *desc)
pend &= ~BIT(offset);
}
}
chained_irq_exit(chip, desc);
}
static __init int s5p_gpioint_add(struct s3c_gpio_chip *chip)

View File

@@ -20,7 +20,7 @@ struct samsung_bl_gpio_info {
int func;
};
extern void samsung_bl_set(struct samsung_bl_gpio_info *gpio_info,
extern void __init samsung_bl_set(struct samsung_bl_gpio_info *gpio_info,
struct platform_pwm_backlight_data *bl_data);
#endif /* __ASM_PLAT_BACKLIGHT_H */

View File

@@ -22,9 +22,14 @@
#include <plat/irq-vic-timer.h>
#include <plat/regs-timer.h>
#include <asm/mach/irq.h>
static void s3c_irq_demux_vic_timer(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_get_chip(irq);
chained_irq_enter(chip, desc);
generic_handle_irq((int)desc->irq_data.handler_data);
chained_irq_exit(chip, desc);
}
/* We assume the IRQ_TIMER0..IRQ_TIMER4 range is continuous. */

View File

@@ -351,7 +351,7 @@ centro MACH_CENTRO CENTRO 1944
nokia_rx51 MACH_NOKIA_RX51 NOKIA_RX51 1955
omap_zoom2 MACH_OMAP_ZOOM2 OMAP_ZOOM2 1967
cpuat9260 MACH_CPUAT9260 CPUAT9260 1973
eukrea_cpuimx27 MACH_CPUIMX27 CPUIMX27 1975
eukrea_cpuimx27 MACH_EUKREA_CPUIMX27 EUKREA_CPUIMX27 1975
acs5k MACH_ACS5K ACS5K 1982
snapper_9260 MACH_SNAPPER_9260 SNAPPER_9260 1987
dsm320 MACH_DSM320 DSM320 1988
@@ -476,8 +476,8 @@ cns3420vb MACH_CNS3420VB CNS3420VB 2776
omap4_panda MACH_OMAP4_PANDA OMAP4_PANDA 2791
ti8168evm MACH_TI8168EVM TI8168EVM 2800
teton_bga MACH_TETON_BGA TETON_BGA 2816
eukrea_cpuimx25sd MACH_EUKREA_CPUIMX25 EUKREA_CPUIMX25 2820
eukrea_cpuimx35sd MACH_EUKREA_CPUIMX35 EUKREA_CPUIMX35 2821
eukrea_cpuimx25sd MACH_EUKREA_CPUIMX25SD EUKREA_CPUIMX25SD 2820
eukrea_cpuimx35sd MACH_EUKREA_CPUIMX35SD EUKREA_CPUIMX35SD 2821
eukrea_cpuimx51sd MACH_EUKREA_CPUIMX51SD EUKREA_CPUIMX51SD 2822
eukrea_cpuimx51 MACH_EUKREA_CPUIMX51 EUKREA_CPUIMX51 2823
smdkc210 MACH_SMDKC210 SMDKC210 2838

View File

@@ -158,7 +158,7 @@ sys_call_table:
.long sys_sched_rr_get_interval
.long sys_nanosleep
.long sys_poll
.long sys_nfsservctl /* 145 */
.long sys_ni_syscall /* 145 was nfsservctl */
.long sys_setresgid
.long sys_getresgid
.long sys_prctl

View File

@@ -1543,7 +1543,7 @@ ENTRY(_sys_call_table)
.long _sys_ni_syscall /* for vm86 */
.long _sys_ni_syscall /* old "query_module" */
.long _sys_ni_syscall /* sys_poll */
.long _sys_nfsservctl
.long _sys_ni_syscall /* old nfsservctl */
.long _sys_setresgid /* setresgid16 */ /* 170 */
.long _sys_getresgid /* getresgid16 */
.long _sys_prctl

View File

@@ -771,7 +771,7 @@ sys_call_table:
.long sys_ni_syscall /* sys_vm86 */
.long sys_ni_syscall /* Old sys_query_module */
.long sys_poll
.long sys_nfsservctl
.long sys_ni_syscall /* old nfsservctl */
.long sys_setresgid16 /* 170 */
.long sys_getresgid16
.long sys_prctl

View File

@@ -714,7 +714,7 @@ sys_call_table:
.long sys_ni_syscall /* sys_vm86 */
.long sys_ni_syscall /* Old sys_query_module */
.long sys_poll
.long sys_nfsservctl
.long sys_ni_syscall /* Old nfsservctl */
.long sys_setresgid16 /* 170 */
.long sys_getresgid16
.long sys_prctl

View File

@@ -0,0 +1,9 @@
#ifndef _ASM_SERIAL_H
#define _ASM_SERIAL_H
/*
* This assumes you have a 1.8432 MHz clock for your UART.
*/
#define BASE_BAUD (1843200 / 16)
#endif /* _ASM_SERIAL_H */

View File

@@ -1358,7 +1358,7 @@ sys_call_table:
.long sys_ni_syscall /* for vm86 */
.long sys_ni_syscall /* Old sys_query_module */
.long sys_poll
.long sys_nfsservctl
.long sys_ni_syscall /* Old nfsservctl */
.long sys_setresgid16 /* 170 */
.long sys_getresgid16
.long sys_prctl

View File

@@ -183,7 +183,7 @@ SYMBOL_NAME_LABEL(sys_call_table)
.long SYMBOL_NAME(sys_ni_syscall) /* for vm86 */
.long SYMBOL_NAME(sys_ni_syscall) /* sys_query_module */
.long SYMBOL_NAME(sys_poll)
.long SYMBOL_NAME(sys_nfsservctl)
.long SYMBOL_NAME(sys_ni_syscall) /* old nfsservctl */
.long SYMBOL_NAME(sys_setresgid16) /* 170 */
.long SYMBOL_NAME(sys_getresgid16)
.long SYMBOL_NAME(sys_prctl)

View File

@@ -162,7 +162,6 @@ config IA64_GENERIC
select ACPI_NUMA
select SWIOTLB
select PCI_MSI
select DMAR
help
This selects the system type of your hardware. A "generic" kernel
will run on any supported IA-64 system. However, if you configure

View File

@@ -234,3 +234,4 @@ CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=y
CONFIG_MISC_DEVICES=y
CONFIG_DMAR=y

View File

@@ -1614,7 +1614,7 @@ sys_call_table:
data8 sys_sched_get_priority_min
data8 sys_sched_rr_get_interval
data8 sys_nanosleep
data8 sys_nfsservctl
data8 sys_ni_syscall // old nfsservctl
data8 sys_prctl // 1170
data8 sys_getpagesize
data8 sys_mmap2

View File

@@ -168,7 +168,7 @@ ENTRY(sys_call_table)
.long sys_tas /* vm86 syscall holder */
.long sys_ni_syscall /* query_module syscall holder */
.long sys_poll
.long sys_nfsservctl
.long sys_ni_syscall /* was nfsservctl */
.long sys_setresgid /* 170 */
.long sys_getresgid
.long sys_prctl

View File

@@ -162,7 +162,7 @@ static inline __attribute_const__ int __virt_to_node_shift(void)
pgdat->node_mem_map + (__pfn - pgdat->node_start_pfn); \
})
#define page_to_pfn(_page) ({ \
struct page *__p = (_page); \
const struct page *__p = (_page); \
struct pglist_data *pgdat; \
pgdat = &pg_data_map[page_to_nid(__p)]; \
((__p) - pgdat->node_mem_map) + pgdat->node_start_pfn; \

View File

@@ -189,7 +189,7 @@ ENTRY(sys_call_table)
.long sys_getpagesize
.long sys_ni_syscall /* old "query_module" */
.long sys_poll
.long sys_nfsservctl
.long sys_ni_syscall /* old nfsservctl */
.long sys_setresgid16 /* 170 */
.long sys_getresgid16
.long sys_prctl

View File

@@ -173,7 +173,7 @@ ENTRY(sys_call_table)
.long sys_ni_syscall /* sys_vm86 */
.long sys_ni_syscall /* Old sys_query_module */
.long sys_poll
.long sys_nfsservctl
.long sys_ni_syscall /* old nfsservctl */
.long sys_setresgid /* 170 */
.long sys_getresgid
.long sys_prctl

View File

@@ -424,7 +424,7 @@ einval: li v0, -ENOSYS
sys sys_getresuid 3
sys sys_ni_syscall 0 /* was sys_query_module */
sys sys_poll 3
sys sys_nfsservctl 3
sys sys_ni_syscall 0 /* was nfsservctl */
sys sys_setresgid 3 /* 4190 */
sys sys_getresgid 3
sys sys_prctl 5

View File

@@ -299,7 +299,7 @@ sys_call_table:
PTR sys_ni_syscall /* 5170, was get_kernel_syms */
PTR sys_ni_syscall /* was query_module */
PTR sys_quotactl
PTR sys_nfsservctl
PTR sys_ni_syscall /* was nfsservctl */
PTR sys_ni_syscall /* res. for getpmsg */
PTR sys_ni_syscall /* 5175 for putpmsg */
PTR sys_ni_syscall /* res. for afs_syscall */

View File

@@ -294,7 +294,7 @@ EXPORT(sysn32_call_table)
PTR sys_ni_syscall /* 6170, was get_kernel_syms */
PTR sys_ni_syscall /* was query_module */
PTR sys_quotactl
PTR compat_sys_nfsservctl
PTR sys_ni_syscall /* was nfsservctl */
PTR sys_ni_syscall /* res. for getpmsg */
PTR sys_ni_syscall /* 6175 for putpmsg */
PTR sys_ni_syscall /* res. for afs_syscall */

View File

@@ -392,7 +392,7 @@ sys_call_table:
PTR sys_getresuid
PTR sys_ni_syscall /* was query_module */
PTR sys_poll
PTR compat_sys_nfsservctl
PTR sys_ni_syscall /* was nfsservctl */
PTR sys_setresgid /* 4190 */
PTR sys_getresgid
PTR sys_prctl

View File

@@ -589,7 +589,7 @@ ENTRY(sys_call_table)
.long sys_ni_syscall /* vm86 */
.long sys_ni_syscall /* Old sys_query_module */
.long sys_poll
.long sys_nfsservctl
.long sys_ni_syscall /* was nfsservctl */
.long sys_setresgid16 /* 170 */
.long sys_getresgid16
.long sys_prctl

View File

@@ -259,7 +259,7 @@
ENTRY_SAME(ni_syscall) /* query_module */
ENTRY_SAME(poll)
/* structs contain pointers and an in_addr... */
ENTRY_COMP(nfsservctl)
ENTRY_SAME(ni_syscall) /* was nfsservctl */
ENTRY_SAME(setresgid) /* 170 */
ENTRY_SAME(getresgid)
ENTRY_SAME(prctl)

View File

@@ -387,7 +387,7 @@
#size-cells = <1>;
compatible = "cfi-flash";
reg = <0x0 0x0 0x02000000>;
bank-width = <1>;
bank-width = <2>;
device-width = <1>;
partition@0 {
label = "ramdisk";

View File

@@ -171,3 +171,4 @@ CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_FSL_CAAM=y

View File

@@ -185,3 +185,4 @@ CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_FSL_CAAM=y

View File

@@ -100,5 +100,8 @@ CONFIG_DEBUG_INFO=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_VIRQ_DEBUG=y
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_TALITOS=y
CONFIG_CRYPTO_DEV_FSL_CAAM=y

View File

@@ -139,6 +139,7 @@ CONFIG_SND=y
CONFIG_SND_INTEL8X0=y
# CONFIG_SND_PPC is not set
# CONFIG_SND_USB is not set
CONFIG_SND_SOC=y
CONFIG_HID_A4TECH=y
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y

View File

@@ -140,6 +140,7 @@ CONFIG_SND=y
CONFIG_SND_INTEL8X0=y
# CONFIG_SND_PPC is not set
# CONFIG_SND_USB is not set
CONFIG_SND_SOC=y
CONFIG_HID_A4TECH=y
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y

View File

@@ -171,7 +171,7 @@ SYSCALL_SPU(setresuid)
SYSCALL_SPU(getresuid)
SYSCALL(ni_syscall)
SYSCALL_SPU(poll)
COMPAT_SYS(nfsservctl)
SYSCALL(ni_syscall)
SYSCALL_SPU(setresgid)
SYSCALL_SPU(getresgid)
COMPAT_SYS_SPU(prctl)

View File

@@ -54,6 +54,7 @@
#define ODSR_CLEAR 0x1c00
#define LTLEECSR_ENABLE_ALL 0xFFC000FC
#define ESCSR_CLEAR 0x07120204
#define IECSR_CLEAR 0x80000000
#define RIO_PORT1_EDCSR 0x0640
#define RIO_PORT2_EDCSR 0x0680
@@ -1089,11 +1090,11 @@ static void port_error_handler(struct rio_mport *port, int offset)
if (offset == 0) {
out_be32((u32 *)(rio_regs_win + RIO_PORT1_EDCSR), 0);
out_be32((u32 *)(rio_regs_win + RIO_PORT1_IECSR), 0);
out_be32((u32 *)(rio_regs_win + RIO_PORT1_IECSR), IECSR_CLEAR);
out_be32((u32 *)(rio_regs_win + RIO_ESCSR), ESCSR_CLEAR);
} else {
out_be32((u32 *)(rio_regs_win + RIO_PORT2_EDCSR), 0);
out_be32((u32 *)(rio_regs_win + RIO_PORT2_IECSR), 0);
out_be32((u32 *)(rio_regs_win + RIO_PORT2_IECSR), IECSR_CLEAR);
out_be32((u32 *)(rio_regs_win + RIO_PORT2_ESCSR), ESCSR_CLEAR);
}
}

View File

@@ -665,12 +665,6 @@ ENTRY(sys32_poll_wrapper)
lgfr %r4,%r4 # long
jg sys_poll # branch to system call
ENTRY(compat_sys_nfsservctl_wrapper)
lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct compat_nfsctl_arg*
llgtr %r4,%r4 # union compat_nfsctl_res*
jg compat_sys_nfsservctl # branch to system call
ENTRY(sys32_setresgid16_wrapper)
llgfr %r2,%r2 # __kernel_old_gid_emu31_t
llgfr %r3,%r3 # __kernel_old_gid_emu31_t

View File

@@ -396,17 +396,19 @@ static __init void detect_machine_facilities(void)
static __init void rescue_initrd(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
unsigned long min_initrd_addr = (unsigned long) _end + (4UL << 20);
/*
* Move the initrd right behind the bss section in case it starts
* within the bss section. So we don't overwrite it when the bss
* section gets cleared.
* Just like in case of IPL from VM reader we make sure there is a
* gap of 4MB between end of kernel and start of initrd.
* That way we can also be sure that saving an NSS will succeed,
* which however only requires different segments.
*/
if (!INITRD_START || !INITRD_SIZE)
return;
if (INITRD_START >= (unsigned long) __bss_stop)
if (INITRD_START >= min_initrd_addr)
return;
memmove(__bss_stop, (void *) INITRD_START, INITRD_SIZE);
INITRD_START = (unsigned long) __bss_stop;
memmove((void *) min_initrd_addr, (void *) INITRD_START, INITRD_SIZE);
INITRD_START = min_initrd_addr;
#endif
}

View File

@@ -1220,7 +1220,7 @@ static int __init reipl_fcp_init(void)
/* sysfs: create fcp kset for mixing attr group and bin attrs */
reipl_fcp_kset = kset_create_and_add(IPL_FCP_STR, NULL,
&reipl_kset->kobj);
if (!reipl_kset) {
if (!reipl_fcp_kset) {
free_page((unsigned long) reipl_block_fcp);
return -ENOMEM;
}
@@ -1618,7 +1618,8 @@ static struct shutdown_action vmcmd_action = {SHUTDOWN_ACTION_VMCMD_STR,
static void stop_run(struct shutdown_trigger *trigger)
{
if (strcmp(trigger->name, ON_PANIC_STR) == 0)
if (strcmp(trigger->name, ON_PANIC_STR) == 0 ||
strcmp(trigger->name, ON_RESTART_STR) == 0)
disabled_wait((unsigned long) __builtin_return_address(0));
while (sigp(smp_processor_id(), sigp_stop) == sigp_busy)
cpu_relax();
@@ -1717,7 +1718,7 @@ static void do_panic(void)
/* on restart */
static struct shutdown_trigger on_restart_trigger = {ON_RESTART_STR,
&reipl_action};
&stop_action};
static ssize_t on_restart_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)

View File

@@ -177,7 +177,7 @@ SYSCALL(sys_getresuid16,sys_ni_syscall,sys32_getresuid16_wrapper) /* 165 old get
NI_SYSCALL /* for vm86 */
NI_SYSCALL /* old sys_query_module */
SYSCALL(sys_poll,sys_poll,sys32_poll_wrapper)
SYSCALL(sys_nfsservctl,sys_nfsservctl,compat_sys_nfsservctl_wrapper)
NI_SYSCALL /* old nfsservctl */
SYSCALL(sys_setresgid16,sys_ni_syscall,sys32_setresgid16_wrapper) /* 170 old setresgid16 syscall */
SYSCALL(sys_getresgid16,sys_ni_syscall,sys32_getresgid16_wrapper) /* old getresgid16 syscall */
SYSCALL(sys_prctl,sys_prctl,sys32_prctl_wrapper)

Some files were not shown because too many files have changed in this diff Show More