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722 Commits

Author SHA1 Message Date
Linus Torvalds
5611cc4572 Linux 3.2-rc4 2011-12-01 14:56:01 -08:00
Linus Torvalds
0a4ebed781 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (31 commits)
  ocfs2: avoid unaligned access to dqc_bitmap
  ocfs2: Use filemap_write_and_wait() instead of write_inode_now()
  ocfs2: honor O_(D)SYNC flag in fallocate
  ocfs2: Add a missing journal credit in ocfs2_link_credits() -v2
  ocfs2: send correct UUID to cleancache initialization
  ocfs2: Commit transactions in error cases -v2
  ocfs2: make direntry invalid when deleting it
  fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free
  ocfs2: Avoid livelock in ocfs2_readpage()
  ocfs2: serialize unaligned aio
  ocfs2: Implement llseek()
  ocfs2: Fix ocfs2_page_mkwrite()
  ocfs2: Add comment about orphan scanning
  ocfs2: Clean up messages in the fs
  ocfs2/cluster: Cluster up now includes network connections too
  ocfs2/cluster: Add new function o2net_fill_node_map()
  ocfs2/cluster: Fix output in file elapsed_time_in_ms
  ocfs2/dlm: dlmlock_remote() needs to account for remastery
  ocfs2/dlm: Take inflight reference count for remotely mastered resources too
  ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery()
  ...
2011-12-01 14:55:34 -08:00
Akinobu Mita
939255798a ocfs2: avoid unaligned access to dqc_bitmap
The dqc_bitmap field of struct ocfs2_local_disk_chunk is 32-bit aligned,
but not 64-bit aligned.  The dqc_bitmap is accessed by ocfs2_set_bit(),
ocfs2_clear_bit(), ocfs2_test_bit(), or ocfs2_find_next_zero_bit().  These
are wrapper macros for ext2_*_bit() which need to take an unsigned long
aligned address (though some architectures are able to handle unaligned
address correctly)

So some 64bit architectures may not be able to access the dqc_bitmap
correctly.

This avoids such unaligned access by using another wrapper functions for
ext2_*_bit().  The code is taken from fs/ext4/mballoc.c which also need to
handle unaligned bitmap access.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-12-01 14:39:32 -08:00
Linus Torvalds
3b120ab762 Merge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
  ARM: 7182/1: ARM cpu topology: fix warning
  ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
  ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
  ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation
  ARM: 7176/1: cpu_pm: register GIC PM notifier only once
  ARM: 7175/1: add subname parameter to mfp_set_groupg callers
  ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels
  ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations
  ARM: 7171/1: unwind: add unwind directives to bitops assembly macros
  ARM: 7170/2: fix compilation breakage in entry-armv.S
  ARM: 7168/1: use cache type functions for arch_get_unmapped_area
  ARM: perf: check that we have a platform device when reserving PMU
  ARM: 7166/1: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c
  ARM: 7165/2: PL330: Fix typo in _prepare_ccr()
  ARM: 7163/2: PL330: Only register usable channels
  ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds
  ARM: 7161/1: errata: no automatic store buffer drain
  ARM: perf: initialise used_mask for fake PMU during validation
  ARM: PMU: remove pmu_init declaration
  ARM: PMU: re-export release_pmu symbol to modules
2011-12-01 11:53:54 -08:00
Linus Torvalds
b930c26416 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix meta data raid-repair merge problem
  Btrfs: skip allocation attempt from empty cluster
  Btrfs: skip block groups without enough space for a cluster
  Btrfs: start search for new cluster at the beginning
  Btrfs: reset cluster's max_size when creating bitmap
  Btrfs: initialize new bitmaps' list
  Btrfs: fix oops when calling statfs on readonly device
  Btrfs: Don't error on resizing FS to same size
  Btrfs: fix deadlock on metadata reservation when evicting a inode
  Fix URL of btrfs-progs git repository in docs
  btrfs scrub: handle -ENOMEM from init_ipath()
2011-12-01 08:28:53 -08:00
Jan Schmidt
f4a8e6563e Btrfs: fix meta data raid-repair merge problem
Commit 4a54c8c16 introduced raid-repair, killing the individual
readpage_io_failed_hook entries from inode.c and disk-io.c. Commit
4bb31e92 introduced new readahead code, adding a readpage_io_failed_hook to
disk-io.c.

The raid-repair commit had logic to disable raid-repair, if
readpage_io_failed_hook is set. Thus, the readahead commit effectively
disabled raid-repair for meta data.

This commit changes the logic to always attempt raid-repair when needed and
call the readpage_io_failed_hook in case raid-repair fails. This is much
more straight forward and should have been like that from the beginning.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Reported-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-12-01 09:30:36 -05:00
Linus Torvalds
11d814a201 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: Fix RCU lockdep splats
  IB/ipoib: Prevent hung task or softlockup processing multicast response
  IB/qib: Fix over-scheduling of QSFP work
  RDMA/cxgb4: Fix retry with MPAv1 logic for MPAv2
  RDMA/cxgb4: Fix iw_cxgb4 count_rcqes() logic
  IB/qib: Don't use schedule_work()
2011-11-30 16:25:02 -08:00
Linus Torvalds
c290b2f2b0 Merge branch 'dt-for-linus' of git://sources.calxeda.com/kernel/linux
* 'dt-for-linus' of git://sources.calxeda.com/kernel/linux:
  of: Add Silicon Image vendor prefix
  of/irq: of_irq_init: add check for parent equal to child node
2011-11-30 16:24:43 -08:00
Linus Torvalds
d6e92d360c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: twl: fix twl4030 support for smps regulators
  regulator: fix use after free bug
  regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator
2011-11-30 16:24:24 -08:00
Linus Torvalds
cd5b49bce3 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits)
  ARM: ux500: update defconfig
  ARM: u300: update defconfig
  ARM: at91: enable additional boards in existing soc defconfig files
  ARM: at91: refresh soc defconfig files for 3.2
  ARM: at91: rename defconfig files appropriately
  ARM: OMAP2+: Fix Compilation error when omap_l3_noc built as module
  ARM: OMAP2+: Remove empty io.h
  ARM: OMAP2: select ARM_AMBA if OMAP3_EMU is defined
  ARM: OMAP: smartreflex: fix IRQ handling bug
  ARM: OMAP: PM: only register TWL with voltage layer when device is present
  ARM: OMAP: hwmod: Fix the addr space, irq, dma count APIs
  arm: mx28: fix bit operation in clock setting
  ARM: imx: export imx_ioremap
  ARM: imx/mm-imx3: conditionally compile i.MX31 and i.MX35 code
  ARM: mx5: Fix checkpatch warnings in cpu-imx5.c
  MAINTAINERS: Add missing directory
  ARM: imx: drop 'ARCH_MX31' and 'ARCH_MX35'
  ARM: imx6q: move clock register map to machine_desc.map_io
  ARM: pxa168/gplugd: add the correct SSP device
  ARM: Update mach-types to fix mxs build breakage
  ...
2011-11-30 16:23:59 -08:00
Vincent Guittot
4cbd6b167f ARM: 7182/1: ARM cpu topology: fix warning
kernel/sched.c:7354:2: warning: initialization from incompatible pointer type

Align cpu_coregroup_mask prototype interface with sched_domain_mask_f typedef
use int cpu instead of unsigned int cpu

Cc: <stable@vger.kernel.org>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-30 23:55:21 +00:00
Jon Medhurst (Tixy)
b5bed7fe80 ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
The SWP instruction is deprecated on ARMv6 and with ARMv7 it will be
UNDEFINED when CONFIG_SWP_EMULATE is selected. In this case, probing a
SWP instruction will cause an oops when the kprobes emulation code
executes an undefined instruction.

As the SWP instruction should be rare or non-existent in kernels for
ARMv6 and later, we can simply avoid these problems by not allowing
probing of these.

Reported-by: Leif Lindholm <leif.lindholm@arm.com>
Tested-by: Leif Lindholm <leif.lindholm@arm.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-30 23:54:54 +00:00
Jon Medhurst (Tixy)
14383c295a ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
There is a kprobes testcase for the instruction "strd r2, [r3], r4".
This has unpredictable behaviour as it uses r3 for register writeback
addressing and also stores it to memory.

On a cortex A9, this testcase would fail because the instruction writes
the updated value of r3 to memory, whereas the kprobes emulation code
writes the original value.

Fix this by changing testcase to used r5 instead of r3.

Reported-by: Leif Lindholm <leif.lindholm@arm.com>
Tested-by: Leif Lindholm <leif.lindholm@arm.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-30 23:54:53 +00:00
Alexandre Oliva
be064d1139 Btrfs: skip allocation attempt from empty cluster
If we don't have a cluster, don't bother trying to allocate from it,
jumping right away to the attempt to allocate a new cluster.

Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-30 13:43:00 -05:00
Alexandre Oliva
425d83156c Btrfs: skip block groups without enough space for a cluster
We test whether a block group has enough free space to hold the
requested block, but when we're doing clustered allocation, we can
save some cycles by testing whether it has enough room for the cluster
upfront, otherwise we end up attempting to set up a cluster and
failing.  Only in the NO_EMPTY_SIZE loop do we attempt an unclustered
allocation, and by then we'll have zeroed the cluster size, so this
patch won't stop us from using the block group as a last resort.

Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-30 13:43:00 -05:00
Alexandre Oliva
1b22bad779 Btrfs: start search for new cluster at the beginning
Instead of starting at zero (offset is always zero), request a cluster
starting at search_start, that denotes the beginning of the current
block group.

Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-30 13:43:00 -05:00
Alexandre Oliva
b78d09bceb Btrfs: reset cluster's max_size when creating bitmap
The field that indicates the size of the largest contiguous chunk of
free space in the cluster is not initialized when setting up bitmaps,
it's only increased when we find a larger contiguous chunk.  We end up
retaining a larger value than appropriate for highly-fragmented
clusters, which may cause pointless searches for large contiguous
groups, and even cause clusters that do not meet the density
requirements to be set up.

Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-30 13:43:00 -05:00
Alexandre Oliva
f2d0f6765d Btrfs: initialize new bitmaps' list
We're failing to create clusters with bitmaps because
setup_cluster_no_bitmap checks that the list is empty before inserting
the bitmap entry in the list for setup_cluster_bitmap, but the list
field is only initialized when it is restored from the on-disk free
space cache, or when it is written out to disk.

Besides a potential race condition due to the multiple use of the list
field, filesystem performance severely degrades over time: as we use
up all non-bitmap free extents, the try-to-set-up-cluster dance is
done at every metadata block allocation.  For every block group, we
fail to set up a cluster, and after failing on them all up to twice,
we fall back to the much slower unclustered allocation.

To make matters worse, before the unclustered allocation, we try to
create new block groups until we reach the 1% threshold, which
introduces additional bitmaps and thus block groups that we'll iterate
over at each metadata block request.
2011-11-30 18:46:06 +01:00
Li Zefan
b772a86ea6 Btrfs: fix oops when calling statfs on readonly device
To reproduce this bug:

  # dd if=/dev/zero of=img bs=1M count=256
  # mkfs.btrfs img
  # losetup -r /dev/loop1 img
  # mount /dev/loop1 /mnt
  OOPS!!

It triggered BUG_ON(!nr_devices) in btrfs_calc_avail_data_space().

To fix this, instead of checking write-only devices, we check all open
deivces:

  # df -h /dev/loop1
  Filesystem            Size  Used Avail Use% Mounted on
  /dev/loop1            250M   28K  238M   1% /mnt

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
2011-11-30 18:46:05 +01:00
Mike Fleetwood
ece7d20e8b Btrfs: Don't error on resizing FS to same size
It seems overly harsh to fail a resize of a btrfs file system to the
same size when a shrink or grow would succeed.  User app GParted trips
over this error.  Allow it by bypassing the shrink or grow operation.

Signed-off-by: Mike Fleetwood <mike.fleetwood@googlemail.com>
2011-11-30 18:46:04 +01:00
Miao Xie
aa38a711a8 Btrfs: fix deadlock on metadata reservation when evicting a inode
When I ran the xfstests, I found the test tasks was blocked on meta-data
reservation.

By debugging, I found the reason of this bug:
   start transaction
        |
	v
   reserve meta-data space
	|
	v
   flush delay allocation -> iput inode -> evict inode
	^					|
	|					v
   wait for delay allocation flush <- reserve meta-data space

And besides that, the flush on evicting inode will block the thread, which
is reclaiming the memory, and make oom happen easily.

Fix this bug by skipping the flush step when evicting inode.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
2011-11-30 18:46:03 +01:00
Arnd Hannemann
b52f75a595 Fix URL of btrfs-progs git repository in docs
The location of the btrfs-progs repository has been changed.
	This patch updates the documentation accordingly.

Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
2011-11-30 18:46:02 +01:00
Dan Carpenter
26bdef541d btrfs scrub: handle -ENOMEM from init_ipath()
init_ipath() can return an ERR_PTR(-ENOMEM).

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
2011-11-30 18:46:01 +01:00
Roland Dreier
a493f1a24a Merge branches 'cxgb4', 'ipoib', 'misc' and 'qib' into for-next 2011-11-29 18:01:53 -08:00
Linus Torvalds
8cd7920370 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: Update comments describing device power management callbacks
  PM / Sleep: Update documentation related to system wakeup
  PM / Runtime: Make documentation follow the new behavior of irq_safe
  PM / Sleep: Correct inaccurate information in devices.txt
  PM / Domains: Document how PM domains are used by the PM core
  PM / Hibernate: Do not leak memory in error/test code paths
2011-11-29 14:43:22 -08:00
Eric Dumazet
580da35a31 IB: Fix RCU lockdep splats
Commit f2c31e32b3 ("net: fix NULL dereferences in check_peer_redir()")
forgot to take care of infiniband uses of dst neighbours.

Many thanks to Marc Aurele who provided a nice bug report and feedback.

Reported-by: Marc Aurele La France <tsi@ualberta.ca>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: <stable@kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-11-29 13:37:11 -08:00
Mike Marciniszyn
3874397c0b IB/ipoib: Prevent hung task or softlockup processing multicast response
This following can occur with ipoib when processing a multicast reponse:

    BUG: soft lockup - CPU#0 stuck for 67s! [ib_mad1:982]
    Modules linked in: ...
    CPU 0:
    Modules linked in: ...
    Pid: 982, comm: ib_mad1 Not tainted 2.6.32-131.0.15.el6.x86_64 #1 ProLiant DL160 G5
    RIP: 0010:[<ffffffff814ddb27>]  [<ffffffff814ddb27>] _spin_unlock_irqrestore+0x17/0x20
    RSP: 0018:ffff8802119ed860  EFLAGS: 00000246
    0000000000000004 RBX: ffff8802119ed860 RCX: 000000000000a299
    RDX: ffff88021086c700 RSI: 0000000000000246 RDI: 0000000000000246
    RBP: ffffffff8100bc8e R08: ffff880210ac229c R09: 0000000000000000
    R10: ffff88021278aab8 R11: 0000000000000000 R12: ffff8802119ed860
    R13: ffffffff8100be6e R14: 0000000000000001 R15: 0000000000000003
    FS:  0000000000000000(0000) GS:ffff880028200000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
    CR2: 00000000006d4840 CR3: 0000000209aa5000 CR4: 00000000000406f0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Call Trace:
    [<ffffffffa032c247>] ? ipoib_mcast_send+0x157/0x480 [ib_ipoib]
    [<ffffffff8100bc8e>] ? apic_timer_interrupt+0xe/0x20
    [<ffffffff8100bc8e>] ? apic_timer_interrupt+0xe/0x20
    [<ffffffffa03283d4>] ? ipoib_path_lookup+0x124/0x2d0 [ib_ipoib]
    [<ffffffffa03286fc>] ? ipoib_start_xmit+0x17c/0x430 [ib_ipoib]
    [<ffffffff8141e758>] ? dev_hard_start_xmit+0x2c8/0x3f0
    [<ffffffff81439d0a>] ? sch_direct_xmit+0x15a/0x1c0
    [<ffffffff81423098>] ? dev_queue_xmit+0x388/0x4d0
    [<ffffffffa032d6b7>] ? ipoib_mcast_join_finish+0x2c7/0x510 [ib_ipoib]
    [<ffffffffa032dab8>] ? ipoib_mcast_sendonly_join_complete+0x1b8/0x1f0 [ib_ipoib]
    [<ffffffffa02a0946>] ? mcast_work_handler+0x1a6/0x710 [ib_sa]
    [<ffffffffa015f01e>] ? ib_send_mad+0xfe/0x3c0 [ib_mad]
    [<ffffffffa00f6c93>] ? ib_get_cached_lmc+0xa3/0xb0 [ib_core]
    [<ffffffffa02a0f9b>] ? join_handler+0xeb/0x200 [ib_sa]
    [<ffffffffa029e4fc>] ? ib_sa_mcmember_rec_callback+0x5c/0xa0 [ib_sa]
    [<ffffffffa029e79c>] ? recv_handler+0x3c/0x70 [ib_sa]
    [<ffffffffa01603a4>] ? ib_mad_completion_handler+0x844/0x9d0 [ib_mad]
    [<ffffffffa015fb60>] ? ib_mad_completion_handler+0x0/0x9d0 [ib_mad]
    [<ffffffff81088830>] ? worker_thread+0x170/0x2a0
    [<ffffffff8108e160>] ? autoremove_wake_function+0x0/0x40
    [<ffffffff810886c0>] ? worker_thread+0x0/0x2a0
    [<ffffffff8108ddf6>] ? kthread+0x96/0xa0
    [<ffffffff8100c1ca>] ? child_rip+0xa/0x20

Coinciding with stack trace is the following message:

    ib0: ib_address_create failed

The code below in ipoib_mcast_join_finish() will note the above
failure in the address handle but otherwise continue:

                ah = ipoib_create_ah(dev, priv->pd, &av);
                if (!ah) {
                        ipoib_warn(priv, "ib_address_create failed\n");
                } else {

The while loop at the bottom of ipoib_mcast_join_finish() will attempt
to send queued multicast packets in mcast->pkt_queue and eventually
end up in ipoib_mcast_send():

        if (!mcast->ah) {
                if (skb_queue_len(&mcast->pkt_queue) < IPOIB_MAX_MCAST_QUEUE)
                        skb_queue_tail(&mcast->pkt_queue, skb);
                else {
                        ++dev->stats.tx_dropped;
                        dev_kfree_skb_any(skb);
                }

My read is that the code will requeue the packet and return to the
ipoib_mcast_join_finish() while loop and the stage is set for the
"hung" task diagnostic as the while loop never sees a non-NULL ah, and
will do nothing to resolve.

There are GFP_ATOMIC allocates in the provider routines, so this is
possible and should be dealt with.

The test that induced the failure is associated with a host SM on the
same server during a shutdown.

This patch causes ipoib_mcast_join_finish() to exit with an error
which will flush the queued mcast packets.  Nothing is done to unwind
the QP attached state so that subsequent sends from above will retry
the join.

Reviewed-by: Ram Vepa <ram.vepa@qlogic.com>
Reviewed-by: Gary Leshner <gary.leshner@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-11-29 13:20:02 -08:00
Linus Torvalds
57db53b074 Merge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
* 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  slub: avoid potential NULL dereference or corruption
  slub: use irqsafe_cpu_cmpxchg for put_cpu_partial
  slub: move discard_slab out of node lock
  slub: use correct parameter to add a page to partial list tail
2011-11-29 11:13:22 -08:00
Linus Torvalds
883381d9f1 Merge branch 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix racy use-after-free in ext4_end_io_dio()
2011-11-29 08:59:12 -08:00
Arnd Bergmann
98014be39b Merge branch 'defconfigs-for-arnd' of git://git.linaro.org/people/triad/linux-stericsson into fixes 2011-11-29 14:50:17 +00:00
Pawel Moll
e43fce1408 of: Add Silicon Image vendor prefix
"sil" is the most commonly used abbreviation for Silicon
Image products.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2011-11-29 08:24:20 -06:00
Rob Herring
d7fb6d0adb of/irq: of_irq_init: add check for parent equal to child node
With the revert of "of/irq: of_irq_find_parent: check for parent equal to
child" (dc93728084), we need another way to handle parent node equal
to the child node. This can simply be handled in of_irq_init by checking
for this condition.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Pawel Moll <pawel.moll@arm.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
2011-11-29 08:22:40 -06:00
Linus Walleij
6e2a587eb9 ARM: ux500: update defconfig
This updates the Ux500 defconfig with the new drivers for HWSEM
and AB5500 core that were merged in the 3.2 cycle.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-11-29 10:34:51 +01:00
Linus Walleij
58aa4ebe9c ARM: u300: update defconfig
This updates the U300 defconfig to support some new drivers like
FSMC, sets it to use the MMC clock gating scheme, and removes
some stale config options.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-11-29 10:34:45 +01:00
Linus Torvalds
0e500b6d23 Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: convert drivers/hwmon/* to use module_platform_driver()
  hwmon: Remove redundant spi driver bus initialization
2011-11-28 19:28:32 -08:00
Linus Torvalds
8748dfae37 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  efivars: add missing parameter to efi_pstore_read()
2011-11-28 16:37:35 -08:00
Christoph Fritz
eee628da2e efivars: add missing parameter to efi_pstore_read()
In the case where CONFIG_PSTORE=n, the function efi_pstore_read() doesn't
have the correct list of parameters. This patch provides a definition
of efi_pstore_read() with 'char **buf' added to fix this warning:
"drivers/firmware/efivars.c:609: warning: initialization from".

problem introduced in commit f6f8285132

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2011-11-28 15:33:32 -08:00
Linus Torvalds
a34815b96f Merge branch 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
* 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup_freezer: fix freezing groups with stopped tasks
2011-11-28 13:55:59 -08:00
Linus Torvalds
9b5a4d4f65 Merge branch 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
  percpu: explain why per_cpu_ptr_to_phys() is more complicated than necessary
  percpu: fix chunk range calculation
  percpu: rename pcpu_mem_alloc to pcpu_mem_zalloc
2011-11-28 13:49:43 -08:00
Rafael J. Wysocki
f7bc83d87d PM: Update comments describing device power management callbacks
The comments describing device power management callbacks in
include/pm.h are outdated and somewhat confusing, so make them
reflect the reality more accurately.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-28 22:14:55 +01:00
Rafael J. Wysocki
fafba48d4d PM / Sleep: Update documentation related to system wakeup
The system wakeup section of Documentation/power/devices.txt is
outdated, so make it agree with the current code.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-28 22:14:45 +01:00
Rafael J. Wysocki
9075659219 PM / Runtime: Make documentation follow the new behavior of irq_safe
The runtime PM core code behavior related to the power.irq_safe
device flag has changed recently and the documentation should be
modified to reflect it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-28 22:14:34 +01:00
Rafael J. Wysocki
fa8ce72393 PM / Sleep: Correct inaccurate information in devices.txt
The documentation file Documentation/power/devices.txt contains some
information that isn't correct any more due to code modifications
made after that file had been created (or updated last time).  Fix
this.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-28 22:14:27 +01:00
Rafael J. Wysocki
5841eb6402 PM / Domains: Document how PM domains are used by the PM core
The current power management documentation in Documentation/power/
either doesn't cover PM domains at all, or gives inaccurate
information about them, so update the relevant files in there to
follow the code.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-28 22:14:19 +01:00
Mike Marciniszyn
8ee887d74b IB/qib: Fix over-scheduling of QSFP work
Don't over-schedule QSFP work on driver initialization.  It could end
up being run simultaneously on two different CPUs resulting in bad
EEPROM reads.  In combination with setting the physical IB link state
prior to the IBC being brought out of reset, this can cause the link
state machine to start training early with wrong settings.

Signed-off-by: Mitko Haralanov <mitko@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-11-28 12:17:33 -08:00
Kumar Sanghvi
01b225e18f RDMA/cxgb4: Fix retry with MPAv1 logic for MPAv2
Fix logic so that we don't retry with MPAv1 once we have done that
already.  Otherwise, we end up retrying with MPAv1 even when its not
needed on getting peer aborts - and this could lead to kernel panic.

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-11-28 11:58:07 -08:00
Jonathan Lallinger
c34c97ad8c RDMA/cxgb4: Fix iw_cxgb4 count_rcqes() logic
Fix another place in the code where logic dealing with the t4_cqe was
using the wrong QID.  This fixes the counting logic so that it tests
against the SQ QID instead of the RQ QID when counting RCQES.

Signed-off by: Jonathan Lallinger <jonathan@ogc.us>
Signed-off by: Steve Wise <swise@ogc.us>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-11-28 11:53:05 -08:00
Linus Torvalds
cb3599926e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  pstore: pass allocated memory region back to caller
2011-11-28 11:27:57 -08:00
Tero Kristo
ba305e31e8 regulator: twl: fix twl4030 support for smps regulators
SMPS regulator voltage control differs from the one of the LDO ones.
Current TWL code was using LDO regulator ops for controlling the SMPS
regulators, which fails. This was fixed fixed by adding separate
regulator type which uses correct logic and calculations for the
voltage levels.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-11-28 18:58:31 +00:00
Linus Torvalds
4244cb482e Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/exynos: fixed wrong err ptr usage and destroy call in exeception
  drm/exynos: Add disable of manager
  drm/exynos: include linux/module.h
  drm/exynos: fix vblank bug.
  drm/exynos: changed buffer structure.
  drm/exynos: removed unnecessary variable.
  drm/exynos: use gem create function generically
  drm/exynos: checked for null pointer
  drm/exynos: added crtc dpms for disable crtc
  drm/exynos: removed meaningless parameter from fbdev update
  drm/exynos: restored kernel_fb_list when reiniting fb_helper
  drm/exynos: changed exynos_drm_display to exynos_drm_display_ops
  drm/exynos: added manager object to connector
  drm/exynos: fixed converting between display mode and timing
  drm/exynos: fixed connector flag with hpd and interlace scan for hdmi
  drm/exynos: added kms poll for handling hpd event
2011-11-28 09:05:23 -08:00
Linus Torvalds
f02877ce3c Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: Ensure we return EAGAIN in xs_nospace if congestion is cleared
2011-11-28 08:59:11 -08:00
Linus Torvalds
3c512b193a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (28 commits)
  ALSA: hda - Fix jack-detection control of VT1708
  ALSA: hda - cut and paste typo in cs420x_models[]
  ALSA: hda/realtek - Minor cleanup
  ALSA: hda/realtek - Fix missing inits of item indices for auto-mic
  ALSA: hda - Fix invalid pin and GPIO for Apple laptops with CS codecs
  ALSA: hda - Check subdevice mask in snd_hda_check_board_codec_sid_config()
  ALSA: hda - fail ELD reading early
  ALSA: lx6464es - fix device communication via command bus
  ALSA: lx6464es - command buffer API cleanup
  ALSA: hda - repoll ELD content for multiple times
  ALSA: hdspm - Fix PCI ID for PCIe RME MADI cards
  ASoC: Ensure WM8731 register cache is synced when resuming from disabled
  ALSA: cs5535 - Fix an endianness conversion
  ASoC: cs4271: Fix wrong mask parameter in some snd_soc_update_bits calls
  ASoC: wm_hubs: fix DB_RANGE size
  ASoC: wm9090: fix DB_RANGE size
  ASoC: wm8993: fix DB_RANGE size
  ASoC: wm8962: fix DB_RANGE size
  ASoC: sgtl5000: fix DB_RANGE size
  ASoC: rt5631: fix DB_RANGE size
  ...
2011-11-28 08:53:36 -08:00
Linus Torvalds
c28800a9c3 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  hrtimer: Fix extra wakeups from __remove_hrtimer()
  timekeeping: add arch_offset hook to ktime_get functions
  clocksource: Avoid selecting mult values that might overflow when adjusted
  time: Improve documentation of timekeeeping_adjust()
2011-11-28 08:43:52 -08:00
Linus Torvalds
ce8f55c2a0 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Don't allow per cpu interrupts to be suspended
2011-11-28 08:43:32 -08:00
Edward Donovan
52553ddffa genirq: fix regression in irqfixup, irqpoll
Commit fa27271bc8d2("genirq: Fixup poll handling") introduced a
regression that broke irqfixup/irqpoll for some hardware configurations.

Amidst reorganizing 'try_one_irq', that patch removed a test that
checked for 'action->handler' returning IRQ_HANDLED, before acting on
the interrupt.  Restoring this test back returns the functionality lost
since 2.6.39.  In the current set of tests, after 'action' is set, it
must precede '!action->next' to take effect.

With this and my previous patch to irq/spurious.c, c75d720fca, all
IRQ regressions that I have encountered are fixed.

Signed-off-by: Edward Donovan <edward.donovan@numble.net>
Reported-and-tested-by: Rogério Brito <rbrito@ime.usp.br>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org (2.6.39+)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-28 08:43:09 -08:00
Lothar Waßmann
58fb5cf5d1 regulator: fix use after free bug
This is caused by dereferencing 'rdev' after device_unregister() in
the regulator_unregister() function.  'rdev' is freed by
device_unregister(), so it must not be dereferenced after this call.

[Edited commit message for legibility -- broonie]

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-28 14:44:38 +00:00
Dave Airlie
b7b996da27 Merge branch 'exynos-drm' of git://git.infradead.org/users/kmpark/linux-samsung into drm-fixes
* 'exynos-drm' of git://git.infradead.org/users/kmpark/linux-samsung:
  drm/exynos: fixed wrong err ptr usage and destroy call in exeception
  drm/exynos: Add disable of manager
  drm/exynos: include linux/module.h
  drm/exynos: fix vblank bug.
  drm/exynos: changed buffer structure.
  drm/exynos: removed unnecessary variable.
  drm/exynos: use gem create function generically
  drm/exynos: checked for null pointer
  drm/exynos: added crtc dpms for disable crtc
  drm/exynos: removed meaningless parameter from fbdev update
  drm/exynos: restored kernel_fb_list when reiniting fb_helper
  drm/exynos: changed exynos_drm_display to exynos_drm_display_ops
  drm/exynos: added manager object to connector
  drm/exynos: fixed converting between display mode and timing
  drm/exynos: fixed connector flag with hpd and interlace scan for hdmi
  drm/exynos: added kms poll for handling hpd event
2011-11-28 14:17:09 +00:00
Axel Lin
d4d6373c11 regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator
In current implementation, the pointer ri is not NULL if no id is matched.
Fix it by checking i == ARRAY_SIZE(aat2870_regulators) if no id is matched.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-11-28 11:48:15 +00:00
Linus Torvalds
401d0069cb Merge branch 'fbdev-for-linus' of git://github.com/schandinat/linux-2.6
* 'fbdev-for-linus' of git://github.com/schandinat/linux-2.6:
  viafb: correct sync polarity for OLPC DCON
  video:da8xx-fb: Disable and reset sequence on version2 of LCDC
  OMAPDSS: DISPC: skip scaling calculations when not scaling
  OMAPFB: fix compilation warnings due to missing include
  OMAPDSS: HDMI: fix returned HDMI pixel clock
2011-11-27 12:05:56 -08:00
Rafael J. Wysocki
06718f1511 ath9k: Revert change that broke AR928X on Acer Ferrari One
Revert a hunk in drivers/net/wireless/ath/ath9k/hw.c introduced by
commit 2577c6e8f2 ("ath9k_hw: Add support for AR946/8x chipsets") that
caused a nasty regression to appear on my Acer Ferrari One (the box
locks up entirely at random times after the wireless has been started
without any way to get debug information out of it).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-27 11:47:34 -08:00
Takashi Iwai
f339240dd8 Merge branch 'fix/hda' into for-linus 2011-11-27 17:59:07 +01:00
Takashi Iwai
187d333edc ALSA: hda - Fix jack-detection control of VT1708
VT1708 has no support for unsolicited events per jack-plug, the driver
implements the workq for polling the jack-detection.  The mixer element
"Jack Detect" was supposed to control this behavior on/off, but this
doesn't work properly as is now.  The workq is always started and the
HP automute is always enabled.

This patch fixes the jack-detect control behavior by triggering / stopping
the work appropriately at the state change.  Also the work checks the
internal state to continue scheduling or not.

Cc: <stable@kernel.org> [v3.1]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-27 17:56:17 +01:00
Dan Carpenter
92bb43e6aa ALSA: hda - cut and paste typo in cs420x_models[]
The CS420X_IMAC27 was copied from the line before but CS420X_APPLE
was clearly intented.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-27 17:56:07 +01:00
Will Deacon
fe41db7b3a ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation
Commit 4294f8baa ("ARM: gic: add irq_domain support") defines irq_start
as irq_start = (irq_start & ~31) + 16; On a platform with a GIC and a
CPU without PPIs, this results in irq_start being off by 16.

This patch fixes gic_init so that we only carve out a PPI space when
PPIs exist for the GIC being initialised.

Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-26 21:58:55 +00:00
Marc Zyngier
abdd7b91da ARM: 7176/1: cpu_pm: register GIC PM notifier only once
When multiple GICs exist on a platform (RealView PB1176/11MP),
we must make sure the PM notifier block is only registered
once, otherwise we end up corrupting the PM notifier list.

The fix is to only register the notifier when initializing
the first GIC, as the power management functions seem
to iterate over all the registered GICs.

Tested on PB11MP and PB1176.

Reported-by: Will Deacon <will.deacon@arm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Cc: Colin Cross <ccross@android.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-26 21:58:54 +00:00
Axel Lin
97371fa99c ARM: 7175/1: add subname parameter to mfp_set_groupg callers
commit 798681bf "ARM: 7158/1: add new MFP implement for NUC900"
adds subname parameter for mfp_set_groupg.

Thus add subname parameter to the callers.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Wan Zongshun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-26 21:58:54 +00:00
Jon Medhurst
46589e2922 ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels
When compiling kprobes-test-thumb.c an error like below may occur:

/tmp/ccKcuJcG.s:19179: Error: offset out of range

This is caused by the compiler underestimating the size of the inline
assembler instructions containing ".space 0x1000" and failing to spill
the literal pool in time to prevent the generation of PC relative load
instruction with invalid offsets.

The fix implemented by this patch is to replace a single large .space
directive by a number of 4 byte .space's. This requires splitting the
macros which generate test cases for branch instructions into two forms:
one with, and one without support for inserting extra code between
branch and target.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Jon Medhurst <jon.medhurst@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-26 21:58:53 +00:00
Sumit Bhattacharya
ea2e7057c0 ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations
dma_alloc_coherent wants to split pages after allocation in order to
reduce the memory footprint. This does not work well with GFP_COMP
pages, so drop this flag before allocation.

This patch is ported from arch/avr32
(commit 3611553ef9).

[swarren: s/HUGETLB_PAGE/HUGETLBFS/ in comment, minor comment cleanup]

Signed-off-by: Sumit Bhattacharya <sumitb@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-26 21:58:53 +00:00
Will Deacon
c36ef4b176 ARM: 7171/1: unwind: add unwind directives to bitops assembly macros
The bitops functions (e.g. _test_and_set_bit) on ARM do not have unwind
annotations and therefore the kernel cannot backtrace out of them on a
fatal error (for example, NULL pointer dereference).

This patch annotates the bitops assembly macros with UNWIND annotations
so that we can produce a meaningful backtrace on error. Callers of the
macros are modified to pass their function name as a macro parameter,
enforcing that the macros are used as standalone function implementations.

Acked-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>
2011-11-26 21:58:53 +00:00
Guennadi Liakhovetski
c89cefed35 ARM: 7170/2: fix compilation breakage in entry-armv.S
Fix compilation failure, when Thumb support is not enabled:

arch/arm/kernel/entry-armv.S: Assembler messages:
arch/arm/kernel/entry-armv.S:501: Error: backward ref to unknown label "2:"
arch/arm/kernel/entry-armv.S:502: Error: backward ref to unknown label "3:"
make[2]: *** [arch/arm/kernel/entry-armv.o] Error 1

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Reviewed-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-26 21:58:52 +00:00
Rob Herring
41dfaa934c ARM: 7168/1: use cache type functions for arch_get_unmapped_area
There are already cache type decoding functions, so use those instead
of custom decode code which only works for ARMv6.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-26 21:58:52 +00:00
Andy Whitcroft
aaa0b4f007 iio: iio_event_getfd -- fix ev_int build failure
Fix build failure in staging iio driver:

.../drivers/staging/iio/industrialio-core.c: In function 'iio_event_getfd':
.../drivers/staging/iio/industrialio-core.c:262:32: error:
			'ev_int' undeclared (first use in this function)

Also convert the rest of the function to use the new variable.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-26 13:23:49 -08:00
Linus Torvalds
ac03564f90 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/44x: Add mtd ndfc to the ppx44x defconfig
  powerpc: Fix compiliation with hugetlbfs enabled
  arch/powerpc/sysdev/ehv_pic.c: add missing kfree
  powerpc/fsl-lbc: Fix for fsl_upm
  drivers/edac/mpc85xx_edac.c: fix memory controller compatible for edac
  powerpc/qe: Fixup QE_General4 errata
  powerpc/85xx: Fix compile error on p3060_qds.c
  powerpc/p3060qds: Fix select of 'MPC8xxx_GPIO'
  powerpc/p1023: set IRQ[4:6,11] to active-high level sensitive for PCIe
2011-11-26 09:53:32 -08:00
Axel Lin
25a236a5db hwmon: convert drivers/hwmon/* to use module_platform_driver()
This patch converts the drivers in drivers/hwmon/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: Donggeun Kim <dg77.kim@samsung.com>
Cc: Simon Guinot <sguinot@lacie.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: J Keerthy <j-keerthy@ti.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-11-26 09:48:20 -08:00
Linus Torvalds
dd38d29838 Merge git://github.com/herbertx/crypto
* git://github.com/herbertx/crypto:
  crypto: mv_cesa - fix hashing of chunks > 1920 bytes
2011-11-25 21:55:07 -08:00
Linus Torvalds
9c3973966f Merge branch 'gpio-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson
* 'gpio-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  gpio: pca953x: Staticise pca953x_get_altdata()
2011-11-25 21:52:55 -08:00
Lars-Peter Clausen
b52fabca36 hwmon: Remove redundant spi driver bus initialization
In ancient times it was necessary to manually initialize the bus field of an
spi_driver to spi_bus_type. These days this is done in spi_register_driver(),
so we can drop the manual assignment.

The patch was generated using the following coccinelle semantic patch:
// <smpl>
@@
identifier _driver;
@@
struct spi_driver _driver = {
	.driver = {
-		.bus = &spi_bus_type,
	},
};
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: lm-sensors@lm-sensors.org
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-11-25 07:48:16 -08:00
Tejun Heo
4c81f045c0 ext4: fix racy use-after-free in ext4_end_io_dio()
ext4_end_io_dio() queues io_end->work and then clears iocb->private;
however, io_end->work calls aio_complete() which frees the iocb
object.  If that slab object gets reallocated, then ext4_end_io_dio()
can end up clearing someone else's iocb->private, this use-after-free
can cause a leak of a struct ext4_io_end_t structure.

Detected and tested with slab poisoning.

[ Note: Can also reproduce using 12 fio's against 12 file systems with the
  following configuration file:

  [global]
  direct=1
  ioengine=libaio
  iodepth=1
  bs=4k
  ba=4k
  size=128m

  [create]
  filename=${TESTDIR}
  rw=write

  -- tytso ]

Google-Bug-Id: 5354697
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Kent Overstreet <koverstreet@google.com>
Tested-by: Kent Overstreet <koverstreet@google.com>
Cc: stable@kernel.org
2011-11-24 19:22:24 -05:00
Tony Breeds
49e44064d7 powerpc/44x: Add mtd ndfc to the ppx44x defconfig
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Acked-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-25 10:06:00 +11:00
Kumar Gala
13020be8be powerpc: Fix compiliation with hugetlbfs enabled
arch/powerpc/mm/hugetlbpage.c: In function 'reserve_hugetlb_gpages':
arch/powerpc/mm/hugetlbpage.c:312:2: error: implicit declaration of function 'parse_args'

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-25 10:05:59 +11:00
Michal Hocko
884a45d964 cgroup_freezer: fix freezing groups with stopped tasks
2d3cbf8b (cgroup_freezer: update_freezer_state() does incorrect state
transitions) removed is_task_frozen_enough and replaced it with a simple
frozen call. This, however, breaks freezing for a group with stopped tasks
because those cannot be frozen and so the group remains in CGROUP_FREEZING
state (update_if_frozen doesn't count stopped tasks) and never reaches
CGROUP_FROZEN.

Let's add is_task_frozen_enough back and use it at the original locations
(update_if_frozen and try_to_freeze_cgroup). Semantically we consider
stopped tasks as frozen enough so we should consider both cases when
testing frozen tasks.

Testcase:
mkdir /dev/freezer
mount -t cgroup -o freezer none /dev/freezer
mkdir /dev/freezer/foo
sleep 1h &
pid=$!
kill -STOP $pid
echo $pid > /dev/freezer/foo/tasks
echo FROZEN > /dev/freezer/foo/freezer.state
while true
do
	cat /dev/freezer/foo/freezer.state
	[ "`cat /dev/freezer/foo/freezer.state`" = "FROZEN" ] && break
	sleep 1
done
echo OK

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Tomasz Buchert <tomasz.buchert@inria.fr>
Cc: Paul Menage <paul@paulmenage.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: Tejun Heo <htejun@gmail.com>
2011-11-24 11:58:22 -08:00
Arnd Bergmann
55135dfbf3 Merge branch 'fixes-dss' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes 2011-11-24 15:58:01 +00:00
Arnd Bergmann
b70c420782 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes 2011-11-24 15:56:03 +00:00
Arnd Bergmann
597b97cab6 Merge branch 'at91/defconfig' into fixes 2011-11-24 14:58:59 +00:00
Jean-Christophe PLAGNIOL-VILLARD
db5509f0c2 ARM: at91: enable additional boards in existing soc defconfig files
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-11-24 14:57:55 +00:00
Jean-Christophe PLAGNIOL-VILLARD
9f939adeb2 ARM: at91: refresh soc defconfig files for 3.2
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-11-24 14:57:54 +00:00
Jean-Christophe PLAGNIOL-VILLARD
85d096db67 ARM: at91: rename defconfig files appropriately
rename all Atmel reference board as soc defconfig

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-11-24 14:57:54 +00:00
Arnd Bergmann
626e3677a2 Merge branch 'mxs/for-arnd' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes 2011-11-24 14:51:42 +00:00
Julia Lawall
e3854b6e25 arch/powerpc/sysdev/ehv_pic.c: add missing kfree
At this point, ehv_pic has been allocated but not stored anywhere, 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>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24 02:01:24 -06:00
Alexandre Rusev
7145cf1209 powerpc/fsl-lbc: Fix for fsl_upm
If Freescale LBC driver fails to initialise itself from device tree, then
internal structure is freed only but not NULL-fied.  As result functions
fsl_lbc_find() after checking the structure is not NULL are trying to
access device registers.

Signed-off-by: Alexandre Rusev <arusev@dev.rtsoft.ru>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24 02:00:42 -06:00
Shaohui Xie
86f9a43305 drivers/edac/mpc85xx_edac.c: fix memory controller compatible for edac
compatible in dts has been changed, so the driver needs to be updated
accordingly.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24 01:59:38 -06:00
Joakim Tjernlund
ae5f8c1982 powerpc/qe: Fixup QE_General4 errata
QE_General4 should only round up the divisor iff divisor is > 3.
Rounding up lower divisors makes the error too big, causing USB
on MPC832x to fail.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24 01:28:42 -06:00
Eric Dumazet
bc6697d8a5 slub: avoid potential NULL dereference or corruption
show_slab_objects() can trigger NULL dereferences or memory corruption.

Another cpu can change its c->page to NULL or c->node to NUMA_NO_NODE
while we use them.

Use ACCESS_ONCE(c->page) and ACCESS_ONCE(c->node) to make sure this
cannot happen.

Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
2011-11-24 08:44:19 +02:00
Christoph Lameter
42d623a8cd slub: use irqsafe_cpu_cmpxchg for put_cpu_partial
The cmpxchg must be irq safe. The fallback for this_cpu_cmpxchg only
disables preemption which results in per cpu partial page operation
potentially failing on non x86 platforms.

This patch fixes the following problem reported by Christian Kujau:

  I seem to hit it with heavy disk & cpu IO is in progress on this
  PowerBook
  G4. Full dmesg & .config: http://nerdbynature.de/bits/3.2.0-rc1/oops/

  I've enabled some debug options and now it really points to slub.c:2166

    http://nerdbynature.de/bits/3.2.0-rc1/oops/oops4m.jpg

  With debug options enabled I'm currently in the xmon debugger, not sure
  what to make of it yet, I'll try to get something useful out of it :)

Reported-by: Christian Kujau <lists@nerdbynature.de>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
2011-11-24 08:44:14 +02:00
Kumar Gala
05011f370a powerpc/85xx: Fix compile error on p3060_qds.c
arch/powerpc/platforms/85xx/p3060_qds.c: In function '__machine_initcall_p3060_qds_declare_of_platform_devices':
arch/powerpc/platforms/85xx/p3060_qds.c:73:1: error: implicit declaration of function 'declare_of_platform_devices'

declare_of_platform_devices should have been corenet_ds_publish_devices.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-23 22:55:47 -06:00
Paul Bolle
a92282524a powerpc/p3060qds: Fix select of 'MPC8xxx_GPIO'
The driver for the Freescale P3060 QDS got added by commit 96cc017c5b
("[...] Add support for P3060QDS board"). Its Kconfig entry selects
MPC8xxx_GPIO. But at the time that driver got added MPC8xxx_GPIO was
already renamed to GPIO_MPC8XXX, by commit c68308dd50 ("gpio: move
mpc8xxx/512x gpio driver to drivers/gpio").

So make this driver select GPIO_MPC8XXX.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-23 22:55:47 -06:00
Roy Zang
c3c3ced77f powerpc/p1023: set IRQ[4:6,11] to active-high level sensitive for PCIe
P1023 external IRQ[4:6, 11] are not pin out, but the interrupts are
utilized by the PCIe controllers.  As they are not exposed as pins we
need to set them as active-high (internal to the SoC these interrupts
are pulled down).

IRQs[0:3,7:10] are pulled up on the board so we have them set as
active-low.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-23 22:55:47 -06:00
Linus Torvalds
caca6a03d3 Linux 3.2-rc3 2011-11-23 20:20:28 -08:00
Linus Torvalds
9b82e65d65 Merge git://github.com/rustyrussell/linux
* git://github.com/rustyrussell/linux:
  virtio-pci: make reset operation safer
  virtio-mmio: Correct the name of the guest features selector
  virtio: add HAS_IOMEM dependency to MMIO platform bus driver
2011-11-23 20:19:31 -08:00
Michael S. Tsirkin
e6af578c53 virtio-pci: make reset operation safer
virtio pci device reset actually just does an I/O
write, which in PCI is really posted, that is it
can complete on CPU before the device has received it.

Further, interrupts might have been pending on
another CPU, so device callback might get invoked after reset.

This conflicts with how drivers use reset, which is typically:
	reset
	unregister
a callback running after reset completed can race with
unregister, potentially leading to use after free bugs.

Fix by flushing out the write, and flushing pending interrupts.

This assumes that device is never reset from
its vq/config callbacks, or in parallel with being
added/removed, document this assumption.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-24 13:04:48 +10:30
Sasha Levin
fe1a7fe2c4 virtio-mmio: Correct the name of the guest features selector
Guest features selector spelling mistake.

Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-24 13:04:47 +10:30
Heiko Carstens
bd20817f73 virtio: add HAS_IOMEM dependency to MMIO platform bus driver
Fix this compile error on s390:

  CC [M]  drivers/virtio/virtio_mmio.o
drivers/virtio/virtio_mmio.c: In function 'vm_get_features':
drivers/virtio/virtio_mmio.c:107:2: error: implicit declaration of function 'writel'

Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-24 13:04:47 +10:30
Linus Torvalds
8174a06eba Merge branch 'upstream-linus' of git://github.com/jgarzik/libata-dev
* 'upstream-linus' of git://github.com/jgarzik/libata-dev:
  libata: fix build without BMDMA
  [libata] ahci_platform: fix DT probing
2011-11-23 17:26:22 -08:00
Linus Torvalds
09521577ca Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci:
  PCI hotplug: shpchp: don't blindly claim non-AMD 0x7450 device IDs
  PCI: pciehp: wait 100 ms after Link Training check
  PCI: pciehp: wait 1000 ms before Link Training check
  PCI: pciehp: Retrieve link speed after link is trained
  PCI: Let PCI_PRI depend on PCI
  PCI: Fix compile errors with PCI_ATS and !PCI_IOV
  PCI / ACPI: Make acpiphp ignore root bridges using PCIe native hotplug
2011-11-23 14:58:46 -08:00
Tony Lindgren
b079d671f8 Merge branch 'hwmod_dss_fixes_3.2rc' of git://git.pwsan.com/linux-2.6 into fixes-dss 2011-11-23 14:57:37 -08:00
Tony Lindgren
52f3a41e0a Merge branch 'fixes-v3.2-rc2' into fixes 2011-11-23 14:46:10 -08:00
Govindraj.R
8770b07c2d ARM: OMAP2+: Fix Compilation error when omap_l3_noc built as module
Fix below compilation failure on mainline kernel 3.2-rc1
when omap_l3_noc.c is built as module.

arch/arm/mach-omap2/omap_l3_noc.c:240: error: expected ',' or ';' before 'MODULE_DEVICE_TABLE'

Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-23 14:45:37 -08:00
Thomas Weber
52a2396249 ARM: OMAP2+: Remove empty io.h
The file arch/arm/mach-omap2/io.h is empty, so we can remove it.

Signed-off-by: Thomas Weber <weber@corscience.de>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-23 14:45:22 -08:00
Ming Lei
a8a6565c76 ARM: OMAP2: select ARM_AMBA if OMAP3_EMU is defined
This patch selects ARM_AMBA if OMAP3_EMU is defined because
OC_ETM depends on ARM_AMBA, so fix the link failure[1].

[1],
arch/arm/kernel/built-in.o: In function `etm_remove':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:609: undefined
reference to `amba_release_regions'
arch/arm/kernel/built-in.o: In function `etb_remove':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:409: undefined
reference to `amba_release_regions'
arch/arm/kernel/built-in.o: In function `etm_init':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:640: undefined
reference to `amba_driver_register'
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:646: undefined
reference to `amba_driver_register'
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:648: undefined
reference to `amba_driver_unregister'
arch/arm/kernel/built-in.o: In function `etm_probe':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:545: undefined
reference to `amba_request_regions'
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:595: undefined
reference to `amba_release_regions'
arch/arm/kernel/built-in.o: In function `etb_probe':
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:347: undefined
reference to `amba_request_regions'
/home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:392: undefined
reference to `amba_release_regions'
arch/arm/mach-omap2/built-in.o: In function `emu_init':
/home/tom/git/omap/linux-2.6-omap/arch/arm/mach-omap2/emu.c:62:
undefined reference to `amba_device_register'
/home/tom/git/omap/linux-2.6-omap/arch/arm/mach-omap2/emu.c:63:
undefined reference to `amba_device_register'
make: *** [.tmp_vmlinux1] Error 1
making modules

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-23 14:44:50 -08:00
Felipe Balbi
5a4f1844c2 ARM: OMAP: smartreflex: fix IRQ handling bug
Fix a bug which has been on this driver since
it was added by the original commit 984aa6db
which would never clear IRQSTATUS bits.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-23 14:43:37 -08:00
Kevin Hilman
46232a3622 ARM: OMAP: PM: only register TWL with voltage layer when device is present
Current code registers voltage layer details for TWL PMIC even when a TWL
has not been registered.  Fix this to only register the TWL with voltage
layer when the TWL PMIC is initialized by board-level code.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-23 14:43:01 -08:00
sricharan
cc1b0765da ARM: OMAP: hwmod: Fix the addr space, irq, dma count APIs
The address spaces, irqs and dma reqs count APIs return the
number of corresponding entries in a hwmod including a additional
null value or a -1 terminator in the structure introduced recently.
More information here:

- 212738a4: omap_hwmod: use a terminator record with omap_hwmod_mpu_irqs
  arrays

- 78183f3f: omap_hwmod: use a null structure record to terminate
  omap_hwmod_addr_space arrays

- bc614958: omap_hwmod: use a terminator record with omap_hwmod_dma_info
  arrays

The issue with irqs and dma info was originally reported by Benoit Cousson.

The devices which have multiple hwmods and use device_build_ss are
broken with this, as their resources are populated with a extra null
value, subsequently the probe fails. So fix the API not to include
the array terminator in the count.

Reported-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimar@ti.com>
Signed-off-by: sricharan <r.sricharan@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-23 14:35:07 -08:00
Linus Torvalds
de7badf1ad Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  eCryptfs: Extend array bounds for all filename chars
  eCryptfs: Flush file in vma close
  eCryptfs: Prevent file create race condition
2011-11-23 14:28:13 -08:00
Tyler Hicks
0f751e641a eCryptfs: Extend array bounds for all filename chars
From mhalcrow's original commit message:

    Characters with ASCII values greater than the size of
    filename_rev_map[] are valid filename characters.
    ecryptfs_decode_from_filename() will access kernel memory beyond
    that array, and ecryptfs_parse_tag_70_packet() will then decrypt
    those characters. The attacker, using the FNEK of the crafted file,
    can then re-encrypt the characters to reveal the kernel memory past
    the end of the filename_rev_map[] array. I expect low security
    impact since this array is statically allocated in the text area,
    and the amount of memory past the array that is accessible is
    limited by the largest possible ASCII filename character.

This patch solves the issue reported by mhalcrow but with an
implementation suggested by Linus to simply extend the length of
filename_rev_map[] to 256. Characters greater than 0x7A are mapped to
0x00, which is how invalid characters less than 0x7A were previously
being handled.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Michael Halcrow <mhalcrow@google.com>
Cc: stable@kernel.org
2011-11-23 15:43:53 -06:00
Tyler Hicks
32001d6fe9 eCryptfs: Flush file in vma close
Dirty pages weren't being written back when an mmap'ed eCryptfs file was
closed before the mapping was unmapped. Since f_ops->flush() is not
called by the munmap() path, the lower file was simply being released.
This patch flushes the eCryptfs file in the vm_ops->close() path.

https://launchpad.net/bugs/870326

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: stable@kernel.org [2.6.39+]
2011-11-23 15:40:09 -06:00
Tyler Hicks
b59db43ad4 eCryptfs: Prevent file create race condition
The file creation path prematurely called d_instantiate() and
unlock_new_inode() before the eCryptfs inode info was fully
allocated and initialized and before the eCryptfs metadata was written
to the lower file.

This could result in race conditions in subsequent file and inode
operations leading to unexpected error conditions or a null pointer
dereference while attempting to use the unallocated memory.

https://launchpad.net/bugs/813146

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: stable@kernel.org
2011-11-23 15:39:38 -06:00
Arnd Bergmann
56f54e7d67 Merge branch 'fix' of git://github.com/ycmiao/pxa-linux into fixes 2011-11-23 20:30:08 +00:00
Arnd Bergmann
d92c9d5b38 Merge branch 'imx-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes 2011-11-23 20:26:57 +00:00
Arnd Bergmann
4f778f56ee Merge branch 'samsung-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes 2011-11-23 20:22:37 +00:00
Arnd Bergmann
bb68926609 Merge branch 'for-arnd' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into fixes 2011-11-23 20:19:16 +00:00
Rafael J. Wysocki
bb58dd5d1f PM / Hibernate: Do not leak memory in error/test code paths
The hibernation core code forgets to release memory preallocated
for hibernation if there's an error in its early stages or if test
modes causing hibernation_snapshot() to return early are used.  This
causes the system to be hardly usable, because the amount of
preallocated memory is usually huge.  Fix this problem.

Reported-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
2011-11-23 21:03:38 +01:00
Arnd Bergmann
33e1e10a58 Merge branch 'imx6q/fixes' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes 2011-11-23 20:00:00 +00:00
Wolfram Sang
c2735391fb arm: mx28: fix bit operation in clock setting
reg | (1 << clk->enable_shift) always evaluates to true. Switch it
to & which makes much more sense. Same fix as 13be9f00 (ARM i.MX28: fix
bit operation) at a different location.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: stable@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-11-23 19:59:12 +00:00
Linus Torvalds
f10cdea68b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Check parent options for iterated tests
2011-11-23 09:50:42 -08:00
Linus Torvalds
5907c5f8ad Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c: Make i2cdev_notifier_call static
  i2c: Delete ANY_I2C_BUS
  i2c: Fix device name for 10-bit slave address
  i2c-algo-bit: Generate correct i2c address sequence for 10-bit target
2011-11-23 09:50:05 -08:00
Linus Torvalds
0a2c986557 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: TPS65910: Fix VDD1/2 voltage selector count
2011-11-23 09:49:39 -08:00
Linus Torvalds
2d0f2400a4 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (31 commits)
  drm: integer overflow in drm_mode_dirtyfb_ioctl()
  drivers/gpu/vga/vgaarb.c: add missing kfree
  drm/radeon/kms/atom: unify i2c gpio table handling
  drm/radeon/kms: fix up gpio i2c mask bits for r4xx for real
  ttm: Don't return the bo reserved on error path
  drm/radeon/kms: add a CS ioctl flag not to rewrite tiling flags in the CS
  drm/i915: Fix inconsistent backlight level during disabled
  drm, i915: Fix memory leak in i915_gem_busy_ioctl().
  drm/i915: Use DPCD value for max DP lanes.
  drm/i915: Initiate DP link training only on the lanes we'll be using
  drm/i915: Remove trailing white space
  drm/i915: Try harder during dp pattern 1 link training
  drm/i915: Make DP prepare/commit consistent with DP dpms
  drm/i915: Let panel power sequencing hardware do its job
  drm/i915: Treat PCH eDP like DP in most places
  drm/i915: Remove link_status field from intel_dp structure
  drm/i915: Move common PCH_PP_CONTROL setup to ironlake_get_pp_control
  drm/i915: Module parameters using '-1' as default must be signed type
  drm/i915: Turn on another required clock gating bit on gen6.
  drm/i915: Turn on a required 3D clock gating bit on Sandybridge.
  ...
2011-11-23 09:47:25 -08:00
Dave Young
67589c7145 percpu: explain why per_cpu_ptr_to_phys() is more complicated than necessary
Add comments about current per_cpu_ptr_to_phys implementation to
explain why the logic is more complicated than necessary.

-tj: relocated comment into kerneldoc comment

Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2011-11-23 08:20:53 -08:00
Takashi Iwai
77088cc973 Merge branch 'fix/asoc' into for-linus 2011-11-23 17:07:16 +01:00
Afzal Mohammed
780dc9ba4e regulator: TPS65910: Fix VDD1/2 voltage selector count
Count of selector voltage is required for regulator_set_voltage
to work via set_voltage_sel. VDD1/2 currently have it as zero,
so regulator_set_voltage won't work for VDD1/2.
Update count (n_voltages) for VDD1/2.

Output Voltage = (step value * 12.5 mV + 562.5 mV) * gain

With above expr, number of voltages that can be selected is
step value count * gain count

constant for gain count will be called VDD1_2_NUM_VOLT_COARSE

existing constant for step value count is VDD1_2_NUM_VOLTS,
use VDD1_2_NUM_VOLT_FINE instead to make clear that step value
is not the only component in deciding selectable voltage count

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23 14:03:52 +00:00
Shubhrajyoti D
eff245c82f i2c: Make i2cdev_notifier_call static
The function i2cdev_notifier_call is used only in i2c-dev file
making it static.
Also removes the following sparse warning

drivers/i2c/i2c-dev.c:582:5: warning: symbol 'i2cdev_notifier_call'
was not declared. Should it be static?

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-11-23 11:33:07 +01:00
Jean Delvare
67820021dc i2c: Delete ANY_I2C_BUS
Last piece of code using ANY_I2C_BUS was deleted almost 2 years ago,
so ANY_I2C_BUS can go away as well.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-11-23 11:33:07 +01:00
Jean Delvare
cbb4451404 i2c: Fix device name for 10-bit slave address
10-bit addresses overlap with traditional 7-bit addresses, leading in
device name collisions. Add an arbitrary offset to 10-bit addresses to
prevent this collision. The offset was chosen so that the address is
still easily recognizable.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2011-11-23 11:33:07 +01:00
Jeffrey (Sheng-Hui) Chu
cc6bcf7d2e i2c-algo-bit: Generate correct i2c address sequence for 10-bit target
The wrong bits were put on the wire, fix that.

This fixes kernel bug #42562.

Signed-off-by: Sheng-Hui J. Chu <jeffchu@broadcom.com>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-11-23 11:33:07 +01:00
Xi Wang
a5cd335165 drm: integer overflow in drm_mode_dirtyfb_ioctl()
There is a potential integer overflow in drm_mode_dirtyfb_ioctl()
if userspace passes in a large num_clips.  The call to kmalloc would
allocate a small buffer, and the call to fb->funcs->dirty may result
in a memory corruption.

Reported-by: Haogang Chen <haogangchen@gmail.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-23 08:59:28 +00:00
Takashi Iwai
61071594f6 ALSA: hda/realtek - Minor cleanup
Use an inline function for the common pattern for assigning a capsrc.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-23 07:52:15 +01:00
Takashi Iwai
6759dc3238 ALSA: hda/realtek - Fix missing inits of item indices for auto-mic
When the imux entries are rebuilt in alc_rebuild_imux_for_auto_mic(),
the initialization of index field is missing.  It may work without it
casually when the original imux was created by the auto-parser, but
it's definitely broken in the case of static configs where no imux was
parsed beforehand.  Because of this, the auto-mic switching doesn't
work properly on some model options.

This patch adds the missing initialization of index field.

Reported-by: Dmitry Nezhevenko <dion@inhex.net>
Cc: <stable@kernel.org> [v3.1]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-23 07:45:21 +01:00
Takashi Iwai
6dfeb703e3 ALSA: hda - Fix invalid pin and GPIO for Apple laptops with CS codecs
The PCI SSID 8086:7270 is commonly used for multiple Apple machines,
thus we can't use it as identifier for a unique model.  Because of this
conflict, some machines show weird behavior.  For example, MacBook Air
shows Front and Surround speakers although only Surround works due to
the wrongly overridden pin-configuration for imac27.

This patch fixes two things:
- Stop the wrong pin-config override of imac27 by removing PCI SSID
  entry for avoiding the wrong mappings,
- Add the generic GPIO setup for Apple machines by checking the codec
  SSID vendor bits

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Dirk Hohndel <hohndel@infradead.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-23 07:31:49 +01:00
Takashi Iwai
e2301a4de2 ALSA: hda - Check subdevice mask in snd_hda_check_board_codec_sid_config()
In snd_hda_check_board_codec_sid_config(), not only comparing with the
exact value but allow the bit-mask comparison for vendor-only, etc.

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Dirk Hohndel <hohndel@infradead.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-23 07:31:36 +01:00
Linus Torvalds
b4bbb02934 Revert "of/irq: of_irq_find_parent: check for parent equal to child"
This reverts commit dc93728084.

As requested by Ben Herrenschmidt:
  "This breaks some powerpc platforms at least.  The practice of having
   a node provide an explicit "interrupt-parent" property pointing to
   itself is an old trick that we've used in the past to allow a
   device-node to have interrupts routed to different controllers.

   In that case, the node also contains an interrupt-map, so the node is
   its own parent, the interrupt resolution hits the map, which then can
   route each individual interrupt to a different parent."

Grant says:
  "Ah, nuts, yes that is broken then.  Yes, please revert the commit and
   Rob & I will come up with a better solution.

   Rob, I think it can be done by explicitly checking for np ==
   desc->interrupt_parent in of_irq_init() instead of relying on
   of_irq_find_parent() returning NULL."

Requested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Cc: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-22 15:09:20 -08:00
Trond Myklebust
24ca9a8477 SUNRPC: Ensure we return EAGAIN in xs_nospace if congestion is cleared
By returning '0' instead of 'EAGAIN' when the tests in xs_nospace() fail
to find evidence of socket congestion, we are making the RPC engine believe
that the message was incorrectly sent and so it disconnects the socket
instead of just retrying.

The bug appears to have been introduced by commit
5e3771ce2d (SUNRPC: Ensure that xs_nospace
return values are propagated).

Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org [>= 2.6.30]
Tested-by: Andrew Cooper <andrew.cooper3@citrix.com>
2011-11-22 23:55:27 +02:00
Linus Torvalds
2db1125d51 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  mount_subtree() pointless use-after-free
  iio: fix a leak due to improper use of anon_inode_getfd()
  microblaze: bury asm/namei.h
2011-11-22 13:19:21 -08:00
Russell King
7334c6755e Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into fixes 2011-11-22 20:44:19 +00:00
Julia Lawall
c916874d60 drivers/gpu/vga/vgaarb.c: add missing kfree
kbuf is a buffer that is local to this function, so all of the error paths
leaving the function should release it.

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-22 20:21:10 +00:00
Alex Deucher
21240f9bc1 drm/radeon/kms/atom: unify i2c gpio table handling
Split the quirks and i2c_rec assignment into separate
functions used by both radeon_lookup_i2c_gpio() and
radeon_atombios_i2c_init().  This avoids duplicating code
and cases where quirks were only added to one of the
functions.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-22 20:10:28 +00:00
Alex Deucher
d724502a9d drm/radeon/kms: fix up gpio i2c mask bits for r4xx for real
Fixes i2c test failures when i2c_algo_bit.bit_test=1.

The hw doesn't actually require a mask, so just set it
to the default mask bits for r1xx-r4xx radeon ddc.

I missed this part the first time through.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-22 20:09:08 +00:00
Thomas Hellstrom
26cc40a833 ttm: Don't return the bo reserved on error path
An unlikely race could case a bo to be returned reserved on an error path.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-22 20:06:21 +00:00
Dave Airlie
cdaeb578ac Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux into drm-fixes
* 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux: (25 commits)
  drm/i915: Fix inconsistent backlight level during disabled
  drm, i915: Fix memory leak in i915_gem_busy_ioctl().
  drm/i915: Use DPCD value for max DP lanes.
  drm/i915: Initiate DP link training only on the lanes we'll be using
  drm/i915: Remove trailing white space
  drm/i915: Try harder during dp pattern 1 link training
  drm/i915: Make DP prepare/commit consistent with DP dpms
  drm/i915: Let panel power sequencing hardware do its job
  drm/i915: Treat PCH eDP like DP in most places
  drm/i915: Remove link_status field from intel_dp structure
  drm/i915: Move common PCH_PP_CONTROL setup to ironlake_get_pp_control
  drm/i915: Module parameters using '-1' as default must be signed type
  drm/i915: Turn on another required clock gating bit on gen6.
  drm/i915: Turn on a required 3D clock gating bit on Sandybridge.
  drm/i915: enable cacheable objects on Ivybridge
  drm/i915: add constants to size fence arrays and fields
  drm/i915: Ivybridge still has fences!
  drm/i915: forcewake warning fixes in debugfs
  drm/i915: Fix object refcount leak on mmappable size limit error path.
  drm/i915: Use mode_config.mutex in ironlake_panel_vdd_work
  ...
2011-11-22 20:01:00 +00:00
Will Deacon
e5a2132764 ARM: perf: check that we have a platform device when reserving PMU
Attempting to use a hardware counter on a platform with a supported PMU
but where the platform_device (defining the interrupts) has not been
registered results in a NULL pointer dereference.

This patch fixes the problem by checking that we actually have a platform
device registered before attempting to grab the interrupts.

Reported-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-11-22 18:01:46 +00:00
Al Viro
d31da0f0ba mount_subtree() pointless use-after-free
d'oh... we'd carefully pinned mnt->mnt_sb down, dropped mnt and attempt
to grab s_umount on mnt->mnt_sb.  The trouble is, *mnt might've been
overwritten by now...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-22 12:31:21 -05:00
Linus Torvalds
866d43c9ea 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: ams_delta_serio - include linux/module.h
  Input: elantech - adjust hw_version detection logic
  Input: i8042 - add HP Pavilion dv4s to 'notimeout' and 'nomux' blacklists
2011-11-22 09:18:06 -08:00
Linus Torvalds
1b464d8429 Merge git://www.linux-watchdog.org/linux-watchdog
* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: fix initialisation printout in s3c2410_wdt
  watchdog: Don't overwrite error value in wm831x_wdt_set_timeout()
  watchdog: adx_wdt.c: remove driver
2011-11-22 09:17:30 -08:00
Linus Torvalds
e25ba0ce03 Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Revert pnfs ugliness from the generic NFS read code path
  SUNRPC: destroy freshly allocated transport in case of sockaddr init error
  NFS: Fix a regression in the referral code
  nfs: move nfs_file_operations declaration to bottom of file.c (try #2)
  nfs: when attempting to open a directory, fall back on normal lookup (try #5)
2011-11-22 08:54:15 -08:00
Linus Torvalds
af36d15f58 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: remove free-space-cache.c WARN during log replay
  Btrfs: sectorsize align offsets in fiemap
  Btrfs: clear pages dirty for io and set them extent mapped
  Btrfs: wait on caching if we're loading the free space cache
  Btrfs: prefix resize related printks with btrfs:
  btrfs: fix stat blocks accounting
  Btrfs: avoid unnecessary bitmap search for cluster setup
  Btrfs: fix to search one more bitmap for cluster setup
  btrfs: mirror_num should be int, not u64
  btrfs: Fix up 32/64-bit compatibility for new ioctls
  Btrfs: fix barrier flushes
  Btrfs: fix tree corruption after multi-thread snapshots and inode_cache flush
2011-11-22 08:53:40 -08:00
Linus Torvalds
8ba8ed54de Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
* 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
  writeback: remove vm_dirties and task->dirties
  writeback: hard throttle 1000+ dd on a slow USB stick
  mm: Make task in balance_dirty_pages() killable
2011-11-22 08:22:48 -08:00
Tejun Heo
a855b84c3d percpu: fix chunk range calculation
Percpu allocator recorded the cpus which map to the first and last
units in pcpu_first/last_unit_cpu respectively and used them to
determine the address range of a chunk - e.g. it assumed that the
first unit has the lowest address in a chunk while the last unit has
the highest address.

This simply isn't true.  Groups in a chunk can have arbitrary positive
or negative offsets from the previous one and there is no guarantee
that the first unit occupies the lowest offset while the last one the
highest.

Fix it by actually comparing unit offsets to determine cpus occupying
the lowest and highest offsets.  Also, rename pcu_first/last_unit_cpu
to pcpu_low/high_unit_cpu to avoid confusion.

The chunk address range is used to flush cache on vmalloc area
map/unmap and decide whether a given address is in the first chunk by
per_cpu_ptr_to_phys() and the bug was discovered by invalid
per_cpu_ptr_to_phys() translation for crash_note.

Kudos to Dave Young for tracking down the problem.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: WANG Cong <xiyou.wangcong@gmail.com>
Reported-by: Dave Young <dyoung@redhat.com>
Tested-by: Dave Young <dyoung@redhat.com>
LKML-Reference: <4EC21F67.10905@redhat.com>
Cc: stable @kernel.org
2011-11-22 08:09:46 -08:00
Bob Liu
90459ce06f percpu: rename pcpu_mem_alloc to pcpu_mem_zalloc
Currently pcpu_mem_alloc() is implemented always return zeroed memory.
So rename it to make user like pcpu_get_pages_and_bitmap() know don't
reinit it.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
2011-11-22 08:09:41 -08:00
Wu Fengguang
a370fc62b9 ALSA: hda - fail ELD reading early
With the ELD repoll mechanism, we can (and should) fail the ELD reading
immediately when find something obviously wrong and let the caller retry
after some delay.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-22 12:09:45 +01:00
Tim Blechmann
a29878553a ALSA: lx6464es - fix device communication via command bus
commit 6175ddf06b optimized the mem*io
functions that have been used to send commands to the device. these
optimizations somehow corrupted the communication with the lx6464es,
that resulted the device to be unusable with kernels after 2.6.33.

this patch emulates the memcpy_*_io functions via a loop to avoid these
problems.

Signed-off-by: Tim Blechmann <tim@klingt.org>
LKML-Reference: <4ECB5257.4040600@ladisch.de>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-22 11:53:11 +01:00
Tim Blechmann
afd00d7235 ALSA: lx6464es - command buffer API cleanup
the command buffer is only accessed from one file, so we can declare the
specific functions as static in that file

Signed-off-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-22 11:52:53 +01:00
Wu Fengguang
c6e8453e75 ALSA: hda - repoll ELD content for multiple times
Improve the one-shot ELD repoll to up to 6 retries.

Up to now the 300ms looks sufficient for the test boxes. However
I'm a bit worried about how well it can fit the wider user base.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-22 11:35:58 +01:00
Sascha Hauer
7378a62be2 Merge branch 'cleanups/remove-unused-kconfig' into imx-fixes-for-arnd 2011-11-22 11:33:00 +01:00
Sascha Hauer
9a2ee7152c Merge branch 'cleanups/assorted' into imx-fixes-for-arnd
Conflicts:
	arch/arm/mach-imx/mm-imx3.c

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-22 11:32:39 +01:00
Sascha Hauer
13420c6b5b Merge branches 'fixes/imx3-build', 'fixes/imx_ioremap' and 'fixes/maintainer-update' into imx-fixes 2011-11-22 11:21:22 +01:00
Arnd Bergmann
807dfe7041 ARM: imx: export imx_ioremap
The arch_ioremap function on i.MX is now an indirect function pointer.
In order to use it from any loadable module, the pointer itself
has to be exported.

ERROR: "imx_ioremap" [drivers/video/tmiofb.ko] undefined!
ERROR: "imx_ioremap" [drivers/usb/host/sl811-hcd.ko] undefined!
ERROR: "imx_ioremap" [drivers/usb/host/r8a66597-hcd.ko] undefined!
ERROR: "imx_ioremap" [drivers/usb/host/oxu210hp-hcd.ko] undefined!
ERROR: "imx_ioremap" [drivers/usb/gadget/r8a66597-udc.ko] undefined!

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-22 11:16:49 +01:00
Uwe Kleine-König
87514fced7 ARM: imx/mm-imx3: conditionally compile i.MX31 and i.MX35 code
This fixes building a kernel for only one of the two SOCs. Without this
patch an i.MX31 only build fails with:

	arch/arm/mach-imx/built-in.o: In function `imx35_init_early':
	mach-bug.c:(.init.text+0x2c): undefined reference to `mxc_iomux_v3_init'
	arch/arm/mach-imx/built-in.o: In function `imx35_soc_init':
	mach-bug.c:(.init.text+0xe4): undefined reference to `mx35_revision'

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-22 11:10:48 +01:00
Fabio Estevam
ca06679d75 ARM: mx5: Fix checkpatch warnings in cpu-imx5.c
Fix the following warnings reported by checkpatch:

WARNING: Use #include <linux/io.h> instead of <asm/io.h>
#19: FILE: arm/mach-imx/cpu-imx5.c:19:
+#include <asm/io.h>

WARNING: line over 80 characters
#70: FILE: arm/mach-imx/cpu-imx5.c:70:
+	if (mx51_revision() < IMX_CHIP_REVISION_3_0 && (elf_hwcap & HWCAP_NEON)) {

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-22 10:28:49 +01:00
Sascha Hauer
adf792928d MAINTAINERS: Add missing directory
arch/arm/mach-imx/ is part of the i.MX support. Add it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-22 10:04:50 +01:00
Paul Bolle
e760b5260d ARM: imx: drop 'ARCH_MX31' and 'ARCH_MX35'
Commit 27ad4bf72a ("ARM: imx: move mx3 support to mach-imx") kept
ARCH_MX31 and ARCH_MX35 'for compatibility'. Now that they aren't
actually used anymore, they can be dropped entirely.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-22 10:02:12 +01:00
Adrian Knoth
05c7cc9cca ALSA: hdspm - Fix PCI ID for PCIe RME MADI cards
Commit c09403dcc5 has introduced a
regression: PCIe versions of RME MADI were no longer detected, because
the MADIface ID (0xd5) was used instead of the correct 0xd2.

This commit fixes the problem.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-22 08:34:36 +01:00
Linus Torvalds
bbbc4791cd Merge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: fix more ET131X build errors
  staging: et131x depends on NET
  staging: slicoss depends on NET
  linux-next: et131x: Fix build error when CONFIG_PM_SLEEP not enabled
2011-11-21 20:37:34 -08:00
Linus Torvalds
3c688149ce Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (48 commits)
  USB: Fix Corruption issue in USB ftdi driver ftdi_sio.c
  USB: option: add PID of Huawei E173s 3G modem
  OHCI: final fix for NVIDIA problems (I hope)
  USB: option: release new PID for ZTE 3G modem
  usb: Netlogic: Fix HC_LENGTH call in ehci-xls.c
  USB: storage: ene_ub6250: fix compile warnings
  USB: option: add id for 3G dongle Model VT1000 of Viettel
  USB: serial: pl2303: rm duplicate id
  USB: pch_udc: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
  USB: pch_udc: Support new device LAPIS Semiconductor ML7831 IOH
  usb-storage: Accept 8020i-protocol commands longer than 12 bytes
  USB: quirks: adding more quirky webcams to avoid squeaky audio
  powerpc/usb: fix type cast for address of ioremap to compatible with 64-bit
  USB: at91: at91-ohci: fix set/get power
  USB: cdc-acm: Fix disconnect() vs close() race
  USB: add quirk for Logitech C600 web cam
  USB: EHCI: fix HUB TT scheduling issue with iso transfer
  USB: XHCI: resume root hubs when the controller resumes
  USB: workaround for bug in old version of GCC
  USB: ark3116 initialisation fix
  ...
2011-11-21 20:37:11 -08:00
Linus Torvalds
3b9abc7e48 Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  TTY: ldisc, wait for ldisc infinitely in hangup
  TTY: ldisc, move wait idle to caller
  TTY: ldisc, allow waiting for ldisc arbitrarily long
  Revert "tty/serial: Prevent drop of DCD on suspend for Tegra UARTs"
  RS485: fix inconsistencies in the meaning of some variables
  pch_uart: Fix DMA resource leak issue
  serial,mfd: Fix CMSPAR setup
  tty/serial: Prevent drop of DCD on suspend for Tegra UARTs
  pch_uart: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
  pch_uart: Support new device LAPIS Semiconductor ML7831 IOH
  pch_uart: Fix hw-flow control issue
  tty: hvc_dcc: Fix duplicate character inputs
  jsm: Change maintainership
2011-11-21 20:36:46 -08:00
Linus Torvalds
0cda56962b Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
* 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  drivers/base/node.c: fix compilation error with older versions of gcc
  uio: documentation fixups
  device.h: Fix struct member documentation
2011-11-21 20:36:26 -08:00
Linus Torvalds
b0d81664a0 Merge branch 'char-misc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
* 'char-misc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: ad525x_dpot: Fix AD8400 spi transfer size.
  pch_phub: Fix MAC address writing issue for LAPIS ML7831
  pch_phub: Improve ADE(Address Decode Enable) control
  pch_phub: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
  pch_phub: Support new device LAPIS Semiconductor ML7831 IOH
  pcie-gadget-spear: Add "platform:" prefix for platform modalias
  MAINTAINERS: add CHAR and MISC driver maintainers
2011-11-21 20:36:05 -08:00
Daniel Drake
a32839696a viafb: correct sync polarity for OLPC DCON
While the OLPC display appears to be able to handle either positive
or negative sync, the Display Controller only recognises positive sync.

This brings viafb (for XO-1.5) in line with lxfb (for XO-1) and
fixes a recent regression where the XO-1.5 DCON could no longer be
frozen. Thanks to Florian Tobias Schandinat for helping identify
the fix.

Test case: from a vt,
	echo 1 > /sys/devices/platform/dcon/freeze
should cause the current screen contents to freeze, rather than garbage being
displayed.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: stable@kernel.org
2011-11-22 00:56:17 +00:00
Florian Tobias Schandinat
50084842cc Merge branch 'for-3.2-rc' of git://gitorious.org/linux-omap-dss2/linux into fbdev-for-linus 2011-11-22 00:55:59 +00:00
Manjunathappa, Prakash
74a0efdef1 video:da8xx-fb: Disable and reset sequence on version2 of LCDC
Patch follows the disable and software reset sequence specified
in version2 to LCDC functional specification.
Without this flicker is observed on re-enabling the LCDC.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-11-22 00:55:53 +00:00
Al Viro
b464133679 iio: fix a leak due to improper use of anon_inode_getfd()
it can fail and in that case ->release() will *not* be called...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-21 17:25:37 -05:00
Al Viro
c332c10c01 microblaze: bury asm/namei.h
altroot support has been gone for years, along with arch/*/asm/namei.h;
looks like a dummy survivor that sat it out in microblaze tree...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-21 16:48:28 -05:00
Linus Torvalds
f8f5ed7c99 Merge branch 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix up a undefined error in ext4_free_blocks in debugging code
  ext4: add blk_finish_plug in error case of writepages.
  ext4: Remove kernel_lock annotations
  ext4: ignore journalled data options on remount if fs has no journal
2011-11-21 12:11:37 -08:00
Linus Torvalds
c292fe4aae Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: Allocate larger oid buffer in request msgs
  ceph: initialize root dentry
  ceph: fix iput race when queueing inode work
2011-11-21 12:11:13 -08:00
Linus Torvalds
7758c4d6e9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: Log the fact that we've given ELOOP rather than creating a loop
  minixfs: kill manual hweight(), simplify
  fs/minix: Verify bitmap block counts before mounting
2011-11-21 12:10:47 -08:00
Al Viro
cc11f9edd9 fix braino in um patchset (mea culpa)
wrong register returned...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-21 12:10:21 -08:00
Chris Mason
24a7031396 Btrfs: remove free-space-cache.c WARN during log replay
The log replay code only partially loads block groups, since
the block group caching code is able to detect and deal with
extents the logging code has pinned down.

While the logging code is pinning down block groups, there is
a bogus WARN_ON we're hitting if the code wasn't able to find
an extent in the cache.  This commit removes the warning because
it can happen any time there isn't a valid free space cache
for that block group.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-21 14:57:33 -05:00
Mark Brown
404ba2b8f6 gpio: pca953x: Staticise pca953x_get_altdata()
It's not used outside of the driver so doesn't need to be exported, and
sparse notices this and complains about it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-21 20:53:15 +01:00
Yongqiang Yang
6e58ad69ef ext4: fix up a undefined error in ext4_free_blocks in debugging code
sbi is not defined, so let ext4_free_blocks use EXT4_SB(sb) instead
when EXT4FS_DEBUG is defined.

Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
2011-11-21 12:09:19 -05:00
Mark Brown
ed3e80c4c9 ASoC: Ensure WM8731 register cache is synced when resuming from disabled
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2011-11-21 16:58:46 +00:00
Catalin Marinas
53cbcbcf43 ARM: 7166/1: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c
Commit 99d1717d (ARM: Add init_consistent_dma_size()) introduces dynamic
allocation of the consistent_pte array. The number of PTEs should be
calculated based on the number of PMD entries rather than PGD, hence the
PMD_SHIFT.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-21 13:12:19 +00:00
Javi Merino
1c8a7c1fbf ARM: 7165/2: PL330: Fix typo in _prepare_ccr()
scctl should be shifted by CC_SRCCTRL_SHFT and dcctl by

CC_DSTCCTRL_SHFT, not the other way round.

Reference: <1320244259-10496-4-git-send-email-javi.merino@arm.com>

Signed-off-by: Javi Merino <javi.merino@arm.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-21 13:12:19 +00:00
Javi Merino
2674dd0b1c ARM: 7163/2: PL330: Only register usable channels
When the manager is running non-secure, the only channels that can
issue interrupts are the ones that have a 1 in their corresponding bit
in Configuration Register 3. The other ones will generate an abort
when trying to signal the end of the transaction so they are useless
in non-secure mode.

Reference: <1320244259-10496-2-git-send-email-javi.merino@arm.com>

Signed-off-by: Javi Merino <javi.merino@arm.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-21 13:12:19 +00:00
Will Deacon
fa0ce4035d ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds
The Kconfig options for the PL310 errata workarounds do not use a
consistent naming scheme for either the config option or the bool
description.

This patch tidies up the options by ensuring that the bool descriptions
are prefixed with "PL310 errata:" and the config options are prefixed
with PL310_ERRATA_, making it much clearer in menuconfig as to what the
workarounds are for.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-21 13:12:18 +00:00
Will Deacon
11ed0ba175 ARM: 7161/1: errata: no automatic store buffer drain
This patch implements a workaround for PL310 erratum 769419. On
revisions of the PL310 prior to r3p2, the Store Buffer does not
automatically drain. This can cause normal, non-cacheable writes to be
retained when the memory system is idle, leading to suboptimal I/O
performance for drivers using coherent DMA.

This patch adds an optional wmb() call to the cpu_idle loop. On systems
with an outer cache, this causes an explicit flush of the store buffer.

Cc: stable@vger.kernel.org
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-21 13:12:18 +00:00
Mark Brown
1d9a91db92 Merge branch 'DB_RANGE-size-fixes' of git://git.alsa-project.org/alsa-kprivate into for-3.2 2011-11-21 11:28:11 +00:00
Dan Carpenter
27533df80e ALSA: cs5535 - Fix an endianness conversion
desc->size is supposed to be a le16 type.  On a big endian system the
current code will set ->size to zero.  We fixed a similar bug
on the next line but missed this one.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-21 12:03:55 +01:00
Phil Sutter
274252862f crypto: mv_cesa - fix hashing of chunks > 1920 bytes
This was broken by commit 7759995c75 (yes,
myself). The basic problem here is since the digest state is only saved
after the last chunk, the state array is only valid when handling the
first chunk of the next buffer. Broken since linux-3.0.

Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Cc: <stable@kernel.org> # 3.1.x
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:23:08 +08:00
David Howells
dd179946db VFS: Log the fact that we've given ELOOP rather than creating a loop
To prevent an NFS server from being used to create a directory loop in an NFS
superblock on the client, the following patch was committed:

	commit 1836750115
	Author: Al Viro <viro@zeniv.linux.org.uk>
	Date:   Tue Jul 12 21:42:24 2011 -0400
	Subject: fix loop checks in d_materialise_unique()

This causes ELOOP to be reported to anyone trying to access the dentry that
would otherwise cause the kernel to complete the loop.

However, no indication is given to the caller as to why an operation that ought
to work doesn't.  The fault is with the kernel, which doesn't want to try and
solve the problem as it gets horrendously messy if there's another mountpoint
somewhere in the trees being spliced that can't be moved[*].

[*] The real problem is that we don't handle the excision of a subtree that
gets moved _out_ of what we can see.  This can happen on the server where a
directory is merely moved between two other dirs on the same filesystem, but
where destination dir is not accessible by the client.

So, given the choice to return ELOOP rather than trying to reconfigure the
dentry tree, we should give the caller some indication of why they aren't being
allowed to make what should be a legitimate request and log a message.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-20 23:04:27 -05:00
Linus Torvalds
6fe4c6d466 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (86 commits)
  ipv4: fix redirect handling
  ping: dont increment ICMP_MIB_INERRORS
  sky2: fix hang in napi_disable
  sky2: enforce minimum ring size
  bonding: Don't allow mode change via sysfs with slaves present
  f_phonet: fix page offset of first received fragment
  stmmac: fix pm functions avoiding sleep on spinlock
  stmmac: remove spin_lock in stmmac_ioctl.
  stmmac: parameters auto-tuning through HW cap reg
  stmmac: fix advertising 1000Base capabilties for non GMII iface
  stmmac: use mdelay on timeout of sw reset
  sky2: version 1.30
  sky2: used fixed RSS key
  sky2: reduce default Tx ring size
  sky2: rename up/down functions
  sky2: pci posting issues
  sky2: fix hang on shutdown (and other irq issues)
  r6040: fix check against MCRO_HASHEN bit in r6040_multicast_list
  MAINTAINERS: change email address for shemminger
  pch_gbe: Move #include of module.h
  ...
2011-11-20 14:59:33 -08:00
Linus Torvalds
a4cc3889f7 Merge branch 'kvm-updates/3.2' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/3.2' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM guest: prevent tracing recursion with kvmclock
  Revert "KVM: PPC: Add support for explicit HIOR setting"
  KVM: VMX: Check for automatic switch msr table overflow
  KVM: VMX: Add support for guest/host-only profiling
  KVM: VMX: add support for switching of PERF_GLOBAL_CTRL
  KVM: s390: announce SYNC_MMU
  KVM: s390: Fix tprot locking
  KVM: s390: handle SIGP sense running intercepts
  KVM: s390: Fix RUNNING flag misinterpretation
2011-11-20 14:57:43 -08:00
Linus Torvalds
bb893d15b5 Merge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
  ARM: wire up process_vm_writev and process_vm_readv syscalls
  ARM: 7160/1: setup: avoid overflowing {elf,arch}_name from proc_info_list
  ARM: 7158/1: add new MFP implement for NUC900
  ARM: 7157/1: fix a building WARNING for nuc900
  ARM: 7156/1: l2x0: fix compile error on !CONFIG_USE_OF
  ARM: 7155/1: arch.h: Declare 'pt_regs' locally
  ARM: 7154/1: mach-bcmring: fix build error in dma.c
  ARM: 7153/1: mach-bcmring: fix build error in core.c
  ARM: 7152/1: distclean: Remove generated .dtb files
  ARM: 7150/1: Allow kernel unaligned accesses on ARMv6+ processors
  ARM: 7149/1: spi/pl022: Enable clock in probe
  Revert "ARM: 7098/1: kdump: copy kernel relocation code at the kexec prepare stage"
2011-11-20 14:34:58 -08:00
Linus Torvalds
2d360fcbd8 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 / Suspend: Fix bug in suspend statistics update
  PM / Hibernate: Fix the early termination of test modes
  PM / shmobile: Fix build of sh7372_pm_init() for CONFIG_PM unset
  PM Sleep: Do not extend wakeup paths to devices with ignore_children set
  PM / driver core: disable device's runtime PM during shutdown
  PM / devfreq: correct Kconfig dependency
  PM / devfreq: fix use after free in devfreq_remove_device
  PM / shmobile: Avoid restoring the INTCS state during initialization
  PM / devfreq: Remove compiler error after irq.h update
  PM / QoS: Properly use the WARN() macro in dev_pm_qos_add_request()
  PM / Clocks: Only disable enabled clocks in pm_clk_suspend()
  ARM: mach-shmobile: sh7372 A3SP no_suspend_console fix
  PM / shmobile: Don't skip debugging output in pd_power_up()
2011-11-20 14:33:02 -08:00
Axel Lin
ef0cd47093 ASoC: cs4271: Fix wrong mask parameter in some snd_soc_update_bits calls
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Alexander Sverdlin <subaparts@yandex.ru>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-20 20:58:21 +00:00
Clemens Ladisch
028aa634e1 ASoC: wm_hubs: fix DB_RANGE size
Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent
reading more data than actually is in the array.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-11-20 15:46:52 +01:00
Clemens Ladisch
a1320fee27 ASoC: wm9090: fix DB_RANGE size
Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent
reading more data than actually is in the arrays.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-11-20 15:46:51 +01:00
Clemens Ladisch
dac678f5c2 ASoC: wm8993: fix DB_RANGE size
Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent
reading more data than actually is in the array.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-11-20 15:46:51 +01:00
Clemens Ladisch
43e9dc7bce ASoC: wm8962: fix DB_RANGE size
Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent
reading more data than actually is in the arrays.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-11-20 15:46:50 +01:00
Clemens Ladisch
740fb9d512 ASoC: sgtl5000: fix DB_RANGE size
Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent
reading more data than actually is in the array.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-11-20 15:46:50 +01:00
Clemens Ladisch
a19ea0b8ec ASoC: rt5631: fix DB_RANGE size
Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent
the last entry from being omitted.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-11-20 15:46:25 +01:00
Clemens Ladisch
0aed4a95ce ASoC: adau1373: fix DB_RANGE size
Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent
reading more data than actually is in the array.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2011-11-20 15:46:24 +01:00
Josef Bacik
4d479cf010 Btrfs: sectorsize align offsets in fiemap
We've been hitting BUG()'s in btrfs_cont_expand and btrfs_fallocate and anywhere
else that calls btrfs_get_extent while running xfstests 13 in a loop.  This is
because fiemap is calling btrfs_get_extent with non-sectorsize aligned offsets,
which will end up adding mappings that are not sectorsize aligned, which will
cause problems in some cases for subsequent calls to btrfs_get_extent for
similar areas that are sectorsize aligned.  With this patch I ran xfstests 13 in
a loop for a couple of hours and didn't hit the problem that I could previously
hit in at most 20 minutes.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
2011-11-20 07:42:17 -05:00
Josef Bacik
f7d61dcd68 Btrfs: clear pages dirty for io and set them extent mapped
When doing the io_ctl helpers to clean up the free space cache stuff I stopped
using our normal prepare_pages stuff, which means I of course forgot to do
things like set the pages extent mapped, which will cause us all sorts of
wonderful propblems.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
2011-11-20 07:42:17 -05:00
Josef Bacik
291c7d2f57 Btrfs: wait on caching if we're loading the free space cache
We've been hitting panics when running xfstest 13 in a loop for long periods of
time.  And actually this problem has always existed so we've been hitting these
things randomly for a while.  Basically what happens is we get a thread coming
into the allocator and reading the space cache off of disk and adding the
entries to the free space cache as we go.  Then we get another thread that comes
in and tries to allocate from that block group.  Since block_group->cached !=
BTRFS_CACHE_NO it goes ahead and tries to do the allocation.  We do this because
if we're doing the old slow way of caching we don't want to hold people up and
wait for everything to finish.  The problem with this is we could end up
discarding the space cache at some arbitrary point in the future, which means we
could very well end up allocating space that is either bad, or when the real
caching happens it could end up thinking the space isn't in use when it really
is and cause all sorts of other problems.

The solution is to add a new flag to indicate we are loading the free space
cache from disk, and always try to cache the block group if cache->cached !=
BTRFS_CACHE_FINISHED.  That way if we are loading the space cache anybody else
who tries to allocate from the block group will have to wait until it's finished
to make sure it completes successfully.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
2011-11-20 07:42:16 -05:00
Arnd Hannemann
5bb1468238 Btrfs: prefix resize related printks with btrfs:
For the user it is confusing to find something like:
[10197.627710] new size for /dev/mapper/vg0-usr_share is 3221225472
in kernel log, because it doesn't point directly to btrfs.

This patch prefixes those messages with "btrfs:" like other btrfs
related printks.

Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-20 07:42:16 -05:00
David Sterba
fadc0d8be4 btrfs: fix stat blocks accounting
Round inode bytes and delalloc bytes up to real blocksize before
converting to sector size. Otherwise eg. files smaller than 512
are reported with zero blocks due to incorrect rounding.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-20 07:42:15 -05:00
Li Zefan
52621cb6ed Btrfs: avoid unnecessary bitmap search for cluster setup
setup_cluster_no_bitmap() searches all the extents and bitmaps starting
from offset. Therefore if it returns -ENOSPC, all the bitmaps starting
from offset are in the bitmaps list, so it's sufficient to search from
this list in setup_cluser_bitmap().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-20 07:42:15 -05:00
Li Zefan
0f0fbf1d0e Btrfs: fix to search one more bitmap for cluster setup
Suppose there are two bitmaps [0, 256], [256, 512] and one extent
[100, 120] in the free space cache, and we want to setup a cluster
with offset=100, bytes=50.

In this case, there will be only one bitmap [256, 512] in the temporary
bitmaps list, and then setup_cluster_bitmap() won't search bitmap [0, 256].

The cause is, the list is constructed in setup_cluster_no_bitmap(),
and only bitmaps with bitmap_entry->offset >= offset will be added
into the list, and the very bitmap that convers offset has
bitmap_entry->offset <= offset.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-20 07:42:14 -05:00
Jan Schmidt
32240a913d btrfs: mirror_num should be int, not u64
My previous patch introduced some u64 for failed_mirror variables, this one
makes it consistent again.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-20 07:42:14 -05:00
Jeff Mahoney
745c4d8e16 btrfs: Fix up 32/64-bit compatibility for new ioctls
This patch casts to unsigned long before casting to a pointer and fixes
 the following warnings:
fs/btrfs/extent_io.c:2289:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
fs/btrfs/ioctl.c:2933:37: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
fs/btrfs/ioctl.c:2937:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
fs/btrfs/ioctl.c:3020:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
fs/btrfs/scrub.c:275:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
fs/btrfs/backref.c:686:27: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-11-20 07:42:13 -05:00
Chris Mason
387125fc72 Btrfs: fix barrier flushes
When btrfs is writing the super blocks, it send barrier flushes to make
sure writeback caching drives get all the metadata on disk in the
right order.

But, we have two bugs in the way these are sent down.  When doing
full commits (not via the tree log), we are sending the barrier down
before the last super when it should be going down before the first.

In multi-device setups, we should be waiting for the barriers to
complete on all devices before writing any of the supers.

Both of these bugs can cause corruptions on power failures.  We fix it
with some new code to send down empty barriers to all devices before
writing the first super.

Alexandre Oliva found the multi-device bug.  Arne Jansen did the async
barrier loop.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
Reported-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
2011-11-20 07:21:14 -05:00
Avi Kivity
95ef1e5292 KVM guest: prevent tracing recursion with kvmclock
Prevent tracing of preempt_disable() in get_cpu_var() in
kvm_clock_read(). When CONFIG_DEBUG_PREEMPT is enabled,
preempt_disable/enable() are traced and this causes the function_graph
tracer to go into an infinite recursion. By open coding the
preempt_disable() around the get_cpu_var(), we can use the notrace
version which prevents preempt_disable/enable() from being traced and
prevents the recursion.

Based on a similar patch for Xen from Jeremy Fitzhardinge.

Tested-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-20 10:53:48 +02:00
Marek Olšák
e70f224c19 drm/radeon/kms: add a CS ioctl flag not to rewrite tiling flags in the CS
This adds a new optional chunk to the CS ioctl that specifies optional flags
to the CS parser. Why this is useful is explained below. Note that some regs
no longer need the NOP relocation packet if this feature is enabled.
Tested on r300g and r600g with this flag disabled and enabled.

Assume there are two contexts sharing the same mipmapped tiled texture.
One context wants to render into the first mipmap and the other one
wants to render into the last mipmap. As you probably know, the hardware
has a MACRO_SWITCH feature, which turns off macro tiling for small mipmaps,
but that only applies to samplers.
(at least on r300-r500, though later hardware likely behaves the same)

So we want to just re-set the tiling flags before rendering (writing
packets), right? ... No. The contexts run in parallel, so they may
set the tiling flags simultaneously and then fire their command streams
also simultaneously. The last one setting the flags wins, the other one
loses.

Another problem is when one context wants to render into the first and
the last mipmap in one CS. Impossible. It must flush before changing
tiling flags and do the rendering into the smaller mipmaps in another CS.

Yet another problem is that writing copy_blit in userspace would be a mess
involving re-setting tiling flags to please the kernel, and causing races
with other contexts at the same time.

The only way out of this is to send tiling flags with each CS, ideally
with each relocation. But we already do that through the registers.
So let's just use what we have in the registers.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-20 07:53:13 +00:00
Linus Torvalds
a767835f6d Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (exynos4_tmu) Fix Kconfig dependency

[ Merging code in-flight, just because I can.  What timezone should I
  use?  - Linus ]
2011-11-19 10:56:01 -08:00
Al Viro
f1fd306a91 minixfs: kill manual hweight(), simplify
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-19 11:13:28 -05:00
Josh Boyer
016e8d44bc fs/minix: Verify bitmap block counts before mounting
Newer versions of MINIX can create filesystems that allocate an extra
bitmap block.  Mounting of this succeeds, but doing a statfs call will
result in an oops in count_free because of a negative number being used
for the bh index.

Avoid this by verifying the number of allocated blocks at mount time,
erroring out if there are not enough and make statfs ignore the extras
if there are too many.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=18792

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-19 11:13:26 -05:00
Srivatsa S. Bhat
501a708f18 PM / Suspend: Fix bug in suspend statistics update
After commit 2a77c46de1
(PM / Suspend: Add statistics debugfs file for suspend to RAM)
a missing pair of braces inside the state_store() function causes even
invalid arguments to suspend to be wrongly treated as failed suspend
attempts. Fix this.

[rjw: Put the hash/subject of the buggy commit into the changelog.]

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-19 14:37:57 +01:00
Jeremy Fitzhardinge
d633180c20 Xen: update MAINTAINER info
No longer at Citrix, still interested in Xen.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-19 06:21:38 -05:00
Jeff Ohlstein
27c9cd7e60 hrtimer: Fix extra wakeups from __remove_hrtimer()
__remove_hrtimer() attempts to reprogram the clockevent device when
the timer being removed is the next to expire. However,
__remove_hrtimer() reprograms the clockevent *before* removing the
timer from the timerqueue and thus when hrtimer_force_reprogram()
finds the next timer to expire it finds the timer we're trying to
remove.

This is especially noticeable when the system switches to NOHz mode
and the system tick is removed. The timer tick is removed from the
system but the clockevent is programmed to wakeup in another HZ
anyway.

Silence the extra wakeup by removing the timer from the timerqueue
before calling hrtimer_force_reprogram() so that we actually program
the clockevent for the next timer to expire.

This was broken by 998adc3 "hrtimers: Convert hrtimers to use
timerlist infrastructure".

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1321660030-8520-1-git-send-email-johlstei@codeaurora.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-11-19 12:17:37 +01:00
David Rientjes
a5c86e986f hugetlb: remove dummy definitions of HPAGE_MASK and HPAGE_SIZE
Dummy, non-zero definitions for HPAGE_MASK and HPAGE_SIZE were added in
51c6f666fc ("mm: ZAP_BLOCK causes redundant work") to avoid a divide
by zero in generic kernel code.

That code has since been removed, but probably should never have been
added in the first place: we don't want HPAGE_SIZE to act like PAGE_SIZE
for code that is working with hugepages, for example, when the
dependency on CONFIG_HUGETLB_PAGE has not been fulfilled.

Because hugepage size can differ from architecture to architecture, each
is required to have their own definitions for both HPAGE_MASK and
HPAGE_SIZE.  This is always done in arch/*/include/asm/page.h.

So, just remove the dummy and dangerous definitions since they are no
longer needed and reveals the correct dependencies.  Tested on
architectures using the definitions with allyesconfig: x86 (even with
thp), hppa, mips, powerpc, s390, sh3, sh4, sparc, and sparc64, and with
defconfig on ia64.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-19 06:15:59 -05:00
Linus Torvalds
208f6f6068 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  new helper: mount_subtree()
  switch create_mnt_ns() to saner calling conventions, fix double mntput() in nfs
  btrfs: fix double mntput() in mount_subvol()
2011-11-19 06:06:39 -05:00
Linus Torvalds
ab5c5f639b Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  MAINTAINERS: update XFS maintainer entry
  xfs: use doalloc flag in xfs_qm_dqattach_one()
2011-11-19 06:05:17 -05:00
Takashi Iwai
dbd1b5473c ALSA: hda - Add pin fix for Alienware M17x R3
Reported-by: Albert Pool <albertpool@solcon.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-19 11:41:30 +01:00
Linus Torvalds
c5e0c7825d Merge branch 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
* 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: Replace Paul Menage with Tejun Heo as cgroups maintainer
2011-11-18 22:23:23 -02:00
Linus Torvalds
5c6b4e84cb Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  random: Fix handing of arch_get_random_long in get_random_bytes()
  x86: Call stop_machine_text_poke() on all CPUs
  x86, ioapic: Only print ioapic debug information for IRQs belonging to an ioapic chip
  x86/mrst: Avoid reporting wrong nmi status
  x86/mrst: Add support for Penwell clock calibration
  x86/apic: Allow use of lapic timer early calibration result
  x86/apic: Do not clear nr_irqs_gsi if no legacy irqs
  x86/platform: Add a wallclock_init func to x86_platforms ops
  x86/mce: Make mce_chrdev_ops 'static const'
2011-11-18 22:16:18 -02:00
Linus Torvalds
ddddefa99d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
  cy82c693: fix PCI device selection
  icside: DMA support fix
  IDE: Don't powerdown Compaq Triflex IDE device on suspend
  piix: ICH7 MWDMA1 errata
2011-11-18 22:04:12 -02:00
Linus Torvalds
e27fc7e476 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Patch sun4v code sequences properly on module load.
  sparc: Kill custom io_remap_pfn_range().
  sparc: Stash orig_i0 into %g6 instead of %g2
  sparc: Fix handling of orig_i0 wrt. debugging when restarting syscalls.
  sparc: sigutil: Include <linux/errno.h>
2011-11-18 22:03:31 -02:00
Randy Dunlap
c9fb041ff1 staging: fix more ET131X build errors
ET131X is a network device, so it should depend on
NETDEVICES.  (This part won't be needed when the driver
moves to drivers/net/.)  It also uses PHYLIB interfaces,
so it should select PHYLIB.  Fixes these build errors:

ERROR: "phy_connect" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_find_first" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "mdiobus_register" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "mdiobus_alloc" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_stop" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_start" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "mdiobus_free" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "mdiobus_unregister" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_print_status" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_ethtool_gset" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_ethtool_sset" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_mii_ioctl" [drivers/staging/et131x/et131x.ko] undefined!

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: : Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 15:00:54 -08:00
Randy Dunlap
0337510f7c staging: et131x depends on NET
ET131X uses netdev interfaces so it should depend on NET.

Fixes these build errors:
ERROR: "ethtool_op_get_link" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "eth_validate_addr" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "register_netdev" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_connect" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_find_first" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "mdiobus_register" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "mdiobus_alloc" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "alloc_etherdev_mqs" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "netif_device_detach" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_stop" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "netif_device_attach" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_start" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "free_netdev" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "mdiobus_free" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "mdiobus_unregister" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "unregister_netdev" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "__netif_schedule" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_print_status" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "dev_kfree_skb_any" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "dev_alloc_skb" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "netif_rx" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "eth_type_trans" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "skb_put" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_ethtool_gset" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_ethtool_sset" [drivers/staging/et131x/et131x.ko] undefined!
ERROR: "phy_mii_ioctl" [drivers/staging/et131x/et131x.ko] undefined!

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 15:00:49 -08:00
Randy Dunlap
07de7a5ecb staging: slicoss depends on NET
The slicoss driver uses network interfaces so it should depend
on NET.  Fixes the following build errors:

ERROR: "eth_change_mtu" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "eth_validate_addr" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "register_netdev" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "alloc_etherdev_mqs" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "__netif_schedule" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "netif_rx" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "eth_type_trans" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "skb_put" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "skb_pull" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "__alloc_skb" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "free_netdev" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "unregister_netdev" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "consume_skb" [drivers/staging/slicoss/slicoss.ko] undefined!
ERROR: "dev_kfree_skb_irq" [drivers/staging/slicoss/slicoss.ko] undefined!

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Lior Dotan <liodot@gmail.com>
Cc: Christopher Harrer <charrer@alacritech.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 15:00:48 -08:00
Mark Einon
2e9ff8d917 linux-next: et131x: Fix build error when CONFIG_PM_SLEEP not enabled
Randy Dunlap reports that the ex131x driver doesn't build when CONFIG_PM_SLEEP is not enabled.
This bug was introduced when moving code around to remove some forward declarations earlier, the #endif part of #ifdef CONFIG_PM_SLEEP was not moved at the same time. Now fixed by moving it to its proper place.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 14:52:09 -08:00
Paul Menage
860ca0e6f7 cgroup: Replace Paul Menage with Tejun Heo as cgroups maintainer
As is probably painfully obvious, I don't have time to be a cgroups
maintainer.  Rather than have me continue to hope that I'll magically
find more spare time, instead Tejun has kindly agreed to take over the
role, along with Li Zefan.

-tj: added cgroup tree URL to MAINTAINERS file

Signed-off-by: Paul Menage <paul@paulmenage.org>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
LKML-Reference: <1321320612-57855-1-git-send-email-paul@paulmenage.org>
2011-11-18 14:28:40 -08:00
Srivatsa S. Bhat
aa9a7b1182 PM / Hibernate: Fix the early termination of test modes
Commit 2aede851dd
(PM / Hibernate: Freeze kernel threads after preallocating memory)
postponed the freezing of kernel threads to after preallocating memory
for hibernation. But while doing that, the hibernation test TEST_FREEZER
and the test mode HIBERNATION_TESTPROC were not moved accordingly.

As a result, when using these test modes, it only goes upto the freezing of
userspace and exits, when in fact it should go till the complete end of task
freezing stage, namely the freezing of kernel threads as well.

So, move these points of exit to appropriate places so that freezing of
kernel threads is also tested while using these test harnesses.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-18 23:02:42 +01:00
Eric Dumazet
9cc20b268a ipv4: fix redirect handling
commit f39925dbde (ipv4: Cache learned redirect information in
inetpeer.) introduced a regression in ICMP redirect handling.

It assumed ipv4_dst_check() would be called because all possible routes
were attached to the inetpeer we modify in ip_rt_redirect(), but thats
not true.

commit 7cc9150ebe (route: fix ICMP redirect validation) tried to fix
this but solution was not complete. (It fixed only one route)

So we must lookup existing routes (including different TOS values) and
call check_peer_redir() on them.

Reported-by: Ivan Zahariev <famzah@icdsoft.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18 15:24:32 -05:00
Alex Elder
c889132913 MAINTAINERS: update XFS maintainer entry
I will no longer be maintaining XFS for SGI.  Ben Myers
(bpm@sgi.com) has agreed to be the primary maintainer
for XFS in my place.  I will continue to be able to push
commits to the SGI XFS tree if required.  As such I will
continue to be a designated XFS maintainer, but plan to
serve in more of a backup role.

Signed-off-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2011-11-18 14:09:23 -06:00
Eric Dumazet
fb120c0a27 ping: dont increment ICMP_MIB_INERRORS
ping module incorrectly increments ICMP_MIB_INERRORS if feeded with a
frame not belonging to its own sockets.

RFC 2011 states that ICMP_MIB_INERRORS should count "the number of ICMP
messages which the entiry received but determined as having
ICMP-specific errors (bad ICMP checksums, bad length, etc.)."

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Flavio Leitner <fbl@redhat.com>
Acked-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18 14:38:59 -05:00
Andrew Worsley
b1ffb4c851 USB: Fix Corruption issue in USB ftdi driver ftdi_sio.c
Fix for ftdi_set_termios() glitching output

ftdi_set_termios() is constantly setting the baud rate, data bits and parity
unnecessarily on every call, . When called while characters are being
transmitted can cause the FTDI chip to corrupt the serial port bit stream
output by stalling the output half a bit during the output of a character.
Simple fix by skipping this setting if the baud rate/data bits/parity are
unchanged.

Signed-off-by: Andrew Worsley <amworsley@gmail.com>
Cc: stable <stable@vger.kernel.org>
----

  I had a brief run with strace on the getty and it was doing ioctl()s on
  each call but it didn't look relavant to the problem. I think the issue is
  that XON/XOFF flow control was being implmented via hardware - for the ixoff
  to allow the user to use XON/XOFF to control output. Unfortunately it would
  send 3 Control URBs updating all of the settings after each piece of input

  I am trying to work around the issue of gmail messing with the tab/spacing
  by submitting via SMTP via gmail which I believe should fix the issue.

  The patch is against v3.2-rc2 and compiles - but no additional testing in
  this kernel has been done.

  Thanks

   Andrew
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 11:27:16 -08:00
Ferenc Wagner
4aa3648c71 USB: option: add PID of Huawei E173s 3G modem
Signed-off-by: Ferenc Wagner <wferi@niif.hu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 11:18:46 -08:00
Alan Stern
c618759774 OHCI: final fix for NVIDIA problems (I hope)
Problems with NVIDIA's OHCI host controllers persist.  After looking
carefully through the spec, I finally realized that when a controller
is reset it then automatically goes into a SUSPEND state in which it
is completely quiescent (no DMA and no IRQs) and from which it will
not awaken until the system puts it into the OPERATIONAL state.

Therefore there's no need to worry about controllers being in the
RESET state for extended periods, or remaining in the OPERATIONAL
state during system shutdown.  The proper action for device
initialization is to put the controller into the RESET state (if it's
not there already) and then to issue a software reset.  Similarly, the
proper action for device shutdown is simply to do a software reset.

This patch (as1499) implements such an approach.  It simplifies
initialization and shutdown, and allows the NVIDIA shutdown-quirk code
to be removed.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Andre "Osku" Schmidt <andre.osku.schmidt@googlemail.com>
Tested-by: Arno Augustin <Arno.Augustin@web.de>
Cc: stable <stable@vger.kernel.org> [after tested in 3.2 for a while]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 11:18:45 -08:00
zheng.zhijian@zte.com.cn
46b5a277ed USB: option: release new PID for ZTE 3G modem
This patch adds new PIDs for ZTE 3G modem, after we confirm it and tested.
Thanks for Dan's work at kernel option devier.

Signed-off-by: Alvin.Zheng <zheng.zhijian@zte.com.cn>
Signed-off-by: wsalvin <wsalvin@yahoo.com.cn>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 11:16:37 -08:00
Jayachandran C
e253dec31b usb: Netlogic: Fix HC_LENGTH call in ehci-xls.c
Fix compile error, HC_LENGTH now takes two parameters and ehci
needs to be passed as the first parameter.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 11:16:36 -08:00
Michael Hennerich
6ac2afb3f4 misc: ad525x_dpot: Fix AD8400 spi transfer size.
AD8400 type devices require 16-bit command transfers.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 11:13:01 -08:00
Claudio Scordino
91a13c281d drivers/base/node.c: fix compilation error with older versions of gcc
Patch to fix the error message "directives may not be used inside a macro
argument" which appears when the kernel is compiled for the cris architecture.

Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-18 10:39:24 -08:00
Rabin Vincent
f9dfb65b05 ktest: Check parent options for iterated tests
Let's say we have "OUTPUT_DIR = build/${TEST_NAME}", and we're iterating
a test.  In the second iteration of a test, the TEST_NAME of the test
we're repeating is not used.  Instead, ${TEST_NAME} appears literally:

   touch /home/rabin/kernel/test/build/${TEST_NAME}/.config ... SUCCESS

Fix this by making __eval_option() check the parent test options
for a repeated test.

Link: http://lkml.kernel.org/r/1321616131-21352-2-git-send-email-rabin@rab.in

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2011-11-18 11:07:24 -05:00
Linus Torvalds
b684452383 Merge branch 'stable/for-linus-fixes-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/for-linus-fixes-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen-gntalloc: signedness bug in add_grefs()
  xen-gntalloc: integer overflow in gntalloc_ioctl_alloc()
  xen-gntdev: integer overflow in gntdev_alloc_map()
  xen:pvhvm: enable PVHVM VCPU placement when using more than 32 CPUs.
  xen/balloon: Avoid OOM when requesting highmem
  xen: Remove hanging references to CONFIG_XEN_PLATFORM_PCI
  xen: map foreign pages for shared rings by updating the PTEs directly
2011-11-18 13:18:07 -02:00
Linus Torvalds
15bd1cfb30 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
* 'for-linus' of git://git.kernel.dk/linux-block:
  block: add missed trace_block_plug
  paride: fix potential information leak in pg_read()
  bio: change some signed vars to unsigned
  block: avoid unnecessary plug list flush
  cciss: auto engage SCSI mid layer at driver load time
  loop: cleanup set_status interface
  include/linux/bio.h: use a static inline function for bio_integrity_clone()
  loop: prevent information leak after failed read
  block: Always check length of all iov entries in blk_rq_map_user_iov()
  The Windows driver .inf disables ASPM on all cciss devices. Do the same.
  backing-dev: ensure wakeup_timer is deleted
  block: Revert "[SCSI] genhd: add a new attribute "alias" in gendisk"
2011-11-18 09:34:35 -02:00
Linus Torvalds
9545eb61e5 Merge branch 'unicore32' of git://github.com/gxt/linux
* 'unicore32' of git://github.com/gxt/linux:
  unicore32, exec: remove redundant set_fs(USER_DS)
  unicore32: Fix typo 'PUV3_I2C'
  unicore32: drop unused Kconfig symbols
  rtc: rtc-puv3: Add __devinit and __devexit markers for probe and remove
  arch/unicore32: do not use EXTRA_AFLAGS or EXTRA_CFLAGS
  unicore32: fix build error for find bitops
2011-11-18 07:51:57 -02:00
Linus Torvalds
148b00b63a 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/signal32: Fix sigset_t conversion when copying to user
  powerpc: Fix atomic_xxx_return barrier semantics
  powerpc: Remove buggy 9-year-old test for binutils < 2.12.1
  powerpc/book3e-64: Fix debug support for userspace
  powerpc: Remove extraneous CONFIG_PPC_ADV_DEBUG_REGS define
  powerpc: Revert show_regs() define for readability
  powerpc/ps3: Fix SMP lockdep boot warning
  powerpc/ps3: Fix lost SMP IPIs
  powerpc: Add hvcall.h include to book3s_hv.c
  powerpc/trace: Add a dummy stack frame for trace_hardirqs_off
  powerpc: Copy down exception vectors after feature fixups
  powerpc: panic if we can't instantiate RTAS
  powerpc/4xx: Fix typos in kexec config dependencies
  powerpc/fsl: MCU_MPC8349EMITX wants I2C built-in, modular won't do...
  powerpc/fsl_udc_core: Fix dumb typo
  carma-fpga: Missed switch from of_register_platform_driver()
  powerpc: Fix build breakage in jump_label.c
2011-11-18 07:16:10 -02:00
Linus Torvalds
e36d5058db Merge branch 'for-linus' of git://git.selinuxproject.org/~jmorris/linux-security
* 'for-linus' of git://git.selinuxproject.org/~jmorris/linux-security:
  encrypted-keys: module build fixes
  encrypted-keys: fix error return code
  Smack: smackfs cipso seq read repair
2011-11-18 07:14:30 -02:00
Tomi Valkeinen
f95cb5ebd8 OMAPDSS: DISPC: skip scaling calculations when not scaling
Current code calculates scaling factors for video overlays even when the
overlays are not scaled. Change the code to skip calculations when not
scaling.

This optimizes the code a bit, but also fixes a problem when configuring
an overlay for a disabled display: if the display is disabled we don't
necessarily know the pixel clock used when the display is enabled, and
in some cases (like HDMI) the pixel clock is set to zero until a proper
video mode is set later. A wrong pixel clock will mess up the
scaling calculations, causing an error like:

omapdss DISPC error: failed to set up scaling, required fclk rate = 0
Hz, current fclk rate = 170666666 Hz

A proper fix would be to check later whether the clocks are enough for the
scaling, at the point when the overlay or display is actually enabled,
but this patch removes the problem for now.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-11-18 10:09:17 +02:00
Tomi Valkeinen
1c6bc89972 OMAPFB: fix compilation warnings due to missing include
Fix warnings similar to this by including module.h:

drivers/video/omap/dispc.c:276:1: warning: data definition has no type
or storage class
drivers/video/omap/dispc.c:276:1: warning: type defaults to 'int' in
declaration of 'EXPORT_SYMBOL'

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-11-18 10:09:17 +02:00
Tomi Valkeinen
ef319c6e09 OMAPDSS: HDMI: fix returned HDMI pixel clock
hdmi_get_pixel_clock() returns the pixel clock in Hz, but the pck is
stored as kHz. This means the return value has to be multiplied by 1000,
not by 10000 as the code did.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-11-18 10:09:16 +02:00
David S. Miller
0b64120cce sparc64: Patch sun4v code sequences properly on module load.
Some of the sun4v code patching occurs in inline functions visible
to, and usable by, modules.

Therefore we have to patch them up during module load.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 22:44:58 -08:00
stephen hemminger
282edcece3 sky2: fix hang in napi_disable
If IRQ was never initialized, then calling napi_disable() would hang.
Add more bookkeeping to track whether IRQ was ever initialized.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 21:43:57 -05:00
stephen hemminger
738a849c8e sky2: enforce minimum ring size
The hardware has a restriction that the minimum ring size possible
is 128. The number of elements used is controlled by tx_pending and
the overall number of elements in the ring tx_ring_size, therefore it
is okay to limit the number of elements in use to a small value (63)
but still provide a bigger ring.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 21:43:57 -05:00
David S. Miller
3e37fd3153 sparc: Kill custom io_remap_pfn_range().
To handle the large physical addresses, just make a simple wrapper
around remap_pfn_range() like MIPS does.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 18:17:59 -08:00
Veaceslav Falico
4a8bb7e27f bonding: Don't allow mode change via sysfs with slaves present
When changing mode via bonding's sysfs, the slaves are not initialized
correctly. Forbid to change modes with slaves present to ensure that every
slave is initialized correctly via bond_enslave().

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 19:31:54 -05:00
James Morris
b85c804d5a Merge branch 'encrypted-key-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity into for-linus 2011-11-18 11:17:23 +11:00
James Morris
fe8a0df46e Merge branch 'for-1111' of git://gitorious.org/smack-next/kernel into for-linus 2011-11-18 11:17:06 +11:00
Hector Palacios
d004e02405 timekeeping: add arch_offset hook to ktime_get functions
ktime_get and ktime_get_ts were calling timekeeping_get_ns()
but later they were not calling arch_gettimeoffset() so architectures
using this mechanism returned 0 ns when calling these functions.

This happened for example when running Busybox's ping which calls
syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts) which eventually
calls ktime_get. As a result the returned ping travel time was zero.

CC: stable@kernel.org
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-11-17 14:57:19 -08:00
David S. Miller
596a1b746c Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-11-17 17:31:49 -05:00
Rémi Denis-Courmont
38ff1edb52 f_phonet: fix page offset of first received fragment
We pull one byte (the MAC header) from the first fragment before the
fragment is actually appended. So the socket buffer length is 1, not 0.

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 17:03:02 -05:00
Takashi Iwai
04b38670cf drm/i915: Fix inconsistent backlight level during disabled
When the brightness property is inquired while the backlight is disabled,
the driver returns a wrong value (zero) because it probes the value after
the backlight was turned off.  This caused a black screen even after the
backlight is enabled again.  It should return the internal backlight_level
instead, so that it won't be influenced by the backlight-enable state.

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=41926
BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/872652

Tested-by: Kamal Mostafa <kamal@canonical.com>
Cc: Alex Davis <alex14641@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-17 12:59:58 -08:00
Kees Cook
f6f8285132 pstore: pass allocated memory region back to caller
The buf_lock cannot be held while populating the inodes, so make the backend
pass forward an allocated and filled buffer instead. This solves the following
backtrace. The effect is that "buf" is only ever used to notify the backends
that something was written to it, and shouldn't be used in the read path.

To replace the buf_lock during the read path, isolate the open/read/close
loop with a separate mutex to maintain serialized access to the backend.

Note that is is up to the pstore backend to cope if the (*write)() path is
called in the middle of the read path.

[   59.691019] BUG: sleeping function called from invalid context at .../mm/slub.c:847
[   59.691019] in_atomic(): 0, irqs_disabled(): 1, pid: 1819, name: mount
[   59.691019] Pid: 1819, comm: mount Not tainted 3.0.8 #1
[   59.691019] Call Trace:
[   59.691019]  [<810252d5>] __might_sleep+0xc3/0xca
[   59.691019]  [<810a26e6>] kmem_cache_alloc+0x32/0xf3
[   59.691019]  [<810b53ac>] ? __d_lookup_rcu+0x6f/0xf4
[   59.691019]  [<810b68b1>] alloc_inode+0x2a/0x64
[   59.691019]  [<810b6903>] new_inode+0x18/0x43
[   59.691019]  [<81142447>] pstore_get_inode.isra.1+0x11/0x98
[   59.691019]  [<81142623>] pstore_mkfile+0xae/0x26f
[   59.691019]  [<810a2a66>] ? kmem_cache_free+0x19/0xb1
[   59.691019]  [<8116c821>] ? ida_get_new_above+0x140/0x158
[   59.691019]  [<811708ea>] ? __init_rwsem+0x1e/0x2c
[   59.691019]  [<810b67e8>] ? inode_init_always+0x111/0x1b0
[   59.691019]  [<8102127e>] ? should_resched+0xd/0x27
[   59.691019]  [<8137977f>] ? _cond_resched+0xd/0x21
[   59.691019]  [<81142abf>] pstore_get_records+0x52/0xa7
[   59.691019]  [<8114254b>] pstore_fill_super+0x7d/0x91
[   59.691019]  [<810a7ff5>] mount_single+0x46/0x82
[   59.691019]  [<8114231a>] pstore_mount+0x15/0x17
[   59.691019]  [<811424ce>] ? pstore_get_inode.isra.1+0x98/0x98
[   59.691019]  [<810a8199>] mount_fs+0x5a/0x12d
[   59.691019]  [<810b9174>] ? alloc_vfsmnt+0xa4/0x14a
[   59.691019]  [<810b9474>] vfs_kern_mount+0x4f/0x7d
[   59.691019]  [<810b9d7e>] do_kern_mount+0x34/0xb2
[   59.691019]  [<810bb15f>] do_mount+0x5fc/0x64a
[   59.691019]  [<810912fb>] ? strndup_user+0x2e/0x3f
[   59.691019]  [<810bb3cb>] sys_mount+0x66/0x99
[   59.691019]  [<8137b537>] sysenter_do_call+0x12/0x26

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2011-11-17 12:58:07 -08:00
Rakib Mullick
457eafce61 drm, i915: Fix memory leak in i915_gem_busy_ioctl().
A call to i915_add_request() has been made in function i915_gem_busy_ioctl(). i915_add_request can fail,
so in it's exit path previously allocated memory needs to be freed.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-17 12:57:45 -08:00
Rafael J. Wysocki
88995e809f PM / shmobile: Fix build of sh7372_pm_init() for CONFIG_PM unset
Fix build regression introduced by commit 056879d2f2
(ARM: mach-shmobile: sh7372 A3SP no_suspend_console fix) by moving
the intialization of the A3SP domain to a separate function and
providing an empty definition of it for CONFIG_PM unset.

Reported-and-tested-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-17 21:39:55 +01:00
Rafael J. Wysocki
8b258cc8ac PM Sleep: Do not extend wakeup paths to devices with ignore_children set
Commit 4ca46ff3e0 (PM / Sleep: Mark
devices involved in wakeup signaling during suspend) introduced
the power.wakeup_path field in struct dev_pm_info to mark devices
whose children are enabled to wake up the system from sleep states,
so that power domains containing the parents that provide their
children with wakeup power and/or relay their wakeup signals are not
turned off.  Unfortunately, that introduced a PM regression on SH7372
whose power consumption in the system "memory sleep" state increased
as a result of it, because it prevented the power domain containing
the I2C controller from being turned off when some children of that
controller were enabled to wake up the system, although the
controller was not necessary for them to signal wakeup.

To fix this issue use the observation that devices whose
power.ignore_children flag is set for runtime PM should be treated
analogously during system suspend.  Namely, they shouldn't be
included in wakeup paths going through their children.  Since the
SH7372 I2C controller's power.ignore_children flag is set, doing so
will restore the previous behavior of that SOC.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-17 21:39:33 +01:00
Jiri Slaby
0c73c08ec7 TTY: ldisc, wait for ldisc infinitely in hangup
For /dev/console case, we do not kill all ldisc users. It's due to
redirected_tty_write test in __tty_hangup. In that case there still
might be a process waiting e.g. in n_tty_read for input.

We wait for such processes to disappear. The problem is that we use a
timeout. After this timeout, we continue closing the ldisc and start
freeing tty resources. It obviously leads to crashes when the other
process is woken.

So to fix this, we wait infinitely before reiniting the ldisc. (The
tiocsetd remains untouched -- times out after 5s.)

This is nicely reproducible with this run from shell:
  exec 0<>/dev/console 1<>/dev/console 2<>/dev/console
and stopping a getty like:
  systemctl stop serial-getty@ttyS0.service

The crash proper may be produced only under load or with constified
timing the same as for 92f6fa09b.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Dave Young <hidave.darkstar@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Dmitriy Matrosov <sgf.dma@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-17 11:36:12 -08:00
Jiri Slaby
300420722e TTY: ldisc, move wait idle to caller
It is the only place where reinit is called from. And we really need
to wait for the old ldisc to go once. Actually this is the place where
the waiting originally was (before removed and re-added later).

This will make the fix in the following patch easier to implement.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Dave Young <hidave.darkstar@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Dmitriy Matrosov <sgf.dma@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-17 11:36:12 -08:00
Jiri Slaby
df92d0561d TTY: ldisc, allow waiting for ldisc arbitrarily long
To fix a nasty bug in ldisc hup vs. reinit we need to wait infinitely
long for ldisc to be gone. So here we add a parameter to
tty_ldisc_wait_idle to allow that.

This is only a preparation for the real fix which is done in the
following patches.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Dave Young <hidave.darkstar@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Dmitriy Matrosov <sgf.dma@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-17 11:36:11 -08:00
John W. Linville
c4be3c2da1 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2011-11-17 14:15:47 -05:00
Linus Torvalds
a9098b3726 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] hpsa: Disable ASPM
  [SCSI] aacraid: controller hangs if kernel uses non-default ASPM policy
  [SCSI] mpt2sas: add missing allocation.
  [SCSI] Silencing 'killing requests for dead queue'
  [SCSI] fix WARNING: at drivers/scsi/scsi_lib.c:1704
2011-11-17 15:28:54 -02:00
Linus Torvalds
fec6489f6d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix the connection selection of ADCs on Cirrus codecs
  ALSA: hda - Update URLs in document
  ALSA: hda - move eld->spk_alloc fixup to hdmi_update_eld()
  ALSA: hda - delayed ELD repoll
  ALSA: hda - fix ELD memory leak
  ALSA: hda/realtek: remove redundant semicolon
  ALSA: hda - pwr_nids cleanup for IDT codecs
2011-11-17 15:13:37 -02:00
Russell King
e5489847d6 ARM: wire up process_vm_writev and process_vm_readv syscalls
These two syscalls were introduced during the last merge window.
Add the entries into the ARM call tables for them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-17 16:58:00 +00:00
Timo Juhani Lindfors
2391a0e067 ASoC: wm8753: Skip noop reconfiguration of DAI mode
This patch makes it possible to set DAI mode to its currently applied
value even if codec is active. This is necessary to allow

aplay -t raw -r 44100 -f S16_LE -c 2 < /dev/urandom &
alsactl store -f backup.state
alsactl restore -f backup.state

to work without returning errors. This patch is based on a patch sent
by Klaus Kurzmann <mok@fluxnetz.de>.

Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2011-11-17 16:48:25 +00:00
Marc Zyngier
2ed0e645f3 genirq: Don't allow per cpu interrupts to be suspended
The power management functions related to interrupts do not know
(yet) about per-cpu interrupts and end up calling the wrong
low-level methods to enable/disable interrupts.

This leads to all kind of interesting issues (action taken on one
CPU only, updating a refcount which is not used otherwise...).

The workaround for the time being is simply to flag these interrupts
with IRQF_NO_SUSPEND. At least on ARM, these interrupts are actually
dealt with at the architecture level.

Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1321446459-31409-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-11-17 17:44:04 +01:00
Will Deacon
bce34d1442 ARM: perf: initialise used_mask for fake PMU during validation
When validating an event group, we call pmu->get_event_idx for each
group member in order to check that the group can be scheduled as a
unit on an empty PMU.

As a result of 3fc2c830 ("ARM: perf: remove event limit from
pmu_hw_events"), the used_mask member of struct cpu_hw_events must be
setup explicitly, something which we don't do for the fake cpu_hw_events
used for validation.

This patch sets up an empty used_mask for the fake validation
cpu_hw_events, preventing NULL deferences when trying to get the event
index.

Reported-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-11-17 15:20:03 +00:00
Alexander Graf
bb75c627fb Revert "KVM: PPC: Add support for explicit HIOR setting"
This reverts commit a15bd354f0.

It exceeded the padding on the SREGS struct, rendering the ABI
backwards-incompatible.

Conflicts:

	arch/powerpc/kvm/powerpc.c
	include/linux/kvm.h

Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-17 16:30:25 +02:00
Gleb Natapov
e7fc6f93b4 KVM: VMX: Check for automatic switch msr table overflow
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-17 16:28:09 +02:00
Gleb Natapov
d7cd97964b KVM: VMX: Add support for guest/host-only profiling
Support guest/host-only profiling by switch perf msrs on
a guest entry if needed.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-17 16:28:00 +02:00
Gleb Natapov
8bf00a5299 KVM: VMX: add support for switching of PERF_GLOBAL_CTRL
Some cpus have special support for switching PERF_GLOBAL_CTRL msr.
Add logic to detect if such support exists and works properly and extend
msr switching code to use it if available. Also extend number of generic
msr switching entries to 8.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-17 16:27:54 +02:00
Christian Borntraeger
52e16b185f KVM: s390: announce SYNC_MMU
KVM on s390 always had a sync mmu. Any mapping change in userspace
mapping was always reflected immediately in the guest mapping.
- In older code the guest mapping was just an offset
- In newer code the last level page table is shared

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-17 16:25:52 +02:00
Christian Borntraeger
1eddb85f88 KVM: s390: Fix tprot locking
There is a potential host deadlock in the tprot intercept handling.
We must not hold the mmap semaphore while resolving the guest
address. If userspace is remapping, then the memory detection in
the guest is broken anyway so we can safely separate the
address translation from walking the vmas.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-17 16:25:48 +02:00
Cornelia Huck
bd59d3a444 KVM: s390: handle SIGP sense running intercepts
SIGP sense running may cause an intercept on higher level
virtualization, so handle it by checking the CPUSTAT_RUNNING flag.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-17 16:25:46 +02:00
Cornelia Huck
9e6dabeffd KVM: s390: Fix RUNNING flag misinterpretation
CPUSTAT_RUNNING was implemented signifying that a vcpu is not stopped.
This is not, however, what the architecture says: RUNNING should be
set when the host is acting on the behalf of the guest operating
system.

CPUSTAT_RUNNING has been changed to be set in kvm_arch_vcpu_load()
and to be unset in kvm_arch_vcpu_put().

For signifying stopped state of a vcpu, a host-controlled bit has
been used and is set/unset basically on the reverse as the old
CPUSTAT_RUNNING bit (including pushing it down into stop handling
proper in handle_stop()).

Cc: stable@kernel.org
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-17 16:25:43 +02:00
Linus Torvalds
aa1b052a34 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Fix irqfixup, irqpoll regression
2011-11-17 11:46:26 -02:00
Luck, Tony
bd29e568a4 fix typo/thinko in get_random_bytes()
If there is an architecture-specific random number generator we use it
to acquire randomness one "long" at a time.  We should put these random
words into consecutive words in the result buffer - not just overwrite
the first word again and again.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-17 11:42:54 -02:00
Wu Fengguang
468e6a20af writeback: remove vm_dirties and task->dirties
They are not used any more.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
2011-11-17 20:49:06 +08:00
Wu Fengguang
1df647197c writeback: hard throttle 1000+ dd on a slow USB stick
The sleep based balance_dirty_pages() can pause at most MAX_PAUSE=200ms
on every 1 4KB-page, which means it cannot throttle a task under
4KB/200ms=20KB/s. So when there are more than 512 dd writing to a
10MB/s USB stick, its bdi dirty pages could grow out of control.

Even if we can increase MAX_PAUSE, the minimal (task_ratelimit = 1)
means a limit of 4KB/s.
                                                       
They can eventually be safeguarded by the global limit check 
(nr_dirty < dirty_thresh). However if someone is also writing to an 
HDD at the same time, it'll get poor HDD write performance.
                                                       
We at least want to maintain good write performance for other devices
when one device is attacked by some "massive parallel" workload, or
suffers from slow write bandwidth, or somehow get stalled due to some 
error condition (eg. NFS server not responding).

For a stalled device, we need to completely block its dirtiers, too,
before its bdi dirty pages grow all the way up to the global limit and
leave no space for the other functional devices.

So change the loop exit condition to

	/*
	 * Always enforce global dirty limit; also enforce bdi dirty limit
	 * if the normal max_pause sleeps cannot keep things under control.
	 */
	if (nr_dirty < dirty_thresh &&
	    (bdi_dirty < bdi_thresh || bdi->dirty_ratelimit > 1))
		break;

which can be further simplified to

	if (task_ratelimit)
		break;

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
2011-11-17 20:39:32 +08:00
Randy Dunlap
869f8dfa52 platform/x86: fix dell-laptop function prototypes
Fix build warnings:
  drivers/platform/x86/dell-laptop.c:592:13: warning: function declaration isn't a prototype
  drivers/platform/x86/dell-laptop.c:599:13: warning: function declaration isn't a prototype

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-17 10:29:02 -02:00
Randy Dunlap
d29387e8de media/staging: fix allyesconfig build error
Fix x86 allyesconfig builds.  Builds fail due to a non-static variable
named 'debug' in drivers/staging/media/as102:

  arch/x86/built-in.o:arch/x86/kernel/entry_32.S:1296: first defined here
  ld: Warning: size of symbol `debug' changed from 90 in arch/x86/built-in.o to 4 in drivers/built-in.o

Thou shalt have no non-static identifiers that are named 'debug'.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Pierrick Hascoet <pierrick.hascoet@abilis.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-17 10:29:02 -02:00
Richard Zhao
f475058f48 ARM: imx6q: move clock register map to machine_desc.map_io
map_io is the only place to call iotable_init.

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
[shawn.guo: rename imx_clock_map_io() to imx6q_clock_map_io()]
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2011-11-17 20:14:01 +08:00
Donggeun Kim
3627902377 hwmon: (exynos4_tmu) Fix Kconfig dependency
Rename dependency of EXYNOS4_TMU in Kconfig to the existing one.

Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-11-17 03:16:19 -08:00
Jan Kara
249ec93c01 ocfs2: Use filemap_write_and_wait() instead of write_inode_now()
Since ocfs2 has no ->write_inode method, there's no point in calling
write_inode_now() from ocfs2_cleanup_delete_inode().  Use
filemap_write_and_wait() instead. This helps us to cleanup inode writing
interfaces...

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-11-17 02:18:57 -08:00
Mark Fasheh
df295d4a4b ocfs2: honor O_(D)SYNC flag in fallocate
We need to sync the transaction which updates i_size if the file is marked
as needing sync semantics.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-11-17 02:15:58 -08:00
Xiaowei.Hu
0393afea31 ocfs2: Add a missing journal credit in ocfs2_link_credits() -v2
With indexed_dir enabled, ocfs2 maintains a list of dirblocks having
space.

The credit calculation in ocfs2_link_credits() did not correctly account
for adding an entry that exactly fills a dirblock that triggers removing
that dirblock by changing the pointer in the previous block in the list.
The credit calculation did not account for that previous block.

To expose, do:

mkfs.ocfs2 -b 512 -M local /dev/sdX
mount /dev/sdX /ocfs2
mkdir /ocfs2/linkdir
touch /ocfs2/linkdir/file1
for i in `seq 1 29` ; do link /ocfs2/linkdir/file1
/ocfs2/linkdir/linklinklinklinklinklink$i; done
rm -f /ocfs2/linkdir/linklinklinklinklinklink10
sleep 8
link /ocfs2/linkdir/file1
/ocfs2/linkdir/linklinklinklinklinklinkaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Note:
The link names have been crafted for a 512 byte blocksize. Reproducing
with a larger blocksize will require longer (or more) links. The sleep
is important. We want jbd2 to commit the transaction so that the missing
block does not piggy back on account of the previous transaction.

Signed-off-by: XiaoweiHu <xiaowei.hu at oracle.com>
Reviewed-by: WengangWang <wen.gang.wang at oracle.com>
Reviewed-by: Sunil.Mushran <sunil.mushran at oracle.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-11-17 01:46:48 -08:00
Dan Magenheimer
e41d33af7c ocfs2: send correct UUID to cleancache initialization
ocfs2: Fix cleancache initialization call to correctly pass uuid

As reported by Steven Whitehouse in https://lkml.org/lkml/2011/5/27/221
the ocfs2 volume UUID is incorrectly passed to cleancache.
As a result, shared-ephemeral tmem pools will not actually
be created; instead they will be private (unshared) which
misses out on a major benefit of tmem.

Reported-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-11-17 01:46:48 -08:00
Wengang Wang
b8a0ae579f ocfs2: Commit transactions in error cases -v2
There are three cases found that in error cases, journal transactions are not
committed nor aborted. We should take care of these case by committing the
transactions. Otherwise, there would left a journal handle which will lead to
, in same process context, the comming ocfs2_start_trans() gets wrong credits.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-11-17 01:46:47 -08:00
Wengang Wang
8298524803 ocfs2: make direntry invalid when deleting it
When we deleting a direntry from a directory, if it's the first in a block we
invalid it by setting inode to 0; otherwise, we merge the deleted one to the
prior and contiguous direntry. And we don't truncate directories.

There is a problem for the later case since inode is not set to 0.
This problem happens when the caller passes a file position as parameter to
ocfs2_dir_foreach_blk(). If the position happens to point to a stale(not
the first, deleted in betweens of ocfs2_dir_foreach_blk()s) direntry, we are
not able to recognize its staleness. So that we treat it as a live one wrongly.

The fix is to set inode to 0 in both cases indicating the direntry is stale.
This won't introduce additional IOs.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-11-17 01:46:46 -08:00
Julia Lawall
fc9f899483 fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free
Memory allocated using kmem_cache_zalloc should be freed using
kmem_cache_free, not kfree.

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

// <smpl>
@@
expression x,e,e1,e2;
@@

x = kmem_cache_zalloc(e1,e2)
... when != x = e
?-kfree(x)
+kmem_cache_free(e1,x)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-11-17 01:46:46 -08:00
Francesco Virlinzi
102463b18d stmmac: fix pm functions avoiding sleep on spinlock
This patch fixes the pm functions to avoid the system
sleeps while a spinlock is taken.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 03:13:42 -05:00
Srinivas Kandagatla
989508ba60 stmmac: remove spin_lock in stmmac_ioctl.
This patch removes un-needed spin_lock in stmmac_ioctl while reading and
writing mdio registers. While holding spin_lock the code must be
atomic, which is not true in this case as both mdiobus_read and writes
have mutex locks.

Without this patch reading mdio registers via mii-tool results in below
BUG:
mii-tool -vvv eth0"
Using SIOCGMIIPHY=0x8947
BUG: sleeping function called from invalid context at kernel/mutex.c:287
in_atomic(): 1, irqs_disabled(): 0, pid: 614, name: mii-tool
2 locks held by mii-tool/614:
 #0:  (rtnl_mutex){......}, at: [<c01fd80c>] dev_ioctl+0x550/0x674
 #1:  (&priv->lock){......}, at: [<c01b34ec>] stmmac_ioctl+0x4c/0x78
[<c002ea14>] (unwind_backtrace+0x0/0xcc) from [<c0272c38>]
(mutex_lock_nested+0x24/0x35c)
[<c0272c38>] (mutex_lock_nested+0x24/0x35c) from [<c01b237c>]
(mdiobus_read+0x44/0x70)
[<c01b237c>] (mdiobus_read+0x44/0x70) from [<c01b0c64>]
(phy_mii_ioctl+0x4c/0x138)
[<c01b0c64>] (phy_mii_ioctl+0x4c/0x138) from [<c01b34fc>]
(stmmac_ioctl+0x5c/0x78)
[<c01b34fc>] (stmmac_ioctl+0x5c/0x78) from [<c01fcec8>]
(dev_ifsioc+0x2a4/0x2c8)
[<c01fcec8>] (dev_ifsioc+0x2a4/0x2c8) from [<c01fd81c>]
(dev_ioctl+0x560/0x674)
[<c01fd81c>] (dev_ioctl+0x560/0x674) from [<c00c36e0>]
(vfs_ioctl+0x2c/0x8c)
[<c00c36e0>] (vfs_ioctl+0x2c/0x8c) from [<c00c4130>]
(do_vfs_ioctl+0x530/0x578)
[<c00c4130>] (do_vfs_ioctl+0x530/0x578) from [<c00c41ac>]
(sys_ioctl+0x34/0x54)
[<c00c41ac>] (sys_ioctl+0x34/0x54) from [<c0028aa0>]
(ret_fast_syscall+0x0/0x2c)

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 03:13:42 -05:00
Giuseppe CAVALLARO
19e30c1437 stmmac: parameters auto-tuning through HW cap reg
New GMAC devices (newer than the databook 3.50a) have the
HW capability register that provides which features are actually
supported by the hardware.

On old devices many information have to be passed through the
platform, for example: enhanced descriptor structure,
TX COE etc. These are mandatory to properly configure the driver.
This remains still valid because the driver has to support old
Synopsys devices but now it's also able to override them using the
values from the HW capability register if supported.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 03:13:41 -05:00
Srinivas Kandagatla
c5b9b4e4b9 stmmac: fix advertising 1000Base capabilties for non GMII iface
This patch fixes the way to stop the 1000Base advertising
capabilties for non GMII interfaces.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 03:13:41 -05:00
Francesco Virlinzi
bbc1754639 stmmac: use mdelay on timeout of sw reset
This patch uses an mdelay to manage the timeout on
sw reset to be independant of cpu_clk.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Reviewed-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17 03:13:41 -05:00
Alexander Beregalov
aab9440453 libata: fix build without BMDMA
fix these errors:
drivers/ata/libata-sff.c:2538:3: error: implicit declaration of function
'ata_pci_bmdma_prepare_host'
drivers/ata/libata-sff.c:2549:40: error: 'ata_bmdma_interrupt'
undeclared (first use in this function)

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-11-17 02:11:42 -05:00
Rob Herring
ff95613500 [libata] ahci_platform: fix DT probing
The change in commit 904c04feaf "ahci_platform: Add the board_ids..."
doesn't work for the DT probing case as platform_get_device_id returns
NULL. Pick the default ahci_port_info in this case.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Cc: Richard Zhu <richard.zhu@linaro.org>
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-11-17 02:10:49 -05:00
Will Deacon
a313f4c55d powerpc/signal32: Fix sigset_t conversion when copying to user
On PPC64, put_sigset_t converts a sigset_t to a compat_sigset_t
before copying it to userspace. There is a typo in the case that
we have 4 words to copy, meaning that we corrupt the compat_sigset_t.

It appears that _NSIG_WORDS can't be greater than 2 at the moment
so this code is probably always optimised away anyway.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-17 16:41:10 +11:00
Benjamin Herrenschmidt
b97021f855 powerpc: Fix atomic_xxx_return barrier semantics
The Documentation/memory-barriers.txt document requires that atomic
operations that return a value act as a memory barrier both before
and after the actual atomic operation.

Our current implementation doesn't guarantee this. More specifically,
while a load following the isync can not be issued before stwcx. has
completed, that completion doesn't architecturally means that the
result of stwcx. is visible to other processors (or any previous stores
for that matter) (typically, the other processors L1 caches can still
hold the old value).

This has caused an actual crash in RCU torture testing on Power 7

This fixes it by changing those atomic ops to use new macros instead
of RELEASE/ACQUIRE barriers, called ATOMIC_ENTRY and ATMOIC_EXIT barriers,
which are then defined respectively to lwsync and sync.

I haven't had a chance to measure the performance impact (or rather
what I measured with kernel compiles is in the noise, I yet have to
find a more precise benchmark)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2011-11-17 16:26:07 +11:00
Kyle Moffett
a9a8f77ac7 powerpc: Remove buggy 9-year-old test for binutils < 2.12.1
Recent binutils refuses to assemble AltiVec opcodes when in e500/SPE
mode, as some of those opcodes alias the "SPE" instructions.  This
triggers an ancient binutils version check even when building a kernel
with CONFIG_ALTIVEC disabled.

In theory, the check could be conditionalized on CONFIG_ALTIVEC, but in
practice it has long outlived its utility.  It is virtually impossible
to find binutils older than 2.12.1 (released 2002) in the wild anymore.
Even ancient RedHat Enterprise Linux 4 has binutils-2.14.

To fix the kernel build when done natively on e500 systems with this new
binutils, the test is simply removed.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-17 16:26:07 +11:00
Kumar Gala
187b9f2aa7 powerpc/book3e-64: Fix debug support for userspace
With the introduction of CONFIG_PPC_ADV_DEBUG_REGS user space debug is
broken on Book-E 64-bit parts that support delayed debug events.  When
switch_booke_debug_regs() sets DBCR0 we'll start getting debug events as
MSR_DE is also set and we aren't able to handle debug events from kernel
space.

We can remove the hack that always enables MSR_DE and loads up DBCR0 and
just utilize switch_booke_debug_regs() to get user space debug working
again.

We still need to handle critical/debug exception stacks & proper
save/restore of state for those exception levles to support debug events
from kernel space like we have on 32-bit.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-17 16:26:07 +11:00
Kumar Gala
b95bc21914 powerpc: Remove extraneous CONFIG_PPC_ADV_DEBUG_REGS define
All of DebugException is already protected by CONFIG_PPC_ADV_DEBUG_REGS
there is no need to have another such ifdef inside the function.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-17 16:26:07 +11:00
Kumar Gala
ba28c9aae2 powerpc: Revert show_regs() define for readability
We had an existing ifdef for 4xx & BOOKE processors that got changed to
CONFIG_PPC_ADV_DEBUG_REGS.  The define has nothing to do with
CONFIG_PPC_ADV_DEBUG_REGS.  The define really should be:

 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)

and not

 #ifdef CONFIG_PPC_ADV_DEBUG_REGS

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-17 16:26:07 +11:00
Keith Packard
9a10f401a4 drm/i915: Use DPCD value for max DP lanes.
The BIOS VBT value for an eDP panel has been shown to be incorrect on
one machine, and we haven't found any machines where the DPCD value
was wrong, so we'll use the DPCD value everywhere.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-16 20:26:27 -08:00
Keith Packard
b34f1f0931 drm/i915: Initiate DP link training only on the lanes we'll be using
Limit the link training setting command to the lanes needed for the
current mode. It seems vaguely possible that a monitor will try to
train the other lanes and fail in some way, so this seems like the
safer plan.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-16 20:26:27 -08:00
Keith Packard
f2e8b18af9 drm/i915: Remove trailing white space
Found a couple of bare tabs in intel_dp.c

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-16 20:26:26 -08:00
Keith Packard
cdb0e95bf5 drm/i915: Try harder during dp pattern 1 link training
Instead of going through the sequence just once, run through the whole
set up to 5 times to see if something can work. This isn't part of the
DP spec, but the BIOS seems to do it, and given that link training
failure is so bad, it seems reasonable to follow suit.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-16 20:26:26 -08:00
Keith Packard
21264c638b drm/i915: Make DP prepare/commit consistent with DP dpms
Make sure the sequence of operations in all three functions makes
sense:

 1) The backlight must be off unless the screen is running
 2) The link must be running to turn the eDP panel on/off
 3) The CPU eDP PLL must be running until everything is off

Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-16 20:26:26 -08:00
Keith Packard
99ea7127a3 drm/i915: Let panel power sequencing hardware do its job
The panel power sequencing hardware tracks the stages of panel power
sequencing and signals when the panel is completely on or off. Instead
of blindly assuming the panel timings will work, poll the panel power
status register until it shows the correct values.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-16 20:26:26 -08:00
Keith Packard
417e822dee drm/i915: Treat PCH eDP like DP in most places
PCH eDP has many of the same needs as regular PCH DP connections,
including the DP_CTl bit settings, the TRANS_DP_CTL register.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-16 20:26:26 -08:00
Keith Packard
93f62dad5f drm/i915: Remove link_status field from intel_dp structure
No persistent data was ever stored here, so link_status is instead
allocated on the stack as needed.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-16 20:26:25 -08:00
Keith Packard
832dd3c17f drm/i915: Move common PCH_PP_CONTROL setup to ironlake_get_pp_control
Every usage of PCH_PP_CONTROL sets the PANEL_UNLOCK_REGS value to
ensure that writes will be respected, move this to a common function
to make the driver cleaner.

No functional changes.

Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-16 20:26:25 -08:00
Al Viro
ea441d1104 new helper: mount_subtree()
takes vfsmount and relative path, does lookup within that vfsmount
(possibly triggering automounts) and returns the result as root
of subtree suitable for return by ->mount() (i.e. a reference to
dentry and an active reference to its superblock grabbed, superblock
locked exclusive).

btrfs and nfs switched to it instead of open-coding the sucker.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-16 22:00:34 -05:00
stephen hemminger
d9fa7c86f1 sky2: version 1.30
Update version number.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 20:27:30 -05:00
stephen hemminger
00427a7387 sky2: used fixed RSS key
Rather than generating a different RSS key on each boot, just use
a predetermined value that will map same flow to same value on
every device.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 20:27:28 -05:00
stephen hemminger
b1cb825662 sky2: reduce default Tx ring size
The default Tx ring size for the sky2 driver is quite large and could
cause excess buffer bloat for many users. The minimum ring size
possible and still allow handling  the worst case packet on 64bit platforms
is 38 which gets rounded up to a power of 2. But most packets only require
a couple of ring elements.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 20:27:12 -05:00
stephen hemminger
926d0977b2 sky2: rename up/down functions
The code is clearer if the up/down functions are renamed to
open/close like other drivers.  Purely syntax change.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 20:27:11 -05:00
stephen hemminger
f9687c44d3 sky2: pci posting issues
A couple of the reset and setup paths have possible PCI posting issues.
When setting registers, a read is necessary to force the writes to complete.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 20:27:09 -05:00
stephen hemminger
1401a8008a sky2: fix hang on shutdown (and other irq issues)
There are several problems with recent change to how IRQ's are setup.
   * synchronize_irq in sky2_shutdown would hang because there
     was no IRQ setup.
   * when device was set to down, some IRQ bits left enabled so a
     hardware error would produce IRQ with no handler
   * quick link on Optima chip set was enabled without handler
   * suspend/resume would leave IRQ on with no handler if device
     was down

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 20:27:08 -05:00
Florian Fainelli
bbc13ab9d2 r6040: fix check against MCRO_HASHEN bit in r6040_multicast_list
We are checking whether the MCR0_HASHEN bit is set using a logical and
instead of bitwise and, fix that.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 20:24:52 -05:00
Seung-Woo Kim
ca22e3cc25 drm/exynos: fixed wrong err ptr usage and destroy call in exeception
- exynos_drm_buf_create() returns err pointer so NULL check is wrong.
- Case that exynos_gem_obj is not created, destroy call in exception
  handle lable uses this pointer. so instead buffer is directly used.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2011-11-17 10:05:39 +09:00
Joonyoung Shim
396464dfbb drm/exynos: Add disable of manager
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2011-11-17 10:05:39 +09:00
Luck, Tony
0d2f096b87 random: Fix handing of arch_get_random_long in get_random_bytes()
If there is an architecture-specific random number generator we use
it to acquire randomness one "long" at a time. We should put these
random words into consecutive words in the result buffer - not just
overwrite the first word again and again.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/4ec4061010261a4cb0@agluck-desktop.sc.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2011-11-16 16:41:02 -08:00
Eric Miao
e4b3bbe31d ARM: pxa168/gplugd: add the correct SSP device
There is no SSP0, but SSP1 is used on gplugd as an I2S port.

Acked-by: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-11-17 08:21:58 +08:00
Shawn Guo
9b7c547f77 ARM: Update mach-types to fix mxs build breakage
Add entry m28evk to fix the following mxs build breakage.

  CHK     include/generated/compile.h
  CC      arch/arm/mach-mxs/clock-mx28.o
arch/arm/mach-mxs/clock-mx28.c: In function 'clk_misc_init':
arch/arm/mach-mxs/clock-mx28.c:748: error: implicit declaration of
function 'machine_is_m28evk'
make[1]: *** [arch/arm/mach-mxs/clock-mx28.o] Error 1
make: *** [arch/arm/mach-mxs] Error 2

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2011-11-17 07:49:17 +08:00
Stephen Hemminger
377a467314 MAINTAINERS: change email address for shemminger
My old email account at linux-foundation is no longer usable after
the LF breakin.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:58:46 -05:00
Joe Perches
5e773fdc53 pch_gbe: Move #include of module.h
The first #include must be pch_gbe.h as it
does a #define of pr_fmt.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:38:03 -05:00
Dmitry Kravkov
eb2afd4a62 bnx2x: cache-in compressed fw image
Re-request fw from fs may fail for different reasons, once the fw was
loaded we won't release it until driver is removed.

This also resolves the boot problem when initial fw is located on initrd,
but rootfs is still unavailable, in this case device reset will fail due
to absence of fw files.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:37:15 -05:00
Jean-Christophe PLAGNIOL-VILLARD
eccab1ec87 net/cadence: enable by default NET_ATMEL
so the defconfig of the atmel continue to have the support of the network
as before

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:33:50 -05:00
stephen hemminger
fa2da8cdae bridge: correct IPv6 checksum after pull
Bridge multicast snooping of ICMPv6 would incorrectly report a checksum problem
when used with Ethernet devices like sky2 that use CHECKSUM_COMPLETE.
When bytes are removed from skb, the computed checksum needs to be adjusted.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Tested-by: Martin Volf <martin.volf.42@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:32:43 -05:00
Einar Lueck
0284a0fdf3 qeth: Reduce CPU consumption through less SIGA-r calls
Patch avoids SIGA-r calls in case of SIGA-r required. It only calls
SIGA-r if a threshold of free buffer is reached. CPU consumption is
reduced as a consequence.

Signed-off-by: Einar Lueck <elelueck@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:28:20 -05:00
Frank Blaschka
1d36cb479f qeth: l3 fix rcu splat in xmit
when use dst_get_neighbour to get neighbour, we need
rcu_read_lock to protect, since dst_get_neighbour uses
rcu_dereference.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:28:14 -05:00
Ursula Braun
1d503563f7 netiucv: reinsert dev_alloc_name for device naming
Invocation of dev_alloc_name() is re-inserted, because the created
net_device name is used to create the device name for the iucv bus.
This device is created before the register_netdev call.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:28:10 -05:00
Christian Borntraeger
7c01a8e56b qeth: remove WARN_ON leftover
The patch "qeth: exploit asynchronous delivery of storage blocks"
added a WARN_ON in qeth_schedule_recovery. A device recovery should
not cause a kernel warning. This is obviously a debugging  left-over
that we forgot to remove.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:28:04 -05:00
Ursula Braun
6cc31d09be qeth: return with -EPERM if sniffing is not enabled
Without appropriate configuration at the SE, a HiperSockets device
cannot be used for sniffing. Setting the sniffer attribute is rejected
with -EPERM.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 17:27:59 -05:00
Eric Dumazet
709e8697af tcp: clear xmit timers in tcp_v4_syn_recv_sock()
Simon Kirby reported divides by zero errors in __tcp_select_window()

This happens when inet_csk_route_child_sock() returns a NULL pointer :

We free new socket while we eventually armed keepalive timer in
tcp_create_openreq_child()

Fix this by a call to tcp_clear_xmit_timers()

[ This is a followup to commit 918eb39962 (net: add missing
bh_unlock_sock() calls) ]

Reported-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 16:57:45 -05:00
Al Viro
c133449587 switch create_mnt_ns() to saner calling conventions, fix double mntput() in nfs
Life is much saner if create_mnt_ns(mnt) drops mnt in case of error...
Switch it to such calling conventions, switch callers, fix double mntput() in
fs/nfs/super.c one.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-16 16:12:14 -05:00
Al Viro
8d514bbf37 btrfs: fix double mntput() in mount_subvol()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-16 16:06:09 -05:00
Dmitry Artamonow
20403e845f watchdog: fix initialisation printout in s3c2410_wdt
Looks like a typo creeped in, and driver prints
s3c2410-wdt s3c2410-wdt: watchdog active, reset abled, irq abled

instead of
s3c2410-wdt s3c2410-wdt: watchdog active, reset enabled, irq enabled

Also it may completely disinform about irq status, as it prints
"irq enabled" when S3C2410_WTCON_INTEN is in fact 0.

Fix it.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-11-16 22:04:17 +01:00
Mark Brown
f984910085 watchdog: Don't overwrite error value in wm831x_wdt_set_timeout()
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-11-16 22:00:10 +01:00
Mimi Zohar
9c69898783 encrypted-keys: module build fixes
Encrypted keys are encrypted/decrypted using either a trusted or
user-defined key type, which is referred to as the 'master' key.
The master key may be of type trusted iff the trusted key is
builtin or both the trusted key and encrypted keys are built as
modules.  This patch resolves the build dependency problem.

- Use "masterkey-$(CONFIG_TRUSTED_KEYS)-$(CONFIG_ENCRYPTED_KEYS)" construct
to encapsulate the above logic. (Suggested by Dimtry Kasatkin.)
- Fixing the encrypted-keys Makefile, results in a module name change
from encrypted.ko to encrypted-keys.ko.
- Add module dependency for request_trusted_key() definition

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-11-16 14:23:14 -05:00
Mimi Zohar
f4a0d5abef encrypted-keys: fix error return code
Fix request_master_key() error return code.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-11-16 14:23:13 -05:00
Dan Carpenter
99cb2ddcc6 xen-gntalloc: signedness bug in add_grefs()
gref->gref_id is unsigned so the error handling didn't work.
gnttab_grant_foreign_access() returns an int type, so we can add a
cast here, and it doesn't cause any problems.
gnttab_grant_foreign_access() can return a variety of errors
including -ENOSPC, -ENOSYS and -ENOMEM.

CC: stable@kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-11-16 12:13:48 -05:00
Dan Carpenter
21643e69a4 xen-gntalloc: integer overflow in gntalloc_ioctl_alloc()
On 32 bit systems a high value of op.count could lead to an integer
overflow in the kzalloc() and gref_ids would be smaller than
expected.  If the you triggered another integer overflow in
"if (gref_size + op.count > limit)" then you'd probably get memory
corruption inside add_grefs().

CC: stable@kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-11-16 12:13:47 -05:00
Dan Carpenter
fc6e0c3b90 xen-gntdev: integer overflow in gntdev_alloc_map()
The multiplications here can overflow resulting in smaller buffer
sizes than expected.  "count" comes from a copy_from_user().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-11-16 12:13:46 -05:00
Zhenzhong Duan
90d4f5534d xen:pvhvm: enable PVHVM VCPU placement when using more than 32 CPUs.
PVHVM running with more than 32 vcpus and pv_irq/pv_time enabled
need VCPU placement to work, or else it will softlockup.

CC: stable@kernel.org
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-11-16 12:13:44 -05:00
Daniel De Graaf
72e9cf2ab1 xen/balloon: Avoid OOM when requesting highmem
If highmem pages are requested from the balloon on a system without
highmem, the implementation of alloc_xenballooned_pages will allocate
all available memory trying to find highmem pages to return. Allow
low memory to be returned when highmem pages are requested to avoid
this loop.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-11-16 12:13:43 -05:00
Daniel De Graaf
5f76d7078c xen: Remove hanging references to CONFIG_XEN_PLATFORM_PCI
In 5fbdc10395 the XEN_PLATFORM_PCI config
option was removed, but references in header files remained. Clean up
those references.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-11-16 12:13:42 -05:00
David Vrabel
cd12909cb5 xen: map foreign pages for shared rings by updating the PTEs directly
When mapping a foreign page with xenbus_map_ring_valloc() with the
GNTTABOP_map_grant_ref hypercall, set the GNTMAP_contains_pte flag and
pass a pointer to the PTE (in init_mm).

After the page is mapped, the usual fault mechanism can be used to
update additional MMs.  This allows the vmalloc_sync_all() to be
removed from alloc_vm_area().

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
[v1: Squashed fix by Michal for no-mmu case]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-11-16 12:13:08 -05:00
Takashi Iwai
05ee7964a4 ALSA: hda - Fix the connection selection of ADCs on Cirrus codecs
spec->cur_adc isn't set until cs_capture_pcm_prepare() is called although
the driver tries to select the connection at init time and at auto-mic
switch.  This results in the access to the widget NID 0, which is
obviously invalid, also a wrong capture source.

This patch fixes the issue by issuing the connect-select verb conditionally
at appropriate places.

Reported-and-tested-by: Dylan Reid <dgreid@chromium.org>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 18:05:11 +01:00
Axel Lin
dc2c83582e ARM: SAMSUNG: include linux/types.h at gpio-cfg.h
Include linux/types.h to fix below build error:

  CC      drivers/power/max8903_charger.o
In file included from arch/arm/plat-samsung/include/plat/gpio-fns.h:27,
                 from arch/arm/mach-s3c2410/include/mach/gpio-fns.h:1,
                 from arch/arm/mach-s3c2410/include/mach/gpio.h:27,
                 from /home/axel/repos/git/linux-2.6/arch/arm/include/asm/gpio.h:5,
                 from include/linux/gpio.h:30,
                 from drivers/power/max8903_charger.c:23:
arch/arm/plat-samsung/include/plat/gpio-cfg.h:27: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'samsung_gpio_pull_t'
arch/arm/plat-samsung/include/plat/gpio-cfg.h:28: error: expected '=', ',', ';', 'asm' or '__attribute__' before 's5p_gpio_drvstr_t'
arch/arm/plat-samsung/include/plat/gpio-cfg.h:55: error: expected specifier-qualifier-list before 'samsung_gpio_pull_t'
arch/arm/plat-samsung/include/plat/gpio-cfg.h:146: error: expected declaration specifiers or '...' before 'samsung_gpio_pull_t'
arch/arm/plat-samsung/include/plat/gpio-cfg.h:154: error: expected '=', ',', ';', 'asm' or '__attribute__' before 's3c_gpio_getpull'
arch/arm/plat-samsung/include/plat/gpio-cfg.h:173: error: expected declaration specifiers or '...' before 'samsung_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:178: error: '__force' undeclared (first use in this function)
arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: (Each undeclared identifier is reported only once
arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: for each function it appears in.)
arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: expected ')' before 'samsung_gpio_pull_t'
arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: expected ')' before numeric constant
arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: too many arguments to function 's3c_gpio_cfgall_range'
arch/arm/plat-samsung/include/plat/gpio-cfg.h: At top level:
arch/arm/plat-samsung/include/plat/gpio-cfg.h:197: error: expected '=', ',', ';', 'asm' or '__attribute__' before 's5p_gpio_get_drvstr'
arch/arm/plat-samsung/include/plat/gpio-cfg.h:208: error: expected declaration specifiers or '...' before 's5p_gpio_drvstr_t'
make[2]: *** [drivers/power/max8903_charger.o] Error 1
make[1]: *** [drivers/power] Error 2
make: *** [drivers] Error 2

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-11-17 01:17:18 +09:00
Kukjin Kim
a69e4c28b2 ARM: SAMSUNG: inclusion export.h instead of module.h
Only for THIS_MODULE, the <linux/export.h> file should be
added instead of <linux/module.h>.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-11-17 01:14:38 +09:00
Kukjin Kim
12b248eba4 ARM: S5P: Fix export.h inclusion
Commit 32aaeffbd4 ("Merge branch 'modsplit-Oct31 2011'...")
breaks build like following and this fixes it to add inclusion
<linux/export.h>.

arch/arm/plat-s5p/sysmmu.c:302: error: 'THIS_MODULE' undeclared here (not in a function)

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-11-17 01:13:34 +09:00
Jan Kara
499d05ecf9 mm: Make task in balance_dirty_pages() killable
There is no reason why task in balance_dirty_pages() shouldn't be killable
and it helps in recovering from some error conditions (like when filesystem
goes in error state and cannot accept writeback anymore but we still want to
kill processes using it to be able to unmount it).

There will be follow up patches to further abort the generic_perform_write()
and other filesystem write loops, to avoid large write + SIGKILL combination
exceeding the dirty limit and possibly strange OOM.

Reported-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Tested-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Reviewed-by: Neil Brown <neilb@suse.de>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
2011-11-16 19:53:44 +08:00
Will Deacon
eaa142ca3d ARM: mach-imx: convert logical CPU numbers to physical numbers
This patch uses the new cpu_logical_map() macro for converting logical
CPU numbers into physical numbers when releasing CPUs during the SMP
boot and CPU hotplug paths.

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-11-16 10:56:53 +00:00
Will Deacon
bf14fc54d6 ARM: highbank: convert logical CPU numbers to physical numbers
This patch uses the new cpu_logical_map() macro for converting logical
CPU numbers into physical numbers when releasing CPUs during the SMP
boot and CPU hotplug paths.

Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-11-16 10:56:53 +00:00
Will Deacon
14e25c5eeb ARM: PMU: remove pmu_init declaration
pmu_init no longer exists, so don't declare it in asm/pmu.h.

Reported-by: Pawel Moll <Pawel.Moll@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-11-16 10:06:57 +00:00
Will Deacon
ec84d529b6 ARM: PMU: re-export release_pmu symbol to modules
Commit b0e89590 ("ARM: PMU: move CPU PMU platform device handling and
init into perf") inadvertently removed the EXPORT_SYMBOL_GPL on
release_pmu, so out-of-tree modules can no longer play nice with perf,
even if they tried in the first place.

This patch re-exports the symbol.

Reported-by: Jon Medhurst (Tixy) <jon.medhurst@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-11-16 10:06:42 +00:00
Takashi Iwai
25d7d59d1f ALSA: hda - Update URLs in document
Some stuff was moved from kernel.org to other places.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 10:53:38 +01:00
Wu Fengguang
2d1b439bdb ALSA: hda - move eld->spk_alloc fixup to hdmi_update_eld()
It looks more natural and saves two lines of code.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 10:44:58 +01:00
Wu Fengguang
744626dada ALSA: hda - delayed ELD repoll
The Intel HDMI chips (ironlake at least) are found to have ~250ms delay
between the ELD_Valid=1 hotplug event is send and the ELD buffer becomes
actually readable. During the time the ELD buffer is mysteriously all 0.

Fix it by scheduling a delayed work to re-read ELD buffer after 300ms.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 10:44:42 +01:00
Wu Fengguang
b95d68b817 ALSA: hda - fix ELD memory leak
memset(eld) clears eld->proc_entry which will leak the struct
snd_info_entry when unloading module.

Fix it by
- memset only the fields before eld->eld_buffer
- set eld->eld_valid to true _after_ all eld fields have been filled

Cc: <stable@kernel.org>
Cc: Pierre-louis Bossart <pierre-louis.bossart@intel.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 10:44:21 +01:00
Linus Torvalds
6aaf05f472 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] topology: fix topology on z10 machines
  [S390] crypto: avoid MSA3 and MSA4 instructions in ESA mode
  [S390] avoid STCKF if running in ESA mode
  [S390] zfcpdump: Do not initialize zfcpdump in kdump mode
  [S390] ap: Setup processing for messages in request queue.
  [S390] Kconfig: Select CONFIG_KEXEC for CONFIG_CRASH_DUMP
  [S390] incorrect note program header
  [S390] pfault: ignore leftover completion interrupts
  [S390] fix pgste update logic
  [S390] wire up process_vm syscalls
2011-11-16 07:33:50 -02:00
Shaohua Li
019ceb7d5d block: add missed trace_block_plug
After flush plug list, the list has no request, so we need to add a
trace_block_plug().

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-16 09:21:50 +01:00
Dan Carpenter
a2c2a0e668 paride: fix potential information leak in pg_read()
Smatch has a new check for Rosenberg type information leaks where structs
are copied to the user with uninitialized stack data in them.  i In this
case, the pg_write_hdr struct has a hole in it.

struct pg_write_hdr {
        char                       magic;                /*     0     1 */
        char                       func;                 /*     1     1 */
        /* XXX 2 bytes hole, try to pack */
        int                        dlen;                 /*     4     4 */

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Tim Waugh <tim@cyberelk.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-16 09:21:50 +01:00
Dan Carpenter
121f099412 bio: change some signed vars to unsigned
This is just a cleanup patch to silence a static checker warning.

The problem is that we cap "nr_iovecs" so it can't be larger than
"UIO_MAXIOV" but we don't check for negative values.  It turns out this is
prevented at other layers, but logically it doesn't make sense to have
negative nr_iovecs so making it unsigned is nicer.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-16 09:21:50 +01:00
Shaohua Li
3540d5e89b block: avoid unnecessary plug list flush
get_request_wait() could sleep and flush the plug list.  If the list is
already flushed, don't flush again.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-16 09:21:50 +01:00
Stephen M. Cameron
0007a4c90a cciss: auto engage SCSI mid layer at driver load time
A long time ago, probably in 2002, one of the distros, or maybe more than
one, loaded block drivers prior to loading the SCSI mid layer.  This meant
that the cciss driver, being a block driver, could not engage the SCSI mid
layer at init time without panicking, and relied on being poked by a
userland program after the system was up (and the SCSI mid layer was
therefore present) to engage the SCSI mid layer.

This is no longer the case, and cciss can safely rely on the SCSI mid
layer being present at init time and engage the SCSI mid layer straight
away.  This means that users will see their tape drives and medium
changers at driver load time without need for a script in /etc/rc.d that
does this:

for x in /proc/driver/cciss/cciss*
do
	echo "engage scsi" > $x
done

However, if no tape drives or medium changers are detected, the SCSI mid
layer will not be engaged.  If a tape drive or medium change is later
hot-added to the system it will then be necessary to use the above script
or similar for the device(s) to be acceesible.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-16 09:21:49 +01:00
Dmitry Monakhov
7035b5df3c loop: cleanup set_status interface
1) Anyone who has read access to loopdev has permission to call set_status
   and may change important parameters such as lo_offset, lo_sizelimit and
   so on, which contradicts to read access pattern and definitely equals
   to write access pattern.
2) Add lo_offset over i_size check to prevent blkdev_size overflow.
   ##Testcase_bagin
   #dd if=/dev/zero of=./file bs=1k count=1
   #losetup /dev/loop0 ./file
   /* userspace_application */
   struct loop_info64 loinf;
   fd = open("/dev/loop0", O_RDONLY);
   ioctl(fd, LOOP_GET_STATUS64, &loinf);
   /* Set offset to any value which is bigger than i_size, and sizelimit
    * to nonzero value*/
   loinf.lo_offset = 4096*1024;
   loinf.lo_sizelimit = 1024;
   ioctl(fd, LOOP_SET_STATUS64, &loinf);
   /* After this loop device will have size similar to 0x7fffffffffxxxx */
   #blockdev --getsz /dev/loop0
   ##OUTPUT: 36028797018955968
   ##Testcase_end

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-16 09:21:49 +01:00
Stephen Rothwell
0c614e2d3e include/linux/bio.h: use a static inline function for bio_integrity_clone()
When CONFIG_BLK_DEV_INTEGRITY is not set, we get these warnings:

drivers/md/dm.c: In function 'split_bvec':
drivers/md/dm.c:1061:3: warning: statement with no effect
drivers/md/dm.c: In function 'clone_bio':
drivers/md/dm.c:1088:3: warning: statement with no effect

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-16 09:21:48 +01:00
Dmitry Monakhov
3bb9068278 loop: prevent information leak after failed read
If read was not fully successful we have to fail whole bio to prevent
information leak of old pages

##Testcase_begin
dd if=/dev/zero of=./file bs=1M count=1
losetup /dev/loop0 ./file -o 4096
truncate -s 0 ./file
# OOps loop offset is now beyond i_size, so read will silently fail.
# So bio's pages would not be cleared, may which result in information leak.
hexdump -C /dev/loop0
##testcase_end

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-16 09:21:48 +01:00
Geoff Levand
7eaf09eefe powerpc/ps3: Fix SMP lockdep boot warning
Move the PS3 IPI message setup from ps3_smp_setup_cpu() to ps3_smp_probe().

Fixes startup warnings like these:

  ------------[ cut here ]------------
  WARNING: at kernel/lockdep.c:2649
  Modules linked in:
  ...
  ---[ end trace 31fd0ba7d8756001 ]---

Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:47:54 +11:00
Geoff Levand
72f3bea075 powerpc/ps3: Fix lost SMP IPIs
Fixes the PS3 bootup hang introduced in 3.0-rc1 by:

  commit 317f394160
  sched: Move the second half of ttwu() to the remote cpu

Move the PS3's LV1 EOI call lv1_end_of_interrupt_ext() from ps3_chip_eoi()
to ps3_get_irq() for IPI messages.

If lv1_send_event_locally() is called between a previous call to
lv1_send_event_locally() and the coresponding call to
lv1_end_of_interrupt_ext() the second event will not be delivered to the
target cpu.

The PS3's SMP IPIs are implemented using lv1_send_event_locally(), so if two
IPI messages of the same type are sent to the same target in a relatively
short period of time the second IPI event can become lost when
lv1_end_of_interrupt_ext() is called from ps3_chip_eoi().

CC: stable@kernel.org
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:47:54 +11:00
Michael Neuling
de1d9248ea powerpc: Add hvcall.h include to book3s_hv.c
If you build with KVM and UP it fails with the following due to a
missing include.

/arch/powerpc/kvm/book3s_hv.c: In function 'do_h_register_vpa':
arch/powerpc/kvm/book3s_hv.c:156:10: error: 'H_PARAMETER' undeclared (first use in this function)
arch/powerpc/kvm/book3s_hv.c:156:10: note: each undeclared identifier is reported only once for each function it appears in
arch/powerpc/kvm/book3s_hv.c:192:12: error: 'H_RESOURCE' undeclared (first use in this function)
arch/powerpc/kvm/book3s_hv.c:222:9: error: 'H_SUCCESS' undeclared (first use in this function)
arch/powerpc/kvm/book3s_hv.c: In function 'kvmppc_pseries_do_hcall':
arch/powerpc/kvm/book3s_hv.c:228:30: error: 'H_SUCCESS' undeclared (first use in this function)
arch/powerpc/kvm/book3s_hv.c:232:7: error: 'H_CEDE' undeclared (first use in this function)
arch/powerpc/kvm/book3s_hv.c:234:7: error: 'H_PROD' undeclared (first use in this function)
arch/powerpc/kvm/book3s_hv.c:238:10: error: 'H_PARAMETER' undeclared (first use in this function)
arch/powerpc/kvm/book3s_hv.c:250:7: error: 'H_CONFER' undeclared (first use in this function)
arch/powerpc/kvm/book3s_hv.c:252:7: error: 'H_REGISTER_VPA' undeclared (first use in this function)
make[2]: *** [arch/powerpc/kvm/book3s_hv.o] Error 1

Signed-off-by: Michael Neuling <mikey@neuling.org>
cc: stable@kernel.org (3.1 only)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:47:54 +11:00
Kevin Hao
2cd76629f6 powerpc/trace: Add a dummy stack frame for trace_hardirqs_off
The trace_hardirqs_off will use CALLER_ADDR0 and CALLER_ADDR1.
If an exception occurs in user mode, there is only one stack frame
on the stack and accessing the CALLER_ADDR1 will causes the following
call trace. So we create a dummy stack frame to make
trace_hardirqs_off happy.

WARNING: at kernel/smp.c:459
Modules linked in:
NIP: c0093280 LR: c00930a0 CTR: c0010780
REGS: edb87ae0 TRAP: 0700   Not tainted  (3.1.0)
MSR: 00021002 <ME,CE>  CR: 28002888  XER: 00000000
TASK = edce2ac0[17658] 'mthread-lock-on' THREAD: edb86000 CPU: 5
GPR00: 00000001 edb87b90 edce2ac0 00000005 c0019594 edb87bd8 00000001 00000fe3
GPR08: 00041000 c084138c 4e20120d edb87b90 48002888 1001aa7c 00000000 00000000
GPR16: 48830000 10012a8c 00000000 10000af4 00000001 c0810000 00000000 00000000
GPR24: ee9aa920 c0816a18 00000000 00000005 c0019594 edb87bd8 ee20178c edb87b90
NIP [c0093280] smp_call_function_many+0x214/0x2b4
LR [c00930a0] smp_call_function_many+0x34/0x2b4
Call Trace:
[edb87b90] [c00930a0] smp_call_function_many+0x34/0x2b4 (unreliable)
[edb87bd0] [c00194ec] __flush_tlb_page+0xac/0x100
[edb87c00] [c001957c] flush_tlb_page+0x3c/0x54
[edb87c10] [c00180ac] ptep_set_access_flags+0x74/0x12c
[edb87c40] [c0128068] handle_pte_fault+0x2f0/0x9ac
[edb87cb0] [c0128c3c] handle_mm_fault+0x104/0x1dc
[edb87ce0] [c05f40f4] do_page_fault+0x2dc/0x630
[edb87e50] [c001078c] handle_page_fault+0xc/0x80

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:47:54 +11:00
Anton Blanchard
d715e433b7 powerpc: Copy down exception vectors after feature fixups
kdump fails because we try to execute an HV only instruction. Feature
fixups are being applied after we copy the exception vectors down to 0
so they miss out on any updates.

We have always had this issue but it only became critical in v3.0
when we added CFAR support (breaks POWER5) and v3.1 when we added
POWERNV (breaks everyone).

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@kernel.org> [v3.0+]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:47:54 +11:00
Anton Blanchard
6d1e2c6c1a powerpc: panic if we can't instantiate RTAS
I had to debug a strange situation where all manner of things were
failing. SMT threads, storage and network were all completely broken.

The root cause was we couldn't find enough memory to instantiate RTAS -
this was a network install so the initrd was huge.

Instead of limping along and failing in mysterious ways we should just
panic up front if RTAS exists and we can't allocate space for it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:47:54 +11:00
Suzuki Poulose
bbc24a25e2 powerpc/4xx: Fix typos in kexec config dependencies
Kexec is not supported on 47x. 47x is a variant of 44x with slightly
different MMU and SMP support. There was a typo in the config dependency
for kexec. This patch fixes the same.

Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc:	Kumar Gala <galak@kernel.crashing.org>
Cc:	Josh Boyer <jwboyer@gmail.com>
Cc:	linux ppc dev <linuxppc-dev@lists.ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:47:54 +11:00
Al Viro
82640a6b91 powerpc/fsl: MCU_MPC8349EMITX wants I2C built-in, modular won't do...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:25:19 +11:00
Al Viro
5f861ed402 powerpc/fsl_udc_core: Fix dumb typo
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:25:19 +11:00
Al Viro
4933402075 carma-fpga: Missed switch from of_register_platform_driver()
... by 6 months

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:25:19 +11:00
Al Viro
9c8b39077b powerpc: Fix build breakage in jump_label.c
Should do what other architectures do and wrap all that code into
the appropriate ifdef

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-16 14:25:19 +11:00
Mathias Krause
ed96dfbcfe unicore32, exec: remove redundant set_fs(USER_DS)
The address limit is already set in flush_old_exec() so this
set_fs(USER_DS) is redundant.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-11-16 10:50:09 +08:00
Paul Bolle
8889023a4a unicore32: Fix typo 'PUV3_I2C'
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-11-16 10:48:21 +08:00
Linus Torvalds
ff0ff78068 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: lantiq: use export.h in favour of module.h
  MAINTAINERS: The MIPS git tree has moved.
  MIPS: Fix build error due to missing inclusion of <linux/export.h>.
  MIPS: ASID conflict after CPU hotplug
  MIPS: Octeon: Fix compile error in arch/mips/cavium-octeon/flash_setup.c
  MIPS: errloongson2_clock: Fix build error by including linux/module.h
  STAGING: octeon-ethernet: Fix compile error caused by skb_frag_struct change
  MIPS: Hook up process_vm_readv and process_vm_writev system calls.
  MIPS: Kernel hangs occasionally during boot.
  MIPS: Octeon: Mark SMP-IPI interrupt as IRQF_NO_THREAD
  MIPS: BCM47xx: fix build with GENERIC_GPIO configuration
  MIPS: NXP: Remove unused source files.
  MIPS: Yosemite, Emma: Fix off-by-two in arcs_cmdline buffer size check
2011-11-15 22:44:45 -02:00
Linus Torvalds
b1914cb2f3 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms: fix segfault in pm rework
  drm/radeon/kms: fix up gpio i2c mask bits for r4xx
  drm/radeon: add some missing FireMV pci ids
  vgaarb: a NULL bridge is acceptable for root devices.
  drm: Remove utterly bogus preempt_disable() sections
2011-11-15 22:43:32 -02:00
Hillf Danton
ea4039a34c hugetlb: release pages in the error path of hugetlb_cow()
If we fail to prepare an anon_vma, the {new, old}_page should be released,
or they will leak.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-15 22:41:52 -02:00
Jean Delvare
66e13e66b6 drivers/firmware/dmi_scan.c: make dmi_name_in_vendors more focused
The current implementation of dmi_name_in_vendors() is an invitation to
lazy coding and false positives [1].  Searching for a string in 8 know
what you're looking for, so you should know where to look.  strstr isn't
fast, especially when it fails, so we should avoid calling it when it
just can't succeed.

Looking at the current users of the function, it seems clear to me that
they are looking for a system or board vendor name, so let's limit
dmi_name_in_vendors to these two DMI fields.  This much better matches
the function name, BTW.

[1] We currently have code looking for short names in DMI data, such as
"IBM", "ASUS" or "Acer".  I let you guess what will happen the day other
vendors ship products named, for example, "SCHREIBMEISTER", "PEGASUS" or
"Acerola".

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-15 22:41:51 -02:00
Michal Hocko
5aecc85abd oom: do not kill tasks with oom_score_adj OOM_SCORE_ADJ_MIN
Commit c9f01245 ("oom: remove oom_disable_count") has removed the
oom_disable_count counter which has been used for early break out from
oom_badness so we could never select a task with oom_score_adj set to
OOM_SCORE_ADJ_MIN (oom disabled).

Now that the counter is gone we are always going through heuristics
calculation and we always return a non zero positive value.  This means
that we can end up killing a task with OOM disabled because it is
indistinguishable from regular tasks with 1% resp.  CAP_SYS_ADMIN tasks
with 3% usage of memory or tasks with oom_score_adj set but OOM enabled.

Let's break out early if the task should have OOM disabled.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Ying Han <yinghan@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-15 22:41:51 -02:00
Paul Bolle
001ef5e455 drivers/misc/eeprom: fix dependecy on 'PPC_MPC5200_GPIO'
The driver for the DigsyMTC display configuration EEPROMs device got
added by commit 469dded183 ("misc/eeprom: add eeprom access driver for
digsy_mtc board").  Its Kconfig symbol depends on PPC_MPC5200_GPIO.  But
at the time that driver got added PPC_MPC5200_GPIO was already renamed
to GPIO_MPC5200, by commit 6eae1ace68 ("gpio: Move mpc5200 gpio driver
to drivers/gpio").

So make this driver depend on GPIO_MPC5200.  And since GPIO_MPC5200
itself implies that GPIOLIB is set, that dependency can be dropped.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Anatolij Gustschin <agust@denx.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-15 22:41:51 -02:00
KAMEZAWA Hiroyuki
12340313cf MAINTAINERS: add new cgroup list to CC notice
As discussed at Kernel Summit(2011), new cgroups mailing list is opened
by James.  This list is for discussing general cgroup design and patches
including all subsystems and for getting more attentions to
cgroups/namespaces related issues by developpers.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-15 22:41:50 -02:00
Johan Hovold
cb871513f6 Revert "leds: save the delay values after a successful call to blink_set()"
Revert commit 6123b0e274.

The problem this patch intends to solve has alreadqy been fixed by
commit 7a5caabd09 ("drivers/leds/ledtrig-timer.c: fix broken sysfs
delay handling").

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Antonio Ospite <ospite@studenti.unina.it>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-15 22:41:50 -02:00
David Howells
9f35a33b8d KEYS: Fix a NULL pointer deref in the user-defined key type
Fix a NULL pointer deref in the user-defined key type whereby updating a
negative key into a fully instantiated key will cause an oops to occur
when the code attempts to free the non-existent old payload.

This results in an oops that looks something like the following:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
  IP: [<ffffffff81085fa1>] __call_rcu+0x11/0x13e
  PGD 3391d067 PUD 3894a067 PMD 0
  Oops: 0002 [#1] SMP
  CPU 1
  Pid: 4354, comm: keyctl Not tainted 3.1.0-fsdevel+ #1140                  /DG965RY
  RIP: 0010:[<ffffffff81085fa1>]  [<ffffffff81085fa1>] __call_rcu+0x11/0x13e
  RSP: 0018:ffff88003d591df8  EFLAGS: 00010246
  RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000006e
  RDX: ffffffff8161d0c0 RSI: 0000000000000000 RDI: 0000000000000000
  RBP: ffff88003d591e18 R08: 0000000000000000 R09: ffffffff8152fa6c
  R10: 0000000000000000 R11: 0000000000000300 R12: ffff88003b8f9538
  R13: ffffffff8161d0c0 R14: ffff88003b8f9d50 R15: ffff88003c69f908
  FS:  00007f97eb18c720(0000) GS:ffff88003bd00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000008 CR3: 000000003d47a000 CR4: 00000000000006e0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  Process keyctl (pid: 4354, threadinfo ffff88003d590000, task ffff88003c78a040)
  Stack:
   ffff88003e0ffde0 ffff88003b8f9538 0000000000000001 ffff88003b8f9d50
   ffff88003d591e28 ffffffff810860f0 ffff88003d591e68 ffffffff8117bfea
   ffff88003d591e68 ffffffff00000000 ffff88003e0ffde1 ffff88003e0ffde0
  Call Trace:
   [<ffffffff810860f0>] call_rcu_sched+0x10/0x12
   [<ffffffff8117bfea>] user_update+0x8d/0xa2
   [<ffffffff8117723a>] key_create_or_update+0x236/0x270
   [<ffffffff811789b1>] sys_add_key+0x123/0x17e
   [<ffffffff813b84bb>] system_call_fastpath+0x16/0x1b

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Neil Horman <nhorman@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-15 22:32:38 -02:00
Greg Kroah-Hartman
6edf0c9b1c Revert "tty/serial: Prevent drop of DCD on suspend for Tegra UARTs"
This reverts commit 9636b755da.

It wasn't supposed to be applied, thanks to Doug for letting me know.

Cc: Doug Anderson <dianders@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 16:01:09 -08:00
Grant Grundler
46993f02d8 net-next:asix: V2 Update VERSION
Only update VERSION to reflect previous changes.

Signed-off-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 16:26:07 -05:00
Grant Grundler
b2d3ad291f net-next:asix: V2 more fixes for ax88178 phy init sequence
Now works on Samsung Series 5 (chromebook)

Two fixes here:
o use 0x7F mask for phymode
o read phyid *AFTER* phy is powered up (via GPIOs)

Signed-off-by: Allan Chou <allan@asix.com.tw>
Signed-off-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 16:26:06 -05:00
Grant Grundler
d3665188a7 net-next:asix: reduce AX88772 init time by about 2 seconds
ax88772_reset takes about 2 seconds and is called twice.
Once from ax88772_bind() directly and again indirectly from usbnet_open().
Reset the USB FW/Phy enough to blink the LEDs when inserted.

Signed-off-by: Allan Chou <allan@asix.com.tw>
Signed-off-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 16:26:06 -05:00
Grant Grundler
a77929a278 net-next:asix:poll in asix_get_phyid in case phy not ready
Sometimes the phy isn't ready after reset...poll and pray it will be soon.

Signed-off-by: Freddy Xin <freddy@asix.com.tw>
Signed-off-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 16:26:06 -05:00
Grant Grundler
3486140e30 net-next:asix:PHY_MODE_RTL8211CL should be 0xC
Use correct value for rtl phy support.
(rtl phy are in AX88178 devices like NWU220G and USB2-ET1000).

Signed-off-by: Allan Chou <allan@asix.com.tw>
Tested-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 16:26:05 -05:00
David S. Miller
e88d246871 sparc: Stash orig_i0 into %g6 instead of %g2
As per the comments added by this commit, %g2 turns out to not be a
usable place to save away orig_i0 for syscall restart handling.

In fact all of %g2, %g3, %g4, and %g5 are assumed to be saved across
a system call by various bits of code in glibc.

%g1 can't be used because that holds the syscall number, which would
need to be saved and restored for syscall restart handling too, and
that would only compound our problems :-)

This leaves us with %g6 and %g7 which are for "system use".  %g7 is
used as the "thread register" by glibc, but %g6 is used as a compiler
and assembler temporary scratch register.  And in no instance is %g6
used to hold a value across a system call.

Therefore %g6 is safe for storing away orig_i0, at least for now.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-15 12:57:00 -08:00
Peter Chen
af8db1508f PM / driver core: disable device's runtime PM during shutdown
There may be an issue when the user issue "reboot/shutdown" command, then
the device has shut down its hardware, after that, this runtime-pm featured
device's driver will probably be scheduled to do its suspend routine,
and at its suspend routine, it may access hardware, but the device has
already shutdown physically, then the system hang may be occurred.

I ran out this issue using an auto-suspend supported USB devices, like
3G modem, keyboard. The usb runtime suspend routine may be scheduled
after the usb controller has been shut down, and the usb runtime suspend
routine will try to suspend its roothub(controller), it will access
register, then the system hang occurs as the controller is shutdown.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: stable@kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-15 21:52:29 +01:00
Mitsuo Hayasaka
db3e74b582 xfs: use doalloc flag in xfs_qm_dqattach_one()
The doalloc arg in xfs_qm_dqattach_one() is a flag that indicates
whether a new area to handle quota information will be allocated
if needed. Originally, it was passed to xfs_qm_dqget(), but has
been removed by the following commit (probably by mistake):

	commit 8e9b6e7fa4
	Author: Christoph Hellwig <hch@lst.de>
	Date:   Sun Feb 8 21:51:42 2009 +0100

	xfs: remove the unused XFS_QMOPT_DQLOCK flag

As the result, xfs_qm_dqget() called from xfs_qm_dqattach_one()
never allocates the new area even if it is needed.

This patch gives the doalloc arg to xfs_qm_dqget() in
xfs_qm_dqattach_one() to fix this problem.

Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: Alex Elder <aelder@sgi.com>
Cc: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
2011-11-15 14:45:09 -06:00
Claudio Scordino
93f3350c46 RS485: fix inconsistencies in the meaning of some variables
The crisv10.c and the atmel_serial.c serial drivers intepret the fields of the
serial_rs485 structure in a different way.

In particular, crisv10.c uses SER_RS485_RTS_AFTER_SEND and
SER_RS485_RTS_ON_SEND for the voltage of the RTS pin; atmel_serial.c,
instead, uses these values to know if a delay must be set before and
after sending.  This patch makes the usage of these variables consistent
across all drivers and fixes the Documentation as well.

From now on, SER_RS485_RTS_AFTER_SEND and SER_RS485_RTS_ON_SEND will be
used to set the voltage of the RTS pin (as in the crisv10.c driver); the
delay will be understood by looking only at the value of
delay_rts_before_send and delay_rts_after_send.

Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Signed-off-by: Darron Black <darron@griffin.net>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:13:44 -08:00
Tomoya MORINAGA
90f04c2926 pch_uart: Fix DMA resource leak issue
Changing UART mode PIO->DMA->PIO->DMA like below, pch_uart driver can't get
DMA channel resource.

setserial /dev/ttyPCH0 ^low_latency
setserial /dev/ttyPCH0 low_latency

CAUSE:
Changing mode using setserial command, ".startup" function which gets DMA
channel is called before ".verify_port" function which sets
dma-flag(use_dma/use_dma_flag) as 1.

PIO->DMA
  .startup: Since dma-flag is 0, DMA channel is not requested.
  .verify_port: dma-flag is set as 1.
  .shutdown: N/A

DMA->PIO
  .startup: Since dma-flag is 1, DMA channel is requested.
  .verify_port: dma-flag is set as 0.
  .shutdown: Since dma-flag is 0, DMA channel is not released.

This means DMA channel resource leak occurs.
Next time, this driver can't get DMA channel resource forever.

MODIFICATION:
  Currently, when release DMA channel resource, this driver checks dma-flag.
  However, this specification occurs the above issue.
  This driver must check whether dma_request_channel is executed or not.
  The values are saved in private data variable "chan_tx/chan_tx".
  These variables mean if the value is NULL, DMA channel is not requested,
  if not NULL, DMA channel is requested.

This patch fixes the issue.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:13:43 -08:00
Alan Cox
604fdb7509 serial,mfd: Fix CMSPAR setup
This is referenced the wrong way. Mika Westerberg added some checks to the
tty to support multiple console, but the real problem is simply referencing the
termios object via the wrong path.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:13:42 -08:00
Doug Anderson
9636b755da tty/serial: Prevent drop of DCD on suspend for Tegra UARTs
On Tegra UARTs (except UART1), the DTR / DCD / DSR lines are not
externally accessible.  Instead, the DTR line internally appears to be
looped back to be the input to the DCD and DSR lines.  The net effect
of this is that when we drop DTR (like when we suspend), we'll see DCD
drop too.  ...and when we see DCD drop, we treat that as a hangup.

In order to prevent this hangup from occurring at every sleep, we need
to force DTR to remain high on Tegra UARTs.

This patch uses the mcr_mask / mcr_force fields, which were originally
added for the kludge ALPHA_KLUDGE_MCR.  Using these fields does not
prevent us from removing ALPHA_KLUDGE_MCR--we can just remove the "if"
tests I have added and always init mcr_mask / mcr_force from the
serial8250_config.

NOTE: If we have people that are using UARTA on a Tegra and need to
control DTR, we'll need to either add a separate port type for UARTA
or we'll need to add some tegra-specific code to detect whether the
DTR needs to be left high.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:13:41 -08:00
Tomoya MORINAGA
eca9dfa846 pch_uart: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
On October 1 in 2011,
OKI SEMICONDUCTOR Co., Ltd. changed the company name in to LAPIS Semiconductor Co., Ltd.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:04:18 -08:00
Tomoya MORINAGA
8249f743f7 pch_uart: Support new device LAPIS Semiconductor ML7831 IOH
ML7831 is companion chip for Intel Atom E6xx series.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:04:12 -08:00
Tomoya MORINAGA
a1d7cfe29f pch_uart: Fix hw-flow control issue
Using hardware flow control,
currently, register of the control-bit(AFE) is not set.
This patch fixes the issue.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:03:01 -08:00
Stephen Boyd
c2a3e84f95 tty: hvc_dcc: Fix duplicate character inputs
Reading from the DCC grabs a character from the buffer and
clears the status bit. Since this is a context-changing
operation, instructions following the character read that rely on
the status bit being accurate need to be synchronized with an
ISB.

In this case, the status bit check needs to execute after the
character read otherwise we run the risk of reading the character
and checking the status bit before the read can clear the status
bit in the first place. When this happens, the user will see the
same character they typed twice, instead of once.

Add an ISB after the read and the write, so that the status check
is synchronized with the read/write operations.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:02:13 -08:00
Lucas Kannebley Tavares
52b3bfc69e jsm: Change maintainership
Breno Leitao has passed the maintainership on to me.

Signed-off-by: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
Acked-by: Breno Leitao <brenohl@br.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 12:02:12 -08:00
Alex Deucher
6991b8f2a3 drm/radeon/kms: fix segfault in pm rework
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-15 19:44:03 +00:00
Alex Deucher
6c47e5c23a drm/radeon/kms: fix up gpio i2c mask bits for r4xx
Fixes i2c test failures when i2c_algo_bit.bit_test=1.

The hw doesn't actually require a mask, so just set it
to the default mask bits for r1xx-r4xx radeon ddc.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-15 19:43:39 +00:00
Alex Deucher
b872a37437 drm/radeon: add some missing FireMV pci ids
Noticed by Egbert.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Cc: Egbert Eich <eich@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-15 19:43:06 +00:00
Geoff Thorpe
b2433d861e uio: documentation fixups
The 'name' attribute of struct uio_mem wasn't documented, and the note
about 'kobj' is stale and needs to be changed to 'map'.

Signed-off-by: Geoff Thorpe <geoff@geoffthorpe.net>
Signed-off-by: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 11:14:01 -08:00
Marcos Paulo de Souza
7b08fae8fb device.h: Fix struct member documentation
Fix warning of make xmldocs of documention of the struct member iommu_ops from struct bus_type.

Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 11:14:01 -08:00
Tomoya MORINAGA
2a98879194 pch_phub: Fix MAC address writing issue for LAPIS ML7831
ISSUE:
Using ML7831, MAC address writing doesn't work well.

CAUSE:
ML7831 and EG20T have the same register map for MAC address access.
However, this driver processes the writing the same as ML7223.
This is not true.
This driver must process the writing the same as EG20T.
This patch fixes the issue.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Cc: Masayuki Ohtak <masa-korg@dsn.okisemi.com>
Cc: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 11:01:50 -08:00
Tomoya MORINAGA
9914a0de7a pch_phub: Improve ADE(Address Decode Enable) control
Currently, external ROM access is enabled/disabled in probe()/remove().
So, when a buggy software access unanticipated memory area,
in case of enabling this ADE bit,
external ROM memory area can be broken.

This patch enables the ADE bit only accessing external ROM area.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Cc: Masayuki Ohtak <masa-korg@dsn.okisemi.com>
Cc: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 11:01:49 -08:00
Tomoya MORINAGA
7f2732c8d7 pch_phub: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
On October 1 in 2011,
OKI SEMICONDUCTOR Co., Ltd. changed the company name in to LAPIS Semiconductor Co., Ltd.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 11:01:49 -08:00
Tomoya MORINAGA
584ad00ce4 pch_phub: Support new device LAPIS Semiconductor ML7831 IOH
ML7831 is companion chip for Intel Atom E6xx series.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 11:01:48 -08:00
Shaohua Li
9ada19342b slub: move discard_slab out of node lock
Lockdep reports there is potential deadlock for slub node list_lock.
discard_slab() is called with the lock hold in unfreeze_partials(),
which could trigger a slab allocation, which could hold the lock again.

discard_slab() doesn't need hold the lock actually, if the slab is
already removed from partial list.

Acked-by: Christoph Lameter <cl@linux.com>
Reported-and-tested-by: Yong Zhang <yong.zhang0@gmail.com>
Reported-and-tested-by: Julie Sullivan <kernelmail.jms@gmail.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
2011-11-15 20:41:00 +02:00
Shaohua Li
f64ae042d9 slub: use correct parameter to add a page to partial list tail
unfreeze_partials() needs add the page to partial list tail, since such page
hasn't too many free objects. We now explictly use DEACTIVATE_TO_TAIL for this,
while DEACTIVATE_TO_TAIL != 1. This will cause performance regression (eg, more
lock contention in node->list_lock) without below fix.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
2011-11-15 20:37:15 +02:00
Felipe Balbi
bc985c10f3 USB: storage: ene_ub6250: fix compile warnings
Fix the following compile warning:

| drivers/usb/storage/ene_ub6250.c: In function ‘ms_scsi_write’:
| drivers/usb/storage/ene_ub6250.c:1728:6: warning: ‘result’ may \
|	be used uninitialized in this function [-Wuninitialized]
| drivers/usb/storage/ene_ub6250.c:1795:77: warning: ‘offset’ may \
|	be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 10:06:16 -08:00
VU Tuan Duc
5b06162335 USB: option: add id for 3G dongle Model VT1000 of Viettel
Add VendorID/ProductID for USB 3G dongle Model VT1000 of Viettel.

Signed-off-by: VU Tuan Duc <ducvt@viettel.com.vn>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 10:06:15 -08:00
wangyanqing
0c16595539 USB: serial: pl2303: rm duplicate id
I get report from customer that his usb-serial
converter doesn't work well,it sometimes work,
but sometimes it doesn't.

The usb-serial converter's id:
vendor_id product_id
0x4348    0x5523

Then I search the usb-serial codes, and there are
two drivers announce support this device, pl2303
and ch341, commit 026dfaf1 cause it. Through many
times to test, ch341 works well with this device,
and pl2303 doesn't work quite often(it just work quite little).

ch341 works well with this device, so we doesn't
need pl2303 to support.I try to revert 026dfaf1 first,
but it failed. So I prepare this patch by hand to revert it.

Signed-off-by: Wang YanQing <Udknight@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 10:06:15 -08:00
Tomoya MORINAGA
09b658dcb2 USB: pch_udc: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
On October 1 in 2011,
OKI SEMICONDUCTOR Co., Ltd. changed the company name in to LAPIS Semiconductor Co., Ltd.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 10:06:14 -08:00
Tomoya MORINAGA
731ad81e2d USB: pch_udc: Support new device LAPIS Semiconductor ML7831 IOH
ML7831 is companion chip for Intel Atom E6xx series.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-15 10:06:13 -08:00
Jesper Juhl
fe09b32a43 Net, libertas: Resolve memory leak in if_spi_host_to_card()
If we hit the default case in the switch in if_spi_host_to_card() we'll leak
the memory we allocated for 'packet'. This patch resolves the leak by freeing
the allocated memory in that case.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Dan Williams <dcbw@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-15 10:02:57 -05:00
Gertjan van Wingerde
ed66ba472a rt2x00: Fix sleep-while-atomic bug in powersaving code.
The generic powersaving code that determines after reception of a frame
whether the device should go back to sleep or whether is could stay
awake was calling rt2x00lib_config directly from RX tasklet context.
On a number of the devices this call can actually sleep, due to having
to confirm that the sleeping commands have been executed successfully.

Fix this by moving the call to rt2x00lib_config to a workqueue call.

This fixes bug https://bugzilla.redhat.com/show_bug.cgi?id=731672

Tested-by: Tomas Trnka <tomastrnka@gmx.com>
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: <stable@vger.kernel.org>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-15 10:02:56 -05:00
Gertjan van Wingerde
c18b7806e4 rt2x00: Add USB device ID of Buffalo WLI-UC-GNHP.
This is reported to be an RT3070 based device.

Reported-by: Teika Kazura <teika@lavabit.com>
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-15 10:02:56 -05:00
Liu Bo
f1ebcc74d5 Btrfs: fix tree corruption after multi-thread snapshots and inode_cache flush
The btrfs snapshotting code requires that once a root has been
snapshotted, we don't change it during a commit.

But there are two cases to lead to tree corruptions:

1) multi-thread snapshots can commit serveral snapshots in a transaction,
   and this may change the src root when processing the following pending
   snapshots, which lead to the former snapshots corruptions;

2) the free inode cache was changing the roots when it root the cache,
   which lead to corruptions.

This fixes things by making sure we force COW the block after we create a
snapshot during commiting a transaction, then any changes to the roots
will result in COW, and we get all the fs roots and snapshot roots to be
consistent.

Signed-off-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>
2011-11-15 09:53:28 -05:00
Timur Tabi
0f768a7235 ASoC: fsl_ssi: properly initialize the sysfs attribute object
Commit 6992f533 ("sysfs: Use one lockdep class per sysfs attribute")
requires 'struct attribute' objects to be initialized with sysfs_attr_init().

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-11-15 11:59:09 +00:00
Wim Van Sebroeck
943ef2ec4f watchdog: adx_wdt.c: remove driver
Remove the driver (that was added in v2.6.32) since the architecture
has never been merged into mainline.

Reported-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-11-15 11:45:16 +01:00
Paul Bolle
d159e571cb unicore32: drop unused Kconfig symbols
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-11-15 17:13:18 +08:00
Axel Lin
66ae45604c rtc: rtc-puv3: Add __devinit and __devexit markers for probe and remove
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-11-15 17:13:17 +08:00
Arnaud Lacombe
63c95fa414 arch/unicore32: do not use EXTRA_AFLAGS or EXTRA_CFLAGS
Usage of these flags has been deprecated for nearly 4 years by:

    commit f77bf01425
    Author: Sam Ravnborg <sam@neptun.(none)>
    Date:   Mon Oct 15 22:25:06 2007 +0200

        kbuild: introduce ccflags-y, asflags-y and ldflags-y

Moreover, these flags (at least EXTRA_CFLAGS) have been documented for command
line use. By default, gmake(1) do not override command line setting, so this is
likely to result in build failure or unexpected behavior.

Replace their usage by Kbuild's `{as,cc,ld}flags-y'.

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-11-15 17:13:15 +08:00
Guan Xuetao
e13b91c1c4 unicore32: fix build error for find bitops
Remove the __uc32_ prefix in find bitops functions.
Move find_* macros behind asm-generic/bitops.h inclusion.
see commit <19de85ef574c3a2182e3ccad9581805052f14946>
  bitops: add #ifndef for each of find bitops
also see commit <63e424c84429903c92a0f1e9654c31ccaf6694d0>
  arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,BIT_LE,LAST_BIT}

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
2011-11-15 17:13:14 +08:00
Inki Dae
4f9eb94f7b drm/exynos: include linux/module.h
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:46 +09:00
Inki Dae
483b88f86e drm/exynos: fix vblank bug.
In case that vblank_disable_allowed is 1, the problem that manager->pipe
could be -1 at vsync interrupt handler could be induced so this patch fixes
that.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:46 +09:00
Inki Dae
2c871127e9 drm/exynos: changed buffer structure.
the purpose of this patch is to consider IOMMU support in the future.
EXYNOS4 SoC supports IOMMU also so the address for DMA could be
physical address with IOMMU or device address with IOMMU.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:46 +09:00
Inki Dae
c7493668ee drm/exynos: removed unnecessary variable.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:46 +09:00
Inki Dae
f088d5a9c5 drm/exynos: use gem create function generically
this patch addes exynos_drm_gem_init() creating and initialzing a gem.
allocation functions could use this function to create new gem and
it changes size type of exynos_drm_gem_create structure to 64bit
and also corrects comments to exynos_drm_gem_create structure.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:46 +09:00
Seung-Woo Kim
b0e0f85631 drm/exynos: checked for null pointer
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:46 +09:00
Joonyoung Shim
d2716c896d drm/exynos: added crtc dpms for disable crtc
crtc dpms is called as destroying attached fb so dpms off sould be processed.
crtc dpms also can be called after crtc is detached from encoder so pipe value
of manager is used to find display controller for this case

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:46 +09:00
Seung-Woo Kim
aa6b2b6cd4 drm/exynos: removed meaningless parameter from fbdev update
drm_framebuffer already has width and height so they are meaningless as
parameters when updating fb_info.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:45 +09:00
Joonyoung Shim
84b46990cb drm/exynos: restored kernel_fb_list when reiniting fb_helper
during recreating exynos_drm_fbdev as a new display device probes,
fb_helper is reinitialized but kernel fb is not changed
so kernel_fb_list should be restored after fb_helper is reinitialized.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:45 +09:00
Inki Dae
74ccc539bc drm/exynos: changed exynos_drm_display to exynos_drm_display_ops
exynos_drm_display has function pointes so exynos_drm_display_ops is better
to describe.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:45 +09:00
Inki Dae
adb6b15967 drm/exynos: added manager object to connector
connector contains some contents for display controller so the connector also
should be able to access controller through manager.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:45 +09:00
Seung-Woo Kim
8b58dfe029 drm/exynos: fixed converting between display mode and timing
missing members are added into converting function between timing and display
mode and refresh rate of display mode is calculated by drm mode function.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:44 +09:00
Seung-Woo Kim
1b17b20656 drm/exynos: fixed connector flag with hpd and interlace scan for hdmi
hdmi display in exynos supports hotplug event and interlace scan mode

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:44 +09:00
Seung-Woo Kim
7db3eba6bf drm/exynos: added kms poll for handling hpd event
this patch adds kms poll infrastructure to handle hotplug detection event

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2011-11-15 14:58:44 +09:00
David S. Miller
1d299bc773 sparc: Fix handling of orig_i0 wrt. debugging when restarting syscalls.
Although we provide a proper way for a debugger to control whether
syscall restart occurs, we run into problems because orig_i0 is not
saved and restored properly.

Luckily we can solve this problem without having to make debuggers
aware of the issue.  Across system calls, several registers are
considered volatile and can be safely clobbered.

Therefore we use the pt_regs save area of one of those registers, %g2,
as a place to save and restore orig_i0.

Debuggers transparently will do the right thing because they save and
restore this register already.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 20:43:07 -08:00
Jesper Juhl
eec205719e net/packet: Revert incorrect dead-code changes to prb_setup_retire_blk_timer
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 21:49:46 -05:00
Alan Stern
2f640bf4c9 usb-storage: Accept 8020i-protocol commands longer than 12 bytes
The 8020i protocol (also 8070i and QIC-157) uses 12-byte commands;
shorter commands must be padded.  Simon Detheridge reports that his
3-TB USB disk drive claims to use the 8020i protocol (which is
normally meant for ATAPI devices like CD drives), and because of its
large size, the disk drive requires the use of 16-byte commands.
However the usb_stor_pad12_command() routine in usb-storage always
sets the command length to 12, making the drive impossible to use.

Since the SFF-8020i specification allows for 16-byte commands in
future extensions, we may as well accept them.  This patch (as1490)
changes usb_stor_pad12_command() to leave commands larger than 12
bytes alone rather than truncating them.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Simon Detheridge <simon@widgit.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 17:05:03 -08:00
sordna
0d145d7d4a USB: quirks: adding more quirky webcams to avoid squeaky audio
The following patch contains additional affected webcam models, on top of the
patches commited to linux-next 2394d67e44
and 5b253d88cc

Signed-off-by: sordna <sordna@gmail.com>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 16:39:17 -08:00
Axel Lin
161f14191d pcie-gadget-spear: Add "platform:" prefix for platform modalias
Since 43cc71eed1 (platform: prefix MODALIAS
with "platform:"), the platform modalias is prefixed with "platform:".

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Pratyush Anand <pratyush.anand@st.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 16:09:32 -08:00
Greg Kroah-Hartman
46e642614b MAINTAINERS: add CHAR and MISC driver maintainers
Yes, we are fools, but humor us.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-11-14 16:02:05 -08:00
Shaohui Xie
8981d76a2c powerpc/usb: fix type cast for address of ioremap to compatible with 64-bit
Below are codes for accessing usb sysif_regs in driver:

usb_sys_regs = (struct usb_sys_interface *)
	((u32)dr_regs + USB_DR_SYS_OFFSET);

these codes work in 32-bit, but in 64-bit, use u32 to type cast the address
of ioremap is not right, and accessing members of 'usb_sys_regs' will cause
call trace, so use (void *) for both 32-bit and 64-bit.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 15:52:11 -08:00
Jean-Christophe PLAGNIOL-VILLARD
770f0baaee USB: at91: at91-ohci: fix set/get power
in commit aa6e52a35 we introduce the support of overcurrent notification
but the set and get of the power without checking if the gpio is valid or not

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 15:52:11 -08:00
MyungJoo Ham
6c81f90588 PM / devfreq: correct Kconfig dependency
Devfreq does not depend on OPP. The dependency is removed.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-14 23:31:35 +01:00
Axel Lin
9f3bdd4f93 PM / devfreq: fix use after free in devfreq_remove_device
In devfreq_remove_device, calling _remove_devfreq will also free devfreq.
Don't dereference devfreq->governor->no_central_polling after _remove_devfreq.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-14 23:31:29 +01:00
Rafael J. Wysocki
bc9f54498e PM / shmobile: Avoid restoring the INTCS state during initialization
The SH7372 PM domain initialization routine calls pd_power_up()
that executes the domain's .resume() callback, if present, and for
the A4R domain this callback attepmts to restore the INTCS state from
uninitialized data.  To avoid that, introduce __pd_power_up() that
will only execute the domain's .resume() callback if its second
argument is 'true' and make the SH7372 PM domain initialization
use it with 'false' as its second argument.  Redefine pd_power_up()
as a wrapper around __pd_power_up().

Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tracked-down-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>
2011-11-14 23:30:21 +01:00
Havard Skinnemoen
5dc2470c60 USB: cdc-acm: Fix disconnect() vs close() race
There's a race between the USB disconnect handler and the TTY close
handler which may cause the acm object to be freed while it's still
being used. This may lead to things like

http://article.gmane.org/gmane.linux.usb.general/54250

and

https://lkml.org/lkml/2011/5/29/64

This is the simplest fix I could come up with. Holding on to open_mutex
while closing the TTY device prevents acm_disconnect() from freeing the
acm object between acm->port.count drops to 0 and the TTY side of the
cleanups are finalized.

Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 13:47:49 -08:00
Josh Boyer
60c71ca972 USB: add quirk for Logitech C600 web cam
We've had another report of the "chipmunk" sound on a Logitech C600 webcam.
This patch resolves the issue.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 13:47:48 -08:00
Thomas Poussevin
811c926c53 USB: EHCI: fix HUB TT scheduling issue with iso transfer
The current TT scheduling doesn't allow to play and then record on a
full-speed device connected to a high speed hub.

The IN iso stream can only start on the first uframe (0-2 for a 165 us)
because of CSPLIT transactions.
For the OUT iso stream there no such restriction. uframe 0-5 are possible.

The idea of this patch is that the first uframe are precious (for IN TT iso
stream) and we should allocate the last uframes first if possible.

For that we reverse the order of uframe allocation (last uframe first).

Here an example :

hid interrupt stream
----------------------------------------------------------------------
uframe                |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |
----------------------------------------------------------------------
max_tt_usecs          | 125 | 125 | 125 | 125 | 125 | 125 | 30  |  0  |
----------------------------------------------------------------------
used usecs on a frame | 13  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
----------------------------------------------------------------------

iso OUT stream
----------------------------------------------------------------------
uframe                |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |
----------------------------------------------------------------------
max_tt_usecs          | 125 | 125 | 125 | 125 | 125 | 125 | 30  |  0  |
----------------------------------------------------------------------
used usecs on a frame | 13  | 125 |  39 |  0  |  0  |  0  |  0  |  0  |
----------------------------------------------------------------------

There no place for iso IN stream  (uframe 0-2 are used) and we got "cannot
submit datapipe for urb 0, error -28: not enough bandwidth" error.

With the patch this become.

iso OUT stream
----------------------------------------------------------------------
uframe                |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |
----------------------------------------------------------------------
max_tt_usecs          | 125 | 125 | 125 | 125 | 125 | 125 | 30  |  0  |
----------------------------------------------------------------------
used usecs on a frame |  13 |  0  |  0  |  0  | 125 |  39 |  0  |  0  |
----------------------------------------------------------------------

iso IN stream
----------------------------------------------------------------------
uframe                |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |
----------------------------------------------------------------------
max_tt_usecs          | 125 | 125 | 125 | 125 | 125 | 125 | 30  |  0  |
----------------------------------------------------------------------
used usecs on a frame |  13 |  0  | 125 | 40  | 125 |  39 |  0  |  0  |
----------------------------------------------------------------------

Signed-off-by: Matthieu Castet <matthieu.castet@parrot.com>
Signed-off-by: Thomas Poussevin <thomas.poussevin@parrot.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 13:47:48 -08:00
Alan Stern
f69e3120df USB: XHCI: resume root hubs when the controller resumes
This patch (as1494) fixes a problem in xhci-hcd's resume routine.
When the controller is runtime-resumed, this can only mean that one of
the two root hubs has made a wakeup request and therefore needs to be
resumed as well.  Rather than try to determine which root hub requires
attention (which might be difficult in the case where a new
non-SuperSpeed device has been plugged in), the patch simply resumes
both root hubs.

Without this change, there is a race: The controller might be put back
to sleep before it can activate its IRQ line, and the wakeup condition
might never get handled.

The patch also simplifies the logic in xhci_resume a little, combining
some repeated flag settings into a single pair of statements.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 13:47:48 -08:00
Alan Stern
97ff22ee3b USB: workaround for bug in old version of GCC
This patch (as1491) works around a bug in GCC-3.4.6, which is still
supposed to be supported.  The number of microseconds in the udelay()
call in quirk_usb_disable_ehci() is fixed at 100, but the compiler
doesn't understand this and generates a link-time error.  So we
replace the otherwise unused variable "delta" with a simple constant
100.  This same pattern is already used in other delay loops in that
source file.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Konrad Rzepecki <krzepecki@dentonet.pl>
Tested-by: Konrad Rzepecki <krzepecki@dentonet.pl>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 13:47:47 -08:00
Bart Hartgers
583182ba5f USB: ark3116 initialisation fix
This patch for the usb serial ark3116 driver fixes an initialisation
ordering bug that gets triggered on hotplug when using at least recent
debian/ubuntu userspace. Without it, ark3116 serial cables don't work.

Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Tested-by: law_ence.dev@ntlworld.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 13:47:47 -08:00
Johannes Stezenbach
54dc6cabe6 ASoC: sta32x: preserve coefficient RAM
The coefficient RAM must be saved in a shadow so it can
be restored when the codec is powered on using
regulator_bulk_enable().

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2011-11-14 21:32:12 +00:00
Felipe Balbi
ab570da26e usb: musb: fix compilation breakage introduced by de47725
commit de47725 (include: replace linux/module.h
with "struct module" wherever possible) introduced
a compilation breaked when it removed <linux/module.h>
from <linux/device.h> which musb glue layers were
(mistakenly) relying on.

Include that header to fix the compile error.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:32 -08:00
Sebastian Andrzej Siewior
12d36c16bd usb: dwc3: gadget: initialize max_streams
Without this the gadget will never be able to allocate a stream capable
endpoint. The manual says that the stream id is a 16bit id. It does not
talk about an upper limit in any other way. So I think 15 is a
reasonable limit :)

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:31 -08:00
Kuninori Morimoto
d7a00ec1a8 usb: gadget: renesas_usbhs: bugfix: set DATA0 when usbhsh_endpoint_alloc()
new endpoint should start from DATA0,
but mod_host didn't care it.
This patch fix it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:31 -08:00
Kuninori Morimoto
146ee50ae5 usb: gadget: renesas_usbhs: bugfix: disable irq when device stop
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:29 -08:00
Kuninori Morimoto
73ef635a07 usb: gadget: renesas_usbhs: bugfix: care pipe direction
renesas_usbhs is caring pipe type and its direction.
but current usbhs_endpoint_alloc() didn't check direction.
this patch modify it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:29 -08:00
Marc Kleine-Budde
4703d2e9d0 USB: ci13xxx_msm: add module license
Since commit "193ab2a usb: gadget: allow multiple gadgets to be built"
the udc controllers can be compiled as a module. The ci13xxx_msm driver
is missing the MODULE_LICENSE statement, so loading fails with:

ci13xxx_msm: module license 'unspecified' taints kernel.
ci13xxx_msm: Unknown symbol dev_set_name (err 0)
ci13xxx_msm: Unknown symbol platform_get_irq (err 0)
ci13xxx_msm: Unknown symbol device_unregister (err 0)
ci13xxx_msm: Unknown symbol usb_add_gadget_udc (err 0)
ci13xxx_msm: Unknown symbol put_device (err 0)
ci13xxx_msm: Unknown symbol platform_driver_register (err 0)
ci13xxx_msm: Unknown symbol platform_get_resource (err 0)
ci13xxx_msm: Unknown symbol device_register (err 0)
ci13xxx_msm: Unknown symbol usb_del_gadget_udc (err 0)

This patch adds the missing MODULE_LICENSE statement with GPL v2 according
to the header of the driver.

Tested-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:28 -08:00
Marc Kleine-Budde
194fa47ef6 USB: ci13xxx_udc: fix debug trace code
This patch fixes the following compile errors that show up if switching
on the debug trace code:

drivers/usb/gadget/ci13xxx_udc.c: In function 'ci13xxx_wakeup':
drivers/usb/gadget/ci13xxx_udc.c:2517:3: error: 'dev' undeclared (first use in this function)
drivers/usb/gadget/ci13xxx_udc.c:2517:3: note: each undeclared identifier is reported only once for each function it appears in
drivers/usb/gadget/ci13xxx_udc.c: In function 'udc_probe':
drivers/usb/gadget/ci13xxx_udc.c:2867:2: error: 'name' undeclared (first use in this function)

Tested-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:28 -08:00
Marc Kleine-Budde
fd537c041b USB: ci13xxx_udc: fix deadlock during rmmod
The inline documentation of _gadget_stop_activity() states that the
function should be called holding the udc->lock. This however will
result in a deadlock, because _gadget_stop_activity() takes the udc->lock.

During normal operation _gadget_stop_activity() is always called unlocked,
but in ci13xxx_stop() it's called locked, this results in the following
deadlock during rmmod of a gadget driver.

This patch fixes the deadlock by calling _gadget_stop_activity() always
unlocked, the inline documentation is adjusted accordingly.

=============================================
[ INFO: possible recursive locking detected ]
3.1.0-rc6+ #159
---------------------------------------------
rmmod/121 is trying to acquire lock:
 (udc_lock){-.-...}, at: [<c0229048>] _gadget_stop_activity+0x18/0x154

but task is already holding lock:
 (udc_lock){-.-...}, at: [<c02291e0>] ci13xxx_stop+0x5c/0x164

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(udc_lock);
  lock(udc_lock);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

2 locks held by rmmod/121:
 #0:  (udc_lock#2){+.+.+.}, at: [<c02286c0>] usb_gadget_unregister_driver+0x34/0x88
 #1:  (udc_lock){-.-...}, at: [<c02291e0>] ci13xxx_stop+0x5c/0x164

stack backtrace:
[<c000d41c>] (unwind_backtrace+0x0/0xf0) from [<c0056f94>] (check_deadlock.clone.24+0x284/0x2c4)
[<c0056f94>] (check_deadlock.clone.24+0x284/0x2c4) from [<c00589ac>] (validate_chain.clone.25+0x430/0x6fc)
[<c00589ac>] (validate_chain.clone.25+0x430/0x6fc) from [<c0059bac>] (__lock_acquire+0x494/0x8f0)
[<c0059bac>] (__lock_acquire+0x494/0x8f0) from [<c005a698>] (lock_acquire+0x98/0x1a8)
[<c005a698>] (lock_acquire+0x98/0x1a8) from [<c02f12a4>] (_raw_spin_lock_irqsave+0x64/0xa0)
[<c02f12a4>] (_raw_spin_lock_irqsave+0x64/0xa0) from [<c0229048>] (_gadget_stop_activity+0x18/0x154)
[<c0229048>] (_gadget_stop_activity+0x18/0x154) from [<c0229234>] (ci13xxx_stop+0xb0/0x164)
[<c0229234>] (ci13xxx_stop+0xb0/0x164) from [<c022867c>] (usb_gadget_remove_driver+0x88/0x98)
[<c022867c>] (usb_gadget_remove_driver+0x88/0x98) from [<c02286f4>] (usb_gadget_unregister_driver+0x68/0x88)
[<c02286f4>] (usb_gadget_unregister_driver+0x68/0x88) from [<c0065f2c>] (sys_delete_module+0x1fc/0x26c)
[<c0065f2c>] (sys_delete_module+0x1fc/0x26c) from [<c00092a0>] (ret_fast_syscall+0x0/0x38)
BUG: spinlock lockup on CPU#0, rmmod/121, c05b1644
[<c000d41c>] (unwind_backtrace+0x0/0xf0) from [<c01da000>] (do_raw_spin_lock+0x128/0x144)
[<c01da000>] (do_raw_spin_lock+0x128/0x144) from [<c02f12c8>] (_raw_spin_lock_irqsave+0x88/0xa0)
[<c02f12c8>] (_raw_spin_lock_irqsave+0x88/0xa0) from [<c0229048>] (_gadget_stop_activity+0x18/0x154)
[<c0229048>] (_gadget_stop_activity+0x18/0x154) from [<c0229234>] (ci13xxx_stop+0xb0/0x164)
[<c0229234>] (ci13xxx_stop+0xb0/0x164) from [<c022867c>] (usb_gadget_remove_driver+0x88/0x98)
[<c022867c>] (usb_gadget_remove_driver+0x88/0x98) from [<c02286f4>] (usb_gadget_unregister_driver+0x68/0x88)
[<c02286f4>] (usb_gadget_unregister_driver+0x68/0x88) from [<c0065f2c>] (sys_delete_module+0x1fc/0x26c)
[<c0065f2c>] (sys_delete_module+0x1fc/0x26c) from [<c00092a0>] (ret_fast_syscall+0x0/0x38)

Tested-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:27 -08:00
Michael Grzeschik
954aad8cd1 USB: ci13xxx_udc: fix logic to mark request dma addresses as invalid
The current driver sets the request's dma addr (mReq->req.dma) to 0 to
mark the DMA address as not valid. However some gadget drivers
(e.g. gadgetfs) set the request's dma addr to DMA_ADDR_INVALID to mark
the address as invalid. This leads to bogus data send because the
ci13xxx_udc driver assumes the request has already been mapped.

This patch fixes the problem, by using DMA_ADDR_INVALID instead of 0
to mark the request's DMA address as invalid.

Tested-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:27 -08:00
Marc Kleine-Budde
001428e487 USB: gadgetfs: gadgetfs_disconnect: fix inconsistent lock state
Under certain circumstances lockdep finds an inconsistent lock state in
gadgetfs. The problem can be reproduced with a hardware using the
ci13xxx_udc driver and the gadgetfs test program (needs a patch to support
the ci13xxx_udc, though):
	http://www.linux-usb.org/gadget/usb.c
Start the test program, wait to initialize, then press Ctrl+c.

This patch fixes the following problem by using spin_lock_irqsave()
instead of spin_lock().

=================================
[ INFO: inconsistent lock state ]
3.1.0-rc6+ #158
---------------------------------
inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
usb/113 [HC0[0]:SC0[0]:HE1:SE1] takes:
 (&(&dev->lock)->rlock){?.....}, at: [<bf000340>] gadgetfs_disconnect+0x14/0x80 [gadgetfs]
{IN-HARDIRQ-W} state was registered at:
  [<c00596b8>] mark_irqflags+0x14c/0x1ac
  [<c0059bf8>] __lock_acquire+0x4e0/0x8f0
  [<c005a698>] lock_acquire+0x98/0x1a8
  [<c02f10e0>] _raw_spin_lock+0x54/0x8c
  [<bf000340>] gadgetfs_disconnect+0x14/0x80 [gadgetfs]
  [<c0229104>] _gadget_stop_activity+0xd4/0x154
  [<c022b130>] isr_reset_handler+0x34/0x1c0
  [<c022c320>] udc_irq+0x204/0x228
  [<c0069018>] handle_irq_event_percpu+0x64/0x3a0
  [<c0069390>] handle_irq_event+0x3c/0x5c
  [<c006ae5c>] handle_level_irq+0x8c/0x10c
  [<c0068a34>] generic_handle_irq+0x30/0x44
  [<c0009b2c>] handle_IRQ+0x30/0x84
  [<c0008ef8>] __irq_svc+0x38/0x60
  [<c0009c58>] default_idle+0x30/0x34
  [<c0009e30>] cpu_idle+0x9c/0xd8
  [<c04056f4>] start_kernel+0x278/0x2bc
irq event stamp: 6412
hardirqs last  enabled at (6412): [<c02f1cd0>] _raw_spin_unlock_irqrestore+0x30/0x5c
hardirqs last disabled at (6411): [<c02f1278>] _raw_spin_lock_irqsave+0x20/0xa0
softirqs last  enabled at (6381): [<c002833c>] irq_exit+0xa0/0xa8
softirqs last disabled at (6372): [<c002833c>] irq_exit+0xa0/0xa8

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&(&dev->lock)->rlock);
  <Interrupt>
    lock(&(&dev->lock)->rlock);

 *** DEADLOCK ***

1 lock held by usb/113:
 #0:  (udc_lock#2){+.+.+.}, at: [<c02286c0>] usb_gadget_unregister_driver+0x34/0x88

stack backtrace:
[<c000d41c>] (unwind_backtrace+0x0/0xf0) from [<c0058e98>] (print_usage_bug+0x144/0x1c4)
[<c0058e98>] (print_usage_bug+0x144/0x1c4) from [<c0059144>] (mark_lock_irq+0x22c/0x274)
[<c0059144>] (mark_lock_irq+0x22c/0x274) from [<c00592d4>] (mark_lock+0x148/0x3e0)
[<c00592d4>] (mark_lock+0x148/0x3e0) from [<c0059668>] (mark_irqflags+0xfc/0x1ac)
[<c0059668>] (mark_irqflags+0xfc/0x1ac) from [<c0059bf8>] (__lock_acquire+0x4e0/0x8f0)
[<c0059bf8>] (__lock_acquire+0x4e0/0x8f0) from [<c005a698>] (lock_acquire+0x98/0x1a8)
[<c005a698>] (lock_acquire+0x98/0x1a8) from [<c02f10e0>] (_raw_spin_lock+0x54/0x8c)
[<c02f10e0>] (_raw_spin_lock+0x54/0x8c) from [<bf000340>] (gadgetfs_disconnect+0x14/0x80 [gadgetfs])
[<bf000340>] (gadgetfs_disconnect+0x14/0x80 [gadgetfs]) from [<c0229104>] (_gadget_stop_activity+0xd4/0x154)
[<c0229104>] (_gadget_stop_activity+0xd4/0x154) from [<c0229240>] (ci13xxx_stop+0xbc/0x17c)
[<c0229240>] (ci13xxx_stop+0xbc/0x17c) from [<c022867c>] (usb_gadget_remove_driver+0x88/0x98)
[<c022867c>] (usb_gadget_remove_driver+0x88/0x98) from [<c02286f4>] (usb_gadget_unregister_driver+0x68/0x88)
[<c02286f4>] (usb_gadget_unregister_driver+0x68/0x88) from [<bf0003e8>] (dev_release+0x14/0x48 [gadgetfs])
[<bf0003e8>] (dev_release+0x14/0x48 [gadgetfs]) from [<c00cc158>] (__fput+0xa4/0x1f0)
[<c00cc158>] (__fput+0xa4/0x1f0) from [<c00c7f28>] (filp_close+0x5c/0x74)
[<c00c7f28>] (filp_close+0x5c/0x74) from [<c00c7fe8>] (sys_close+0xa8/0x150)
[<c00c7fe8>] (sys_close+0xa8/0x150) from [<c00092a0>] (ret_fast_syscall+0x0/0x38)

Tested-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:26 -08:00
Daniel Mack
74203de067 usb: gadget: fix MIDI gadget jack allocation
The dynamic jack allocation of the MIDI gadget currently links all
external jacks to one single instance of an embedded jack. According to
the spec, this is only valid if these streams always carry the same data
stream, as described in the USB MIDI 1.0 spec, chapter 3.3.1.

Also, genius Windows 7(tm) terminates it's life cycle instantly with a
blue screen of death once a device with more than one input and output
port with the current implementation is connected.

While at it, and because it grew again by this change, allocate the
temporary function pointer list on the heap, not on the stack.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:25 -08:00
Paul Zimmerman
ce7b612185 usb: gadget: storage: check for valid USB_BULK_RESET_REQUEST wLength
The USB-IF CV compliance tester is getting stricter, and it would
be valid for it to fail a mass-storage device that accepts an
invalid USB_BULK_RESET_REQUEST request. Although it doesn't do
that yet, let's be proactive and fix that now.

Suggested by Alan Stern.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:24 -08:00
Paul Zimmerman
db332bc9b2 usb: gadget: storage: check for valid USB_BULK_GET_MAX_LUN_REQUEST
The latest USB-IF CV tester checks for a valid length for this
request.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:24 -08:00
Kuninori Morimoto
b7a8d17db9 usb: gadget: renesas_usbhs: fixup section mismatch warning
Fix up the following section mismatch warnings:

WARNING: drivers/usb/renesas_usbhs/renesas_usbhs.o(.text+0xf5d): Section
mismatch in reference from the function usbhs_mod_probe() to the function
.devinit.text:usbhs_mod_host_probe() The function usbhs_mod_probe() references
the function __devinit usbhs_mod_host_probe().  This is often because
usbhs_mod_probe lacks a __devinit annotation or the annotation of
usbhs_mod_host_probe is wrong.

WARNING: drivers/usb/renesas_usbhs/renesas_usbhs.o(.text+0xfd7): Section
mismatch in reference from the function usbhs_mod_probe() to the function
.devexit.text:usbhs_mod_host_remove() The function usbhs_mod_probe() references
a function in an exit section.  Often the function usbhs_mod_host_remove() has
valid usage outside the exit section and the fix is to remove the __devexit
annotation of usbhs_mod_host_remove.

WARNING: drivers/usb/renesas_usbhs/renesas_usbhs.o(.text+0x1005): Section
mismatch in reference from the function usbhs_mod_remove() to the function
.devexit.text:usbhs_mod_host_remove() The function usbhs_mod_remove()
references a function in an exit section.  Often the function
usbhs_mod_host_remove() has valid usage outside the exit section and the fix is
to remove the __devexit annotation of usbhs_mod_host_remove.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:23 -08:00
Kuninori Morimoto
c9ae0c91b9 usb: gadget: renesas_usbhs: fixup bogus conversion
this patch fixup bogus conversion of
8a9775ab71
(usb: gadget: renesas_usbhs: fix compile warning)

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:22 -08:00
Kuninori Morimoto
7fccd480b7 usb: gadget: renesas_usbhs: fixup struct completion usage
Since renesas_usbhs mod_host didn't use
struct completion as static object, the warning of lockdep came out.
This patch fixup this issue.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:21 -08:00
Alexander Aring
0e042be348 usb: gadget: fsl_udc_core: fix compile error.
Fix compile error in file drivers/usb/gadget/fsl_udc_core.c.

drivers/usb/gadget/fsl_udc_core.c: In function 'portscx_device_speed':
drivers/usb/gadget/fsl_udc_core.c:1720: error: 'speed' undeclared (first
use in this function)

Introduced in commit e538dfdae8
(usb: Provide usb_speed_string() function)

Signed-off-by: Alexander Aring <a.aring@phytec.de>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:21 -08:00
Yoshihiro Shimoda
05bb701303 usb: gadget: r8a66597-udc: fix flush fifo handling
The "BCLR" in CFIFOCTR/DnFIFOCTR can flush the fifo of "CPU side" only.
To flush the fifo of "SIE side", we have to use the "ACLRM" in PIPEnCTR.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:20 -08:00
Yoshihiro Shimoda
b8cbbf803d usb: gadget: r8a66597-udc: fix for udc-newstyle
The udc-newstyle needs device_register in probe() of platform_device.
If it doesn't call, kernel panic happens in the sysfs_create_dir() when
we run modprobe a gadget driver.

[ balbi@ti.com : fix compile warning introduced by this patch ]

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:19 -08:00
Luciano Coelho
0de174b56b usb: musb: hdrc: fix dependency on USB_GADGET_DUALSPEED in Kconfig
USB_MUSB_HDRC depends on USB_GADGET_DUALSPEED.  If HDRC is selected
but DUALSPEED is not, the kernel oopses:

[    3.132781] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[    3.141296] pgd = c0004000
[    3.144134] [00000000] *pgd=00000000
[    3.147918] Internal error: Oops: 5 [#1] SMP
[    3.152404] Modules linked in:
[    3.155609] CPU: 0    Not tainted  (3.1.0-rc9-wl+ #417)
[    3.161132] PC is at composite_setup+0x738/0xbb4
[    3.165985] LR is at vprintk+0x400/0x47c
[    3.170135] pc : [<c031df90>]    lr : [<c004c150>]    psr: 60000093
[    3.170135] sp : c065dd50  ip : dfb1f0fc  fp : c065ddbc
[    3.182220] r10: 00000000  r9 : df8fcae8  r8 : df8fcaa0
[    3.187713] r7 : 00000000  r6 : df8eaa20  r5 : dfae8ea0  r4 : 00000000
[    3.194580] r3 : df8fcae8  r2 : 00010002  r1 : c065dc40  r0 : 00000047
[    3.201446] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    3.209228] Control: 10c53c7d  Table: 8000404a  DAC: 00000015
[    3.215270] Process swapper (pid: 0, stack limit = 0xc065c2f8)
[    3.221405] Stack: (0xc065dd50 to 0xc065e000)
[...]
[    3.415405] [<c031df90>] (composite_setup+0x738/0xbb4) from [<c0310d18>] (musb_g_ep0_irq+0x9d0/0xaf8)
[    3.425109] [<c0310d18>] (musb_g_ep0_irq+0x9d0/0xaf8) from [<c030fb04>] (musb_interrupt+0xb48/0xc74)
[    3.434722] [<c030fb04>] (musb_interrupt+0xb48/0xc74) from [<c030fc98>] (generic_interrupt+0x68/0x80)
[    3.444458] [<c030fc98>] (generic_interrupt+0x68/0x80) from [<c0095204>] (handle_irq_event_percpu+0x9c/0x234)
[    3.454925] [<c0095204>] (handle_irq_event_percpu+0x9c/0x234) from [<c00953e8>] (handle_irq_event+0x4c/0x6c)
[    3.465270] [<c00953e8>] (handle_irq_event+0x4c/0x6c) from [<c0097e10>] (handle_fasteoi_irq+0xd8/0x110)
[    3.475158] [<c0097e10>] (handle_fasteoi_irq+0xd8/0x110) from [<c0094d2c>] (generic_handle_irq+0x34/0x3c)
[    3.485260] [<c0094d2c>] (generic_handle_irq+0x34/0x3c) from [<c0014ae4>] (handle_IRQ+0x88/0xc8)
[    3.494537] [<c0014ae4>] (handle_IRQ+0x88/0xc8) from [<c00085b0>] (asm_do_IRQ+0x18/0x1c)
[    3.503051] [<c00085b0>] (asm_do_IRQ+0x18/0x1c) from [<c0429e78>] (__irq_svc+0x38/0xc0)

This patch changes Kconfig so that USB_GADGET_DUALSPEED is selected
automatically by USB_MUSB_HDRC.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:18 -08:00
Mian Yousaf Kaukab
d06785942d usb: musb: remove incorrectly added ARCH_U5500 define
ARCH_U8500 covers both MACH_U8500 and MACH_U5500

Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:18 -08:00
Felipe Balbi
59d81f8139 usb: gadget: core: allow everybody to read sysfs attributes
Those are simply giving information about the current
state of the UDC, nothing really fancy. We can let
everybody read those.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:17 -08:00
Felipe Balbi
6f39504de5 usb: gadget: core: fix bug when removing gadget drivers
usb_gadget_disconnect() is responsible of removing
data pullups. Before doing that we must, first, tell
gadget driver we're disconnecting (by calling disconnect
method on gadget driver structure), unbind the gadget
driver and stop the controller.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:16 -08:00
Felipe Balbi
3c2d636a1c usb: musb: gadget: don't call ->disconnect() on exit
that has already being done by udc-core.c. It's
unnecessary and might cause issues with some gadget
drivers.

Tested: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:16 -08:00
Felipe Balbi
1d91a96268 usb: gadget: udc-core: fix bug on soft_connect and srp interfaces
We should not be using dev_get_drvdata() because we
never call dev_set_drvdata(). Let's use container_of()
as all other sysfs attributes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-14 11:51:15 -08:00
David S. Miller
f8b8a80f2d Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-11-14 14:46:22 -05:00
John Crispin
a32fd63dbf NET: MIPS: lantiq: fix etop compile error
The Lantiq ETOP ethernet driver fails to build in 3.2-rc1 due to 2 missing
header files.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 14:34:54 -05:00
Greg Kroah-Hartman
47c6a04bf5 Merge branch 'for-usb-linus' of git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus
* 'for-usb-linus' of ra.kernel.org:/pub/scm/linux/kernel/git/sarah/xhci:
  usb, xhci: Clear warm reset change event during init
  xhci: Set slot and ep0 flags for address command.
  usb, xhci: fix lockdep warning on endpoint timeout
2011-11-14 11:30:52 -08:00
Yevgeny Petrilin
4a5f4dd859 mlx4_en: Remove FCS bytes from packet length.
When HW doesn't remove FCS bytes they are reported in the completion
byte count, we don't need to take them to skb.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 14:25:36 -05:00
Bjorn Helgaas
4cac2eb158 PCI hotplug: shpchp: don't blindly claim non-AMD 0x7450 device IDs
Previously we claimed device ID 0x7450, regardless of the vendor, which is
clearly wrong.  Now we'll claim that device ID only for AMD.

I suspect this was just a typo in the original code, but it's possible this
change will break shpchp on non-7450 AMD bridges.  If so, we'll have to fix
them as we find them.

Reference: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=638863
Reported-by: Ralf Jung <ralfjung-e@gmx.de>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-14 09:43:14 -08:00
Matthew Garrett
e5a44df85e [SCSI] hpsa: Disable ASPM
The Windows driver .inf disables ASPM on hpsa devices. Do the same because the
selection of a non default ASPM policy can cause the device to hang.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: stable@kernel.org
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-14 10:47:01 -06:00
John Crispin
4af92e7a68 MIPS: lantiq: use export.h in favour of module.h
The code located at arch/mips/lantiq/ included module.h to be able to use
the EXPORT_SYMBOL* macros. These can now be directly included using
export.h.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2937/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-14 13:59:24 +00:00
Ralf Baechle
b05e988ee8 MAINTAINERS: The MIPS git tree has moved.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-14 12:59:20 +00:00
Rabin Vincent
78345d2edc x86: Call stop_machine_text_poke() on all CPUs
It appears that stop_machine_text_poke() wants to be called on all CPUs,
like it's done from text_poke_smp().  Fix text_poke_smp_batch() to do
this.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Jason Baron <jbaron@redhat.com>
Link: http://lkml.kernel.org/r/1319702072-32676-1-git-send-email-rabin@rab.in
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-11-14 13:05:15 +01:00
Heiko Carstens
f6bf1a8acd [S390] topology: fix topology on z10 machines
Make sure that all cpus in a book on a z10 appear as book siblings
and not as core siblings. This fixes some performance regressions that
appeared after the book scheduling domain got introduced.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:09 +01:00
Jan Glauber
6ed54387dc [S390] crypto: avoid MSA3 and MSA4 instructions in ESA mode
MSA3 and MSA4 instructions are only available under CONFIG_64BIT.
Bail out before using any of these instructions if the kernel is
running in 31 bit mode.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:09 +01:00
Jan Glauber
cfa1e7e1d4 [S390] avoid STCKF if running in ESA mode
In ESA mode STCKF is not defined even if the facility bit is enabled.
To prevent an illegal operation we must also check if we run a 64 bit kernel.
To make the check perform well add the STCKF bit to the machine flags.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:09 +01:00
Michael Holzheu
3f25dc4fcb [S390] zfcpdump: Do not initialize zfcpdump in kdump mode
When the kernel is started in kdump mode, zfcpdump should not be
initialized because both dump methods can't be used at the same time.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:09 +01:00
Holger Dengler
bc615deaf3 [S390] ap: Setup processing for messages in request queue.
Setup timer for processing messages in request queue, if sending an AP
message returns with reason code AP_RESPONSE_RESET_IN_PROGRESS.

Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:09 +01:00
Michael Holzheu
96603b505c [S390] Kconfig: Select CONFIG_KEXEC for CONFIG_CRASH_DUMP
The kdump infrastructure is built on top of kexec. Therefore
CONFIG_KEXEC has to be enabled when CONFIG_CRASH_DUMP is selected.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:08 +01:00
Martin Schwidefsky
7a2512b744 [S390] incorrect note program header
'readelf -n' on the s390 vmlinux file generates lots of warnings about
corrupt notes. The reason is that the 'NOTE' program header has incorrect
file and memory sizes. The problem is that the section following the
NOTES section do not switch to a different phdr and they get added to
the NOTE program section. Add a dummy entry to the linker script that
switches to the data phdr before the start of the RODATA section.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:08 +01:00
Heiko Carstens
fa2fb2f4a5 [S390] pfault: ignore leftover completion interrupts
Ignore completion interrupts if the initial interrupt hasn't been
received and the addressed task is not running. This case can only
happen if leftover (pending) completion interrupt gets delivered
which wasn't removed with the PFAULT CANCEL operation during cpu
hotplug.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:08 +01:00
Martin Schwidefsky
09b538833b [S390] fix pgste update logic
The pgste_update_all / pgste_update_young and pgste_set_pte need to
check if the pte entry contains a valid page address before the storage
key can be accessed. In addition pgste_set_pte needs to set the access
key and fetch protection bit of the new pte entry, not the old entry.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:08 +01:00
Heiko Carstens
800252976b [S390] wire up process_vm syscalls
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-11-14 11:19:08 +01:00
Dave Airlie
f6252114cb vgaarb: a NULL bridge is acceptable for root devices.
I assumed all PCI buses had a bridge, but playing with qemu recently, I
discovered vgaarb bug where it wasn't detecting both devices shared a bridge
at the root level.

Don't check for NULL, if two buses have a NULL bridge, assume they share the
root bus.

Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-14 10:03:15 +00:00
Jesper Juhl
e53de8f00c ALSA: hda/realtek: remove redundant semicolon
Having just one semicolon after a break statement is enough.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-14 10:41:46 +01:00
Thomas Gleixner
d53dab3ae1 drm: Remove utterly bogus preempt_disable() sections
commit 27641c3f (drm/vblank: Add support for precise vblank
timestamping) adds preempt_disable()/enable() around a spin locked
section with the comments:

 * Disable preemption, so vblank_time_lock is held as short as
 * possible, even under a kernel with PREEMPT_RT patches.

/* Disable preemption while holding vblank_time_lock. Do
 * it explicitely to guard against PREEMPT_RT kernel.

Just that this has never been tested on a RT kernel which would have
granted that nonsense with a might_sleep() warning because
dev->vblank_time_lock is converted to a "sleeping" spinlock on RT.

So this is activly wrong on RT and superflous on mainline. Remove it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-14 09:28:50 +00:00
Maciej Żenczykowski
06236ac372 net-netlink: Add a new attribute to expose TCLASS values via netlink
commit 3ceca74966 added a TOS attribute.

Unfortunately TOS and TCLASS are both present in a dual-stack v6 socket,
furthermore they can have different values.  As such one cannot in a
sane way expose both through a single attribute.

Signed-off-by: Maciej Żenczyowski <maze@google.com>
CC: Murali Raja <muralira@google.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 01:08:49 -05:00
Mark Kamichoff
6d74eb9442 net/usb: Misc. fixes for the LG-VL600 LTE USB modem
Add checking for valid magic values (needed for stability in the event
corrupted packets are received) and remove some other unneeded checks.
Also, fix flagging device as WWAN (Bugzilla bug #39952).

Signed-off-by: Mark Kamichoff <prox@prolixium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:49:05 -05:00
Robert Marklund
3ac3546e5f net/smsc911x: Always wait for the chip to be ready
Wait for the chip to be ready before any access to it. On the
Snowball platform we need to enable an external regulator before
the chip comes online, and then it happens that the device is
not yet ready at probe time, so let's wait for it.

Signed-off-by: Robert Marklund <robert.marklund@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:40:50 -05:00
Andrey Vagin
ef5e0d8237 bridge: Fix potential deadlock on br->multicast_lock
multicast_lock is taken in softirq context, so we should use
spin_lock_bh() in userspace.

call-chain in softirq context:
run_timer_softirq()
	br_multicast_query_expired()

call-chain in userspace:
sysfs_write_file()
	store_multicast_snooping()
		br_multicast_toggle()

Signed-off-by: Andrew Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:38:53 -05:00
Haojian Zhuang
22f4cb4bd0 ARM: mmp: fix build error on gpio
Parameters of GPIO_REG() should be assigned as volatile.

arch/arm/plat-pxa/include/plat/gpio.h: In function ‘gpio_get_value’:
arch/arm/plat-pxa/include/plat/gpio.h:12:21: error: invalid operands to
binary & (have ‘void *’ and ‘int’)
arch/arm/plat-pxa/include/plat/gpio.h: In function ‘gpio_set_value’:
arch/arm/plat-pxa/include/plat/gpio.h:21:4: error: lvalue required as
left operand of assignment
arch/arm/plat-pxa/include/plat/gpio.h:23:4: error: lvalue required as
left operand of assignment

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-11-14 13:34:29 +08:00
Josh Boyer
731abb9cb2 ip6_tunnel: copy parms.name after register_netdevice
Commit 1c5cae815d removed an explicit call to dev_alloc_name in ip6_tnl_create
because register_netdevice will now create a valid name.  This works for the
net_device itself.

However the tunnel keeps a copy of the name in the parms structure for the
ip6_tnl associated with the tunnel.  parms.name is set by copying the net_device
name in ip6_tnl_dev_init_gen.  That function is called from ip6_tnl_dev_init in
ip6_tnl_create, but it is done before register_netdevice is called so the name
is set to a bogus value in the parms.name structure.

This shows up if you do a simple tunnel add, followed by a tunnel show:

[root@localhost ~]# ip -6 tunnel add remote fec0::100 local fec0::200
[root@localhost ~]# ip -6 tunnel show
ip6tnl0: ipv6/ipv6 remote :: local :: encaplimit 0 hoplimit 0 tclass 0x00 flowlabel 0x00000 (flowinfo 0x00000000)
ip6tnl%d: ipv6/ipv6 remote fec0::100 local fec0::200 encaplimit 4 hoplimit 64 tclass 0x00 flowlabel 0x00000 (flowinfo 0x00000000)
[root@localhost ~]#

Fix this by moving the strcpy out of ip6_tnl_dev_init_gen, and calling it after
register_netdevice has successfully returned.

Cc: stable@vger.kernel.org
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:24:06 -05:00
david decotigny
898bdf2cb4 forcedeth: fix stats on hardware without extended stats support
This change makes sure that tx_packets/rx_bytes ifconfig counters are
updated even on NICs that don't provide hardware support for these
stats: they are now updated in software. For the sake of consistency,
we also now have tx_bytes updated in software (hardware counters
include ethernet CRC, and software doesn't account for it).

This reverts parts of:
 - "forcedeth: statistics optimization" (21828163b2)
 - "forcedeth: Improve stats counters" (0bdfea8ba8)
 - "forcedeth: remove unneeded stats updates" (4687f3f364)

Tested:
  pktgen + loopback (http://patchwork.ozlabs.org/patch/124698/)
  reports identical tx_packets/rx_packets and tx_bytes/rx_bytes.

Signed-off-by: David Decotigny <david.decotigny@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:14:39 -05:00
Paul Bolle
77c1c7c4bd rds: drop "select LLIST"
Commit 1bc144b625 ("net, rds, Replace xlist in net/rds/xlist.h with
llist") added "select LLIST" to the RDS_RDMA Kconfig entry. But there is
no Kconfig symbol named LLIST. The select statement for that symbol is a
nop. Drop it.

lib/llist.o is builtin, so all that's needed to use the llist
functionality is to include linux/llist.h, which this commit also did.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:10:50 -05:00
Jesper Juhl
3ed90f766d net/packet: remove dead code and unneeded variable from prb_setup_retire_blk_timer()
We test for 'tx_ring' being != zero and BUG() if that's the case. So after
that check there is no way that 'tx_ring' could be anything _but_ zero, so
testing it again is just dead code. Once that dead code is removed, the
'pkc' local variable becomes entirely redundant, so remove that as well.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:09:21 -05:00
Ben Hutchings
9ff03b392f sparc: sigutil: Include <linux/errno.h>
This file introduced in 2.6.32.47 currently fails to compile:

arch/sparc/kernel/sigutil_64.c: In function 'save_fpu_state':
arch/sparc/kernel/sigutil_64.c:25: error: 'EFAULT' undeclared (first use in this function)

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-13 20:53:25 -08:00
Ben Hutchings
6b76106d8e block: Always check length of all iov entries in blk_rq_map_user_iov()
Even after commit 5478755616
("block: check for proper length of iov entries earlier ...")
we still won't check for zero-length entries after an unaligned
entry.  Remove the break-statement, so all entries are checked.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-13 19:58:09 +01:00
Nick Bowler
4b90a603a1 ah: Don't return NET_XMIT_DROP on input.
When the ahash driver returns -EBUSY, AH4/6 input functions return
NET_XMIT_DROP, presumably copied from the output code path.  But
returning transmit codes on input doesn't make a lot of sense.
Since NET_XMIT_DROP is a positive int, this gets interpreted as
the next header type (i.e., success).  As that can only end badly,
remove the check.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-12 18:13:32 -05:00
Will Deacon
a34dbfb03f ARM: 7160/1: setup: avoid overflowing {elf,arch}_name from proc_info_list
setup_processor copies the arch_name and elf_name fields out of the
selected proc_info_list into two fixed size buffers.

Since the proc_info_list structure is defined in a proc_*.S assembly
file, this can lead to subtle errors if the strings defined there are
too long (for example, corrupting the machine ID).

This patch uses snprintf instead of sprintf to ensure that these buffers
are not overrun.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-12 11:33:14 +00:00
wanzongshun
798681bf21 ARM: 7158/1: add new MFP implement for NUC900
This patch is to add new MFP implement in mfp.c,since nuc900 mmc driver
needs this function support.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-12 11:33:08 +00:00
wanzongshun
a6dc54460e ARM: 7157/1: fix a building WARNING for nuc900
This patch is to fix a WARNING which is the "modpost: Found 1 section
mismatch(es)" for nuc900 platform.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-12 11:32:35 +00:00
Olof Johansson
e7c86c7b26 ARM: 7156/1: l2x0: fix compile error on !CONFIG_USE_OF
fae2b89ab1 (ARM: l2x0: add empty l2x0_of_init) adds a static inline
function that returns -ENODEV, but at least on tegra cache-l2x0.h is
included without errno.h being pulled in first, resulting in compile
errors if OF isn't enabled:

In file included from arch/arm/mach-tegra/common.c:26:
arch/arm/include/asm/hardware/cache-l2x0.h: In function 'l2x0_of_init':
arch/arm/include/asm/hardware/cache-l2x0.h:110: error: 'ENODEV' undeclared (first use in this function)
arch/arm/include/asm/hardware/cache-l2x0.h:110: error: (Each undeclared identifier is reported only once
arch/arm/include/asm/hardware/cache-l2x0.h:110: error: for each function it appears in.)

Add errno.h to the include file to make it self-contained.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-12 11:32:34 +00:00
Matthew Garrett
1937335856 The Windows driver .inf disables ASPM on all cciss devices. Do the same.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: iss_storagedev@hp.com
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-11 22:05:54 +01:00
Casey Schaufler
40809565ca Smack: smackfs cipso seq read repair
Commit 272cd7a8c6 introduced
a change to the way rule lists are handled and reported in
the smackfs filesystem. One of the issues addressed had to
do with the termination of read requests on /smack/load.
This change introduced a error in /smack/cipso, which shares
some of the same list processing code.

This patch updates all the file access list handling in
smackfs to use the code introduced for /smack/load.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
2011-11-11 11:07:21 -08:00
Tony Lindgren
e9b7086b80 ARM: OMAP: Fix reprogramming of dpll1 rate
Commit a66cb3454f (ARM: OMAP: Map SRAM
later on with ioremap_exec()) moved the SRAM init to happen later
to remove a dependency to early SoC detection for map_io.

This broke booting on some boards not using Kconfig option for
OMAP_CLOCKS_SET_BY_BOOTLOADER as the dpll1 reprogramming would
cause the following error:

kernel BUG at arch/arm/plat-omap/sram.c:226!
Internal error: Oops - undefined instruction: 0 [#1] PREEMPT
Modules linked in:

CPU: 0    Not tainted  (3.2.0-rc1-e3 #9)
PC is at omap_sram_reprogram_clock+0x28/0x30
LR is at omap1_select_table_rate+0x88/0xb4
pc : [<c001b0c4>]    lr : [<c0019f54>]    psr: 600000d3
sp : c035bf10  ip : c035bf20  fp : c035bf1c
r10: c035bfd4  r9 : 54029252  r8 : c03f8120
r7 : c0362b50  r6 : 00b71b00  r5 : c03873cc  r4 : c0362b40
r3 : 00000000  r2 : c0362b40  r1 : 0000010a  r0 : 00002cb0
Flags: nZCv  IRQs off  FIQs off  Mode SVC_32  ISA ARM  Segment kernel
Control: 0000317f  Table: 10004000  DAC: 00000017
Process swapper (pid: 0, stack limit = 0xc035a270)
Stack: (0xc035bf10 to 0xc035c000)
bf00:                                     c035bf3c c035bf20 c0019f54 c001b0ac
bf20: 00001000 00002cb3 00000004 c035ed4c c035bf74 c035bf40 c033ea24 c0019edc
bf40: c02f526c 00000002 00000015 bc058c9b 93111a16 c035335c 02000000 c035ed4c
bf60: c035ed4c c03f8120 c035bf84 c035bf78 c00194c4 c033e8ec c035bfc4 c035bf88
bf80: c033bc24 c00194a0 c035bf90 c035bf98 00000000 00000000 00000000 00000000
bfa0: 00000001 00000000 c0354678 c035ece4 10004000 103532f4 c035bff4 c035bfc8
bfc0: c0338574 c033b598 00000000 00000000 00000000 c035467c 0000317d c035c03c
bfe0: c0354678 c035ece4 00000000 c035bff8 10008040 c0338508 00000000 00000000
Backtrace:
[<c001b09c>] (omap_sram_reprogram_clock+0x0/0x30) from [<c0019f54>] (omap1_select_table_rate+0x88/0xb4)
[<c0019ecc>] (omap1_select_table_rate+0x0/0xb4) from [<c033ea24>] (omap1_clk_init+0x148/0x334)
 r7:c035ed4c r6:00000004 r5:00002cb3 r4:00001000
[<c033e8dc>] (omap1_clk_init+0x0/0x334) from [<c00194c4>] (omap1_init_early+0x34/0x48)
 r8:c03f8120 r7:c035ed4c r6:c035ed4c r5:02000000 r4:c035335c
[<c0019490>] (omap1_init_early+0x0/0x48) from [<c033bc24>] (setup_arch+0x69c/0x79c)
[<c033b588>] (setup_arch+0x0/0x79c) from [<c0338574>] (start_kernel+0x7c/0x2f4)
[<c03384f8>] (start_kernel+0x0/0x2f4) from [<10008040>] (0x10008040)
 r7:c035ece4 r6:c0354678 r5:c035c03c r4:0000317d
Code: 0a000002 e1a0e00f e12fff13 e89da800 (e7f001f2)

Fix this by adding omap1_clk_late_init() that only reprograms dpll1
if the bootloader rate is less than 60MHz. This also allows removing
of the OMAP_CLOCKS_SET_BY_BOOTLOADER option.

Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-11 10:15:11 -08:00
Stratos Psomadakis
224736d911 libceph: Allocate larger oid buffer in request msgs
ceph_osd_request struct allocates a 40-byte buffer for object names.
RBD image names can be up to 96 chars long (100 with the .rbd suffix),
which results in the object name for the image being truncated, and a
subsequent map failure.

Increase the oid buffer in request messages, in order to avoid the
truncation.

Signed-off-by: Stratos Psomadakis <psomas@grnet.gr>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-11-11 09:50:19 -08:00
Sage Weil
774ac21da7 ceph: initialize root dentry
Set up d_fsdata on the root dentry.  This fixes a NULL pointer dereference
in ceph_d_prune on umount.  It also means we can eventually strip out all
of the conditional checks on d_fsdata because it is now set unconditionally
(prior to setting up the d_ops).

Fix the ceph_d_prune debug print while we're here.

Signed-off-by: Sage Weil <sage@newdream.net>
2011-11-11 09:50:17 -08:00
Kenji Kaneshige
b3c0045422 PCI: pciehp: wait 100 ms after Link Training check
If the port supports Link speeds greater than 5.0 GT/s, we must wait
for 100 ms after Link training completes before sending configuration
request.

Acked-by: Yinghai Lu <yinghai@kernel.org>
Tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-11 09:31:43 -08:00
Kenji Kaneshige
0027cb3e19 PCI: pciehp: wait 1000 ms before Link Training check
We need to wait for 1000 ms after Data Link Layer Link Active (DLLLA)
bit reads 1b before sending configuration request. Currently pciehp
does this wait after checking Link Training (LT) bit. But we need it
before checking LT bit because LT is still set even after DLLLA bit is
set on some platforms.

Acked-by: Yinghai Lu <yinghai@kernel.org>
Tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-11 09:31:34 -08:00
John W. Linville
fb14ca438c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2011-11-11 11:34:47 -05:00
Amitkumar Karwar
fada10584d mwifiex: fix association issue with AP configured in hidden SSID mode
Firmware expects 'max_ssid_length' field in
'struct mwifiex_ie_types_wildcard_ssid_params' to be '0' for
performing SSID specific scan. Currently driver updates it with
an actual SSID length. Hence UUT is not able to find the AP
configured in hidden SSID mode in scan results and association
fails.

max_ssid_length is filled with '0' to fix the issue.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-11 11:03:25 -05:00
Emmanuel Grumbach
43e5885658 iwlwifi: avoid a panic when unloading the module with RF Kill
When HW RF kill switch is set to kill the radio, our NIC issues an
interrupt after we stop the APM module. When we unload the module,
the driver disables and cleans the interrupts before stopping the
APM. So we have a real interrupt (inta not zero) pending.
When this interrupts pops up the tasklet has already been killed
and we crash.

Here is a logical description of the flow:

disable and clean interrupts
synchronize interrupts
kill the tasklet

stop the APM <<== creates an RF kill interrupt

free_irq <<== somehow our ISR is called here and we crash

Here is the panic message:

[  201.313636] BUG: unable to handle kernel paging request at ffff8800911b7150
[  201.314541] IP: [<ffffffff8106d652>] tasklet_action+0x62/0x130
[  201.315149] PGD 1c06063 PUD db37f067 PMD db408067 PTE 80000000911b7160
[  201.316456] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[  201.317324] CPU 1
[  201.317495] Modules linked in: arc4 iwlwifi(-) mac80211 cfg80211 netconsole configfs binfmt_misc i915 drm_kms_helper drm uvcvideo i2c_algo_bit videodev dell_laptop dcdbas intel_agp dell_wmi intel_ips psmouse intel_gtt v4l2_compat_ioctl32 asix usbnet mii serio_raw video sparse_keymap firewire_ohci sdhci_pci sdhci firewire_core e1000e crc_itu_t [last unloaded: configfs]
[  201.323839]
[  201.324015] Pid: 2061, comm: modprobe Not tainted 3.1.0-rc9-wl #4 Dell Inc. Latitude E6410/0667CC
[  201.324736] RIP: 0010:[<ffffffff8106d652>]  [<ffffffff8106d652>] tasklet_action+0x62/0x130
[  201.325128] RSP: 0018:ffff88011bc43ea0  EFLAGS: 00010286
[  201.325338] RAX: ffff88008ae70000 RBX: ffff8800911b7150 RCX: ffff88008ae70028
[  201.325555] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88008ae70000
[  201.325775] RBP: ffff88011bc43ec0 R08: 0000000000000000 R09: 0000000000000000
[  201.325994] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[  201.326212] R13: 0000000000000006 R14: 0000000000000100 R15: ffff88008e259fd8
[  201.326431] FS:  00007f4b90ea9700(0000) GS:ffff88011bc40000(0000) knlGS:0000000000000000
[  201.326657] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  201.326864] CR2: ffff8800911b7150 CR3: 000000008fd6d000 CR4: 00000000000006e0
[  201.327083] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  201.327302] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  201.327521] Process modprobe (pid: 2061, threadinfo ffff88008e258000, task ffff88008ae70000)
[  201.327747] Stack:
[  201.330494]  0000000000000046 0000000000000030 0000000000000001 0000000000000006
[  201.333870]  ffff88011bc43f30 ffffffff8106cd8a ffffffff811e1016 ffff88011bc43f08
[  201.337186]  0000000100000046 ffff88008e259fd8 0000000a10be2160 0000000000000006
[  201.340458] Call Trace:
[  201.342994]  <IRQ>
[  201.345656]  [<ffffffff8106cd8a>] __do_softirq+0xca/0x250
[  201.348185]  [<ffffffff811e1016>] ? pde_put+0x76/0x90
[  201.350730]  [<ffffffff8131aeae>] ? do_raw_spin_unlock+0x5e/0xb0
[  201.353261]  [<ffffffff811e1016>] ? pde_put+0x76/0x90
[  201.355776]  [<ffffffff8163ccfc>] call_softirq+0x1c/0x30
[  201.358287]  [<ffffffff8101531d>] do_softirq+0x9d/0xd0
[  201.360823]  [<ffffffff8106cb05>] irq_exit+0xd5/0xf0
[  201.363330]  [<ffffffff8163d5d6>] do_IRQ+0x66/0xe0
[  201.365819]  [<ffffffff81632673>] common_interrupt+0x73/0x73
[  201.368257]  <EOI>

Cc: <stable@kernel.org> 3.1+
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>
2011-11-11 11:03:24 -05:00
Ralf Baechle
71ca869375 MIPS: Fix build error due to missing inclusion of <linux/export.h>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-11 15:08:11 +00:00
Shawn Guo
8c6d8319ec arm/imx: remove imx_idle hook and use pm_idle instead
The patch removes imx_idle hook and use pm_idle instead to get imx
arch_idle prepared for the cleanup.  It's suggested by Russel King
as below.

> The final removal of mach/system.h depends on getting rid of the arch_idle
> thing.  While going through these headers, I was dismayed to find these:
>
> arch/arm/mach-s3c2410/include/mach/system.h:void (*s3c24xx_idle)(void);
> arch/arm/plat-mxc/include/mach/system.h:extern void (*imx_idle)(void);
>
> when we have a perfectly good pm_idle hook already in place - so there's
> no excuse for these especially when other platforms are already using
> pm_idle to hook their platform specific idle function into.  This is
> something that better be gone at the next merge window!

Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-11 15:56:06 +01:00
Fabio Estevam
6a53fc531d ARM: imx: Remove unused chip revision strings
Since commit (167a19d2: ARM: imx: Introduce generic function for displaying silicon revision)
we no longer need the chip revision strings, so remove them.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-11 15:56:06 +01:00
Vasily Averin
cf16123c9c [SCSI] aacraid: controller hangs if kernel uses non-default ASPM policy
Aacraid controller can hang on some nodes if kernel uses non-default
(powersave) ASPM policy.  Controller hangs shortly after successful load and
hardware detection. Scsi error handler detects this hang and tries to restart
hardware but it does not help.

Initially it was noticed on RHEL6-based openVZ kernel after backporting
aacraid driver from mainline (RHEL6 kernel with original driver works well)
http://bugzilla.openvz.org/show_bug.cgi?id=2043

This issue happens because default ASPM policy was changed in Red Hat
kernels. Therefore guys from Red Hat have noticed this problem long time ago:
on Fedora 12
 https://bugzilla.redhat.com/show_bug.cgi?id=540478
on Fedora 14
 https://bugzilla.redhat.com/show_bug.cgi?id=679385

In RHEL6 kernel this issue was fixed, ASPM was disabled in aacraid driver. In
kernel changelog I've found that seems it was done by Matthew Garrett: -
[scsi] aacraid: Disable ASPM by default (Matthew Garrett) [599735]

However seems this patch was not submitted to mainline. I've reproduced this
issue on vanilla 3.1.0 kernel booted with "pcie_aspm.policy=powersave" option,
So I believe it makes sense to do it now.

Signed-off-by:	Vasily Averin <vvs@sw.ru>
[mjg: Checking the Windows drivers indicates that they disable ASPM under all 
circumstances, so:]
Acked-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Achim Leubner <Achim_Leubner@pmc-sierra.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-11 08:19:01 -06:00
Rabin Vincent
7a401a972d backing-dev: ensure wakeup_timer is deleted
bdi_prune_sb() in bdi_unregister() attempts to removes the bdi links
from all super_blocks and then del_timer_sync() the writeback timer.

However, this can race with __mark_inode_dirty(), leading to
bdi_wakeup_thread_delayed() rearming the writeback timer on the bdi
we're unregistering, after we've called del_timer_sync().

This can end up with the bdi being freed with an active timer inside it,
as in the case of the following dump after the removal of an SD card.

Fix this by redoing the del_timer_sync() in bdi_destory().

 ------------[ cut here ]------------
 WARNING: at /home/rabin/kernel/arm/lib/debugobjects.c:262 debug_print_object+0x9c/0xc8()
 ODEBUG: free active (active state 0) object type: timer_list hint: wakeup_timer_fn+0x0/0x180
 Modules linked in:
 Backtrace:
 [<c00109dc>] (dump_backtrace+0x0/0x110) from [<c0236e4c>] (dump_stack+0x18/0x1c)
  r6:c02bc638 r5:00000106 r4:c79f5d18 r3:00000000
 [<c0236e34>] (dump_stack+0x0/0x1c) from [<c0025e6c>] (warn_slowpath_common+0x54/0x6c)
 [<c0025e18>] (warn_slowpath_common+0x0/0x6c) from [<c0025f28>] (warn_slowpath_fmt+0x38/0x40)
  r8:20000013 r7:c780c6f0 r6:c031613c r5:c780c6f0 r4:c02b1b29
 r3:00000009
 [<c0025ef0>] (warn_slowpath_fmt+0x0/0x40) from [<c015eb4c>] (debug_print_object+0x9c/0xc8)
  r3:c02b1b29 r2:c02bc662
 [<c015eab0>] (debug_print_object+0x0/0xc8) from [<c015f574>] (debug_check_no_obj_freed+0xac/0x1dc)
  r6:c7964000 r5:00000001 r4:c7964000
 [<c015f4c8>] (debug_check_no_obj_freed+0x0/0x1dc) from [<c00a9e38>] (kmem_cache_free+0x88/0x1f8)
 [<c00a9db0>] (kmem_cache_free+0x0/0x1f8) from [<c014286c>] (blk_release_queue+0x70/0x78)
 [<c01427fc>] (blk_release_queue+0x0/0x78) from [<c015290c>] (kobject_release+0x70/0x84)
  r5:c79641f0 r4:c796420c
 [<c015289c>] (kobject_release+0x0/0x84) from [<c0153ce4>] (kref_put+0x68/0x80)
  r7:00000083 r6:c74083d0 r5:c015289c r4:c796420c
 [<c0153c7c>] (kref_put+0x0/0x80) from [<c01527d0>] (kobject_put+0x48/0x5c)
  r5:c79643b4 r4:c79641f0
 [<c0152788>] (kobject_put+0x0/0x5c) from [<c013ddd8>] (blk_cleanup_queue+0x68/0x74)
  r4:c7964000
 [<c013dd70>] (blk_cleanup_queue+0x0/0x74) from [<c01a6370>] (mmc_blk_put+0x78/0xe8)
  r5:00000000 r4:c794c400
 [<c01a62f8>] (mmc_blk_put+0x0/0xe8) from [<c01a64b4>] (mmc_blk_release+0x24/0x38)
  r5:c794c400 r4:c0322824
 [<c01a6490>] (mmc_blk_release+0x0/0x38) from [<c00de11c>] (__blkdev_put+0xe8/0x170)
  r5:c78d5e00 r4:c74083c0
 [<c00de034>] (__blkdev_put+0x0/0x170) from [<c00de2c0>] (blkdev_put+0x11c/0x12c)
  r8:c79f5f70 r7:00000001 r6:c74083d0 r5:00000083 r4:c74083c0
 r3:00000000
 [<c00de1a4>] (blkdev_put+0x0/0x12c) from [<c00b0724>] (kill_block_super+0x60/0x6c)
  r7:c7942300 r6:c79f4000 r5:00000083 r4:c74083c0
 [<c00b06c4>] (kill_block_super+0x0/0x6c) from [<c00b0a94>] (deactivate_locked_super+0x44/0x70)
  r6:c79f4000 r5:c031af64 r4:c794dc00 r3:c00b06c4
 [<c00b0a50>] (deactivate_locked_super+0x0/0x70) from [<c00b1358>] (deactivate_super+0x6c/0x70)
  r5:c794dc00 r4:c794dc00
 [<c00b12ec>] (deactivate_super+0x0/0x70) from [<c00c88b0>] (mntput_no_expire+0x188/0x194)
  r5:c794dc00 r4:c7942300
 [<c00c8728>] (mntput_no_expire+0x0/0x194) from [<c00c95e0>] (sys_umount+0x2e4/0x310)
  r6:c7942300 r5:00000000 r4:00000000 r3:00000000
 [<c00c92fc>] (sys_umount+0x0/0x310) from [<c000d940>] (ret_fast_syscall+0x0/0x30)
 ---[ end trace e5c83c92ada51c76 ]---

Cc: stable@kernel.org
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-11 13:29:04 +01:00
Ingo Molnar
367177e501 Merge branch 'formingo/3.2/tip/timers/core' of git://git.linaro.org/people/jstultz/linux into timers/core
Conflicts:
	kernel/time/timekeeping.c
2011-11-11 08:10:42 +01:00
Charles Chin
afef2cfa0e ALSA: hda - pwr_nids cleanup for IDT codecs
Clean up and fix pwr_nids for 92HD71 / 73 / 83 family codecs; remove
pwr_mapping which was incorrect.

The original pwr_nids support of 92HD83xxx was incorrect and never
actually worked before.  Now we should have things working correctly
without having to hack by DID anymore.

It is also not necessary to explicitly turn on all the pins near the
beginning of patch_stac92hd83xxx() now, the pins will go though
initialization properly.

Tested on 92HD66 / 71 / 73 / 75 / 83 / 89 / 91 demo boards.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-11 08:05:28 +01:00
Tony Lindgren
7be620f797 ARM: OMAP: Fix dpll_data compile error when omap2 only is selected
Without this patch we get the following error:

arch/arm/mach-omap2/clkt_dpll.c: In function '_dpll_test_fint':
arch/arm/mach-omap2/clkt_dpll.c:98: error: 'struct dpll_data' has no member named 'flags'

Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-10 12:12:55 -08:00
Trond Myklebust
62e4a76987 NFS: Revert pnfs ugliness from the generic NFS read code path
pNFS-specific code belongs in the pnfs layer. It should not be
hijacking generic NFS read or write code paths.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-11-10 14:50:26 -05:00
Stanislav Kinsbursky
2aa13531bb SUNRPC: destroy freshly allocated transport in case of sockaddr init error
Otherwise we will leak xprt structure and struct net reference.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-11-10 14:50:07 -05:00
John Stultz
d65670a78c clocksource: Avoid selecting mult values that might overflow when adjusted
For some frequencies, the clocks_calc_mult_shift() function will
unfortunately select mult values very close to 0xffffffff.  This
has the potential to overflow when NTP adjusts the clock, adding
to the mult value.

This patch adds a clocksource.maxadj value, which provides
an approximation of an 11% adjustment(NTP limits adjustments to
500ppm and the tick adjustment is limited to 10%), which could
be made to the clocksource.mult value. This is then used to both
check that the current mult value won't overflow/underflow, as
well as warning us if the timekeeping_adjust() code pushes over
that 11% boundary.

v2: Fix max_adjustment calculation, and improve WARN_ONCE
messages.

v3: Don't warn before maxadj has actually been set

CC: Yong Zhang <yong.zhang0@gmail.com>
CC: David Daney <ddaney.cavm@gmail.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Chen Jie <chenj@lemote.com>
CC: zhangfx <zhangfx@lemote.com>
CC: stable@kernel.org
Reported-by: Chen Jie <chenj@lemote.com>
Reported-by: zhangfx <zhangfx@lemote.com>
Tested-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-11-10 11:27:08 -08:00
Maksim Rayskiy
5c20019713 MIPS: ASID conflict after CPU hotplug
I am running SMP Linux 2.6.37-rc1 on BMIPS5000 (single core dual thread)
and observe some abnormalities when doing system suspend/resume which I
narrowed down to cpu hotplugging. The suspend brings the second thread
processor down and then restarts it, after which I see memory corruption
in userspace. I started digging and found out that problem occurs because
while doing execve() the child process is getting the same ASID as the
parent, which obviously corrupts parent's address space.

Further digging showed that activate_mm() calls get_new_mmu_context() to
get a new ASID, but at this time ASID field in entryHi is 1, and
asid_cache(cpu) is 0x100 (it was just reset to ASID_FIRST_VERSION when
the secondary TP was booting).

So, get_new_mmu_context() increments the asid_cache(cpu) value to
0x101, and thus puts 0x01 into entryHi. The result - ASID field does
not get changed as it was supposed to.

My solution is very simple - do not reset asid_cache(cpu) on TP warm
restart.

Patchwork: https://patchwork.linux-mips.org/patch/1797/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-10 17:59:45 +00:00
David Daney
b2f909419b MIPS: Octeon: Fix compile error in arch/mips/cavium-octeon/flash_setup.c
The parse_mtd_partitions() and mtd_device_register() functions were
combined into mtd_device_parse_register().  So call that instead.

Signed-off-by: David Daney <david.daney@cavium.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2923/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-10 17:59:45 +00:00
Aaro Koskinen
54b2edf487 MIPS: errloongson2_clock: Fix build error by including linux/module.h
Fix the following compilation failure with v3.2-rc1 by including module.h:

  CC [M]  arch/mips/kernel/cpufreq/loongson2_clock.o
arch/mips/kernel/cpufreq/loongson2_clock.c:39:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:39:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:39:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:51:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:51:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:51:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:71:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:71:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:71:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:76:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:76:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:76:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:82:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:82:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:82:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:87:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:87:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:87:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:93:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:93:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:93:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:131:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:131:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:131:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:147:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:147:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:147:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:166:1: error: data definition has no type or storage class [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:166:1: error: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Werror=implicit-int]
arch/mips/kernel/cpufreq/loongson2_clock.c:166:1: error: parameter names (without types) in function declaration [-Werror]
arch/mips/kernel/cpufreq/loongson2_clock.c:168:15: error: expected declaration specifiers or '...' before string constant
arch/mips/kernel/cpufreq/loongson2_clock.c:169:20: error: expected declaration specifiers or '...' before string constant
arch/mips/kernel/cpufreq/loongson2_clock.c:170:16: error: expected declaration specifiers or '...' before string constant

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
To: linux-mips@linux-mips.org
To: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2922/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-10 17:59:45 +00:00
Mathias Nyman
6fd36ba021 x86, ioapic: Only print ioapic debug information for IRQs belonging to an ioapic chip
with "apic=verbose" the print_IO_APIC() function tries to print
IRQ to pin mappings for every active irq. It assumes chip_data
is of type irq_cfg and may cause an oops if not.

As the print_IO_APIC() is called from a late_initcall other
chained irq chips may already be registered with custom
chip_data information, causing an oops. This is the case with
intel MID SoC devices with gpio demuxers registered as irq_chips.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
[ -v2: fixed build failure ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-11-10 18:31:23 +01:00
Keith Packard
4415e63b13 drm/i915: Module parameters using '-1' as default must be signed type
Testing i915_panel_use_ssc for the default value was broken, so the
driver would never autodetect the correct value.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by:   Michel Alexandre Salim <salimma@fedoraproject.org>
Tested-by:     Michel Alexandre Salim <salimma@fedoraproject.org>
Cc: stable@kernel.org
2011-11-10 09:07:02 -08:00
Dan Carpenter
181a9d795a [SCSI] mpt2sas: add missing allocation.
There was supposed to be a kzalloc() here and the compiler complained
about it.
mpt2sas_scsih.c: In function ‘mpt2sas_scsih_reset_handler’:
mpt2sas_scsih.c:2807:21: warning: ‘fw_event’ may be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-10 10:50:38 -06:00
Jacob Pan
064a59b6dd x86/mrst: Avoid reporting wrong nmi status
Moorestown/Medfield platform does not have port 0x61 to report
NMI status, nor does it have external NMI sources. The only NMI
sources are from lapic, as results of perf counter overflow or
IPI, e.g. NMI watchdog or spin lock debug.

Reading port 0x61 on Moorestown will return 0xff which misled
NMI handlers to false critical errors such memory parity error.
The subsequent ioport access for NMI handling can also cause
undefined behavior on Moorestown.

This patch allows kernel process NMI due to watchdog or backrace
dump without unnecessary hangs.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
[hand applied]
Signed-off-by: Alan Cox <alan@linux.intel.com>
2011-11-10 16:21:01 +01:00
Dirk Brandewie
0a9153261d x86/mrst: Add support for Penwell clock calibration
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-11-10 16:20:59 +01:00
Jacob Pan
1ade93efd0 x86/apic: Allow use of lapic timer early calibration result
lapic timer calibration can be combined with tsc in platform
specific calibration functions. if such calibration result is
obtained early, we can skip the redundant calibration loops.

Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-11-10 16:20:57 +01:00
Jacob Pan
bb84ac2d3a x86/apic: Do not clear nr_irqs_gsi if no legacy irqs
nr_legacy_irqs is set in probe_nr_irqs_gsi, we should not clear
it after that. Otherwise, the result is that MSI irqs will be
allocated from the wrong range for the systems without legacy
PIC.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-11-10 16:20:55 +01:00
Feng Tang
cf8ff6b6ab x86/platform: Add a wallclock_init func to x86_platforms ops
Some wall clock devices use MMIO based HW register, this new
function will give them a chance to do some initialization work
before their get/set_time service get called.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-11-10 16:20:53 +01:00
Jassi Brar
98d97019c8 MAINTAINERS: Drop inactive Samsung ASoC maintainer
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-10 12:11:59 +00:00
MyungJoo Ham
952f6d1386 PM / devfreq: Remove compiler error after irq.h update
Added <linux/module.h> and <linux/stat.h> to avoid a compiler error
because linux/irq.h no longer includes linux/module.h after Linux 3.2.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-10 10:16:23 +01:00
Tejun Heo
d0985394e7 block: Revert "[SCSI] genhd: add a new attribute "alias" in gendisk"
This reverts commit a72c5e5eb7.

The commit introduced alias for block devices which is intended to be
used during logging although actual usage hasn't been committed yet.
This approach adds very limited benefit (raw log might be easier to
follow) which can be trivially implemented in userland but has a lot
of problems.

It is much worse than netif renames because it doesn't rename the
actual device but just adds conveninence name which isn't used
universally or enforced.  Everything internal including device lookup
and sysfs still uses the internal name and nothing prevents two
devices from using conflicting alias - ie. sda can have sdb as its
alias.

This has been nacked by people working on device driver core, block
layer and kernel-userland interface and shouldn't have been
upstreamed.  Revert it.

 http://thread.gmane.org/gmane.linux.kernel/1155104
 http://thread.gmane.org/gmane.linux.scsi/68632
 http://thread.gmane.org/gmane.linux.scsi/69776

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
 Acked-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Nao Nishijima <nao.nishijima.xt@hitachi.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-11-10 09:03:55 +01:00
Haojian Zhuang
c0a39151a4 ARM: pxa: fix inconsistent CONFIG_USB_PXA27X
Since CONFIG_USB_GADGET_PXA27X and other macros are renamed to
CONFIG_USB_PXA27X. Update them in arch/arm/mach-pxa and arch/arm/configs
to keep consistent.

Cc: stable@kernel.org
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-11-10 15:32:27 +08:00
Aaro Koskinen
77f6ca5a62 Input: ams_delta_serio - include linux/module.h
Fix the following compilation failure with v3.2-rc1 by including module.h:

  CC      drivers/input/serio/ams_delta_serio.o
drivers/input/serio/ams_delta_serio.c:33:15: error: expected declaration specifiers or '...' before string constant
drivers/input/serio/ams_delta_serio.c:34:20: error: expected declaration specifiers or '...' before string constant
drivers/input/serio/ams_delta_serio.c:35:16: error: expected declaration specifiers or '...' before string constant
drivers/input/serio/ams_delta_serio.c: In function 'ams_delta_serio_init':
drivers/input/serio/ams_delta_serio.c:155:2: error: 'THIS_MODULE' undeclared (first use in this function)
drivers/input/serio/ams_delta_serio.c:155:2: note: each undeclared identifier is reported only once for each function it appears in

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-11-09 21:19:54 -08:00
JJ Ding
3940d6185a Input: elantech - adjust hw_version detection logic
This patch fixes some v3 hardware (fw_version: 0x150500) wrongly detected
as v2 hardware.

Reported-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: JJ Ding <jj_ding@emc.com.tw>
Tested-By: Marc Dietrich <marvin24@gmx.de>
Acked-by: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-11-09 21:19:47 -08:00
David S. Miller
1e49570171 net: Fix references to deleted NET_ETHERNET Kconfig setting.
Change them over to plain "ETHERNET"

Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-11-09 19:26:53 -05:00
Guennadi Liakhovetski
af4c720efc PM / QoS: Properly use the WARN() macro in dev_pm_qos_add_request()
Make dev_pm_qos_add_request() use WARN() in a better way and do not hardcode
the function's name into the message (use __func__ instead).

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-10 00:44:18 +01:00
Magnus Damm
24050956e0 PM / Clocks: Only disable enabled clocks in pm_clk_suspend()
Refrain from running clk_disable() on clocks that
have not been enabled. A typical case when this can
happen is during Suspend-to-RAM for devices that have
no driver associated with them. In such case the clock
may be in default ACQUIRED state.

Without this patch the sh7372 Mackerel board crashes
in __clk_disable() during Suspend-to-RAM with:
"Trying to disable clock 0xdeadbeef with 0 usecount"
This happens for the CEU device which is added during
boot. The test case has no CEU driver included in the
kernel configuration. Needed for v3.2-rc1.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-10 00:44:10 +01:00
Magnus Damm
056879d2f2 ARM: mach-shmobile: sh7372 A3SP no_suspend_console fix
If "no_suspend_irq" is used on the sh7372 Mackerel board
with v3.2-rc1 then Suspend-to-RAM fails because the serial
console tries to write to the SCIF driver even though the
power domain is turned off.

This patch checks the state of "console_suspend_enabled"
to see if A3SP should be forced enabled.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-10 00:44:01 +01:00
Guennadi Liakhovetski
be2658ffe1 PM / shmobile: Don't skip debugging output in pd_power_up()
Don't skip debugging output upon earlier loop termination in pd_power_up().

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-11-10 00:43:52 +01:00
Tony Lindgren
5bb01a9918 ARM: OMAP: Fix map_io for Amstrad E3
Commit 7b88e62f5d (ARM: OMAP1: Use generic
map_io, init_early and init_irq) changed omap1 to use generic map_io.

Looks like I missed one board though. Fix this by adding a custom
map_io for Amstrad E3.

Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-09 15:29:31 -08:00
Fabio Estevam
1a1f2be2a4 ARM: 7155/1: arch.h: Declare 'pt_regs' locally
Fix the following warning when building imx_v4_v5_defconfig target:

  CC      arch/arm/mach-imx/mach-imx27ipcam.o
In file included from arch/arm/mach-imx/mach-imx27ipcam.c:18:
/home/fabio/linus/linux-2.6/arch/arm/include/asm/mach/arch.h:47: warning: 'struct pt_regs' declared inside parameter list
/home/fabio/linus/linux-2.6/arch/arm/include/asm/mach/arch.h:47: warning: its scope is only this definition or declaration, which is probably not what you want
arch/arm/mach-imx/mach-imx27ipcam.c:78: warning: initialization from incompatible pointer type

Declare 'struct pt_regs' locally.

Cc: Eric Miao <eric.miao@canonical.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-09 21:53:36 +00:00
Maxin B. John
5fc86281b9 ARM: 7154/1: mach-bcmring: fix build error in dma.c
Fixes this build error:

 CC      arch/arm/mach-bcmring/dma.o
arch/arm/mach-bcmring/dma.c: In function 'dma_request_channel_dbg':
arch/arm/mach-bcmring/dma.c:1022: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function)
arch/arm/mach-bcmring/dma.c:1022: error: (Each undeclared identifier is reported only once
arch/arm/mach-bcmring/dma.c:1022: error: for each function it appears in.)
arch/arm/mach-bcmring/dma.c:1024: error: implicit declaration of function 'schedule'
arch/arm/mach-bcmring/dma.c:1027: error: implicit declaration of function 'signal_pending'
arch/arm/mach-bcmring/dma.c: In function 'dma_free_channel':
arch/arm/mach-bcmring/dma.c:1092: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function)
arch/arm/mach-bcmring/dma.c: In function 'dma_map_add_region':
arch/arm/mach-bcmring/dma.c:1946: error: dereferencing pointer to incomplete type
arch/arm/mach-bcmring/dma.c:1948: error: dereferencing pointer to incomplete type
arch/arm/mach-bcmring/dma.c:1955: error: dereferencing pointer to incomplete type
make[1]: *** [arch/arm/mach-bcmring/dma.o] Error 1
make: *** [arch/arm/mach-bcmring] Error 2

Signed-off-by: Maxin B. John <maxin.john@gmail.com>
Reviewed-by: Jiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-09 21:53:35 +00:00
Maxin B. John
8658ca730f ARM: 7153/1: mach-bcmring: fix build error in core.c
Fixes this build error:

CC      arch/arm/mach-bcmring/core.o
arch/arm/mach-bcmring/core.c: In function 'bcmring_init_timer':
arch/arm/mach-bcmring/core.c:238: error: implicit declaration of function 'sp804_clockevents_register'
make[1]: *** [arch/arm/mach-bcmring/core.o] Error 1
make: *** [arch/arm/mach-bcmring] Error 2

Signed-off-by: Maxin B. John <maxin.john@gmail.com>
Reviewed-by: Jiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-09 21:53:31 +00:00
David S. Miller
3b971a7ceb Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-11-09 16:22:15 -05:00
Li Wei
b12f62efb8 ipv4: fix for ip_options_rcv_srr() daddr update.
When opt->srr_is_hit is set skb_rtable(skb) has been updated for
'nexthop' and iph->daddr should always equals to skb_rtable->rt_dst
holds, We need update iph->daddr either.

Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-09 15:59:00 -05:00
Nick Bowler
b7ea81a58a ah: Read nexthdr value before overwriting it in ahash input callback.
The AH4/6 ahash input callbacks read out the nexthdr field from the AH
header *after* they overwrite that header.  This is obviously not going
to end well.  Fix it up.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-09 15:55:53 -05:00
Nick Bowler
069294e813 ah: Correctly pass error codes in ahash output callback.
The AH4/6 ahash output callbacks pass nexthdr to xfrm_output_resume
instead of the error code.  This appears to be a copy+paste error from
the input case, where nexthdr is expected.  This causes the driver to
continuously add AH headers to the datagram until either an allocation
fails and the packet is dropped or the ahash driver hits a synchronous
fallback and the resulting monstrosity is transmitted.

Correct this issue by simply passing the error code unadulterated.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-09 15:55:53 -05:00
Paul Bolle
fecc735194 net: drivers/net/hippi/Kconfig should be sourced
Commit ff5a3b509e ("hippi: Move the HIPPI driver") moved the HIPPI
driver into drivers/net/hippi. It didn't source
drivers/net/hippi/Kconfig though, so it didn't make all necessary
Kconfig changes. So let drivers/net/kconfig source HIPPI's Kconfig file.

[ Fix syntax error at the end of HIPP's Kconfig file. -DaveM ]

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-09 15:55:06 -05:00
Ricardo Ribalda
f79d7e6f6a net/ll_temac: FIX : Wait for indirect wait to end
While tracing down a connectivity problem on the temac I connected a
probe to the Cross bar irq, and it was triggered when doing
ifdown->ifup.

This is fixed once waiting for the indirect write to end. Since it is
not on the hot path there is no performance loss.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-09 15:39:57 -05:00
Ricardo Ribalda
50ec1538fa net/temac: FIX segfault when process old irqs
Do not enable the irq until the scatter gather registers are ready to
handle the data. Otherwise an irq from a packet send/received before
last close can lead to an access to an invalid memory region on the irq
handler.

Also, stop the dma engine on close.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-09 15:37:38 -05:00
Johannes Berg
0ecfe806f1 mac80211: fix race between connection monitor & suspend
When the connection monitor timer fires right before
suspend, the following will happen:
 timer fires -> monitor_work gets queued
 suspend calls ieee80211_sta_quiesce
 ieee80211_sta_quiesce:
  - deletes timer
  - cancels monitor_work synchronously, running it
  [note wrong order of these steps]
 monitor_work runs, re-arming the timer
 later, timer fires while system should be quiesced

This causes a warning:

WARNING: at net/mac80211/util.c:540 ieee80211_can_queue_work+0x35/0x40 [mac80211]()

but is otherwise harmless. I'm not completely sure
this is the scenario Thomas stumbled across, but it
is the only way I can right now see the warning in
a scenario like the one he reported.

Reported-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 14:35:56 -05:00
Steven Miao
d929bbc630 wireless: libertas: fix unaligned le64 accesses
use get_unaligned_le64() to get timestamp

Signed-off-by: Steven Miao <realmz6@gmail.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 14:35:55 -05:00
Luis R. Rodriguez
58ebacc66b cfg80211: fix bug on regulatory core exit on access to last_request
Commit 4d9d88d1 by Scott James Remnant <keybuk@google.com> added
the .uevent() callback for the regulatory device used during
the platform device registration. The change was done to account
for queuing up udev change requests through udevadm triggers.
The change also meant that upon regulatory core exit we will now
send a uevent() but the uevent() callback, reg_device_uevent(),
also accessed last_request. Right before commiting device suicide
we free'd last_request but never set it to NULL so
platform_device_unregister() would lead to bogus kernel paging
request. Fix this and also simply supress uevents right before
we commit suicide as they are pointless.

This fix is required for kernels >= v2.6.39

$ git describe --contains 4d9d88d1
v2.6.39-rc1~468^2~25^2^2~21

The impact of not having this present is that a bogus paging
access may occur (only read) upon cfg80211 unload time. You
may also get this BUG complaint below. Although Johannes
could not reproduce the issue this fix is theoretically correct.

mac80211_hwsim: unregister radios
mac80211_hwsim: closing netlink
BUG: unable to handle kernel paging request at ffff88001a06b5ab
IP: [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211]
PGD 1836063 PUD 183a063 PMD 1ffcb067 PTE 1a06b160
Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
CPU 0
Modules linked in: cfg80211(-) [last unloaded: mac80211]

Pid: 2279, comm: rmmod Tainted: G        W   3.1.0-wl+ #663 Bochs Bochs
RIP: 0010:[<ffffffffa030df9a>]  [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211]
RSP: 0000:ffff88001c5f9d58  EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88001d2eda88 RCX: ffff88001c7468fc
RDX: ffff88001a06b5a0 RSI: ffff88001c7467b0 RDI: ffff88001c7467b0
RBP: ffff88001c5f9d58 R08: 000000000000ffff R09: 000000000000ffff
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88001c7467b0
R13: ffff88001d2eda78 R14: ffffffff8164a840 R15: 0000000000000001
FS:  00007f8a91d8a6e0(0000) GS:ffff88001fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff88001a06b5ab CR3: 000000001c62e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process rmmod (pid: 2279, threadinfo ffff88001c5f8000, task ffff88000023c780)
Stack:
 ffff88001c5f9d98 ffffffff812ff7e5 ffffffff8176ab3d ffff88001c7468c2
 000000000000ffff ffff88001d2eda88 ffff88001c7467b0 ffff880000114820
 ffff88001c5f9e38 ffffffff81241dc7 ffff88001c5f9db8 ffffffff81040189
Call Trace:
 [<ffffffff812ff7e5>] dev_uevent+0xc5/0x170
 [<ffffffff81241dc7>] kobject_uevent_env+0x1f7/0x490
 [<ffffffff81040189>] ? sub_preempt_count+0x29/0x60
 [<ffffffff814cab1a>] ? _raw_spin_unlock_irqrestore+0x4a/0x90
 [<ffffffff81305307>] ? devres_release_all+0x27/0x60
 [<ffffffff8124206b>] kobject_uevent+0xb/0x10
 [<ffffffff812fee27>] device_del+0x157/0x1b0
 [<ffffffff8130377d>] platform_device_del+0x1d/0x90
 [<ffffffff81303b76>] platform_device_unregister+0x16/0x30
 [<ffffffffa030fffd>] regulatory_exit+0x5d/0x180 [cfg80211]
 [<ffffffffa032bec3>] cfg80211_exit+0x2b/0x45 [cfg80211]
 [<ffffffff8109a84c>] sys_delete_module+0x16c/0x220
 [<ffffffff8108a23e>] ? trace_hardirqs_on_caller+0x7e/0x120
 [<ffffffff814cba02>] system_call_fastpath+0x16/0x1b
Code: <all your base are belong to me>
RIP  [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211]
 RSP <ffff88001c5f9d58>
CR2: ffff88001a06b5ab
---[ end trace 147c5099a411e8c0 ]---

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Scott James Remnant <keybuk@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 14:35:55 -05:00
Johannes Berg
5b2bbf75a2 mac80211: fix bug in ieee80211_build_probe_req
ieee80211_probereq_get() can return NULL in
which case we should clean up & return NULL
in ieee80211_build_probe_req() as well.

Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 14:35:55 -05:00
Johannes Berg
f8d1ccf155 mac80211: fix NULL dereference in radiotap code
When receiving failed PLCP frames is enabled, there
won't be a rate pointer when we add the radiotap
header and thus the kernel will crash. Fix this by
not assuming the rate pointer is always valid. It's
still always valid for frames that have good PLCP
though, and that is checked & enforced.

This was broken by my
commit fc88518916
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Fri Jul 30 13:23:12 2010 +0200

    mac80211: don't check rates on PLCP error frames

where I removed the check in this case but didn't
take into account that the rate info would be used.

Reported-by: Xiaokang Qin <xiaokang.qin@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 14:35:55 -05:00
John W. Linville
e29ec62470 Merge branch 'master' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2011-11-09 13:41:11 -05:00
Hannes Reinecke
745718132c [SCSI] Silencing 'killing requests for dead queue'
When we tear down a device we try to flush all outstanding
commands in scsi_free_queue(). However the check in
scsi_request_fn() is imperfect as it only signals that
we _might start_ aborting commands, not that we've actually
aborted some.
So move the printk inside the scsi_kill_request function,
this will also give us a hint about which commands are aborted.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-09 12:07:07 -06:00
James Bottomley
4e6c82b361 [SCSI] fix WARNING: at drivers/scsi/scsi_lib.c:1704
On Mon, 2011-11-07 at 17:24 +1100, Stephen Rothwell wrote:
> Hi all,
>
> Starting some time last week I am getting the following during boot on
> our PPC970 blade:
>
> calling  .ipr_init+0x0/0x68 @ 1
> ipr: IBM Power RAID SCSI Device Driver version: 2.5.2 (April 27, 2011)
> ipr 0000:01:01.0: Found IOA with IRQ: 26
> ipr 0000:01:01.0: Starting IOA initialization sequence.
> ipr 0000:01:01.0: Adapter firmware version: 06160039
> ipr 0000:01:01.0: IOA initialized.
> scsi0 : IBM 572E Storage Adapter
> ------------[ cut here ]------------
> WARNING: at drivers/scsi/scsi_lib.c:1704
> Modules linked in:
> NIP: c00000000053b3d4 LR: c00000000053e5b0 CTR: c000000000541d70
> REGS: c0000000783c2f60 TRAP: 0700   Not tainted  (3.1.0-autokern1)
> MSR: 8000000000029032 <EE,ME,CE,IR,DR>  CR: 24002024  XER: 20000002
> TASK = c0000000783b8000[1] 'swapper' THREAD: c0000000783c0000 CPU: 0
> GPR00: 0000000000000001 c0000000783c31e0 c000000000cf38b0 c00000000239a9d0
> GPR04: c000000000cbe8f8 0000000000000000 c0000000783c3040 0000000000000000
> GPR08: c000000075daf488 c000000078a3b7ff c000000000bcacc8 0000000000000000
> GPR12: 0000000044002028 c000000007ffb000 0000000002e40000 000000000099b800
> GPR16: 0000000000000000 c000000000bba5fc c000000000a61db8 0000000000000000
> GPR20: 0000000001b77200 0000000000000000 c000000078990000 0000000000000001
> GPR24: c000000002396828 0000000000000000 0000000000000000 c000000078a3b938
> GPR28: fffffffffffffffa c0000000008ad2c0 c000000000c7faa8 c00000000239a9d0
> NIP [c00000000053b3d4] .scsi_free_queue+0x24/0x90
> LR [c00000000053e5b0] .scsi_alloc_sdev+0x280/0x2e0
> Call Trace:
> [c0000000783c31e0] [c000000000c7faa8] wireless_seq_fops+0x278d0/0x2eb88 (unreliable)
> [c0000000783c3270] [c00000000053e5b0] .scsi_alloc_sdev+0x280/0x2e0
> [c0000000783c3330] [c00000000053eba0] .scsi_probe_and_add_lun+0x390/0xb40
> [c0000000783c34a0] [c00000000053f7ec] .__scsi_scan_target+0x16c/0x650
> [c0000000783c35f0] [c00000000053fd90] .scsi_scan_channel+0xc0/0x100
> [c0000000783c36a0] [c00000000053fefc] .scsi_scan_host_selected+0x12c/0x1c0
> [c0000000783c3750] [c00000000083dcb4] .ipr_probe+0x2c0/0x390
> [c0000000783c3830] [c0000000003f50b4] .local_pci_probe+0x34/0x50
> [c0000000783c38a0] [c0000000003f5f78] .pci_device_probe+0x148/0x150
> [c0000000783c3950] [c0000000004e1e8c] .driver_probe_device+0xdc/0x210
> [c0000000783c39f0] [c0000000004e20cc] .__driver_attach+0x10c/0x110
> [c0000000783c3a80] [c0000000004e1228] .bus_for_each_dev+0x98/0xf0
> [c0000000783c3b30] [c0000000004e1bf8] .driver_attach+0x28/0x40
> [c0000000783c3bb0] [c0000000004e07d8] .bus_add_driver+0x218/0x340
> [c0000000783c3c60] [c0000000004e2a2c] .driver_register+0x9c/0x1b0
> [c0000000783c3d00] [c0000000003f62d4] .__pci_register_driver+0x64/0x140
> [c0000000783c3da0] [c000000000b99f88] .ipr_init+0x4c/0x68
> [c0000000783c3e20] [c00000000000ad24] .do_one_initcall+0x1a4/0x1e0
> [c0000000783c3ee0] [c000000000b512d0] .kernel_init+0x14c/0x1fc
> [c0000000783c3f90] [c000000000022468] .kernel_thread+0x54/0x70
> Instruction dump:
> ebe1fff8 7c0803a6 4e800020 7c0802a6 fba1ffe8 fbe1fff8 7c7f1b78 f8010010
> f821ff71 e8030398 3120ffff 7c090110 <0b000000> e86303b0 482de065 60000000
> ---[ end trace 759bed76a85e8dec ]---
> scsi 0:0:1:0: Direct-Access     IBM-ESXS MAY2036RC        T106 PQ: 0 ANSI: 5
> ------------[ cut here ]------------
>
> I get lots more of these.  The obvious commit to point the finger at
> is 3308511c93 ("[SCSI] Make scsi_free_queue() kill pending SCSI
> commands") but the root cause may be something different.

Caused by

commit f7c9c6bb14
Author: Anton Blanchard <anton@samba.org>
Date:   Thu Nov 3 08:56:22 2011 +1100

    [SCSI] Fix block queue and elevator memory leak in scsi_alloc_sdev

Doesn't completely do the teardown.  The true fix is to do a proper
teardown instead of hand rolling it

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: stable@kernel.org	#2.6.38+
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-11-09 12:05:23 -06:00
David Daney
8d804d4fdf STAGING: octeon-ethernet: Fix compile error caused by skb_frag_struct change
Evidently the definition of struct skb_frag_struct has changed, so we
need to change to match it.

Signed-off-by: David Daney <david.daney@cavium.com>
To: netdev@vger.kernel.org
To: gregkh@suse.de
To: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/2909/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-09 17:14:27 +00:00
Kyungmin Park
76ee455713 ARM: EXYNOS: Fix compiler error with THIS_MODULE
CC      arch/arm/mach-exynos/cpuidle.o
arch/arm/mach-exynos/cpuidle.c:36: error: 'THIS_MODULE' undeclared here (not in a function)
arch/arm/mach-exynos/cpuidle.c: In function 'exynos4_enter_idle':
arch/arm/mach-exynos/cpuidle.c:42: error: storage size of 'before' isn't known
arch/arm/mach-exynos/cpuidle.c:42: error: storage size of 'after' isn't known
arch/arm/mach-exynos/cpuidle.c:46: error: implicit declaration of function 'do_gettimeofday'
arch/arm/mach-exynos/cpuidle.c:52: error: 'USEC_PER_SEC' undeclared (first use in this function)
arch/arm/mach-exynos/cpuidle.c:52: error: (Each undeclared identifier is reported only once
arch/arm/mach-exynos/cpuidle.c:52: error: for each function it appears in.)
arch/arm/mach-exynos/cpuidle.c:42: warning: unused variable 'after'
arch/arm/mach-exynos/cpuidle.c:42: warning: unused variable 'before'
make[1]: *** [arch/arm/mach-exynos/cpuidle.o] Error 1

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: Fixed as per Stephen's suggestion]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-11-09 14:07:32 +09:00
David Daney
8ff8584e51 MIPS: Hook up process_vm_readv and process_vm_writev system calls.
Signed-off-by: David Daney <david.daney@cavium.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2918/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-09 00:07:56 +00:00
Eyal Shapira
cc438fccd5 wl12xx: fix wl12xx_scan_sched_scan_ssid_list() check that all given ssids are in filters
A minor fix for the check that verifies that all given SSIDs (in req) exist
in the filters (the match sets)

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08 15:02:45 -05:00
Helmut Schaa
a59be0811c ath: Fix NULL ptr dereference in ath_reg_apply_world_flags
This happens with devices using a regulatory domain 0x68 that are only
5Ghz capable because ath_reg_apply_active_scan_flags assumes that we
always have a 2,4Ghz band.

CPU 0 Unable to handle kernel paging request at virtual address 00000000, epc == 82cd838c, ra == 82cd8384
Oops[#1]:
Cpu 0
$ 0 : 00000000 00000061 00000003 00000024
$ 4 : 00000003 000016c1 82f900ac 00000024
$ 8 : 00000000 82cda304 0058bad8 00000005
$12 : 005908f8 001e8481 00000003 1dcd6500
$16 : 00000002 00000000 82c700c0 82c700c0
$20 : 82d415e4 82c70d64 82c70200 82c715bc
$24 : 00000000 11e1a300
$28 : 82ce2000 82ce3c70 82c715a8 82cd8384
Hi : 00000000
Lo : 0000001e
epc : 82cd838c ath_reg_apply_world_flags+0x78/0x17c [ath]
Not tainted
ra : 82cd8384 ath_reg_apply_world_flags+0x70/0x17c [ath]
Status: 1000d403 KERNEL EXL IE
Cause : 80800008
BadVA : 00000000
PrId : 00019374 (MIPS 24Kc)
Modules linked in: ath9k(+) ath9k_common ath9k_hw ath mac80211 cfg80211
	compat_firmware_class compat arc4 aes_generic deflate ecb cbc
	leds_gpio button_hotplug gpio_buttons input_polldev ie
Process insmod (pid: 464, threadinfo=82ce2000, task=838b31d8, tls=00000000)
Stack : 00000000 00000002 82f900ac 82c700c0 82d415e4 82c70d64 00000000 00000068
82f900ac 82cd88f4 82c700c0 82cda304 00000001 000020f0 82f90000 82c70d40
00000002 82f90000 82f900ac 82d4207c 82d518a0 00000002 7fee6118 8017c0d8
00000008 8397ba00 82c70d40 00000000 82c70200 83813000 83813058 b0010000
82d518a0 00000002 7fee6118 82d4b8c8 83445cc0 80120dc0 83804000 800eeda0
...
Call Trace:
[<82cd838c>] ath_reg_apply_world_flags+0x78/0x17c [ath]
[<82cd88f4>] ath_regd_init+0x464/0x488 [ath]
[<82d4207c>] ath9k_init_device+0x6a4/0x6b4 [ath9k]
[<82d4b8c8>] ath_pci_probe+0x27c/0x358 [ath9k]
[<80181de0>] pci_device_probe+0x64/0xa4
[<8019e874>] driver_probe_device+0xb8/0x190
[<8019e9b8>] __driver_attach+0x6c/0xa4
[<8019dfc0>] bus_for_each_dev+0x60/0xb0
[<8019d744>] bus_add_driver+0xc4/0x25c
[<8019ed6c>] driver_register+0xe0/0x198
[<8018206c>] __pci_register_driver+0x50/0xe0
[<82dd0010>] ath9k_init+0x10/0x54 [ath9k]
[<8006b4a0>] do_one_initcall+0x68/0x1ec
[<800a901c>] sys_init_module+0xec/0x23c
[<80062544>] stack_done+0x20/0x3c

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08 15:02:45 -05:00
Johannes Berg
c26887d2a4 cfg80211: fix missing kernel-doc
Two new struct members were not documented, fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08 15:02:44 -05:00
John W. Linville
9270fd61a3 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth 2011-11-08 14:59:14 -05:00
Steffen Klassert
2bc8ca40f9 ipv4: Fix inetpeer expire time information
As we update the learned pmtu informations on demand, we might
report a nagative expiration time value to userspace if the
pmtu informations are already expired and we have not send a
packet to that inetpeer after expiration. With this patch we
send a expire time of null to userspace after expiration
until the next packet is send to that inetpeer.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08 14:40:40 -05:00
Eric Dumazet
20db93c340 net: min_pmtu default is 552
Small fix in Documentation, since min_pmtu is 512 + 20 + 20 = 552

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08 14:21:44 -05:00
Feng King
6d67e9beb6 tcp: Fix comments for Nagle algorithm
TCP_NODELAY is weaker than TCP_CORK, when TCP_CORK was set, small
segments will always pass Nagle test regardless of TCP_NODELAY option.

Signed-off-by: Feng King <kinwin2008@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08 14:02:47 -05:00
oftedal
59caa5612c sunhme: Allow usage on SBI based SBus systems
To prevent the SBus driver for Sun Happy Meal cards from being loaded for
PCI cards utilizing the same chipset, a filter was added to the probe
function in commit 0b492fce3d.

The filter was implemented by checking the name of the parent node in
the OF tree. This patch extends this filter, so that the driver will
load on SBus systems that are based upon SBI SBus Bridges.

Signed-off-by: Kjetil Oftedal <oftedal@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08 14:01:42 -05:00
Eric Dumazet
e50e705ca7 l2tp: fix l2tp_udp_recv_core()
pskb_may_pull() can change skb->data, so we have to load ptr/optr at the
right place.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08 13:59:44 -05:00
Mike Marciniszyn
042f36e156 IB/qib: Don't use schedule_work()
It was mistakenly introduced by dde05cbdf8 ("IB/qib: Hold links
until tuning data is available").

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-11-08 10:37:53 -08:00
Dirk B
5f300acd8a ARM: 7152/1: distclean: Remove generated .dtb files
The patch 'arm/dt: Add dtb make rule' adds support to
create a .dtb file. But this is never removed afterwards.
Remove the generated .dtb file if 'distclean' is called.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Shawn Guo <shawn.guo@freescale.com>
Cc: Jason Liu <jason.hui@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-08 18:25:04 +00:00
Catalin Marinas
8428e84d42 ARM: 7150/1: Allow kernel unaligned accesses on ARMv6+ processors
Recent gcc versions generate unaligned accesses by default on ARMv6 and
later processors. This patch ensures that the SCTLR.A bit is always
cleared on such processors to avoid kernel traping before
alignment_init() is called.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: John Linn <John.Linn@xilinx.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-08 18:25:04 +00:00
Ulf Hansson
71e63e748e ARM: 7149/1: spi/pl022: Enable clock in probe
Make sure we enable the clock before leaving probe.

Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-08 18:25:03 +00:00
Al Cooper
4f1a1eb530 MIPS: Kernel hangs occasionally during boot.
The Kernel hangs occasionally during boot after "Calibrating delay loop..".
This is caused by the c0_compare_int_usable() routine in cevt-r4k.c
returning false which causes the system to disable the timer and hang later.
The false return happens because the routine is using a series of four calls
to irq_disable_hazard() as a delay while it waits for the timer changes to
propagate to the cp0 cause register. On newer MIPS cores, like the 74K, the
series of irq_disable_hazard() calls turn into ehb instructions and can take
as little as a few clock ticks for all 4 instructions. This is not enough of
a delay, so the routine thinks the timer is not working.  This fix uses up
to a max number of cycle counter ticks for the delay and uses
back_to_back_c0_hazard() instead of irq_disable_hazard() to handle the
hazard condition between cp0 writes and cp0 reads.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2911/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-08 17:59:22 +00:00
Nico Erfurth
ea1649dea9 Fix incorrect usage of NET_IP_ALIGN
The driver used NET_IP_ALIGN to remove some additional padding inside of
the rx_fixup function. On many architectures NET_IP_ALIGN defaults to 2
which removed the correct amount of bytes.

On MCORE2-machines commit ea812ca1b0
introduces a change which sets NET_IP_ALIGN to 0 by default. Which
triggered the bug on these machines.

This fix introduces a new RXW_PADDING define and uses this instead of
NET_IP_ALIGN. The name was taken from the original SMSC7500 driver which
is provided by SMSC.

Signed-off-by: Nico Erfurth <ne@erfurth.eu>
Tested-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08 12:37:07 -05:00
Brian Haley
c457338d7a ipv6: drop packets when source address is multicast
RFC 4291 Section 2.7 says Multicast addresses must not be used as source
addresses in IPv6 packets - drop them on input so we don't process the
packet further.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Reported-and-Tested-by: Kumar Sanghvi <divinekumar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08 12:37:06 -05:00
hayeswang
10953db8e1 r8169: increase the delay parameter of pm_schedule_suspend
The link down would occur when reseting PHY. And it would take about 2 ~ 5 seconds
from link down to link up. If the delay of pm_schedule_suspend is not long enough,
the device would enter runtime_suspend before link up. After link up, the device
would wake up and reset PHY again. Then, you would find the driver keep in a loop
of runtime_suspend and rumtime_resume.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-08 12:37:06 -05:00
Axel Lin
adf463626a ASoC: wm9081: Don't write WM9081_BIAS_ENA bit to WM9081_VMID_CONTROL register
WM9081_BIAS_ENA is the bit[1] of WM9081_BIAS_CONTROL_1 register (05h).
Current code incorrectly write it to WM9081_VMID_CONTROL(04h) register.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-08 15:39:36 +00:00
Axel Lin
f1e10354fc ASoC: wm9081: Fix reading wrong register for setting VMID 2*240k
VMID Divider Enable and Select is controlled by BIT[2:1] of WM9081_VMID_CONTROL
register (04h).
Current code reads wrong register (WM9081_BIAS_CONTROL_1) for setting
VMID 2*240k.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-08 15:39:32 +00:00
Luck, Tony
66f5ddf30a x86/mce: Make mce_chrdev_ops 'static const'
Arjan would like to make struct file_operations const, but
mce-inject directly writes to the mce_chrdev_ops to install its
write handler. In an ideal world mce-inject would have its own
character device, but we have a sizable legacy of test scripts
that hardwire "/dev/mcelog", so it would be painful to switch to
a separate device now. Instead, this patch switches to a stub
function in the mce code, with a registration helper that
mce-inject can call when it is loaded.

Note that this would also allow for a sane process to allow
mce-inject to be unloaded again (with an unregister function,
and appropriate module_{get,put}() calls), but that is left for
potential future patches.

Reported-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/4eb2e1971326651a3b@agluck-desktop.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-11-08 16:17:11 +01:00
Wen-chien Jesse Sung
d13431ca3e Bluetooth: Add support for Broadcom BCM20702A0
Since this device declares itself as vendor specific, must add
a new entry to device ID table to support it.

usb-device output of this device:

T:  Bus=01 Lev=02 Prnt=02 Port=03 Cnt=01 Dev#=  3 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=413c ProdID=8197 Rev=01.12
S:  Manufacturer=Broadcom Corp
S:  Product=BCM20702A0
S:  SerialNumber=D0DF9AA9C9F1
C:  #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
I:  If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
I:  If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none)

Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-11-08 13:15:43 -02:00
Venkat Subbiah
e63fb7a9da MIPS: Octeon: Mark SMP-IPI interrupt as IRQF_NO_THREAD
This is to exclude it from force threading to allow RT patch set to work.
And while on this line
* Remove IRQF_DISABLED as as this flag is NOOP
* Add IRQF_PERCPU as this is a per cpu interrupt.

Signed-off-by: Venkat Subbiah <venkat.subbiah@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
To: linux-mips@linux-mips.org
To: linux-rt-users@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2817/
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-08 12:35:30 +00:00
Florian Fainelli
df55a66add MIPS: BCM47xx: fix build with GENERIC_GPIO configuration
Since eb9ae7f2 (gpio: fix build error in include/asm-generic/gpio.h)
the generic version of gpio.h calls __gpio_{set,get}_value which we
do not define. Get rid of asm-generic/gpio.h and define the missing
stubs directly for BCM47xx to build.

Reported-by: Ralf Baechle <ralf@linux-mips.org>
To: linux-mips@linux-mips.org
CC: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/2885/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-08 12:35:29 +00:00
Ralf Baechle
7985808151 MIPS: NXP: Remove unused source files.
The NXP code was moved for 2.6.36 but two files survived unused in the
old location.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-08 12:35:29 +00:00
Thomas Jarosch
617d101754 MIPS: Yosemite, Emma: Fix off-by-two in arcs_cmdline buffer size check
Cause is a misplaced bracket.

The code

    strlen(buf+1)

will be two bytes less than

    strlen(buf)+1

The +1 is in this code to reserve space for an additional space character.

[ralf@linux-mips.org: Thomas' original patch fixed the issue only for
 Yosemite but the same bug exists also in Emma.]

Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Patchwork: https://patchwork.linux-mips.org/patch/2861/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-08 12:35:29 +00:00
Archit Taneja
b923d40dd4 ARM: OMAP2PLUS: DSS: Ensure DSS works correctly if display is enabled in bootloader
Resetting DISPC when a DISPC output is enabled causes the DSS to go into an
inconsistent state. Thus if the bootloader has enabled a display, the hwmod code
cannot reset the DISPC module just like that, but the outputs need to be
disabled first.

Add function dispc_disable_outputs() which disables all active overlay manager
and ensure all frame transfers are completed.

Modify omap_dss_reset() to call this function and clear DSS_CONTROL,
DSS_SDI_CONTROL and DSS_PLL_CONTROL so that DSS is in a clean state when the
DSS2 driver starts.

This resolves the hang issue(caused by a L3 error during boot) seen on the
beagle board C3, which has a factory bootloader that enables display. The issue
is resolved with this patch.

Thanks to Tomi and Sricharan for some additional testing.

Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: R, Sricharan <r.sricharan@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
[paul@pwsan.com: restructured code, removed omap_{read,write}l(), removed
 cpu_is_omap*() calls and converted to dev_attr]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:46 -07:00
Tomi Valkeinen
13662dc5b1 ARM: OMAP: HWMOD: Unify DSS resets for OMAPs
This patch adds a custom DSS reset function used on OMAPs from OMAP2
forward.

The function doesn't actually do a reset, it only waits for the reset to
complete. The reason for this is that on OMAP4 there is no possibility
to do a SW reset, and on OMAP2/3 doing a SW reset for dss_core resets
all the other DSS modules also, thus breaking the HWMOD model where
every DSS module is handled independently.

This fixes the problem with DSS reset on OMAP4, caused by the fact that
because there's no SW reset for dss_core on OMAP4, the HWMOD framework
doesn't try to reset dss_core and thus the DSS clocks were never enabled
at the same time. This causes causes the HWMOD reset to fail for
dss_dispc and dss_rfbi.

The common reset function will also allow us to fix another problem in
the future: before doing a reset we need to disable DSS outputs, which
are in some cases enabled by the bootloader, as otherwise DSS HW seems
to get more or less stuck, requiring a power reset to recover.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
[paul@pwsan.com: modified to build arch/arm/mach-omap2/display.o
 unconditionally to avoid an error when !CONFIG_OMAP2_DSS]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:13 -07:00
Tomi Valkeinen
3ce32676bb ARM: OMAP2/3: HWMOD: Add SYSS_HAS_RESET_STATUS for dss
OMAP2/3 dss_core has a reset status flag in sysstatus register. Add
SYSS_HAS_RESET_STATUS flag to HWMOD data so it can be used.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:12 -07:00
Tomi Valkeinen
4d0698d98f ARM: OMAP4: HWMOD: fix DSS clock data
The OMAP4 HWMOD data currently contains errors with DSS clocks:

dss_hdmi and dss_venc have their main_clks wrong. The clocks should be
dss_48mhz_clk and dss_tv_clk, respectively.

These problems were temporarily fixed with the DSS patches
9ede365aa6 ("HACK: OMAP: DSS2: clk hack
for OMAP2/3"), and df5d3ed23c ("OMAP:
DSS2: HDMI: fix hdmi clock name"), which can be reverted after this
patch.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:12 -07:00
Tomi Valkeinen
37ad085527 ARM: OMAP4: HWMOD: Add HWMOD_CONTROL_OPT_CLKS_IN_RESET for dss_core
DSS needs all DSS clocks to be enabled to be able to finish reset
properly. Before v3.1-rc1 the omapdss driver was managing clocks and
resets correctly. However, when omapdss started using runtime PM at
v3.1-rc1, the responsibility for the reset moved to HWMOD framework.

HWMOD framework does not currently enable all the DSS clocks when
resetting the DSS hardware. This causes the HWMOD frameworks boot-time
reset to fail, possibly leaving the DSS hardware in undefined state.

This patch sets HWMOD_CONTROL_OPT_CLKS_IN_RESET for dss_core. The flag
is actually not used on OMAP4, because dss_core hardware does not have
soft-reset functionality and thus the HWMOD framework never resets nor
waits for the reset to finish.

However, while the flag is not strictly needed currently, I think it
represents the HW correctly: all the DSS clocks should be enabled after
power-on to allow DSS hardware to finish its reset.

A custom reset function will be added in the following patches which
manages this correctly for OMAP4.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:11 -07:00
Tomi Valkeinen
4247878efc ARM: OMAP4: HWMOD: remove extra clocks
Remove the dss_dss_clk from dss_core's opt-clocks. dss_dss_clk already
defined as the dss main_clk, and thus is not needed as an opt-clock.

Remove opt-clocks for dss_dispc, as dispc only uses the main_clk.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:11 -07:00
Tomi Valkeinen
6c3d7e34d6 ARM: OMAP3: HWMOD: fix DSS clock data
The OMAP3 HWMOD data currently contains these errors with DSS clocks:

- dss_rfbi is missing ick opt-clock, which is needed for RFBI to
  calculate timings

- dss_dsi is missing ick and sys_clk

- dss_venc is missing dss_96m_fck opt-clock, which is required on
  OMAP3430

- dss_venc's interface and main clocks are wrong, causing VENC to fail
  to start

These problems were temporarily fixed with a DSS patch
9ede365aa6 ("HACK: OMAP: DSS2: clk hack
for OMAP2/3"), which can be reverted after this patch (and the similar
patches for other OMAPs).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:10 -07:00
Tomi Valkeinen
8c3105ca1a ARM: OMAP3: HWMOD: Fix DSS reset
DSS needs all DSS clocks to be enabled to be able to finish reset
properly. Before v3.1-rc1 the omapdss driver was managing clocks and
resets correctly. However, when omapdss started using runtime PM at
v3.1-rc1, the responsibility for the reset moved to HWMOD framework.

HWMOD framework does not currently enable all the DSS clocks when
resetting the DSS hardware. This hasn't caused any problems so far, but
we may just have been lucky.

dss_core's opt-clocks is also missing dss_96m_fck, which is a DSS clock
present only on OMAP3430, and thus required on OMAP3430 to finish the
reset.

This patch sets HWMOD_CONTROL_OPT_CLKS_IN_RESET and adds the dss_96m_fck
opt-clock for dss_core in OMAP3 HWMOD data, fixing the issue.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
[paul@pwsan.com: merged duplicate .flags fields]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:10 -07:00
Tomi Valkeinen
b8ac10d8b7 ARM: OMAP2xxx: HWMOD: fix DSS clock data
The OMAP2xxx HWMOD data currently contains two errors with DSS clocks:

- dss_rfbi is missing ick opt-clock, which is needed for RFBI to
  calculate timings

- dss_venc's interface and main clocks are wrong, causing VENC to fail
  to start

These problems were temporarily fixed with a DSS patch
9ede365aa6 ("HACK: OMAP: DSS2: clk hack
for OMAP2/3"), which can be reverted after this patch (and the similar
patches for other OMAPs).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:09 -07:00
Tomi Valkeinen
1258ea596f ARM: OMAP2xxx: HWMOD: Fix DSS reset
DSS needs all DSS clocks to be enabled to be able to finish reset
properly. Before v3.1-rc1 the omapdss driver was managing clocks and
resets correctly. However, when omapdss started using runtime PM at
v3.1-rc1, the responsibility for the reset moved to HWMOD framework.

HWMOD framework does not currently enable all the DSS clocks when
resetting the DSS hardware. This hasn't caused any problems so far, but
we may just have been lucky.

This patch sets HWMOD_CONTROL_OPT_CLKS_IN_RESET for dss_core in OMAP2xxx
HWMOD data, fixing the issue.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
[paul@pwsan.com: merged duplicate .flags fields]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-11-08 03:16:09 -07:00
Eric Anholt
9ca1d10d74 drm/i915: Turn on another required clock gating bit on gen6.
Unlike the previous one, I don't have known testcases it fixes.  I'd
rather not go through the same debug cycle on whatever testcases those
might be.

Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: stable@kernel.org
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-07 19:29:36 -08:00
Eric Anholt
406478dc91 drm/i915: Turn on a required 3D clock gating bit on Sandybridge.
Fixes rendering failures in Unigine Tropics and Sanctuary and the mesa
"fire" demo.

Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: stable@kernel.org
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-07 19:25:15 -08:00
Kevin Hilman
5698eb4eda ARM: OMAP3: CPUidle: include <linux/export.h>
The CPUidle use THIS_MODULE, so needs <linux/export.h>

Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-11-07 16:11:20 -08:00
Trond Myklebust
a6f498a891 NFS: Fix a regression in the referral code
Fix a regression that was introduced by commit
0c2e53f11a (NFS: Remove the unused
"lookupfh()" version of nfs4_proc_lookup()).

In the case where the lookup gets an NFS4ERR_MOVED, we want to return
the result of nfs4_get_referral(). Instead, that value is getting
clobbered by the call to nfs4_handle_exception()...

Reported-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Tested-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-11-07 16:20:00 -05:00
Andrzej Kaczmarek
f3f668b0ef Bluetooth: Use miliseconds for L2CAP channel timeouts
Timers set by __set_chan_timer() should use miliseconds instead of
jiffies. Commit 942ecc9c46 updated
l2cap_set_timer() so it expects timeout to be specified in msecs
instead of jiffies. This makes timeouts unreliable when CONFIG_HZ
is not set to 1000.

Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-11-07 17:19:04 -02:00
Russell King
abf015f046 Revert "ARM: 7098/1: kdump: copy kernel relocation code at the kexec prepare stage"
This reverts commit 2b034922af.

Will Deacon reports:

This is causing kexec to fail.

The symptoms are that the .init.text section is not loaded as part of the
new kernel image, so when we try to do the SMP/UP fixups we hit a whole sea
of poison left there by the previous kernel.

So my guess is that machine_kexec_prepare *is* too early for preparing the
reboot_code_buffer and, unless anybody has a good reason not to, I'd like to
revert the patch causing these problems.

Reported-by: Will Deacon <will.deacon@arm.com>
2011-11-07 19:04:36 +00:00
Arek Lichwa
4dff523a91 Bluetooth: Revert: Fix L2CAP connection establishment
This reverts commit 330605423c.
The commit introduces regression when two 2.1 devices attempt
establish rfcomm channel. Such connection is refused since there's
a security block issue on l2cap. It means the link is unencrypted.

2011-09-16 18:08:46.567616 < ACL data: handle 1 flags 0x00 dlen 24
    0000: 14 00 40 00 06 00 02 00  0f 35 03 19 12 00 ff ff
..@......5....˙˙
    0010: 35 05 0a 00 00 ff ff 00                           5....˙˙.
2011-09-16 18:08:46.572377 > HCI Event: Number of Completed Packets
(0x13) plen 5
    handle 1 packets 1
2011-09-16 18:08:46.577931 > ACL data: handle 1 flags 0x02 dlen 88
    L2CAP(d): cid 0x0040 len 84 [psm 0]
      0000: 07 00 02 00 4f 00 4c 35  4a 35 48 09 00 00 0a 00
....O.L5J5H.....
      0010: 01 00 00 09 00 01 35 03  19 12 00 09 00 05 35 03
......5.......5.
      0020: 19 10 02 09 00 09 35 08  35 06 19 12 00 09 01 02
......5.5.......
      0030: 09 02 00 09 01 02 09 02  01 09 00 0a 09 02 02 09
................
      0040: 00 00 09 02 03 09 00 00  09 02 04 28 01 09 02 05
...........(....
      0050: 09 00 02 00                                       ....
2011-09-16 18:08:46.626057 < HCI Command: Authentication Requested
(0x01|0x0011) plen 2
    handle 1
2011-09-16 18:08:46.627614 > HCI Event: Command Status (0x0f) plen 4
    Authentication Requested (0x01|0x0011) status 0x00 ncmd 1
2011-09-16 18:08:46.627675 > HCI Event: Link Key Request (0x17) plen 6
    bdaddr 00:00:F2:6A:29:69
2011-09-16 18:08:46.634999 < HCI Command: Link Key Request Reply
(0x01|0x000b) plen 22
    bdaddr 00:00:F2:6A:29:69 key 58CD393179FC902E5E8F512A855EE532
2011-09-16 18:08:46.683278 > HCI Event: Command Complete (0x0e) plen 10
    Link Key Request Reply (0x01|0x000b) ncmd 1
    status 0x00 bdaddr 00:00:F2:6A:29:69
2011-09-16 18:08:46.764729 > HCI Event: Auth Complete (0x06) plen 3
    status 0x00 handle 1
2011-09-16 18:08:46.764821 < ACL data: handle 1 flags 0x00 dlen 12
    0000: 08 00 01 00 02 05 04 00  03 00 41 00              ..........A.
2011-09-16 18:08:46.764851 > HCI Event: Command Status (0x0f) plen 4
    Unknown (0x00|0x0000) status 0x00 ncmd 2
2011-09-16 18:08:46.768117 > HCI Event: Number of Completed Packets
(0x13) plen 5
    handle 1 packets 1
2011-09-16 18:08:46.770894 > ACL data: handle 1 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x0000 scid 0x0041 result 3 status 0
      Connection refused - security block
2011-09-16 18:08:49.000691 < ACL data: handle 1 flags 0x00 dlen 12
    0000: 08 00 01 00 06 06 04 00  40 00 40 00              ........@.@.
2011-09-16 18:08:49.015675 > HCI Event: Number of Completed Packets
(0x13) plen 5
    handle 1 packets 1
2011-09-16 18:08:49.016927 > ACL data: handle 1 flags 0x02 dlen 12
    L2CAP(s): Disconn rsp: dcid 0x0040 scid 0x0040
2011-09-16 18:08:51.009480 < HCI Command: Disconnect (0x01|0x0006) plen
3
    handle 1 reason 0x13
    Reason: Remote User Terminated Connection
2011-09-16 18:08:51.011525 > HCI Event: Command Status (0x0f) plen 4
    Disconnect (0x01|0x0006) status 0x00 ncmd 1
2011-09-16 18:08:51.123494 > HCI Event: Disconn Complete (0x05) plen 4
    status 0x00 handle 1 reason 0x16
    Reason: Connection Terminated by Local Host

Signed-off-by: Arek Lichwa <arkadiusz.lichwa@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-11-07 16:46:05 -02:00
Janusz.Dziedzic@tieto.com
24b9c373ab mac80211: uAPSD - fix IEEE80211_FCTL_MOREDATA bit setting
Set IEEE80211_FCTL_MOREDATA bit also in case we have buffered
frames (more than one) only for one AC.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:15 -05:00
Jesper Juhl
db652e4b36 net, wireless, mwifiex: Fix mem leak in mwifiex_update_curr_bss_params()
If kmemdup() fails we leak the memory allocated to bss_desc.
This patch fixes the leak.
I also removed the pointless default assignment of 'NULL' to 'bss_desc'
while I was there anyway.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:15 -05:00
Johannes Berg
3b6ef6334f cfg80211: fix cmp_ies
When comparing two items by IE, the sort order
wasn't stable, which could lead to issues in the
rbtree. Make it stable by making a missing IE
sort before a present IE.

Also sort by length first if it differs and then
by contents.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:14 -05:00
Johannes Berg
133a3ff2c9 cfg80211: allow setting TXQ parameters only in AP mode
In other modes the parameters should not be set.
Right now, mac80211 will set them, even if the
user asked for setting them on VLANs which the
driver doesn't know about, causing all kinds of
trouble.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:14 -05:00
Johannes Berg
6c7394197a nl80211: fix HT capability attribute validation
Since the NL80211_ATTR_HT_CAPABILITY attribute is
used as a struct, it needs a minimum, not maximum
length. Enforce that properly. Not doing so could
potentially lead to reading after the buffer.

Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:13 -05:00
Eliad Peller
3432f92337 mac80211: use min rate as basic rate for buggy APs
Some buggy APs (and even P2P_GO) don't advertise their
basic rates in the association response.

In such case, use the min supported rate as the
basic rate.

Reported-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:13 -05:00
Arend van Spriel
ae8e46723f brcm80211: smac: eliminate a null pointer dereference in dma.c
Though it's unlikely, di may be null, so we can't dereference
di->dma.dmactrlflags until we've checked it.

Move this de-reference after the check, and adjust the error
message to not require de-referencing di.

This is based upon Julia's original patch:
<1319846297-2985-2-git-send-email-julia@diku.dk>

Reported-by: Julia Lawall <julia@diku.dk>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:13 -05:00
Rafał Miłecki
73d51f38c7 b43: HT-PHY: report signal to mac80211
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:12 -05:00
Rafał Miłecki
694718d8ad b43: fill ctl1 word on all newer PHYs, fix PHY errors
This fixes PHY transmission errors reported on some LP-PHY and HT-PHY
cards. For LP-PHY they were quite rare and not really noticable. On
HT-PHY they were critical, OFDM rates were not available at all.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-07 13:19:12 -05:00
Yinghai Lu
fdbd3ce9ef PCI: pciehp: Retrieve link speed after link is trained
During hot plug, board_added will call pciehp_power_on_slot().
But link speed is updated in pciehp_power_on_slot().

We should not update link speed there, because that is too early.

So move the link speed update to pciehp_check_link_status() after making
sure the link has been trained.

-v2: fix compile warning that Kenji found.

Signed-off-by: Yinghai Lu <yinghai.lu@oracle.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Tested-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-11-07 08:07:34 -08:00
Namjae Jeon
3c1fcb2c24 ext4: add blk_finish_plug in error case of writepages.
blk_finish_plug is needed in error case of writepages.

Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-11-07 11:01:13 -05:00
Richard Weinberger
2397256d62 ext4: Remove kernel_lock annotations
The BKL is gone, these annotations are useless.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-11-07 10:50:09 -05:00
Theodore Ts'o
eb513689c9 ext4: ignore journalled data options on remount if fs has no journal
This avoids a confusing failure in the init scripts when the
/etc/fstab has data=writeback or data=journal but the file system does
not have a journal.  So check for this case explicitly, and warn the
user that we are ignoring the (pointless, since they have no journal)
data=* mount option.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-11-07 10:47:42 -05:00
Sage Weil
15a2015fbc ceph: fix iput race when queueing inode work
If we queue a work item that calls iput(), make sure we ihold() before
attempting to queue work. Otherwise our queued work might miraculously run
before we notice the queue_work() succeeded and call ihold(), allowing the
inode to be destroyed.

That is, instead of

	if (queue_work(...))
		ihold();

we need to do

	ihold();
	if (!queue_work(...))
		iput();

Reported-by: Amon Ott <a.ott@m-privacy.de>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-11-05 22:06:31 -07:00
Tomas Miljenović
b42c909743 Input: i8042 - add HP Pavilion dv4s to 'notimeout' and 'nomux' blacklists
Touchpad input doesn't work with newer HP Pavilion dv4 laptops due to bad i8042
timeout data.  Booting with i8042.notimeout and i8042.nomux successfully works
around the problem.

This patch adds the devices to the i8042 notimeout and nomux blacklists.

Signed-off-by: Tomas Miljenovic <TomasM@tomasm.tk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-11-05 00:03:21 -07:00
Jeff Layton
0486958f57 nfs: move nfs_file_operations declaration to bottom of file.c (try #2)
...a remove a set of forward declarations.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-11-04 16:39:11 -04:00
Jeff Layton
1788ea6e3b nfs: when attempting to open a directory, fall back on normal lookup (try #5)
commit d953126 changed how nfs_atomic_lookup handles an -EISDIR return
from an OPEN call. Prior to that patch, that caused the client to fall
back to doing a normal lookup. When that patch went in, the code began
returning that error to userspace. The d_revalidate codepath however
never had the corresponding change, so it was still possible to end up
with a NULL ctx->state pointer after that.

That patch caused a regression. When we attempt to open a directory that
does not have a cached dentry, that open now errors out with EISDIR. If
you attempt the same open with a cached dentry, it will succeed.

Fix this by reverting the change in nfs_atomic_lookup and allowing
attempts to open directories to fall back to a normal lookup

Also, add a NFSv4-specific f_ops->open routine that just returns
-ENOTDIR. This should never be called if things are working properly,
but if it ever is, then the dprintk may help in debugging.

To facilitate this, a new file_operations field is also added to the
nfs_rpc_ops struct.

Cc: stable@kernel.org
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-11-04 16:39:04 -04:00
Don Zickus
79c3dd8150 usb, xhci: Clear warm reset change event during init
I noticed on my Panther Point system that I wasn't getting hotplug events
for my usb3.0 disk on a usb3 port.  I tracked it down to the fact that the
system had the warm reset change bit still set.  This seemed to block future
events from being received, including a hotplug event.

Clearing this bit during initialization allowed the hotplug event to be
received and the disk to be recognized correctly.

This patch should be backported to kernels as old as 2.6.39.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
2011-11-04 12:34:40 -07:00
Sarah Sharp
d31c285b3a xhci: Set slot and ep0 flags for address command.
Matt's AsMedia xHCI host controller was responding with a Context Error
to an address device command after a configured device reset.  Some
sequence of events leads both the slot and endpoint zero add flags
cleared to zero, which the AsMedia host doesn't like:

[  223.701839] xhci_hcd 0000:03:00.0: Slot ID 1 Input Context:
[  223.701841] xhci_hcd 0000:03:00.0: @ffff880137b25000 (virt) @ffffc000 (dma) 0x000000 - drop flags
[  223.701843] xhci_hcd 0000:03:00.0: @ffff880137b25004 (virt) @ffffc004 (dma) 0x000000 - add flags
[  223.701846] xhci_hcd 0000:03:00.0: @ffff880137b25008 (virt) @ffffc008 (dma) 0x000000 - rsvd2[0]
[  223.701848] xhci_hcd 0000:03:00.0: @ffff880137b2500c (virt) @ffffc00c (dma) 0x000000 - rsvd2[1]
[  223.701850] xhci_hcd 0000:03:00.0: @ffff880137b25010 (virt) @ffffc010 (dma) 0x000000 - rsvd2[2]
[  223.701852] xhci_hcd 0000:03:00.0: @ffff880137b25014 (virt) @ffffc014 (dma) 0x000000 - rsvd2[3]
[  223.701854] xhci_hcd 0000:03:00.0: @ffff880137b25018 (virt) @ffffc018 (dma) 0x000000 - rsvd2[4]
[  223.701857] xhci_hcd 0000:03:00.0: @ffff880137b2501c (virt) @ffffc01c (dma) 0x000000 - rsvd2[5]
[  223.701858] xhci_hcd 0000:03:00.0: Slot Context:
[  223.701860] xhci_hcd 0000:03:00.0: @ffff880137b25020 (virt) @ffffc020 (dma) 0x8400000 - dev_info
[  223.701862] xhci_hcd 0000:03:00.0: @ffff880137b25024 (virt) @ffffc024 (dma) 0x010000 - dev_info2
[  223.701864] xhci_hcd 0000:03:00.0: @ffff880137b25028 (virt) @ffffc028 (dma) 0x000000 - tt_info
[  223.701866] xhci_hcd 0000:03:00.0: @ffff880137b2502c (virt) @ffffc02c (dma) 0x000000 - dev_state
[  223.701869] xhci_hcd 0000:03:00.0: @ffff880137b25030 (virt) @ffffc030 (dma) 0x000000 - rsvd[0]
[  223.701871] xhci_hcd 0000:03:00.0: @ffff880137b25034 (virt) @ffffc034 (dma) 0x000000 - rsvd[1]
[  223.701873] xhci_hcd 0000:03:00.0: @ffff880137b25038 (virt) @ffffc038 (dma) 0x000000 - rsvd[2]
[  223.701875] xhci_hcd 0000:03:00.0: @ffff880137b2503c (virt) @ffffc03c (dma) 0x000000 - rsvd[3]
[  223.701877] xhci_hcd 0000:03:00.0: Endpoint 00 Context:
[  223.701879] xhci_hcd 0000:03:00.0: @ffff880137b25040 (virt) @ffffc040 (dma) 0x000000 - ep_info
[  223.701881] xhci_hcd 0000:03:00.0: @ffff880137b25044 (virt) @ffffc044 (dma) 0x2000026 - ep_info2
[  223.701883] xhci_hcd 0000:03:00.0: @ffff880137b25048 (virt) @ffffc048 (dma) 0xffffe8e0 - deq
[  223.701885] xhci_hcd 0000:03:00.0: @ffff880137b25050 (virt) @ffffc050 (dma) 0x000000 - tx_info
[  223.701887] xhci_hcd 0000:03:00.0: @ffff880137b25054 (virt) @ffffc054 (dma) 0x000000 - rsvd[0]
[  223.701889] xhci_hcd 0000:03:00.0: @ffff880137b25058 (virt) @ffffc058 (dma) 0x000000 - rsvd[1]
[  223.701892] xhci_hcd 0000:03:00.0: @ffff880137b2505c (virt) @ffffc05c (dma) 0x000000 - rsvd[2]
...
[  223.701927] xhci_hcd 0000:03:00.0: // Ding dong!
[  223.701992] xhci_hcd 0000:03:00.0: Setup ERROR: address device command for slot 1.

The xHCI spec says that both flags must be set to one for the Address
Device command.  When the device is first enumerated,
xhci_setup_addressable_virt_dev() does set those flags.  However, when
the device is addressed after it has been reset in the configured state,
xhci_setup_addressable_virt_dev() is not called, and
xhci_copy_ep0_dequeue_into_input_ctx() is called instead.  That function
relies on the flags being set up by previous commands, which apparently
isn't a good assumption.

Move the setting of the flags into the common parent function.

This should be queued for stable kernels as old as 2.6.35, since that
was the first introduction of xhci_copy_ep0_dequeue_into_input_ctx.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Matt <mdm@iinet.net.au>
Cc: stable@vger.kernel.org
2011-11-04 12:33:25 -07:00
Jesse Barnes
680da876f4 drm/i915: enable cacheable objects on Ivybridge
IVB supports these bits as well.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-03 16:17:57 -07:00
Shawn Guo
a9866a0975 MAINTAINERS: add ARM/FREESCALE MXS entry
As suggested by Pengutronix, they want to get Sascha relieved from
the burden of maintaining MXS sub-architecture.  Since I brought the
most of MXS core code to mainline (with the great help from
Pengutronix people, thanks!), I would like to step up for maintaining
MXS.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-11-04 05:55:37 +08:00
Daniel Vetter
4b9de737fa drm/i915: add constants to size fence arrays and fields
In preparation of to support 32 fences on Ivybdrigde.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-03 09:20:37 -07:00
Daniel Vetter
775d17b6ca drm/i915: Ivybridge still has fences!
So don't forget to restore them on resume and dump them into
the error state.

Cc: stable@kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-03 09:20:00 -07:00
Ben Widawsky
616fdb5afb drm/i915: forcewake warning fixes in debugfs
Some more unsafe debugfs access are fixed with this patch. I tested all reads,
but didn't thoroughly test the writes.

Cc: "Nicolas Kalkhof" <nkalkhof@web.de>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-03 09:19:14 -07:00
Edward Donovan
c75d720fca genirq: Fix irqfixup, irqpoll regression
commit d05c65fff0 ("genirq: spurious: Run only one poller at a time")
introduced a regression, leaving the boot options 'irqfixup' and
'irqpoll' non-functional. The patch placed tests in each function, to
exit if the function is already running. The test in 'misrouted_irq'
exited when it should have proceeded, effectively disabling
'misrouted_irq' and 'poll_spurious_irqs'.

The check for an already running poller needs to be "!= 1" not "== 1"
as "1" is the value when the first poller starts running.

Signed-off-by: Edward Donovan <edward.donovan@numble.net>
Cc: maciej.rutecki@gmail.com
Link: http://lkml.kernel.org/r/1320175784-6745-1-git-send-email-edward.donovan@numble.net
Cc: stable@vger.kernel.org # >= 2.6.39
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-11-03 13:12:39 +01:00
Don Zickus
f43d623164 usb, xhci: fix lockdep warning on endpoint timeout
While debugging a usb3 problem, I stumbled upon this lockdep warning.

Oct 18 21:41:17 dhcp47-74 kernel: =================================
Oct 18 21:41:17 dhcp47-74 kernel: [ INFO: inconsistent lock state ]
Oct 18 21:41:17 dhcp47-74 kernel: 3.1.0-rc4nmi+ #456
Oct 18 21:41:17 dhcp47-74 kernel: ---------------------------------
Oct 18 21:41:17 dhcp47-74 kernel: inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
Oct 18 21:41:17 dhcp47-74 kernel: swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
Oct 18 21:41:17 dhcp47-74 kernel: (&(&xhci->lock)->rlock){?.-...}, at: [<ffffffffa0228990>] xhci_stop_endpoint_command_watchdog+0x30/0x340 [xhci_hcd]
Oct 18 21:41:17 dhcp47-74 kernel: {IN-HARDIRQ-W} state was registered at:
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8109a941>] __lock_acquire+0x781/0x1660
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8109bed7>] lock_acquire+0x97/0x170
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff81501b46>] _raw_spin_lock+0x46/0x80
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffffa02299fa>] xhci_irq+0x3a/0x1960 [xhci_hcd]
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffffa022b351>] xhci_msi_irq+0x31/0x40 [xhci_hcd]
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff810d2305>] handle_irq_event_percpu+0x85/0x320
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff810d25e8>] handle_irq_event+0x48/0x70
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff810d537d>] handle_edge_irq+0x6d/0x130
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff810048c9>] handle_irq+0x49/0xa0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8150d56d>] do_IRQ+0x5d/0xe0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff815029b0>] ret_from_intr+0x0/0x13
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff81388aca>] usb_set_device_state+0x8a/0x180
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8138f038>] usb_add_hcd+0x2b8/0x730
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffffa022ed7e>] xhci_pci_probe+0x9e/0xd4 [xhci_hcd]
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8127915f>] local_pci_probe+0x5f/0xd0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8127a569>] pci_device_probe+0x119/0x120
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff81334473>] driver_probe_device+0xa3/0x2c0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8133473b>] __driver_attach+0xab/0xb0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8133373c>] bus_for_each_dev+0x6c/0xa0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff813341fe>] driver_attach+0x1e/0x20
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff81333b88>] bus_add_driver+0x1f8/0x2b0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff81334df6>] driver_register+0x76/0x140
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8127a7c6>] __pci_register_driver+0x66/0xe0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffffa013c04a>] snd_timer_find+0x4a/0x70 [snd_timer]
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffffa013c00e>] snd_timer_find+0xe/0x70 [snd_timer]
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff810001d3>] do_one_initcall+0x43/0x180
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff810a9ed2>] sys_init_module+0x92/0x1f0
Oct 18 21:41:17 dhcp47-74 kernel:  [<ffffffff8150ab6b>] system_call_fastpath+0x16/0x1b
Oct 18 21:41:17 dhcp47-74 kernel: irq event stamp: 631984
Oct 18 21:41:17 dhcp47-74 kernel: hardirqs last  enabled at (631984): [<ffffffff81502720>] _raw_spin_unlock_irq+0x30/0x50
Oct 18 21:41:17 dhcp47-74 kernel: hardirqs last disabled at (631983): [<ffffffff81501c49>] _raw_spin_lock_irq+0x19/0x90
Oct 18 21:41:17 dhcp47-74 kernel: softirqs last  enabled at (631980): [<ffffffff8105ff63>] _local_bh_enable+0x13/0x20
Oct 18 21:41:17 dhcp47-74 kernel: softirqs last disabled at (631981): [<ffffffff8150ce6c>] call_softirq+0x1c/0x30
Oct 18 21:41:17 dhcp47-74 kernel:
Oct 18 21:41:17 dhcp47-74 kernel: other info that might help us debug this:
Oct 18 21:41:17 dhcp47-74 kernel: Possible unsafe locking scenario:
Oct 18 21:41:17 dhcp47-74 kernel:
Oct 18 21:41:17 dhcp47-74 kernel:       CPU0
Oct 18 21:41:17 dhcp47-74 kernel:       ----
Oct 18 21:41:17 dhcp47-74 kernel:  lock(&(&xhci->lock)->rlock);
Oct 18 21:41:17 dhcp47-74 kernel:  <Interrupt>
Oct 18 21:41:17 dhcp47-74 kernel:    lock(&(&xhci->lock)->rlock);
Oct 18 21:41:17 dhcp47-74 kernel:
Oct 18 21:41:17 dhcp47-74 kernel: *** DEADLOCK ***
Oct 18 21:41:17 dhcp47-74 kernel:
Oct 18 21:41:17 dhcp47-74 kernel: 1 lock held by swapper/0:
Oct 18 21:41:17 dhcp47-74 kernel: #0:  (&ep->stop_cmd_timer){+.-...}, at: [<ffffffff8106abf2>] run_timer_softirq+0x162/0x570
Oct 18 21:41:17 dhcp47-74 kernel:
Oct 18 21:41:17 dhcp47-74 kernel: stack backtrace:
Oct 18 21:41:17 dhcp47-74 kernel: Pid: 0, comm: swapper Tainted: G        W   3.1.0-rc4nmi+ #456
Oct 18 21:41:17 dhcp47-74 kernel: Call Trace:
Oct 18 21:41:17 dhcp47-74 kernel: <IRQ>  [<ffffffff81098ed7>] print_usage_bug+0x227/0x270
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff810999c6>] mark_lock+0x346/0x410
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8109a7de>] __lock_acquire+0x61e/0x1660
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff81099893>] ? mark_lock+0x213/0x410
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8109bed7>] lock_acquire+0x97/0x170
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffffa0228990>] ? xhci_stop_endpoint_command_watchdog+0x30/0x340 [xhci_hcd]
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff81501b46>] _raw_spin_lock+0x46/0x80
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffffa0228990>] ? xhci_stop_endpoint_command_watchdog+0x30/0x340 [xhci_hcd]
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffffa0228990>] xhci_stop_endpoint_command_watchdog+0x30/0x340 [xhci_hcd]
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8106abf2>] ? run_timer_softirq+0x162/0x570
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8106ac9d>] run_timer_softirq+0x20d/0x570
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8106abf2>] ? run_timer_softirq+0x162/0x570
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffffa0228960>] ? xhci_queue_isoc_tx_prepare+0x8e0/0x8e0 [xhci_hcd]
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff810604d2>] __do_softirq+0xf2/0x3f0
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff81020edd>] ? lapic_next_event+0x1d/0x30
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff81090d4e>] ? clockevents_program_event+0x5e/0x90
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8150ce6c>] call_softirq+0x1c/0x30
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8100484d>] do_softirq+0x8d/0xc0
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8105ff35>] irq_exit+0xe5/0x100
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8150d65e>] smp_apic_timer_interrupt+0x6e/0x99
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff8150b6f0>] apic_timer_interrupt+0x70/0x80
Oct 18 21:41:17 dhcp47-74 kernel: <EOI>  [<ffffffff81095d8d>] ? trace_hardirqs_off+0xd/0x10
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff812ddb76>] ? acpi_idle_enter_bm+0x227/0x25b
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff812ddb71>] ? acpi_idle_enter_bm+0x222/0x25b
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff813eda63>] cpuidle_idle_call+0x103/0x290
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff81002155>] cpu_idle+0xe5/0x160
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff814e7f50>] rest_init+0xe0/0xf0
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff814e7e70>] ? csum_partial_copy_generic+0x170/0x170
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff81df8e23>] start_kernel+0x3fc/0x407
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff81df8321>] x86_64_start_reservations+0x131/0x135
Oct 18 21:41:17 dhcp47-74 kernel: [<ffffffff81df8412>] x86_64_start_kernel+0xed/0xf4
Oct 18 21:41:17 dhcp47-74 kernel: xhci_hcd 0000:00:14.0: xHCI host not responding to stop endpoint command.
Oct 18 21:41:17 dhcp47-74 kernel: xhci_hcd 0000:00:14.0: Assuming host is dying, halting host.
Oct 18 21:41:17 dhcp47-74 kernel: xhci_hcd 0000:00:14.0: HC died; cleaning up
Oct 18 21:41:17 dhcp47-74 kernel: usb 3-4: device descriptor read/8, error -110
Oct 18 21:41:17 dhcp47-74 kernel: usb 3-4: device descriptor read/8, error -22
Oct 18 21:41:17 dhcp47-74 kernel: hub 3-0:1.0: cannot disable port 4 (err = -19)

Basically what is happening is in xhci_stop_endpoint_command_watchdog()
the xhci->lock is grabbed with just spin_lock.  What lockdep deduces is
that if an interrupt occurred while in this function it would deadlock
with xhci_irq because that function also grabs the xhci->lock.

Fixing it is trivial by using spin_lock_irqsave instead.

This should be queued to stable kernels as far back as 2.6.33.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
2011-11-02 13:07:59 -07:00
Eric Anholt
ff56b0bc84 drm/i915: Fix object refcount leak on mmappable size limit error path.
I've been seeing memory leaks on my system in the form of large
(300-400MB) GEM objects created by now-dead processes laying around
clogging up memory.  I usually notice when it gets to about 1.2GB of
them.  Hopefully this clears up the issue, but I just found this bug
by inspection.

Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: stable@kernel.org
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-01 09:15:17 -07:00
Keith Packard
627f7675f0 drm/i915: Use mode_config.mutex in ironlake_panel_vdd_work
Use of the struct_mutex is not correct for locking in mode setting paths.

Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-01 09:14:56 -07:00
Joerg Roedel
c54420d330 PCI: Let PCI_PRI depend on PCI
This avoids the PCI_PRI question in 'make config' when PCI
is not selected.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-10-31 10:23:58 -07:00
Joerg Roedel
466b3ddfbc PCI: Fix compile errors with PCI_ATS and !PCI_IOV
The ats and sroiv members of 'struct pci_dev' are required
for the ATS code already, even without IOV support compiled
in. So depend on ATS here. This is fine with PCI_IOV too
because it selects PCI_ATS. Also the prototypes for ATS
need to be available for PCI_ATS.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-10-31 10:23:57 -07:00
Rafael J. Wysocki
0d52f54e2e PCI / ACPI: Make acpiphp ignore root bridges using PCIe native hotplug
If the kernel has requested control of the PCIe native hotplug
feature for a given root complex, the acpiphp driver should not try
to handle that root complex and it should leave it to pciehp.
Failing to do so causes problems to happen if acpiphp is loaded
before pciehp on such systems.

To address this issue make find_root_bridges() ignore PCIe root
complexes with PCIe native hotplug enabled and make add_bridge()
return error code if PCIe native hotplug is enabled for the given
root port.  This causes acpiphp to refuse to load if PCIe native
hotplug is enabled for all complexes and to refuse binding to
the root complexes with PCIe native hotplug is enabled.

Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-10-31 10:17:43 -07:00
Keith Packard
c5e62bdd73 agp: iommu_gfx_mapped only available if CONFIG_INTEL_IOMMU is set
Kernels with no iommu support cannot ever need the Ironlake
work-around, so never enable it in that case.

Might be better to completely remove the work-around from the kernel
in this case?

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
2011-10-28 13:06:44 -07:00
Dan Carpenter
3fca806cf3 drm/i915: fix if statement (bogus semi-colon)
The semi-colon is a typo here and it makes the if statement
unconditional.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-10-28 10:09:47 -07:00
Adam Jackson
8282049039 drm/i915: intel_choose_pipe_bpp_dither messages should be DRM_DEBUG_KMS
Shouldn't hide these behind _DRIVER, they're all KMS-related.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-10-28 10:01:59 -07:00
Daniel Vetter
80a2901d2a drm/i915: only match on PCI_BASE_CLASS_DISPLAY
... not DISPLAY_VGA, because we ignore the VGA subclass with our
class_mask.

It confused me until Chris Wilson clued me up.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-10-28 10:01:59 -07:00
Daniel Vetter
f74974c763 drm/i915: disable temporal dithering on the internal panel
<ajax> i'm getting tempted to just disable temporal
<mjg59> Approved.
<ajax> apparently it makes the screen look pulse-y which is worse
than the disease.

References: http://lists.freedesktop.org/archives/intel-gfx/2011-October/012545.html
Tested-by: Олег Герман <oleg.german@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-10-28 10:01:58 -07:00
John Stultz
c2bc11113c time: Improve documentation of timekeeeping_adjust()
After getting a number of questions in private emails about the
math around admittedly very complex timekeeping_adjust() and
timekeeping_big_adjust(), I figure the code needs some better
comments.

Hopefully the explanations are clear enough and don't muddy the
water any worse.

Still needs documentation for ntp_error, but I couldn't recall
exactly the full explanation behind the code that's there
(although I do recall once working it out when Roman first
proposed it). Given a bit more time I can probably work it out,
but I don't want to hold back this documentation until then.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Cc: Chen Jie <chenj@lemote.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1319764362-32367-1-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-10-28 08:57:38 +02:00
Bartlomiej Zolnierkiewicz
0ab3d8b321 cy82c693: fix PCI device selection
Wrong PCI device may be selected by cy82c693_set_pio_mode() if modular
IDE host drivers are used and there are additional IDE PCI devices
installed in the system.  Fix it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-13 17:04:50 -04:00
Bartlomiej Zolnierkiewicz
acc8dbe7f4 icside: DMA support fix
Fix problem introduced by commit 5e37bdc ("ide: add struct
ide_dma_ops (take 3)"): d.dma_ops shouldn't be cleared if
we are going to use DMA.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-13 17:04:50 -04:00
Mikulas Patocka
839e7306e5 IDE: Don't powerdown Compaq Triflex IDE device on suspend
Don't powerdown Compaq Triflex IDE device on suspend

This fixes APM suspend on Compaq Armada 7400.
APM BIOS doesn't suspend if IDE is powered down when suspending.
The Triflex controller is found only on old Compaq boards,
so this patch will hopefully have no side effects.

This patch fixes a suspend regression introduced in
feb22b7f8e ("ide: add proper PCI PM
support (v2)").

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
[bart: add commit's summary in parens]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-13 17:04:49 -04:00
Bartlomiej Zolnierkiewicz
dc9c0beecf piix: ICH7 MWDMA1 errata
Based on libata commit c611bed7.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-11 15:19:43 -04:00
Joel Becker
99b1bb61b2 Merge branch 'mw-3.1-jul25' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-fixes 2011-08-21 21:02:57 -07:00
Jan Kara
c7e25e6e0b ocfs2: Avoid livelock in ocfs2_readpage()
When someone writes to an inode, readers accessing the same inode via
ocfs2_readpage() just busyloop trying to get ip_alloc_sem because
do_generic_file_read() looks up the page again and retries ->readpage()
when previous attempt failed with AOP_TRUNCATED_PAGE. When there are enough
readers, they can occupy all CPUs and in non-preempt kernel the system is
deadlocked because writer holding ip_alloc_sem is never run to release the
semaphore. Fix the problem by making reader block on ip_alloc_sem to break
the busy loop.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-07-28 02:07:19 -07:00
Mark Fasheh
a11f7e63c5 ocfs2: serialize unaligned aio
Fix a corruption that can happen when we have (two or more) outstanding
aio's to an overlapping unaligned region.  Ext4
(e9e3bcecf4) and xfs recently had to fix
similar issues.

In our case what happens is that we can have an outstanding aio on a region
and if a write comes in with some bytes overlapping the original aio we may
decide to read that region into a page before continuing (typically because
of buffered-io fallback).  Since we have no ordering guarantees with the
aio, we can read stale or bad data into the page and then write it back out.

If the i/o is page and block aligned, then we avoid this issue as there
won't be any need to read data from disk.

I took the same approach as Eric in the ext4 patch and introduced some
serialization of unaligned async direct i/o.  I don't expect this to have an
effect on the most common cases of AIO.  Unaligned aio will be slower
though, but that's far more acceptable than data corruption.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-07-28 02:07:16 -07:00
Sunil Mushran
93862d5e1a ocfs2: Implement llseek()
ocfs2 implements its own llseek() to provide the SEEK_HOLE/SEEK_DATA
functionality.

SEEK_HOLE sets the file pointer to the start of either a hole or an unwritten
(preallocated) extent, that is greater than or equal to the supplied offset.

SEEK_DATA sets the file pointer to the start of an allocated extent (not
unwritten) that is greater than or equal to the supplied offset.

If the supplied offset is on a desired region, then the file pointer is set
to it. Offsets greater than or equal to the file size return -ENXIO.

Unwritten (preallocated) extents are considered holes because the file system
treats reads to such regions in the same way as it does to holes.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-25 14:58:15 -07:00
Wengang Wang
5cffff9e29 ocfs2: Fix ocfs2_page_mkwrite()
This patch address two shortcomings in ocfs2_page_mkwrite():
1. Makes the function return better VM_FAULT_* errors.
2. It handles a error that is triggered when a page is dropped from the mapping
due to memory pressure. This patch locks the page to prevent that.

[Patch was cleaned up by Sunil Mushran.]

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:36:54 -07:00
Sunil Mushran
a035bff6b8 ocfs2: Add comment about orphan scanning
Add a comment that explains the reason as to why orphan scan scans all the slots.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:35:54 -07:00
Sunil Mushran
619c200de1 ocfs2: Clean up messages in the fs
Convert useful messages from ML_NOTICE to KERN_NOTICE to improve readability.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:34:54 -07:00
Sunil Mushran
6b27f62fc7 ocfs2/cluster: Cluster up now includes network connections too
The cluster up check only checks to see if the node is heartbeating or not.
If yes it continues assuming that the node is connected to all the nodes. But
if that is not the case, the cluster join aborts with a stack of errors that
are not easy to comprehend.

This patch adds the network connect check upfront and prints the nodes that
the node is not yet connected to, before aborting.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:33:54 -07:00
Sunil Mushran
3ba169ccec ocfs2/cluster: Add new function o2net_fill_node_map()
Patch adds function o2net_fill_node_map() to return the bitmap of nodes that
it is connected to. This bitmap is also accessible by the user via the debugfs
file, /sys/kernel/debug/o2net/connected_nodes.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:32:54 -07:00
Sunil Mushran
bb570a5d9e ocfs2/cluster: Fix output in file elapsed_time_in_ms
The o2hb debugfs file, elapsed_time_in_ms, should return values only after the
timer is armed atleast once.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:31:54 -07:00
Sunil Mushran
a2c0cc1579 ocfs2/dlm: dlmlock_remote() needs to account for remastery
In dlmlock_remote(), we wait for the resource to stop being active before
setting the inprogress flag. Active includes recovery, migration, etc.

The problem here is that if the resource was being recovered or migrated, the
new owner could very well be that node itself (and thus not a remote node).
This problem was observed in Oracle bug#12583620. The error messages observed
were as follows:

dlm_send_remote_lock_request:337 ERROR: Error -40 (ELOOP) when sending message 503 (key 0xd6d8c7) to node 2
dlmlock_remote:271 ERROR: dlm status = DLM_BADARGS
dlmlock:751 ERROR: dlm status = DLM_BADARGS

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:30:54 -07:00
Sunil Mushran
ff0a522e7d ocfs2/dlm: Take inflight reference count for remotely mastered resources too
The inflight reference count, in the lock resource, is taken to pin the resource
in memory. We take it when a new resource is created and release it after a
lock is attached to it. We do this to prevent the resource from getting purged
prematurely.

Earlier this reference count was being taken for locally mastered resources
only. This patch extends the same functionality for remotely mastered ones.

We are doing this because the same premature purging could occur for remotely
mastered resources if the remote node were to die before completion of the
create lock.

Fix for Oracle bug#12405575.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:29:54 -07:00
Sunil Mushran
ed8625c6fb ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery()
dlm_wait_for_node_death() and dlm_wait_for_node_recovery() needed a facelift.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:28:54 -07:00
Sunil Mushran
e9f0b6a623 ocfs2/dlm: Trace insert/remove of resource to/from hash
Add mlog to trace adding and removing the resource from/to the hash table.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:27:54 -07:00
Sunil Mushran
8d400b81cc ocfs2/dlm: Clean up refmap helpers
Patch cleans up helpers that set/clear refmap bits and grab/drop inflight lock
ref counts.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:26:54 -07:00
Sunil Mushran
0afbba1322 ocfs2/dlm: Cleanup up dlm_finish_local_lockres_recovery()
dlm_finish_local_lockres_recovery() needed a facelift.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:25:54 -07:00
Sunil Mushran
394eb3d38a ocfs2: Clean up messages in stack_o2cb.c
o2cb messages needed a facelift.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:24:54 -07:00
Sunil Mushran
8decab3c8d ocfs2/dlm: Clean up messages in o2dlm
o2dlm messages needed a facelift.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:23:54 -07:00
Sunil Mushran
1dfecf810e ocfs2/cluster: Clean up messages in o2net
o2net messages needed a facelift.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:22:54 -07:00
Sunil Mushran
d2eece3766 ocfs2/cluster: Abort heartbeat start on hard-ro devices
Currently if the heartbeat device is hard-ro, the o2hb thread keeps chugging
along and dumping errors along the way. The user needs to manually stop the
heartbeat.

The patch addresses this shortcoming by adding a limit to the number of times
the hb thread will iterate in an unsteady state. If the hb thread does not
ready steady state in that many interation, the start is aborted.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2011-07-24 10:21:54 -07:00
Akinobu Mita
730e663bd8 ocfs2: use proper little-endian bitops
Using __test_and_{set,clear}_bit_le() with ignoring its return value
can be replaced with __{set,clear}_bit_le().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: ocfs2-devel@oss.oracle.com
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-05-31 19:03:45 -07:00
Dan Carpenter
87f0d5c8db ocfs2: null deref on allocation error
The original code had a null derefence in the error handling.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-05-31 19:03:45 -07:00
Dan Carpenter
3d75be7c47 ocfs2: checking the wrong variable in ocfs2_move_extent()
"new_phys_cpos" is always a valid pointer here.
ocfs2_probe_alloc_group() allocates "*new_phys_cpos".

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-05-31 19:03:44 -07:00
Tiger Yang
03efed8a2a ocfs2: Bugfix for hard readonly mount
ocfs2 cannot currently mount a device that is readonly at the media
("hard readonly").  Fix the broken places.
see detail: http://oss.oracle.com/bugzilla/show_bug.cgi?id=1322

[ Description edited -- Joel ]

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Reviewed-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
2011-05-31 19:03:44 -07:00
674 changed files with 6983 additions and 5062 deletions

View File

@@ -206,16 +206,3 @@ Description:
when a discarded area is read the discard_zeroes_data
parameter will be set to one. Otherwise it will be 0 and
the result of reading a discarded area is undefined.
What: /sys/block/<disk>/alias
Date: Aug 2011
Contact: Nao Nishijima <nao.nishijima.xt@hitachi.com>
Description:
A raw device name of a disk does not always point a same disk
each boot-up time. Therefore, users have to use persistent
device names, which udev creates when the kernel finds a disk,
instead of raw device name. However, kernel doesn't show those
persistent names on its messages (e.g. dmesg).
This file can store an alias of the disk and it would be
appeared in kernel messages if it is set. A disk can have an
alias which length is up to 255bytes. Users can use alphabets,
numbers, "-" and "_" in alias name. This file is writeonce.

View File

@@ -520,6 +520,11 @@ Here's a description of the fields of <varname>struct uio_mem</varname>:
</para>
<itemizedlist>
<listitem><para>
<varname>const char *name</varname>: Optional. Set this to help identify
the memory region, it will show up in the corresponding sysfs node.
</para></listitem>
<listitem><para>
<varname>int memtype</varname>: Required if the mapping is used. Set this to
<varname>UIO_MEM_PHYS</varname> if you you have physical memory on your
@@ -553,7 +558,7 @@ instead to remember such an address.
</itemizedlist>
<para>
Please do not touch the <varname>kobj</varname> element of
Please do not touch the <varname>map</varname> element of
<varname>struct uio_mem</varname>! It is used by the UIO framework
to set up sysfs files for this mapping. Simply leave it alone.
</para>

View File

@@ -98,14 +98,12 @@ You must enable "SCSI tape drive support for Smart Array 5xxx" and
"SCSI support" in your kernel configuration to be able to use SCSI
tape drives with your Smart Array 5xxx controller.
Additionally, note that the driver will not engage the SCSI core at init
time. The driver must be directed to dynamically engage the SCSI core via
the /proc filesystem entry which the "block" side of the driver creates as
/proc/driver/cciss/cciss* at runtime. This is because at driver init time,
the SCSI core may not yet be initialized (because the driver is a block
driver) and attempting to register it with the SCSI core in such a case
would cause a hang. This is best done via an initialization script
(typically in /etc/init.d, but could vary depending on distribution).
Additionally, note that the driver will engage the SCSI core at init
time if any tape drives or medium changers are detected. The driver may
also be directed to dynamically engage the SCSI core via the /proc filesystem
entry which the "block" side of the driver creates as
/proc/driver/cciss/cciss* at runtime. This is best done via a script.
For example:
for x in /proc/driver/cciss/cciss[0-9]*

View File

@@ -33,6 +33,7 @@ qcom Qualcomm, Inc.
ramtron Ramtron International
samsung Samsung Semiconductor
schindler Schindler
sil Silicon Image
simtek
sirf SiRF Technology, Inc.
stericsson ST-Ericsson

View File

@@ -63,8 +63,8 @@ IRC network.
Userspace tools for creating and manipulating Btrfs file systems are
available from the git repository at the following location:
http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-progs-unstable.git
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unstable.git
http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-progs.git
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git
These include the following tools:

View File

@@ -1,22 +1,24 @@
The I2C protocol knows about two kinds of device addresses: normal 7 bit
addresses, and an extended set of 10 bit addresses. The sets of addresses
do not intersect: the 7 bit address 0x10 is not the same as the 10 bit
address 0x10 (though a single device could respond to both of them). You
select a 10 bit address by adding an extra byte after the address
byte:
S Addr7 Rd/Wr ....
becomes
S 11110 Addr10 Rd/Wr
S is the start bit, Rd/Wr the read/write bit, and if you count the number
of bits, you will see the there are 8 after the S bit for 7 bit addresses,
and 16 after the S bit for 10 bit addresses.
address 0x10 (though a single device could respond to both of them).
WARNING! The current 10 bit address support is EXPERIMENTAL. There are
several places in the code that will cause SEVERE PROBLEMS with 10 bit
addresses, even though there is some basic handling and hooks. Also,
almost no supported adapter handles the 10 bit addresses correctly.
I2C messages to and from 10-bit address devices have a different format.
See the I2C specification for the details.
As soon as a real 10 bit address device is spotted 'in the wild', we
can and will add proper support. Right now, 10 bit address devices
are defined by the I2C protocol, but we have never seen a single device
which supports them.
The current 10 bit address support is minimal. It should work, however
you can expect some problems along the way:
* Not all bus drivers support 10-bit addresses. Some don't because the
hardware doesn't support them (SMBus doesn't require 10-bit address
support for example), some don't because nobody bothered adding the
code (or it's there but not working properly.) Software implementation
(i2c-algo-bit) is known to work.
* Some optional features do not support 10-bit addresses. This is the
case of automatic detection and instantiation of devices by their,
drivers, for example.
* Many user-space packages (for example i2c-tools) lack support for
10-bit addresses.
Note that 10-bit address devices are still pretty rare, so the limitations
listed above could stay for a long time, maybe even forever if nobody
needs them to be fixed.

View File

@@ -20,7 +20,7 @@ ip_no_pmtu_disc - BOOLEAN
default FALSE
min_pmtu - INTEGER
default 562 - minimum discovered Path MTU
default 552 - minimum discovered Path MTU
route/max_size - INTEGER
Maximum number of routes allowed in the kernel. Increase

View File

@@ -123,9 +123,10 @@ please refer directly to the source code for more information about it.
Subsystem-Level Methods
-----------------------
The core methods to suspend and resume devices reside in struct dev_pm_ops
pointed to by the pm member of struct bus_type, struct device_type and
struct class. They are mostly of interest to the people writing infrastructure
for buses, like PCI or USB, or device type and device class drivers.
pointed to by the ops member of struct dev_pm_domain, or by the pm member of
struct bus_type, struct device_type and struct class. They are mostly of
interest to the people writing infrastructure for platforms and buses, like PCI
or USB, or device type and device class drivers.
Bus drivers implement these methods as appropriate for the hardware and the
drivers using it; PCI works differently from USB, and so on. Not many people
@@ -139,41 +140,57 @@ sequencing in the driver model tree.
/sys/devices/.../power/wakeup files
-----------------------------------
All devices in the driver model have two flags to control handling of wakeup
events (hardware signals that can force the device and/or system out of a low
power state). These flags are initialized by bus or device driver code using
All device objects in the driver model contain fields that control the handling
of system wakeup events (hardware signals that can force the system out of a
sleep state). These fields are initialized by bus or device driver code using
device_set_wakeup_capable() and device_set_wakeup_enable(), defined in
include/linux/pm_wakeup.h.
The "can_wakeup" flag just records whether the device (and its driver) can
The "power.can_wakeup" flag just records whether the device (and its driver) can
physically support wakeup events. The device_set_wakeup_capable() routine
affects this flag. The "should_wakeup" flag controls whether the device should
try to use its wakeup mechanism. device_set_wakeup_enable() affects this flag;
for the most part drivers should not change its value. The initial value of
should_wakeup is supposed to be false for the majority of devices; the major
exceptions are power buttons, keyboards, and Ethernet adapters whose WoL
(wake-on-LAN) feature has been set up with ethtool. It should also default
to true for devices that don't generate wakeup requests on their own but merely
forward wakeup requests from one bus to another (like PCI bridges).
affects this flag. The "power.wakeup" field is a pointer to an object of type
struct wakeup_source used for controlling whether or not the device should use
its system wakeup mechanism and for notifying the PM core of system wakeup
events signaled by the device. This object is only present for wakeup-capable
devices (i.e. devices whose "can_wakeup" flags are set) and is created (or
removed) by device_set_wakeup_capable().
Whether or not a device is capable of issuing wakeup events is a hardware
matter, and the kernel is responsible for keeping track of it. By contrast,
whether or not a wakeup-capable device should issue wakeup events is a policy
decision, and it is managed by user space through a sysfs attribute: the
power/wakeup file. User space can write the strings "enabled" or "disabled" to
set or clear the "should_wakeup" flag, respectively. This file is only present
for wakeup-capable devices (i.e. devices whose "can_wakeup" flags are set)
and is created (or removed) by device_set_wakeup_capable(). Reads from the
file will return the corresponding string.
"power/wakeup" file. User space can write the strings "enabled" or "disabled"
to it to indicate whether or not, respectively, the device is supposed to signal
system wakeup. This file is only present if the "power.wakeup" object exists
for the given device and is created (or removed) along with that object, by
device_set_wakeup_capable(). Reads from the file will return the corresponding
string.
The device_may_wakeup() routine returns true only if both flags are set.
The "power/wakeup" file is supposed to contain the "disabled" string initially
for the majority of devices; the major exceptions are power buttons, keyboards,
and Ethernet adapters whose WoL (wake-on-LAN) feature has been set up with
ethtool. It should also default to "enabled" for devices that don't generate
wakeup requests on their own but merely forward wakeup requests from one bus to
another (like PCI Express ports).
The device_may_wakeup() routine returns true only if the "power.wakeup" object
exists and the corresponding "power/wakeup" file contains the string "enabled".
This information is used by subsystems, like the PCI bus type code, to see
whether or not to enable the devices' wakeup mechanisms. If device wakeup
mechanisms are enabled or disabled directly by drivers, they also should use
device_may_wakeup() to decide what to do during a system sleep transition.
However for runtime power management, wakeup events should be enabled whenever
the device and driver both support them, regardless of the should_wakeup flag.
Device drivers, however, are not supposed to call device_set_wakeup_enable()
directly in any case.
It ought to be noted that system wakeup is conceptually different from "remote
wakeup" used by runtime power management, although it may be supported by the
same physical mechanism. Remote wakeup is a feature allowing devices in
low-power states to trigger specific interrupts to signal conditions in which
they should be put into the full-power state. Those interrupts may or may not
be used to signal system wakeup events, depending on the hardware design. On
some systems it is impossible to trigger them from system sleep states. In any
case, remote wakeup should always be enabled for runtime power management for
all devices and drivers that support it.
/sys/devices/.../power/control files
------------------------------------
@@ -249,20 +266,31 @@ for every device before the next phase begins. Not all busses or classes
support all these callbacks and not all drivers use all the callbacks. The
various phases always run after tasks have been frozen and before they are
unfrozen. Furthermore, the *_noirq phases run at a time when IRQ handlers have
been disabled (except for those marked with the IRQ_WAKEUP flag).
been disabled (except for those marked with the IRQF_NO_SUSPEND flag).
All phases use bus, type, or class callbacks (that is, methods defined in
dev->bus->pm, dev->type->pm, or dev->class->pm). These callbacks are mutually
exclusive, so if the device type provides a struct dev_pm_ops object pointed to
by its pm field (i.e. both dev->type and dev->type->pm are defined), the
callbacks included in that object (i.e. dev->type->pm) will be used. Otherwise,
if the class provides a struct dev_pm_ops object pointed to by its pm field
(i.e. both dev->class and dev->class->pm are defined), the PM core will use the
callbacks from that object (i.e. dev->class->pm). Finally, if the pm fields of
both the device type and class objects are NULL (or those objects do not exist),
the callbacks provided by the bus (that is, the callbacks from dev->bus->pm)
will be used (this allows device types to override callbacks provided by bus
types or classes if necessary).
All phases use PM domain, bus, type, or class callbacks (that is, methods
defined in dev->pm_domain->ops, dev->bus->pm, dev->type->pm, or dev->class->pm).
These callbacks are regarded by the PM core as mutually exclusive. Moreover,
PM domain callbacks always take precedence over bus, type and class callbacks,
while type callbacks take precedence over bus and class callbacks, and class
callbacks take precedence over bus callbacks. To be precise, the following
rules are used to determine which callback to execute in the given phase:
1. If dev->pm_domain is present, the PM core will attempt to execute the
callback included in dev->pm_domain->ops. If that callback is not
present, no action will be carried out for the given device.
2. Otherwise, if both dev->type and dev->type->pm are present, the callback
included in dev->type->pm will be executed.
3. Otherwise, if both dev->class and dev->class->pm are present, the
callback included in dev->class->pm will be executed.
4. Otherwise, if both dev->bus and dev->bus->pm are present, the callback
included in dev->bus->pm will be executed.
This allows PM domains and device types to override callbacks provided by bus
types or device classes if necessary.
These callbacks may in turn invoke device- or driver-specific methods stored in
dev->driver->pm, but they don't have to.
@@ -283,9 +311,8 @@ When the system goes into the standby or memory sleep state, the phases are:
After the prepare callback method returns, no new children may be
registered below the device. The method may also prepare the device or
driver in some way for the upcoming system power transition (for
example, by allocating additional memory required for this purpose), but
it should not put the device into a low-power state.
driver in some way for the upcoming system power transition, but it
should not put the device into a low-power state.
2. The suspend methods should quiesce the device to stop it from performing
I/O. They also may save the device registers and put it into the

View File

@@ -44,25 +44,33 @@ struct dev_pm_ops {
};
The ->runtime_suspend(), ->runtime_resume() and ->runtime_idle() callbacks
are executed by the PM core for either the power domain, or the device type
(if the device power domain's struct dev_pm_ops does not exist), or the class
(if the device power domain's and type's struct dev_pm_ops object does not
exist), or the bus type (if the device power domain's, type's and class'
struct dev_pm_ops objects do not exist) of the given device, so the priority
order of callbacks from high to low is that power domain callbacks, device
type callbacks, class callbacks and bus type callbacks, and the high priority
one will take precedence over low priority one. The bus type, device type and
class callbacks are referred to as subsystem-level callbacks in what follows,
and generally speaking, the power domain callbacks are used for representing
power domains within a SoC.
are executed by the PM core for the device's subsystem that may be either of
the following:
1. PM domain of the device, if the device's PM domain object, dev->pm_domain,
is present.
2. Device type of the device, if both dev->type and dev->type->pm are present.
3. Device class of the device, if both dev->class and dev->class->pm are
present.
4. Bus type of the device, if both dev->bus and dev->bus->pm are present.
The PM core always checks which callback to use in the order given above, so the
priority order of callbacks from high to low is: PM domain, device type, class
and bus type. Moreover, the high-priority one will always take precedence over
a low-priority one. The PM domain, bus type, device type and class callbacks
are referred to as subsystem-level callbacks in what follows.
By default, the callbacks are always invoked in process context with interrupts
enabled. However, subsystems can use the pm_runtime_irq_safe() helper function
to tell the PM core that a device's ->runtime_suspend() and ->runtime_resume()
callbacks should be invoked in atomic context with interrupts disabled.
This implies that these callback routines must not block or sleep, but it also
means that the synchronous helper functions listed at the end of Section 4 can
be used within an interrupt handler or in an atomic context.
to tell the PM core that their ->runtime_suspend(), ->runtime_resume() and
->runtime_idle() callbacks may be invoked in atomic context with interrupts
disabled for a given device. This implies that the callback routines in
question must not block or sleep, but it also means that the synchronous helper
functions listed at the end of Section 4 may be used for that device within an
interrupt handler or generally in an atomic context.
The subsystem-level suspend callback is _entirely_ _responsible_ for handling
the suspend of the device as appropriate, which may, but need not include

View File

@@ -97,15 +97,23 @@
struct serial_rs485 rs485conf;
/* Set RS485 mode: */
/* Enable RS485 mode: */
rs485conf.flags |= SER_RS485_ENABLED;
/* Set logical level for RTS pin equal to 1 when sending: */
rs485conf.flags |= SER_RS485_RTS_ON_SEND;
/* or, set logical level for RTS pin equal to 0 when sending: */
rs485conf.flags &= ~(SER_RS485_RTS_ON_SEND);
/* Set logical level for RTS pin equal to 1 after sending: */
rs485conf.flags |= SER_RS485_RTS_AFTER_SEND;
/* or, set logical level for RTS pin equal to 0 after sending: */
rs485conf.flags &= ~(SER_RS485_RTS_AFTER_SEND);
/* Set rts delay before send, if needed: */
rs485conf.flags |= SER_RS485_RTS_BEFORE_SEND;
rs485conf.delay_rts_before_send = ...;
/* Set rts delay after send, if needed: */
rs485conf.flags |= SER_RS485_RTS_AFTER_SEND;
rs485conf.delay_rts_after_send = ...;
/* Set this flag if you want to receive data even whilst sending data */

View File

@@ -579,7 +579,7 @@ Development Tree
~~~~~~~~~~~~~~~~
The latest development codes for HD-audio are found on sound git tree:
- git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git
- git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
The master branch or for-next branches can be used as the main
development branches in general while the HD-audio specific patches
@@ -594,7 +594,7 @@ is, installed via the usual spells: configure, make and make
install(-modules). See INSTALL in the package. The snapshot tarballs
are found at:
- ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/
- ftp://ftp.suse.com/pub/people/tiwai/snapshot/
Sending a Bug Report
@@ -696,7 +696,7 @@ via hda-verb won't change the mixer value.
The hda-verb program is found in the ftp directory:
- ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/misc/
- ftp://ftp.suse.com/pub/people/tiwai/misc/
Also a git repository is available:
@@ -764,7 +764,7 @@ operation, the jack plugging simulation, etc.
The package is found in:
- ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/misc/
- ftp://ftp.suse.com/pub/people/tiwai/misc/
A git repository is available:

View File

@@ -789,6 +789,7 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.pengutronix.de/git/imx/linux-2.6.git
F: arch/arm/mach-mx*/
F: arch/arm/mach-imx/
F: arch/arm/plat-mxc/
ARM/FREESCALE IMX51
@@ -804,6 +805,13 @@ S: Maintained
T: git git://git.linaro.org/people/shawnguo/linux-2.6.git
F: arch/arm/mach-imx/*imx6*
ARM/FREESCALE MXS ARM ARCHITECTURE
M: Shawn Guo <shawn.guo@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.linaro.org/people/shawnguo/linux-2.6.git
F: arch/arm/mach-mxs/
ARM/GLOMATION GESBC9312SX MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1789,6 +1797,14 @@ F: include/net/cfg80211.h
F: net/wireless/*
X: net/wireless/wext*
CHAR and MISC DRIVERS
M: Arnd Bergmann <arnd@arndb.de>
M: Greg Kroah-Hartman <greg@kroah.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
S: Maintained
F: drivers/char/*
F: drivers/misc/*
CHECKPATCH
M: Andy Whitcroft <apw@canonical.com>
S: Supported
@@ -1927,9 +1943,11 @@ S: Maintained
F: drivers/connector/
CONTROL GROUPS (CGROUPS)
M: Paul Menage <paul@paulmenage.org>
M: Tejun Heo <tj@kernel.org>
M: Li Zefan <lizf@cn.fujitsu.com>
L: containers@lists.linux-foundation.org
L: cgroups@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
S: Maintained
F: include/linux/cgroup*
F: kernel/cgroup*
@@ -2584,7 +2602,7 @@ S: Maintained
F: drivers/net/ethernet/i825xx/eexpress.*
ETHERNET BRIDGE
M: Stephen Hemminger <shemminger@linux-foundation.org>
M: Stephen Hemminger <shemminger@vyatta.com>
L: bridge@lists.linux-foundation.org
L: netdev@vger.kernel.org
W: http://www.linuxfoundation.org/en/Net:Bridge
@@ -3718,7 +3736,7 @@ F: fs/jbd2/
F: include/linux/jbd2.h
JSM Neo PCI based serial card
M: Breno Leitao <leitao@linux.vnet.ibm.com>
M: Lucas Tavares <lucaskt@linux.vnet.ibm.com>
L: linux-serial@vger.kernel.org
S: Maintained
F: drivers/tty/serial/jsm/
@@ -4304,6 +4322,7 @@ MEMORY RESOURCE CONTROLLER
M: Balbir Singh <bsingharora@gmail.com>
M: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
M: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
L: cgroups@vger.kernel.org
L: linux-mm@kvack.org
S: Maintained
F: mm/memcontrol.c
@@ -4337,7 +4356,7 @@ MIPS
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-mips@linux-mips.org
W: http://www.linux-mips.org/
T: git git://git.linux-mips.org/pub/scm/linux.git
T: git git://git.linux-mips.org/pub/scm/ralf/linux.git
Q: http://patchwork.linux-mips.org/project/linux-mips/list/
S: Supported
F: Documentation/mips/
@@ -4470,7 +4489,7 @@ S: Supported
F: drivers/infiniband/hw/nes/
NETEM NETWORK EMULATOR
M: Stephen Hemminger <shemminger@linux-foundation.org>
M: Stephen Hemminger <shemminger@vyatta.com>
L: netem@lists.linux-foundation.org
S: Maintained
F: net/sched/sch_netem.c
@@ -4947,7 +4966,7 @@ F: drivers/char/ppdev.c
F: include/linux/ppdev.h
PARAVIRT_OPS INTERFACE
M: Jeremy Fitzhardinge <jeremy@xensource.com>
M: Jeremy Fitzhardinge <jeremy@goop.org>
M: Chris Wright <chrisw@sous-sol.org>
M: Alok Kataria <akataria@vmware.com>
M: Rusty Russell <rusty@rustcorp.com.au>
@@ -5656,7 +5675,6 @@ F: drivers/media/video/*7146*
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
@@ -5985,7 +6003,7 @@ S: Maintained
F: drivers/usb/misc/sisusbvga/
SKGE, SKY2 10/100/1000 GIGABIT ETHERNET DRIVERS
M: Stephen Hemminger <shemminger@linux-foundation.org>
M: Stephen Hemminger <shemminger@vyatta.com>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/marvell/sk*
@@ -7399,8 +7417,8 @@ S: Maintained
F: arch/x86/kernel/cpu/mcheck/*
XEN HYPERVISOR INTERFACE
M: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
M: Jeremy Fitzhardinge <jeremy@goop.org>
L: xen-devel@lists.xensource.com (moderated for non-subscribers)
L: virtualization@lists.linux-foundation.org
S: Supported
@@ -7433,7 +7451,8 @@ F: drivers/xen/*swiotlb*
XFS FILESYSTEM
P: Silicon Graphics Inc
M: Alex Elder <aelder@sgi.com>
M: Ben Myers <bpm@sgi.com>
M: Alex Elder <elder@kernel.org>
M: xfs-masters@oss.sgi.com
L: xfs@oss.sgi.com
W: http://oss.sgi.com/projects/xfs

View File

@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 2
SUBLEVEL = 0
EXTRAVERSION = -rc2
EXTRAVERSION = -rc4
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*

View File

@@ -1231,7 +1231,7 @@ config ARM_ERRATA_742231
capabilities of the processor.
config PL310_ERRATA_588369
bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
depends on CACHE_L2X0
help
The PL310 L2 cache controller implements three types of Clean &
@@ -1256,7 +1256,7 @@ config ARM_ERRATA_720789
entries regardless of the ASID.
config PL310_ERRATA_727915
bool "Background Clean & Invalidate by Way operation can cause data corruption"
bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
depends on CACHE_L2X0
help
PL310 implements the Clean & Invalidate by Way L2 cache maintenance
@@ -1289,8 +1289,8 @@ config ARM_ERRATA_751472
operation is received by a CPU before the ICIALLUIS has completed,
potentially leading to corrupted entries in the cache or TLB.
config ARM_ERRATA_753970
bool "ARM errata: cache sync operation may be faulty"
config PL310_ERRATA_753970
bool "PL310 errata: cache sync operation may be faulty"
depends on CACHE_PL310
help
This option enables the workaround for the 753970 PL310 (r3p0) erratum.
@@ -1352,6 +1352,18 @@ config ARM_ERRATA_764369
relevant cache maintenance functions and sets a specific bit
in the diagnostic control register of the SCU.
config PL310_ERRATA_769419
bool "PL310 errata: no automatic Store Buffer drain"
depends on CACHE_L2X0
help
On revisions of the PL310 prior to r3p2, the Store Buffer does
not automatically drain. This can cause normal, non-cacheable
writes to be retained when the memory system is idle, leading
to suboptimal I/O performance for drivers using coherent DMA.
This option adds a write barrier to the cpu_idle loop so that,
on systems with an outer cache, the store buffer is drained
explicitly.
endmenu
source "arch/arm/common/Kconfig"

View File

@@ -65,6 +65,8 @@ $(obj)/%.dtb: $(src)/dts/%.dts
$(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y))
clean-files := *.dtb
quiet_cmd_uimage = UIMAGE $@
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \
-C none -a $(LOADADDR) -e $(STARTADDR) \

View File

@@ -526,7 +526,8 @@ static void __init gic_pm_init(struct gic_chip_data *gic)
sizeof(u32));
BUG_ON(!gic->saved_ppi_conf);
cpu_pm_register_notifier(&gic_notifier_block);
if (gic == &gic_data[0])
cpu_pm_register_notifier(&gic_notifier_block);
}
#else
static void __init gic_pm_init(struct gic_chip_data *gic)
@@ -581,13 +582,16 @@ void __init gic_init(unsigned int gic_nr, int irq_start,
* For primary GICs, skip over SGIs.
* For secondary GICs, skip over PPIs, too.
*/
domain->hwirq_base = 32;
if (gic_nr == 0) {
gic_cpu_base_addr = cpu_base;
domain->hwirq_base = 16;
if (irq_start > 0)
irq_start = (irq_start & ~31) + 16;
} else
domain->hwirq_base = 32;
if ((irq_start & 31) > 0) {
domain->hwirq_base = 16;
if (irq_start != -1)
irq_start = (irq_start & ~31) + 16;
}
}
/*
* Find out how many interrupts are supported.

View File

@@ -1211,8 +1211,8 @@ static inline u32 _prepare_ccr(const struct pl330_reqcfg *rqc)
ccr |= (rqc->brst_size << CC_SRCBRSTSIZE_SHFT);
ccr |= (rqc->brst_size << CC_DSTBRSTSIZE_SHFT);
ccr |= (rqc->dcctl << CC_SRCCCTRL_SHFT);
ccr |= (rqc->scctl << CC_DSTCCTRL_SHFT);
ccr |= (rqc->scctl << CC_SRCCCTRL_SHFT);
ccr |= (rqc->dcctl << CC_DSTCCTRL_SHFT);
ccr |= (rqc->swap << CC_SWAP_SHFT);
@@ -1623,6 +1623,11 @@ static inline int _alloc_event(struct pl330_thread *thrd)
return -1;
}
static bool _chan_ns(const struct pl330_info *pi, int i)
{
return pi->pcfg.irq_ns & (1 << i);
}
/* Upon success, returns IdentityToken for the
* allocated channel, NULL otherwise.
*/
@@ -1647,7 +1652,8 @@ void *pl330_request_channel(const struct pl330_info *pi)
for (i = 0; i < chans; i++) {
thrd = &pl330->channels[i];
if (thrd->free) {
if ((thrd->free) && (!_manager_ns(thrd) ||
_chan_ns(pi, i))) {
thrd->ev = _alloc_event(thrd);
if (thrd->ev >= 0) {
thrd->free = false;

View File

@@ -38,7 +38,6 @@ CONFIG_IP_PNP_RARP=y
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
@@ -52,16 +51,12 @@ CONFIG_MTD_NAND_ATMEL=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_ATMEL_SSC=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_MACB=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
@@ -81,7 +76,6 @@ CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_FB=y
CONFIG_FB_ATMEL=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
@@ -99,7 +93,6 @@ CONFIG_MMC_AT91=m
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_AT91SAM9=y
CONFIG_EXT2_FS=y
CONFIG_INOTIFY=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y

View File

@@ -5,7 +5,6 @@ CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
@@ -56,7 +55,6 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
@@ -75,18 +73,8 @@ CONFIG_IPV6_TUNNEL=m
CONFIG_BRIDGE=m
CONFIG_VLAN_8021Q=m
CONFIG_BT=m
CONFIG_BT_L2CAP=m
CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_CONCAT=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_AFS_PARTS=y
CONFIG_MTD_CHAR=y
@@ -108,8 +96,6 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_ATMEL_TCLIB=y
CONFIG_EEPROM_LEGACY=m
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=m
@@ -119,14 +105,23 @@ CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
CONFIG_TUN=m
CONFIG_ARM_AT91_ETHER=y
CONFIG_PHYLIB=y
CONFIG_DAVICOM_PHY=y
CONFIG_SMSC_PHY=y
CONFIG_MICREL_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_ARM_AT91_ETHER=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_PPP=y
CONFIG_PPP_BSDCOMP=y
CONFIG_PPP_DEFLATE=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=y
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
@@ -139,18 +134,6 @@ CONFIG_USB_NET_RNDIS_HOST=m
CONFIG_USB_ALI_M5632=y
CONFIG_USB_AN2720=y
CONFIG_USB_EPSON2888=y
CONFIG_PPP=y
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_ASYNC=y
CONFIG_PPP_DEFLATE=y
CONFIG_PPP_BSDCOMP=y
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=640
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=480
@@ -158,9 +141,9 @@ CONFIG_INPUT_EVDEV=y
CONFIG_KEYBOARD_GPIO=y
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_LEGACY_PTY_COUNT=32
CONFIG_SERIAL_ATMEL=y
CONFIG_SERIAL_ATMEL_CONSOLE=y
CONFIG_LEGACY_PTY_COUNT=32
CONFIG_HW_RANDOM=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
@@ -290,7 +273,6 @@ CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_SMB_FS=m
CONFIG_CIFS=m
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
@@ -335,7 +317,6 @@ CONFIG_NLS_UTF8=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_FTRACE is not set
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_SHA1=y

View File

@@ -12,11 +12,23 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARCH_AT91=y
CONFIG_ARCH_AT91SAM9260=y
CONFIG_ARCH_AT91SAM9260_SAM9XE=y
CONFIG_MACH_AT91SAM9260EK=y
CONFIG_MACH_CAM60=y
CONFIG_MACH_SAM9_L9260=y
CONFIG_MACH_AFEB9260=y
CONFIG_MACH_USB_A9260=y
CONFIG_MACH_QIL_A9260=y
CONFIG_MACH_CPU9260=y
CONFIG_MACH_FLEXIBITY=y
CONFIG_MACH_SNAPPER_9260=y
CONFIG_MACH_AT91SAM_DT=y
CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
# CONFIG_ARM_THUMB is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_CMDLINE="mem=64M console=ttyS0,115200 initrd=0x21100000,3145728 root=/dev/ram0 rw"
CONFIG_FPE_NWFPE=y
CONFIG_NET=y
@@ -33,12 +45,10 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_ATMEL_SSC=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_MACB=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
@@ -55,7 +65,6 @@ CONFIG_I2C_GPIO=y
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_AT91SAM9X_WATCHDOG=y
# CONFIG_VGA_CONSOLE is not set
# CONFIG_USB_HID is not set
CONFIG_USB=y
CONFIG_USB_DEVICEFS=y
@@ -71,7 +80,6 @@ CONFIG_USB_G_SERIAL=m
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_AT91SAM9=y
CONFIG_EXT2_FS=y
CONFIG_INOTIFY=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y

View File

@@ -14,6 +14,15 @@ CONFIG_ARCH_AT91=y
CONFIG_ARCH_AT91SAM9G20=y
CONFIG_MACH_AT91SAM9G20EK=y
CONFIG_MACH_AT91SAM9G20EK_2MMC=y
CONFIG_MACH_CPU9G20=y
CONFIG_MACH_ACMENETUSFOXG20=y
CONFIG_MACH_PORTUXG20=y
CONFIG_MACH_STAMP9G20=y
CONFIG_MACH_PCONTROL_G20=y
CONFIG_MACH_GSIA18S=y
CONFIG_MACH_USB_A9G20=y
CONFIG_MACH_SNAPPER_9260=y
CONFIG_MACH_AT91SAM_DT=y
CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
# CONFIG_ARM_THUMB is not set
CONFIG_AEABI=y
@@ -21,9 +30,10 @@ CONFIG_LEDS=y
CONFIG_LEDS_CPU=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_CMDLINE="mem=64M console=ttyS0,115200 initrd=0x21100000,3145728 root=/dev/ram0 rw"
CONFIG_FPE_NWFPE=y
CONFIG_PM=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -37,8 +47,6 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_CONCAT=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
@@ -48,17 +56,13 @@ CONFIG_MTD_NAND_ATMEL=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_ATMEL_SSC=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_MACB=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=320
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=240
@@ -66,15 +70,14 @@ CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_GPIO=y
# CONFIG_INPUT_MOUSE is not set
CONFIG_LEGACY_PTY_COUNT=16
CONFIG_SERIAL_ATMEL=y
CONFIG_SERIAL_ATMEL_CONSOLE=y
CONFIG_LEGACY_PTY_COUNT=16
CONFIG_HW_RANDOM=y
CONFIG_SPI=y
CONFIG_SPI_ATMEL=y
CONFIG_SPI_SPIDEV=y
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
@@ -82,7 +85,6 @@ CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_VERBOSE_PROCFS is not set
CONFIG_SND_AT73C213=y
CONFIG_USB=y
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
@@ -105,7 +107,6 @@ CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_AT91SAM9=y
CONFIG_EXT2_FS=y
CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y

View File

@@ -18,6 +18,7 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_ARCH_AT91=y
CONFIG_ARCH_AT91SAM9G45=y
CONFIG_MACH_AT91SAM9M10G45EK=y
CONFIG_MACH_AT91SAM_DT=y
CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
CONFIG_AT91_SLOW_CLOCK=y
CONFIG_AEABI=y
@@ -73,11 +74,8 @@ CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_DAVICOM_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_MACB=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_DAVICOM_PHY=y
CONFIG_LIBERTAS_THINFIRM=m
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AT76C50X_USB=m
@@ -131,7 +129,6 @@ CONFIG_I2C_GPIO=y
CONFIG_SPI=y
CONFIG_SPI_ATMEL=y
# CONFIG_HWMON is not set
# CONFIG_MFD_SUPPORT is not set
CONFIG_FB=y
CONFIG_FB_ATMEL=y
CONFIG_FB_UDL=m

View File

@@ -23,8 +23,6 @@ CONFIG_NET=y
CONFIG_UNIX=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_CONCAT=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
@@ -35,7 +33,6 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=4
CONFIG_BLK_DEV_RAM_SIZE=24576
CONFIG_ATMEL_SSC=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_MULTI_LUN=y
@@ -62,13 +59,11 @@ CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_AT91SAM9X_WATCHDOG=y
CONFIG_FB=y
CONFIG_FB_ATMEL=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_MMC=y
CONFIG_MMC_AT91=m
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_AT91SAM9=y
CONFIG_EXT2_FS=y
CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y

View File

@@ -287,7 +287,7 @@ CONFIG_USB=y
# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_PXA27X=y
CONFIG_USB_PXA27X=y
CONFIG_USB_ETH=m
# CONFIG_USB_ETH_RNDIS is not set
CONFIG_MMC=y

View File

@@ -263,7 +263,7 @@ CONFIG_USB=y
# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_PXA27X=y
CONFIG_USB_PXA27X=y
CONFIG_USB_ETH=m
# CONFIG_USB_ETH_RNDIS is not set
CONFIG_MMC=y

View File

@@ -132,7 +132,7 @@ CONFIG_USB_MON=m
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_VBUS_DRAW=500
CONFIG_USB_GADGET_PXA27X=y
CONFIG_USB_PXA27X=y
CONFIG_USB_ETH=m
# CONFIG_USB_ETH_RNDIS is not set
CONFIG_USB_GADGETFS=m

View File

@@ -48,7 +48,6 @@ CONFIG_MACH_SX1=y
CONFIG_MACH_NOKIA770=y
CONFIG_MACH_AMS_DELTA=y
CONFIG_MACH_OMAP_GENERIC=y
CONFIG_OMAP_CLOCKS_SET_BY_BOOTLOADER=y
CONFIG_OMAP_ARM_216MHZ=y
CONFIG_OMAP_ARM_195MHZ=y
CONFIG_OMAP_ARM_192MHZ=y

View File

@@ -14,8 +14,6 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_ARCH_U300=y
CONFIG_MACH_U300=y
CONFIG_MACH_U300_BS335=y
CONFIG_MACH_U300_DUAL_RAM=y
CONFIG_U300_DEBUG=y
CONFIG_MACH_U300_SPIDUMMY=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@@ -26,19 +24,21 @@ CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="root=/dev/ram0 rw rootfstype=rootfs console=ttyAMA0,115200n8 lpj=515072"
CONFIG_CPU_IDLE=y
CONFIG_FPE_NWFPE=y
CONFIG_PM=y
# CONFIG_SUSPEND is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_MISC_DEVICES is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_FSMC=y
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
CONFIG_LEGACY_PTY_COUNT=16
CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
CONFIG_LEGACY_PTY_COUNT=16
# CONFIG_HW_RANDOM is not set
CONFIG_I2C=y
# CONFIG_HWMON is not set
@@ -51,6 +51,7 @@ CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
CONFIG_MMC_CLKGATE=y
CONFIG_MMC_ARMMMCI=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
@@ -65,10 +66,8 @@ CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_DEBUG_INFO=y
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRC32 is not set

View File

@@ -10,7 +10,7 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_ARCH_U8500=y
CONFIG_UX500_SOC_DB5500=y
CONFIG_UX500_SOC_DB8500=y
CONFIG_MACH_U8500=y
CONFIG_MACH_HREFV60=y
CONFIG_MACH_SNOWBALL=y
CONFIG_MACH_U5500=y
CONFIG_NO_HZ=y
@@ -24,6 +24,7 @@ CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_VFP=y
CONFIG_NEON=y
CONFIG_PM_RUNTIME=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -41,11 +42,8 @@ CONFIG_MISC_DEVICES=y
CONFIG_AB8500_PWM=y
CONFIG_SENSORS_BH1780=y
CONFIG_NETDEVICES=y
CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_SMSC_PHY=y
# CONFIG_WLAN is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
@@ -72,15 +70,12 @@ CONFIG_SPI=y
CONFIG_SPI_PL022=y
CONFIG_GPIO_STMPE=y
CONFIG_GPIO_TC3589X=y
# CONFIG_HWMON is not set
CONFIG_MFD_STMPE=y
CONFIG_MFD_TC3589X=y
CONFIG_AB5500_CORE=y
CONFIG_AB8500_CORE=y
CONFIG_REGULATOR_AB8500=y
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_GADGET_MUSB_HDRC=y
CONFIG_MUSB_PIO_ONLY=y
CONFIG_USB_GADGET=y
CONFIG_AB8500_USB=y
CONFIG_MMC=y
@@ -97,6 +92,7 @@ CONFIG_DMADEVICES=y
CONFIG_STE_DMA40=y
CONFIG_STAGING=y
CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4=y
CONFIG_HSEM_U8500=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y

View File

@@ -140,7 +140,7 @@ CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_GADGET=m
CONFIG_USB_GADGET_PXA27X=y
CONFIG_USB_PXA27X=y
CONFIG_USB_ETH=m
CONFIG_USB_GADGETFS=m
CONFIG_USB_FILE_STORAGE=m

View File

@@ -20,6 +20,8 @@
#ifndef __ASM_ARM_HARDWARE_L2X0_H
#define __ASM_ARM_HARDWARE_L2X0_H
#include <linux/errno.h>
#define L2X0_CACHE_ID 0x000
#define L2X0_CACHE_TYPE 0x004
#define L2X0_CTRL 0x100

View File

@@ -13,6 +13,7 @@
struct tag;
struct meminfo;
struct sys_timer;
struct pt_regs;
struct machine_desc {
unsigned int nr; /* architecture number */

View File

@@ -55,16 +55,6 @@ reserve_pmu(enum arm_pmu_type type);
extern void
release_pmu(enum arm_pmu_type type);
/**
* init_pmu() - Initialise the PMU.
*
* Initialise the system ready for PMU enabling. This should typically set the
* IRQ affinity and nothing else. The users (oprofile/perf events etc) will do
* the actual hardware initialisation.
*/
extern int
init_pmu(enum arm_pmu_type type);
#else /* CONFIG_CPU_HAS_PMU */
#include <linux/err.h>

View File

@@ -25,7 +25,7 @@ extern struct cputopo_arm cpu_topology[NR_CPUS];
void init_cpu_topology(void);
void store_cpu_topology(unsigned int cpuid);
const struct cpumask *cpu_coregroup_mask(unsigned int cpu);
const struct cpumask *cpu_coregroup_mask(int cpu);
#else

View File

@@ -402,6 +402,8 @@
#define __NR_syncfs (__NR_SYSCALL_BASE+373)
#define __NR_sendmmsg (__NR_SYSCALL_BASE+374)
#define __NR_setns (__NR_SYSCALL_BASE+375)
#define __NR_process_vm_readv (__NR_SYSCALL_BASE+376)
#define __NR_process_vm_writev (__NR_SYSCALL_BASE+377)
/*
* The following SWIs are ARM private.

View File

@@ -385,6 +385,8 @@
CALL(sys_syncfs)
CALL(sys_sendmmsg)
/* 375 */ CALL(sys_setns)
CALL(sys_process_vm_readv)
CALL(sys_process_vm_writev)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted

View File

@@ -497,7 +497,7 @@ ENDPROC(__und_usr)
.popsection
.pushsection __ex_table,"a"
.long 1b, 4b
#if __LINUX_ARM_ARCH__ >= 7
#if CONFIG_ARM_THUMB && __LINUX_ARM_ARCH__ >= 6 && CONFIG_CPU_V7
.long 2b, 4b
.long 3b, 4b
#endif

View File

@@ -360,7 +360,7 @@ __secondary_data:
* r13 = *virtual* address to jump to upon completion
*/
__enable_mmu:
#ifdef CONFIG_ALIGNMENT_TRAP
#if defined(CONFIG_ALIGNMENT_TRAP) && __LINUX_ARM_ARCH__ < 6
orr r0, r0, #CR_A
#else
bic r0, r0, #CR_A

View File

@@ -519,10 +519,12 @@ static const union decode_item arm_cccc_0000_____1001_table[] = {
static const union decode_item arm_cccc_0001_____1001_table[] = {
/* Synchronization primitives */
#if __LINUX_ARM_ARCH__ < 6
/* Deprecated on ARMv6 and may be UNDEFINED on v7 */
/* SMP/SWPB cccc 0001 0x00 xxxx xxxx xxxx 1001 xxxx */
DECODE_EMULATEX (0x0fb000f0, 0x01000090, emulate_rd12rn16rm0_rwflags_nopc,
REGS(NOPC, NOPC, 0, 0, NOPC)),
#endif
/* LDREX/STREX{,D,B,H} cccc 0001 1xxx xxxx xxxx xxxx 1001 xxxx */
/* And unallocated instructions... */
DECODE_END

View File

@@ -427,18 +427,25 @@ void kprobe_arm_test_cases(void)
TEST_GROUP("Synchronization primitives")
/*
* Use hard coded constants for SWP instructions to avoid warnings
* about deprecated instructions.
*/
TEST_RP( ".word 0xe108e097 @ swp lr, r",7,VAL2,", [r",8,0,"]")
TEST_R( ".word 0x610d0091 @ swpvs r0, r",1,VAL1,", [sp]")
TEST_RP( ".word 0xe10cd09e @ swp sp, r",14,VAL2,", [r",12,13*4,"]")
#if __LINUX_ARM_ARCH__ < 6
TEST_RP("swp lr, r",7,VAL2,", [r",8,0,"]")
TEST_R( "swpvs r0, r",1,VAL1,", [sp]")
TEST_RP("swp sp, r",14,VAL2,", [r",12,13*4,"]")
#else
TEST_UNSUPPORTED(".word 0xe108e097 @ swp lr, r7, [r8]")
TEST_UNSUPPORTED(".word 0x610d0091 @ swpvs r0, r1, [sp]")
TEST_UNSUPPORTED(".word 0xe10cd09e @ swp sp, r14 [r12]")
#endif
TEST_UNSUPPORTED(".word 0xe102f091 @ swp pc, r1, [r2]")
TEST_UNSUPPORTED(".word 0xe102009f @ swp r0, pc, [r2]")
TEST_UNSUPPORTED(".word 0xe10f0091 @ swp r0, r1, [pc]")
TEST_RP( ".word 0xe148e097 @ swpb lr, r",7,VAL2,", [r",8,0,"]")
TEST_R( ".word 0x614d0091 @ swpvsb r0, r",1,VAL1,", [sp]")
#if __LINUX_ARM_ARCH__ < 6
TEST_RP("swpb lr, r",7,VAL2,", [r",8,0,"]")
TEST_R( "swpvsb r0, r",1,VAL1,", [sp]")
#else
TEST_UNSUPPORTED(".word 0xe148e097 @ swpb lr, r7, [r8]")
TEST_UNSUPPORTED(".word 0x614d0091 @ swpvsb r0, r1, [sp]")
#endif
TEST_UNSUPPORTED(".word 0xe142f091 @ swpb pc, r1, [r2]")
TEST_UNSUPPORTED(".word 0xe1100090") /* Unallocated space */
@@ -550,7 +557,7 @@ void kprobe_arm_test_cases(void)
TEST_RPR( "strccd r",8, VAL2,", [r",13,0, ", r",12,48,"]")
TEST_RPR( "strd r",4, VAL1,", [r",2, 24,", r",3, 48,"]!")
TEST_RPR( "strcsd r",12,VAL2,", [r",11,48,", -r",10,24,"]!")
TEST_RPR( "strd r",2, VAL1,", [r",3, 24,"], r",4,48,"")
TEST_RPR( "strd r",2, VAL1,", [r",5, 24,"], r",4,48,"")
TEST_RPR( "strd r",10,VAL2,", [r",9, 48,"], -r",7,24,"")
TEST_UNSUPPORTED(".word 0xe1afc0fa @ strd r12, [pc, r10]!")

View File

@@ -222,8 +222,8 @@ void kprobe_thumb16_test_cases(void)
DONT_TEST_IN_ITBLOCK(
TEST_BF_R( "cbnz r",0,0, ", 2f")
TEST_BF_R( "cbz r",2,-1,", 2f")
TEST_BF_RX( "cbnz r",4,1, ", 2f",0x20)
TEST_BF_RX( "cbz r",7,0, ", 2f",0x40)
TEST_BF_RX( "cbnz r",4,1, ", 2f", SPACE_0x20)
TEST_BF_RX( "cbz r",7,0, ", 2f", SPACE_0x40)
)
TEST_R("sxth r0, r",7, HH1,"")
TEST_R("sxth r7, r",0, HH2,"")
@@ -246,7 +246,7 @@ DONT_TEST_IN_ITBLOCK(
TESTCASE_START(code) \
TEST_ARG_PTR(13, offset) \
TEST_ARG_END("") \
TEST_BRANCH_F(code,0) \
TEST_BRANCH_F(code) \
TESTCASE_END
TEST("push {r0}")
@@ -319,8 +319,8 @@ CONDITION_INSTRUCTIONS(8,
TEST_BF( "b 2f")
TEST_BB( "b 2b")
TEST_BF_X("b 2f", 0x400)
TEST_BB_X("b 2b", 0x400)
TEST_BF_X("b 2f", SPACE_0x400)
TEST_BB_X("b 2b", SPACE_0x400)
TEST_GROUP("Testing instructions in IT blocks")
@@ -746,7 +746,7 @@ CONDITION_INSTRUCTIONS(22,
TEST_BB("bne.w 2b")
TEST_BF("bgt.w 2f")
TEST_BB("blt.w 2b")
TEST_BF_X("bpl.w 2f",0x1000)
TEST_BF_X("bpl.w 2f", SPACE_0x1000)
)
TEST_UNSUPPORTED("msr cpsr, r0")
@@ -786,11 +786,11 @@ CONDITION_INSTRUCTIONS(22,
TEST_BF( "b.w 2f")
TEST_BB( "b.w 2b")
TEST_BF_X("b.w 2f", 0x1000)
TEST_BF_X("b.w 2f", SPACE_0x1000)
TEST_BF( "bl.w 2f")
TEST_BB( "bl.w 2b")
TEST_BB_X("bl.w 2b", 0x1000)
TEST_BB_X("bl.w 2b", SPACE_0x1000)
TEST_X( "blx __dummy_arm_subroutine",
".arm \n\t"

View File

@@ -149,23 +149,31 @@ struct test_arg_end {
"1: "instruction" \n\t" \
" nop \n\t"
#define TEST_BRANCH_F(instruction, xtra_dist) \
#define TEST_BRANCH_F(instruction) \
TEST_INSTRUCTION(instruction) \
".if "#xtra_dist" \n\t" \
" b 99f \n\t" \
".space "#xtra_dist" \n\t" \
".endif \n\t" \
" b 99f \n\t" \
"2: nop \n\t"
#define TEST_BRANCH_B(instruction, xtra_dist) \
#define TEST_BRANCH_B(instruction) \
" b 50f \n\t" \
" b 99f \n\t" \
"2: nop \n\t" \
" b 99f \n\t" \
".if "#xtra_dist" \n\t" \
".space "#xtra_dist" \n\t" \
".endif \n\t" \
TEST_INSTRUCTION(instruction)
#define TEST_BRANCH_FX(instruction, codex) \
TEST_INSTRUCTION(instruction) \
" b 99f \n\t" \
codex" \n\t" \
" b 99f \n\t" \
"2: nop \n\t"
#define TEST_BRANCH_BX(instruction, codex) \
" b 50f \n\t" \
" b 99f \n\t" \
"2: nop \n\t" \
" b 99f \n\t" \
codex" \n\t" \
TEST_INSTRUCTION(instruction)
#define TESTCASE_END \
@@ -301,47 +309,60 @@ struct test_arg_end {
TESTCASE_START(code1 #reg1 code2) \
TEST_ARG_PTR(reg1, val1) \
TEST_ARG_END("") \
TEST_BRANCH_F(code1 #reg1 code2, 0) \
TEST_BRANCH_F(code1 #reg1 code2) \
TESTCASE_END
#define TEST_BF_X(code, xtra_dist) \
#define TEST_BF(code) \
TESTCASE_START(code) \
TEST_ARG_END("") \
TEST_BRANCH_F(code, xtra_dist) \
TEST_BRANCH_F(code) \
TESTCASE_END
#define TEST_BB_X(code, xtra_dist) \
#define TEST_BB(code) \
TESTCASE_START(code) \
TEST_ARG_END("") \
TEST_BRANCH_B(code, xtra_dist) \
TEST_BRANCH_B(code) \
TESTCASE_END
#define TEST_BF_RX(code1, reg, val, code2, xtra_dist) \
TESTCASE_START(code1 #reg code2) \
TEST_ARG_REG(reg, val) \
TEST_ARG_END("") \
TEST_BRANCH_F(code1 #reg code2, xtra_dist) \
#define TEST_BF_R(code1, reg, val, code2) \
TESTCASE_START(code1 #reg code2) \
TEST_ARG_REG(reg, val) \
TEST_ARG_END("") \
TEST_BRANCH_F(code1 #reg code2) \
TESTCASE_END
#define TEST_BB_RX(code1, reg, val, code2, xtra_dist) \
TESTCASE_START(code1 #reg code2) \
TEST_ARG_REG(reg, val) \
TEST_ARG_END("") \
TEST_BRANCH_B(code1 #reg code2, xtra_dist) \
#define TEST_BB_R(code1, reg, val, code2) \
TESTCASE_START(code1 #reg code2) \
TEST_ARG_REG(reg, val) \
TEST_ARG_END("") \
TEST_BRANCH_B(code1 #reg code2) \
TESTCASE_END
#define TEST_BF(code) TEST_BF_X(code, 0)
#define TEST_BB(code) TEST_BB_X(code, 0)
#define TEST_BF_R(code1, reg, val, code2) TEST_BF_RX(code1, reg, val, code2, 0)
#define TEST_BB_R(code1, reg, val, code2) TEST_BB_RX(code1, reg, val, code2, 0)
#define TEST_BF_RR(code1, reg1, val1, code2, reg2, val2, code3) \
TESTCASE_START(code1 #reg1 code2 #reg2 code3) \
TEST_ARG_REG(reg1, val1) \
TEST_ARG_REG(reg2, val2) \
TEST_ARG_END("") \
TEST_BRANCH_F(code1 #reg1 code2 #reg2 code3, 0) \
TEST_BRANCH_F(code1 #reg1 code2 #reg2 code3) \
TESTCASE_END
#define TEST_BF_X(code, codex) \
TESTCASE_START(code) \
TEST_ARG_END("") \
TEST_BRANCH_FX(code, codex) \
TESTCASE_END
#define TEST_BB_X(code, codex) \
TESTCASE_START(code) \
TEST_ARG_END("") \
TEST_BRANCH_BX(code, codex) \
TESTCASE_END
#define TEST_BF_RX(code1, reg, val, code2, codex) \
TESTCASE_START(code1 #reg code2) \
TEST_ARG_REG(reg, val) \
TEST_ARG_END("") \
TEST_BRANCH_FX(code1 #reg code2, codex) \
TESTCASE_END
#define TEST_X(code, codex) \
@@ -372,6 +393,25 @@ struct test_arg_end {
TESTCASE_END
/*
* Macros for defining space directives spread over multiple lines.
* These are required so the compiler guesses better the length of inline asm
* code and will spill the literal pool early enough to avoid generating PC
* relative loads with out of range offsets.
*/
#define TWICE(x) x x
#define SPACE_0x8 TWICE(".space 4\n\t")
#define SPACE_0x10 TWICE(SPACE_0x8)
#define SPACE_0x20 TWICE(SPACE_0x10)
#define SPACE_0x40 TWICE(SPACE_0x20)
#define SPACE_0x80 TWICE(SPACE_0x40)
#define SPACE_0x100 TWICE(SPACE_0x80)
#define SPACE_0x200 TWICE(SPACE_0x100)
#define SPACE_0x400 TWICE(SPACE_0x200)
#define SPACE_0x800 TWICE(SPACE_0x400)
#define SPACE_0x1000 TWICE(SPACE_0x800)
/* Various values used in test cases... */
#define N(val) (val ^ 0xffffffff)
#define VAL1 0x12345678

View File

@@ -32,24 +32,6 @@ static atomic_t waiting_for_crash_ipi;
int machine_kexec_prepare(struct kimage *image)
{
unsigned long page_list;
void *reboot_code_buffer;
page_list = image->head & PAGE_MASK;
reboot_code_buffer = page_address(image->control_code_page);
/* Prepare parameters for reboot_code_buffer*/
kexec_start_address = image->start;
kexec_indirection_page = page_list;
kexec_mach_type = machine_arch_type;
kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET;
/* copy our kernel relocation code to the control code page */
memcpy(reboot_code_buffer,
relocate_new_kernel, relocate_new_kernel_size);
flush_icache_range((unsigned long) reboot_code_buffer,
(unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE);
return 0;
}
@@ -100,14 +82,31 @@ void (*kexec_reinit)(void);
void machine_kexec(struct kimage *image)
{
unsigned long page_list;
unsigned long reboot_code_buffer_phys;
void *reboot_code_buffer;
page_list = image->head & PAGE_MASK;
/* we need both effective and real address here */
reboot_code_buffer_phys =
page_to_pfn(image->control_code_page) << PAGE_SHIFT;
reboot_code_buffer = page_address(image->control_code_page);
/* Prepare parameters for reboot_code_buffer*/
kexec_start_address = image->start;
kexec_indirection_page = page_list;
kexec_mach_type = machine_arch_type;
kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET;
/* copy our kernel relocation code to the control code page */
memcpy(reboot_code_buffer,
relocate_new_kernel, relocate_new_kernel_size);
flush_icache_range((unsigned long) reboot_code_buffer,
(unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE);
printk(KERN_INFO "Bye!\n");
if (kexec_reinit)

View File

@@ -343,8 +343,14 @@ validate_group(struct perf_event *event)
{
struct perf_event *sibling, *leader = event->group_leader;
struct pmu_hw_events fake_pmu;
DECLARE_BITMAP(fake_used_mask, ARMPMU_MAX_HWEVENTS);
memset(&fake_pmu, 0, sizeof(fake_pmu));
/*
* Initialise the fake PMU. We only need to populate the
* used_mask for the purposes of validation.
*/
memset(fake_used_mask, 0, sizeof(fake_used_mask));
fake_pmu.used_mask = fake_used_mask;
if (!validate_event(&fake_pmu, leader))
return -ENOSPC;
@@ -396,6 +402,9 @@ armpmu_reserve_hardware(struct arm_pmu *armpmu)
int i, err, irq, irqs;
struct platform_device *pmu_device = armpmu->plat_device;
if (!pmu_device)
return -ENODEV;
err = reserve_pmu(armpmu->type);
if (err) {
pr_warning("unable to reserve pmu\n");

View File

@@ -33,3 +33,4 @@ release_pmu(enum arm_pmu_type type)
{
clear_bit_unlock(type, pmu_lock);
}
EXPORT_SYMBOL_GPL(release_pmu);

View File

@@ -192,6 +192,9 @@ void cpu_idle(void)
#endif
local_irq_disable();
#ifdef CONFIG_PL310_ERRATA_769419
wmb();
#endif
if (hlt_counter) {
local_irq_enable();
cpu_relax();

View File

@@ -461,8 +461,10 @@ static void __init setup_processor(void)
cpu_name, read_cpuid_id(), read_cpuid_id() & 15,
proc_arch[cpu_architecture()], cr_alignment);
sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS);
sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS);
snprintf(init_utsname()->machine, __NEW_UTS_LEN + 1, "%s%c",
list->arch_name, ENDIANNESS);
snprintf(elf_platform, ELF_PLATFORM_SIZE, "%s%c",
list->elf_name, ENDIANNESS);
elf_hwcap = list->elf_hwcap;
#ifndef CONFIG_ARM_THUMB
elf_hwcap &= ~HWCAP_THUMB;

View File

@@ -43,7 +43,7 @@
struct cputopo_arm cpu_topology[NR_CPUS];
const struct cpumask *cpu_coregroup_mask(unsigned int cpu)
const struct cpumask *cpu_coregroup_mask(int cpu)
{
return &cpu_topology[cpu].core_sibling;
}

View File

@@ -1,5 +1,9 @@
#include <asm/unwind.h>
#if __LINUX_ARM_ARCH__ >= 6
.macro bitop, instr
.macro bitop, name, instr
ENTRY( \name )
UNWIND( .fnstart )
ands ip, r1, #3
strneb r1, [ip] @ assert word-aligned
mov r2, #1
@@ -13,9 +17,13 @@
cmp r0, #0
bne 1b
bx lr
UNWIND( .fnend )
ENDPROC(\name )
.endm
.macro testop, instr, store
.macro testop, name, instr, store
ENTRY( \name )
UNWIND( .fnstart )
ands ip, r1, #3
strneb r1, [ip] @ assert word-aligned
mov r2, #1
@@ -34,9 +42,13 @@
cmp r0, #0
movne r0, #1
2: bx lr
UNWIND( .fnend )
ENDPROC(\name )
.endm
#else
.macro bitop, instr
.macro bitop, name, instr
ENTRY( \name )
UNWIND( .fnstart )
ands ip, r1, #3
strneb r1, [ip] @ assert word-aligned
and r2, r0, #31
@@ -49,6 +61,8 @@
str r2, [r1, r0, lsl #2]
restore_irqs ip
mov pc, lr
UNWIND( .fnend )
ENDPROC(\name )
.endm
/**
@@ -59,7 +73,9 @@
* Note: we can trivially conditionalise the store instruction
* to avoid dirtying the data cache.
*/
.macro testop, instr, store
.macro testop, name, instr, store
ENTRY( \name )
UNWIND( .fnstart )
ands ip, r1, #3
strneb r1, [ip] @ assert word-aligned
and r3, r0, #31
@@ -73,5 +89,7 @@
moveq r0, #0
restore_irqs ip
mov pc, lr
UNWIND( .fnend )
ENDPROC(\name )
.endm
#endif

View File

@@ -12,6 +12,4 @@
#include "bitops.h"
.text
ENTRY(_change_bit)
bitop eor
ENDPROC(_change_bit)
bitop _change_bit, eor

View File

@@ -12,6 +12,4 @@
#include "bitops.h"
.text
ENTRY(_clear_bit)
bitop bic
ENDPROC(_clear_bit)
bitop _clear_bit, bic

View File

@@ -12,6 +12,4 @@
#include "bitops.h"
.text
ENTRY(_set_bit)
bitop orr
ENDPROC(_set_bit)
bitop _set_bit, orr

View File

@@ -12,6 +12,4 @@
#include "bitops.h"
.text
ENTRY(_test_and_change_bit)
testop eor, str
ENDPROC(_test_and_change_bit)
testop _test_and_change_bit, eor, str

View File

@@ -12,6 +12,4 @@
#include "bitops.h"
.text
ENTRY(_test_and_clear_bit)
testop bicne, strne
ENDPROC(_test_and_clear_bit)
testop _test_and_clear_bit, bicne, strne

View File

@@ -12,6 +12,4 @@
#include "bitops.h"
.text
ENTRY(_test_and_set_bit)
testop orreq, streq
ENDPROC(_test_and_set_bit)
testop _test_and_set_bit, orreq, streq

View File

@@ -235,7 +235,7 @@ void __init bcmring_init_timer(void)
*/
bcmring_clocksource_init();
sp804_clockevents_register(TIMER0_VA_BASE, IRQ_TIMER0, "timer0");
sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMER0, "timer0");
}
struct sys_timer bcmring_timer = {

View File

@@ -36,6 +36,7 @@
#include <linux/mm.h>
#include <linux/pfn.h>
#include <linux/atomic.h>
#include <linux/sched.h>
#include <mach/dma.h>
/* I don't quite understand why dc4 fails when this is set to 1 and DMA is enabled */

View File

@@ -12,6 +12,8 @@
#include <linux/init.h>
#include <linux/cpuidle.h>
#include <linux/io.h>
#include <linux/export.h>
#include <linux/time.h>
#include <asm/proc-fns.h>

View File

@@ -22,6 +22,7 @@
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/smp.h>
#include <asm/cacheflush.h>
#include <asm/unified.h>
@@ -72,6 +73,9 @@ static void __init highbank_map_io(void)
void highbank_set_cpu_jump(int cpu, void *jump_addr)
{
#ifdef CONFIG_SMP
cpu = cpu_logical_map(cpu);
#endif
writel(BSYM(virt_to_phys(jump_addr)), HB_JUMP_TABLE_VIRT(cpu));
__cpuc_flush_dcache_area(HB_JUMP_TABLE_VIRT(cpu), 16);
outer_clean_range(HB_JUMP_TABLE_PHYS(cpu),

View File

@@ -10,11 +10,6 @@ config HAVE_IMX_MMDC
config HAVE_IMX_SRC
bool
#
# ARCH_MX31 and ARCH_MX35 are left for compatibility
# Some usages assume that having one of them implies not having (e.g.) ARCH_MX2.
# To easily distinguish good and reviewed from unreviewed usages new (and IMHO
# more sensible) names are used: SOC_IMX31 and SOC_IMX35
config ARCH_MX1
bool
@@ -27,12 +22,6 @@ config ARCH_MX25
config MACH_MX27
bool
config ARCH_MX31
bool
config ARCH_MX35
bool
config SOC_IMX1
bool
select ARCH_MX1
@@ -72,7 +61,6 @@ config SOC_IMX31
select CPU_V6
select IMX_HAVE_PLATFORM_MXC_RNGA
select ARCH_MXC_AUDMUX_V2
select ARCH_MX31
select MXC_AVIC
select SMP_ON_UP if SMP
@@ -82,7 +70,6 @@ config SOC_IMX35
select ARCH_MXC_IOMUX_V3
select ARCH_MXC_AUDMUX_V2
select HAVE_EPIT
select ARCH_MX35
select MXC_AVIC
select SMP_ON_UP if SMP

View File

@@ -1953,14 +1953,17 @@ static struct map_desc imx6q_clock_desc[] = {
imx_map_entry(MX6Q, ANATOP, MT_DEVICE),
};
void __init imx6q_clock_map_io(void)
{
iotable_init(imx6q_clock_desc, ARRAY_SIZE(imx6q_clock_desc));
}
int __init mx6q_clocks_init(void)
{
struct device_node *np;
void __iomem *base;
int i, irq;
iotable_init(imx6q_clock_desc, ARRAY_SIZE(imx6q_clock_desc));
/* retrieve the freqency of fixed clocks from device tree */
for_each_compatible_node(np, NULL, "fixed-clock") {
u32 rate;

View File

@@ -34,6 +34,7 @@ static void __init imx6q_map_io(void)
{
imx_lluart_map_io();
imx_scu_map_io();
imx6q_clock_map_io();
}
static void __init imx6q_gpio_add_irq_domain(struct device_node *np,

View File

@@ -33,29 +33,32 @@
static void imx3_idle(void)
{
unsigned long reg = 0;
__asm__ __volatile__(
/* disable I and D cache */
"mrc p15, 0, %0, c1, c0, 0\n"
"bic %0, %0, #0x00001000\n"
"bic %0, %0, #0x00000004\n"
"mcr p15, 0, %0, c1, c0, 0\n"
/* invalidate I cache */
"mov %0, #0\n"
"mcr p15, 0, %0, c7, c5, 0\n"
/* clear and invalidate D cache */
"mov %0, #0\n"
"mcr p15, 0, %0, c7, c14, 0\n"
/* WFI */
"mov %0, #0\n"
"mcr p15, 0, %0, c7, c0, 4\n"
"nop\n" "nop\n" "nop\n" "nop\n"
"nop\n" "nop\n" "nop\n"
/* enable I and D cache */
"mrc p15, 0, %0, c1, c0, 0\n"
"orr %0, %0, #0x00001000\n"
"orr %0, %0, #0x00000004\n"
"mcr p15, 0, %0, c1, c0, 0\n"
: "=r" (reg));
if (!need_resched())
__asm__ __volatile__(
/* disable I and D cache */
"mrc p15, 0, %0, c1, c0, 0\n"
"bic %0, %0, #0x00001000\n"
"bic %0, %0, #0x00000004\n"
"mcr p15, 0, %0, c1, c0, 0\n"
/* invalidate I cache */
"mov %0, #0\n"
"mcr p15, 0, %0, c7, c5, 0\n"
/* clear and invalidate D cache */
"mov %0, #0\n"
"mcr p15, 0, %0, c7, c14, 0\n"
/* WFI */
"mov %0, #0\n"
"mcr p15, 0, %0, c7, c0, 4\n"
"nop\n" "nop\n" "nop\n" "nop\n"
"nop\n" "nop\n" "nop\n"
/* enable I and D cache */
"mrc p15, 0, %0, c1, c0, 0\n"
"orr %0, %0, #0x00001000\n"
"orr %0, %0, #0x00000004\n"
"mcr p15, 0, %0, c1, c0, 0\n"
: "=r" (reg));
local_irq_enable();
}
static void __iomem *imx3_ioremap(unsigned long phys_addr, size_t size,
@@ -108,6 +111,7 @@ void imx3_init_l2x0(void)
l2x0_init(l2x0_base, 0x00030024, 0x00000000);
}
#ifdef CONFIG_SOC_IMX31
static struct map_desc mx31_io_desc[] __initdata = {
imx_map_entry(MX31, X_MEMC, MT_DEVICE),
imx_map_entry(MX31, AVIC, MT_DEVICE_NONSHARED),
@@ -126,33 +130,11 @@ void __init mx31_map_io(void)
iotable_init(mx31_io_desc, ARRAY_SIZE(mx31_io_desc));
}
static struct map_desc mx35_io_desc[] __initdata = {
imx_map_entry(MX35, X_MEMC, MT_DEVICE),
imx_map_entry(MX35, AVIC, MT_DEVICE_NONSHARED),
imx_map_entry(MX35, AIPS1, MT_DEVICE_NONSHARED),
imx_map_entry(MX35, AIPS2, MT_DEVICE_NONSHARED),
imx_map_entry(MX35, SPBA0, MT_DEVICE_NONSHARED),
};
void __init mx35_map_io(void)
{
iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc));
}
void __init imx31_init_early(void)
{
mxc_set_cpu_type(MXC_CPU_MX31);
mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
imx_idle = imx3_idle;
imx_ioremap = imx3_ioremap;
}
void __init imx35_init_early(void)
{
mxc_set_cpu_type(MXC_CPU_MX35);
mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR));
mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR));
imx_idle = imx3_idle;
pm_idle = imx3_idle;
imx_ioremap = imx3_ioremap;
}
@@ -161,11 +143,6 @@ void __init mx31_init_irq(void)
mxc_init_irq(MX31_IO_ADDRESS(MX31_AVIC_BASE_ADDR));
}
void __init mx35_init_irq(void)
{
mxc_init_irq(MX35_IO_ADDRESS(MX35_AVIC_BASE_ADDR));
}
static struct sdma_script_start_addrs imx31_to1_sdma_script __initdata = {
.per_2_per_addr = 1677,
};
@@ -199,6 +176,35 @@ void __init imx31_soc_init(void)
imx_add_imx_sdma("imx31-sdma", MX31_SDMA_BASE_ADDR, MX31_INT_SDMA, &imx31_sdma_pdata);
}
#endif /* ifdef CONFIG_SOC_IMX31 */
#ifdef CONFIG_SOC_IMX35
static struct map_desc mx35_io_desc[] __initdata = {
imx_map_entry(MX35, X_MEMC, MT_DEVICE),
imx_map_entry(MX35, AVIC, MT_DEVICE_NONSHARED),
imx_map_entry(MX35, AIPS1, MT_DEVICE_NONSHARED),
imx_map_entry(MX35, AIPS2, MT_DEVICE_NONSHARED),
imx_map_entry(MX35, SPBA0, MT_DEVICE_NONSHARED),
};
void __init mx35_map_io(void)
{
iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc));
}
void __init imx35_init_early(void)
{
mxc_set_cpu_type(MXC_CPU_MX35);
mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR));
mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR));
pm_idle = imx3_idle;
imx_ioremap = imx3_ioremap;
}
void __init mx35_init_irq(void)
{
mxc_init_irq(MX35_IO_ADDRESS(MX35_AVIC_BASE_ADDR));
}
static struct sdma_script_start_addrs imx35_to1_sdma_script __initdata = {
.ap_2_ap_addr = 642,
@@ -254,3 +260,4 @@ void __init imx35_soc_init(void)
imx_add_imx_sdma("imx35-sdma", MX35_SDMA_BASE_ADDR, MX35_INT_SDMA, &imx35_sdma_pdata);
}
#endif /* ifdef CONFIG_SOC_IMX35 */

View File

@@ -14,6 +14,7 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/smp.h>
#include <asm/unified.h>
#define SRC_SCR 0x000
@@ -23,10 +24,15 @@
static void __iomem *src_base;
#ifndef CONFIG_SMP
#define cpu_logical_map(cpu) 0
#endif
void imx_enable_cpu(int cpu, bool enable)
{
u32 mask, val;
cpu = cpu_logical_map(cpu);
mask = 1 << (BP_SRC_SCR_CORE1_ENABLE + cpu - 1);
val = readl_relaxed(src_base + SRC_SCR);
val = enable ? val | mask : val & ~mask;
@@ -35,6 +41,7 @@ void imx_enable_cpu(int cpu, bool enable)
void imx_set_cpu_jump(int cpu, void *jump_addr)
{
cpu = cpu_logical_map(cpu);
writel_relaxed(BSYM(virt_to_phys(jump_addr)),
src_base + SRC_GPR1 + cpu * 8);
}

View File

@@ -182,7 +182,7 @@ static void __init gplugd_init(void)
/* on-chip devices */
pxa168_add_uart(3);
pxa168_add_ssp(0);
pxa168_add_ssp(1);
pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
pxa168_add_eth(&gplugd_eth_platform_data);

View File

@@ -7,7 +7,7 @@
#define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000)
#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
#define GPIO_REG(x) (GPIO_REGS_VIRT + (x))
#define GPIO_REG(x) (*(volatile u32 *)(GPIO_REGS_VIRT + (x)))
#define NR_BUILTIN_GPIO IRQ_GPIO_NUM

View File

@@ -16,7 +16,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <mach/hardware.h>
#include <asm/io.h>
#include <linux/io.h>
static int mx5_cpu_rev = -1;
@@ -67,7 +67,8 @@ static int __init mx51_neon_fixup(void)
if (!cpu_is_mx51())
return 0;
if (mx51_revision() < IMX_CHIP_REVISION_3_0 && (elf_hwcap & HWCAP_NEON)) {
if (mx51_revision() < IMX_CHIP_REVISION_3_0 &&
(elf_hwcap & HWCAP_NEON)) {
elf_hwcap &= ~HWCAP_NEON;
pr_info("Turning off NEON support, detected broken NEON implementation\n");
}

View File

@@ -23,7 +23,9 @@
static void imx5_idle(void)
{
mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
if (!need_resched())
mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
local_irq_enable();
}
/*
@@ -89,7 +91,7 @@ void __init imx51_init_early(void)
mxc_set_cpu_type(MXC_CPU_MX51);
mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR));
mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG1_BASE_ADDR));
imx_idle = imx5_idle;
pm_idle = imx5_idle;
}
void __init imx53_init_early(void)

View File

@@ -404,7 +404,7 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \
reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_##dr); \
reg &= ~BM_CLKCTRL_##dr##_DIV; \
reg |= div << BP_CLKCTRL_##dr##_DIV; \
if (reg | (1 << clk->enable_shift)) { \
if (reg & (1 << clk->enable_shift)) { \
pr_err("%s: clock is gated\n", __func__); \
return -EINVAL; \
} \

View File

@@ -171,14 +171,6 @@ config MACH_OMAP_GENERIC
comment "OMAP CPU Speed"
depends on ARCH_OMAP1
config OMAP_CLOCKS_SET_BY_BOOTLOADER
bool "OMAP clocks set by bootloader"
depends on ARCH_OMAP1
help
Enable this option to prevent the kernel from overriding the clock
frequencies programmed by bootloader for MPU, DSP, MMUs, TC,
internal LCD controller and MPU peripherals.
config OMAP_ARM_216MHZ
bool "OMAP ARM 216 MHz CPU (1710 only)"
depends on ARCH_OMAP1 && ARCH_OMAP16XX

View File

@@ -302,8 +302,6 @@ static void __init ams_delta_init(void)
omap_cfg_reg(J19_1610_CAM_D6);
omap_cfg_reg(J18_1610_CAM_D7);
iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
omap_board_config = ams_delta_config;
omap_board_config_size = ARRAY_SIZE(ams_delta_config);
omap_serial_init();
@@ -373,10 +371,16 @@ static int __init ams_delta_modem_init(void)
}
arch_initcall(ams_delta_modem_init);
static void __init ams_delta_map_io(void)
{
omap15xx_map_io();
iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
}
MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
/* Maintainer: Jonathan McDowell <noodles@earth.li> */
.atag_offset = 0x100,
.map_io = omap15xx_map_io,
.map_io = ams_delta_map_io,
.init_early = omap1_init_early,
.reserve = omap_reserve,
.init_irq = omap1_init_irq,

View File

@@ -17,7 +17,8 @@
#include <plat/clock.h>
extern int __init omap1_clk_init(void);
int omap1_clk_init(void);
void omap1_clk_late_init(void);
extern int omap1_clk_enable(struct clk *clk);
extern void omap1_clk_disable(struct clk *clk);
extern long omap1_clk_round_rate(struct clk *clk, unsigned long rate);

View File

@@ -767,6 +767,15 @@ static struct clk_functions omap1_clk_functions = {
.clk_disable_unused = omap1_clk_disable_unused,
};
static void __init omap1_show_rates(void)
{
pr_notice("Clocking rate (xtal/DPLL1/MPU): "
"%ld.%01ld/%ld.%01ld/%ld.%01ld MHz\n",
ck_ref.rate / 1000000, (ck_ref.rate / 100000) % 10,
ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10,
arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);
}
int __init omap1_clk_init(void)
{
struct omap_clk *c;
@@ -835,9 +844,12 @@ int __init omap1_clk_init(void)
/* We want to be in syncronous scalable mode */
omap_writew(0x1000, ARM_SYSST);
#ifdef CONFIG_OMAP_CLOCKS_SET_BY_BOOTLOADER
/* Use values set by bootloader. Determine PLL rate and recalculate
* dependent clocks as if kernel had changed PLL or divisors.
/*
* Initially use the values set by bootloader. Determine PLL rate and
* recalculate dependent clocks as if kernel had changed PLL or
* divisors. See also omap1_clk_late_init() that can reprogram dpll1
* after the SRAM is initialized.
*/
{
unsigned pll_ctl_val = omap_readw(DPLL_CTL);
@@ -862,25 +874,10 @@ int __init omap1_clk_init(void)
}
}
}
#else
/* Find the highest supported frequency and enable it */
if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) {
printk(KERN_ERR "System frequencies not set. Check your config.\n");
/* Guess sane values (60MHz) */
omap_writew(0x2290, DPLL_CTL);
omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL);
ck_dpll1.rate = 60000000;
}
#endif
propagate_rate(&ck_dpll1);
/* Cache rates for clocks connected to ck_ref (not dpll1) */
propagate_rate(&ck_ref);
printk(KERN_INFO "Clocking rate (xtal/DPLL1/MPU): "
"%ld.%01ld/%ld.%01ld/%ld.%01ld MHz\n",
ck_ref.rate / 1000000, (ck_ref.rate / 100000) % 10,
ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10,
arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);
omap1_show_rates();
if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
/* Select slicer output as OMAP input clock */
omap_writew(omap_readw(OMAP7XX_PCC_UPLD_CTRL) & ~0x1,
@@ -925,3 +922,21 @@ int __init omap1_clk_init(void)
return 0;
}
#define OMAP1_DPLL1_SANE_VALUE 60000000
void __init omap1_clk_late_init(void)
{
if (ck_dpll1.rate >= OMAP1_DPLL1_SANE_VALUE)
return;
/* Find the highest supported frequency and enable it */
if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) {
pr_err("System frequencies not set, using default. Check your config.\n");
omap_writew(0x2290, DPLL_CTL);
omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL);
ck_dpll1.rate = OMAP1_DPLL1_SANE_VALUE;
}
propagate_rate(&ck_dpll1);
omap1_show_rates();
}

View File

@@ -30,6 +30,8 @@
#include <plat/omap7xx.h>
#include <plat/mcbsp.h>
#include "clock.h"
/*-------------------------------------------------------------------------*/
#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
@@ -293,6 +295,7 @@ static int __init omap1_init_devices(void)
return -ENODEV;
omap_sram_init();
omap1_clk_late_init();
/* please keep these calls, and their implementations above,
* in alphabetical order so they're easier to sort through.

View File

@@ -334,6 +334,7 @@ config MACH_OMAP4_PANDA
config OMAP3_EMU
bool "OMAP3 debugging peripherals"
depends on ARCH_OMAP3
select ARM_AMBA
select OC_ETM
help
Say Y here to enable debugging hardware of omap3

View File

@@ -4,7 +4,7 @@
# Common support
obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer.o pm.o \
common.o gpio.o dma.o wd_timer.o
common.o gpio.o dma.o wd_timer.o display.o
omap-2-3-common = irq.o sdrc.o
hwmod-common = omap_hwmod.o \
@@ -264,7 +264,4 @@ smsc911x-$(CONFIG_SMSC911X) := gpmc-smsc911x.o
obj-y += $(smsc911x-m) $(smsc911x-y)
obj-$(CONFIG_ARCH_OMAP4) += hwspinlock.o
disp-$(CONFIG_OMAP2_DSS) := display.o
obj-y += $(disp-m) $(disp-y)
obj-y += common-board-devices.o twl-common.o

View File

@@ -24,6 +24,7 @@
#include <linux/sched.h>
#include <linux/cpuidle.h>
#include <linux/export.h>
#include <plat/prcm.h>
#include <plat/irqs.h>

View File

@@ -27,8 +27,35 @@
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
#include <plat/omap-pm.h>
#include <plat/common.h>
#include "control.h"
#include "display.h"
#define DISPC_CONTROL 0x0040
#define DISPC_CONTROL2 0x0238
#define DISPC_IRQSTATUS 0x0018
#define DSS_SYSCONFIG 0x10
#define DSS_SYSSTATUS 0x14
#define DSS_CONTROL 0x40
#define DSS_SDI_CONTROL 0x44
#define DSS_PLL_CONTROL 0x48
#define LCD_EN_MASK (0x1 << 0)
#define DIGIT_EN_MASK (0x1 << 1)
#define FRAMEDONE_IRQ_SHIFT 0
#define EVSYNC_EVEN_IRQ_SHIFT 2
#define EVSYNC_ODD_IRQ_SHIFT 3
#define FRAMEDONE2_IRQ_SHIFT 22
#define FRAMEDONETV_IRQ_SHIFT 24
/*
* FRAMEDONE_IRQ_TIMEOUT: how long (in milliseconds) to wait during DISPC
* reset before deciding that something has gone wrong
*/
#define FRAMEDONE_IRQ_TIMEOUT 100
static struct platform_device omap_display_device = {
.name = "omapdss",
@@ -172,3 +199,135 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
return r;
}
static void dispc_disable_outputs(void)
{
u32 v, irq_mask = 0;
bool lcd_en, digit_en, lcd2_en = false;
int i;
struct omap_dss_dispc_dev_attr *da;
struct omap_hwmod *oh;
oh = omap_hwmod_lookup("dss_dispc");
if (!oh) {
WARN(1, "display: could not disable outputs during reset - could not find dss_dispc hwmod\n");
return;
}
if (!oh->dev_attr) {
pr_err("display: could not disable outputs during reset due to missing dev_attr\n");
return;
}
da = (struct omap_dss_dispc_dev_attr *)oh->dev_attr;
/* store value of LCDENABLE and DIGITENABLE bits */
v = omap_hwmod_read(oh, DISPC_CONTROL);
lcd_en = v & LCD_EN_MASK;
digit_en = v & DIGIT_EN_MASK;
/* store value of LCDENABLE for LCD2 */
if (da->manager_count > 2) {
v = omap_hwmod_read(oh, DISPC_CONTROL2);
lcd2_en = v & LCD_EN_MASK;
}
if (!(lcd_en | digit_en | lcd2_en))
return; /* no managers currently enabled */
/*
* If any manager was enabled, we need to disable it before
* DSS clocks are disabled or DISPC module is reset
*/
if (lcd_en)
irq_mask |= 1 << FRAMEDONE_IRQ_SHIFT;
if (digit_en) {
if (da->has_framedonetv_irq) {
irq_mask |= 1 << FRAMEDONETV_IRQ_SHIFT;
} else {
irq_mask |= 1 << EVSYNC_EVEN_IRQ_SHIFT |
1 << EVSYNC_ODD_IRQ_SHIFT;
}
}
if (lcd2_en)
irq_mask |= 1 << FRAMEDONE2_IRQ_SHIFT;
/*
* clear any previous FRAMEDONE, FRAMEDONETV,
* EVSYNC_EVEN/ODD or FRAMEDONE2 interrupts
*/
omap_hwmod_write(irq_mask, oh, DISPC_IRQSTATUS);
/* disable LCD and TV managers */
v = omap_hwmod_read(oh, DISPC_CONTROL);
v &= ~(LCD_EN_MASK | DIGIT_EN_MASK);
omap_hwmod_write(v, oh, DISPC_CONTROL);
/* disable LCD2 manager */
if (da->manager_count > 2) {
v = omap_hwmod_read(oh, DISPC_CONTROL2);
v &= ~LCD_EN_MASK;
omap_hwmod_write(v, oh, DISPC_CONTROL2);
}
i = 0;
while ((omap_hwmod_read(oh, DISPC_IRQSTATUS) & irq_mask) !=
irq_mask) {
i++;
if (i > FRAMEDONE_IRQ_TIMEOUT) {
pr_err("didn't get FRAMEDONE1/2 or TV interrupt\n");
break;
}
mdelay(1);
}
}
#define MAX_MODULE_SOFTRESET_WAIT 10000
int omap_dss_reset(struct omap_hwmod *oh)
{
struct omap_hwmod_opt_clk *oc;
int c = 0;
int i, r;
if (!(oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS)) {
pr_err("dss_core: hwmod data doesn't contain reset data\n");
return -EINVAL;
}
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
if (oc->_clk)
clk_enable(oc->_clk);
dispc_disable_outputs();
/* clear SDI registers */
if (cpu_is_omap3430()) {
omap_hwmod_write(0x0, oh, DSS_SDI_CONTROL);
omap_hwmod_write(0x0, oh, DSS_PLL_CONTROL);
}
/*
* clear DSS_CONTROL register to switch DSS clock sources to
* PRCM clock, if any
*/
omap_hwmod_write(0x0, oh, DSS_CONTROL);
omap_test_timeout((omap_hwmod_read(oh, oh->class->sysc->syss_offs)
& SYSS_RESETDONE_MASK),
MAX_MODULE_SOFTRESET_WAIT, c);
if (c == MAX_MODULE_SOFTRESET_WAIT)
pr_warning("dss_core: waiting for reset to finish failed\n");
else
pr_debug("dss_core: softreset done\n");
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
if (oc->_clk)
clk_disable(oc->_clk);
r = (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT : 0;
return r;
}

View File

@@ -0,0 +1,29 @@
/*
* display.h - OMAP2+ integration-specific DSS header
*
* Copyright (C) 2011 Texas Instruments, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ARCH_ARM_MACH_OMAP2_DISPLAY_H
#define __ARCH_ARM_MACH_OMAP2_DISPLAY_H
#include <linux/kernel.h>
struct omap_dss_dispc_dev_attr {
u8 manager_count;
bool has_framedonetv_irq;
};
#endif

View File

@@ -749,7 +749,7 @@ static int _count_mpu_irqs(struct omap_hwmod *oh)
ohii = &oh->mpu_irqs[i++];
} while (ohii->irq != -1);
return i;
return i-1;
}
/**
@@ -772,7 +772,7 @@ static int _count_sdma_reqs(struct omap_hwmod *oh)
ohdi = &oh->sdma_reqs[i++];
} while (ohdi->dma_req != -1);
return i;
return i-1;
}
/**
@@ -795,7 +795,7 @@ static int _count_ocp_if_addr_spaces(struct omap_hwmod_ocp_if *os)
mem = &os->addr[i++];
} while (mem->pa_start != mem->pa_end);
return i;
return i-1;
}
/**

View File

@@ -875,6 +875,10 @@ static struct omap_hwmod_ocp_if *omap2420_dss_slaves[] = {
};
static struct omap_hwmod_opt_clk dss_opt_clks[] = {
/*
* The DSS HW needs all DSS clocks enabled during reset. The dss_core
* driver does not use these clocks.
*/
{ .role = "tv_clk", .clk = "dss_54m_fck" },
{ .role = "sys_clk", .clk = "dss2_fck" },
};
@@ -899,7 +903,7 @@ static struct omap_hwmod omap2420_dss_core_hwmod = {
.slaves_cnt = ARRAY_SIZE(omap2420_dss_slaves),
.masters = omap2420_dss_masters,
.masters_cnt = ARRAY_SIZE(omap2420_dss_masters),
.flags = HWMOD_NO_IDLEST,
.flags = HWMOD_NO_IDLEST | HWMOD_CONTROL_OPT_CLKS_IN_RESET,
};
/* l4_core -> dss_dispc */
@@ -939,6 +943,7 @@ static struct omap_hwmod omap2420_dss_dispc_hwmod = {
.slaves = omap2420_dss_dispc_slaves,
.slaves_cnt = ARRAY_SIZE(omap2420_dss_dispc_slaves),
.flags = HWMOD_NO_IDLEST,
.dev_attr = &omap2_3_dss_dispc_dev_attr
};
/* l4_core -> dss_rfbi */
@@ -961,6 +966,10 @@ static struct omap_hwmod_ocp_if *omap2420_dss_rfbi_slaves[] = {
&omap2420_l4_core__dss_rfbi,
};
static struct omap_hwmod_opt_clk dss_rfbi_opt_clks[] = {
{ .role = "ick", .clk = "dss_ick" },
};
static struct omap_hwmod omap2420_dss_rfbi_hwmod = {
.name = "dss_rfbi",
.class = &omap2_rfbi_hwmod_class,
@@ -972,6 +981,8 @@ static struct omap_hwmod omap2420_dss_rfbi_hwmod = {
.module_offs = CORE_MOD,
},
},
.opt_clks = dss_rfbi_opt_clks,
.opt_clks_cnt = ARRAY_SIZE(dss_rfbi_opt_clks),
.slaves = omap2420_dss_rfbi_slaves,
.slaves_cnt = ARRAY_SIZE(omap2420_dss_rfbi_slaves),
.flags = HWMOD_NO_IDLEST,
@@ -981,7 +992,7 @@ static struct omap_hwmod omap2420_dss_rfbi_hwmod = {
static struct omap_hwmod_ocp_if omap2420_l4_core__dss_venc = {
.master = &omap2420_l4_core_hwmod,
.slave = &omap2420_dss_venc_hwmod,
.clk = "dss_54m_fck",
.clk = "dss_ick",
.addr = omap2_dss_venc_addrs,
.fw = {
.omap2 = {
@@ -1001,7 +1012,7 @@ static struct omap_hwmod_ocp_if *omap2420_dss_venc_slaves[] = {
static struct omap_hwmod omap2420_dss_venc_hwmod = {
.name = "dss_venc",
.class = &omap2_venc_hwmod_class,
.main_clk = "dss1_fck",
.main_clk = "dss_54m_fck",
.prcm = {
.omap2 = {
.prcm_reg_id = 1,

View File

@@ -942,6 +942,10 @@ static struct omap_hwmod_ocp_if *omap2430_dss_slaves[] = {
};
static struct omap_hwmod_opt_clk dss_opt_clks[] = {
/*
* The DSS HW needs all DSS clocks enabled during reset. The dss_core
* driver does not use these clocks.
*/
{ .role = "tv_clk", .clk = "dss_54m_fck" },
{ .role = "sys_clk", .clk = "dss2_fck" },
};
@@ -966,7 +970,7 @@ static struct omap_hwmod omap2430_dss_core_hwmod = {
.slaves_cnt = ARRAY_SIZE(omap2430_dss_slaves),
.masters = omap2430_dss_masters,
.masters_cnt = ARRAY_SIZE(omap2430_dss_masters),
.flags = HWMOD_NO_IDLEST,
.flags = HWMOD_NO_IDLEST | HWMOD_CONTROL_OPT_CLKS_IN_RESET,
};
/* l4_core -> dss_dispc */
@@ -1000,6 +1004,7 @@ static struct omap_hwmod omap2430_dss_dispc_hwmod = {
.slaves = omap2430_dss_dispc_slaves,
.slaves_cnt = ARRAY_SIZE(omap2430_dss_dispc_slaves),
.flags = HWMOD_NO_IDLEST,
.dev_attr = &omap2_3_dss_dispc_dev_attr
};
/* l4_core -> dss_rfbi */
@@ -1016,6 +1021,10 @@ static struct omap_hwmod_ocp_if *omap2430_dss_rfbi_slaves[] = {
&omap2430_l4_core__dss_rfbi,
};
static struct omap_hwmod_opt_clk dss_rfbi_opt_clks[] = {
{ .role = "ick", .clk = "dss_ick" },
};
static struct omap_hwmod omap2430_dss_rfbi_hwmod = {
.name = "dss_rfbi",
.class = &omap2_rfbi_hwmod_class,
@@ -1027,6 +1036,8 @@ static struct omap_hwmod omap2430_dss_rfbi_hwmod = {
.module_offs = CORE_MOD,
},
},
.opt_clks = dss_rfbi_opt_clks,
.opt_clks_cnt = ARRAY_SIZE(dss_rfbi_opt_clks),
.slaves = omap2430_dss_rfbi_slaves,
.slaves_cnt = ARRAY_SIZE(omap2430_dss_rfbi_slaves),
.flags = HWMOD_NO_IDLEST,
@@ -1036,7 +1047,7 @@ static struct omap_hwmod omap2430_dss_rfbi_hwmod = {
static struct omap_hwmod_ocp_if omap2430_l4_core__dss_venc = {
.master = &omap2430_l4_core_hwmod,
.slave = &omap2430_dss_venc_hwmod,
.clk = "dss_54m_fck",
.clk = "dss_ick",
.addr = omap2_dss_venc_addrs,
.flags = OCPIF_SWSUP_IDLE,
.user = OCP_USER_MPU | OCP_USER_SDMA,
@@ -1050,7 +1061,7 @@ static struct omap_hwmod_ocp_if *omap2430_dss_venc_slaves[] = {
static struct omap_hwmod omap2430_dss_venc_hwmod = {
.name = "dss_venc",
.class = &omap2_venc_hwmod_class,
.main_clk = "dss1_fck",
.main_clk = "dss_54m_fck",
.prcm = {
.omap2 = {
.prcm_reg_id = 1,

View File

@@ -11,6 +11,7 @@
#include <plat/omap_hwmod.h>
#include <plat/serial.h>
#include <plat/dma.h>
#include <plat/common.h>
#include <mach/irqs.h>
@@ -43,13 +44,15 @@ static struct omap_hwmod_class_sysconfig omap2_dss_sysc = {
.rev_offs = 0x0000,
.sysc_offs = 0x0010,
.syss_offs = 0x0014,
.sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE),
.sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
SYSS_HAS_RESET_STATUS),
.sysc_fields = &omap_hwmod_sysc_type1,
};
struct omap_hwmod_class omap2_dss_hwmod_class = {
.name = "dss",
.sysc = &omap2_dss_sysc,
.reset = omap_dss_reset,
};
/*

View File

@@ -1369,9 +1369,14 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_slaves[] = {
};
static struct omap_hwmod_opt_clk dss_opt_clks[] = {
{ .role = "tv_clk", .clk = "dss_tv_fck" },
{ .role = "video_clk", .clk = "dss_96m_fck" },
/*
* The DSS HW needs all DSS clocks enabled during reset. The dss_core
* driver does not use these clocks.
*/
{ .role = "sys_clk", .clk = "dss2_alwon_fck" },
{ .role = "tv_clk", .clk = "dss_tv_fck" },
/* required only on OMAP3430 */
{ .role = "tv_dac_clk", .clk = "dss_96m_fck" },
};
static struct omap_hwmod omap3430es1_dss_core_hwmod = {
@@ -1394,11 +1399,12 @@ static struct omap_hwmod omap3430es1_dss_core_hwmod = {
.slaves_cnt = ARRAY_SIZE(omap3430es1_dss_slaves),
.masters = omap3xxx_dss_masters,
.masters_cnt = ARRAY_SIZE(omap3xxx_dss_masters),
.flags = HWMOD_NO_IDLEST,
.flags = HWMOD_NO_IDLEST | HWMOD_CONTROL_OPT_CLKS_IN_RESET,
};
static struct omap_hwmod omap3xxx_dss_core_hwmod = {
.name = "dss_core",
.flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
.class = &omap2_dss_hwmod_class,
.main_clk = "dss1_alwon_fck", /* instead of dss_fck */
.sdma_reqs = omap3xxx_dss_sdma_chs,
@@ -1456,6 +1462,7 @@ static struct omap_hwmod omap3xxx_dss_dispc_hwmod = {
.slaves = omap3xxx_dss_dispc_slaves,
.slaves_cnt = ARRAY_SIZE(omap3xxx_dss_dispc_slaves),
.flags = HWMOD_NO_IDLEST,
.dev_attr = &omap2_3_dss_dispc_dev_attr
};
/*
@@ -1486,6 +1493,7 @@ static struct omap_hwmod_addr_space omap3xxx_dss_dsi1_addrs[] = {
static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_dsi1 = {
.master = &omap3xxx_l4_core_hwmod,
.slave = &omap3xxx_dss_dsi1_hwmod,
.clk = "dss_ick",
.addr = omap3xxx_dss_dsi1_addrs,
.fw = {
.omap2 = {
@@ -1502,6 +1510,10 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_dsi1_slaves[] = {
&omap3xxx_l4_core__dss_dsi1,
};
static struct omap_hwmod_opt_clk dss_dsi1_opt_clks[] = {
{ .role = "sys_clk", .clk = "dss2_alwon_fck" },
};
static struct omap_hwmod omap3xxx_dss_dsi1_hwmod = {
.name = "dss_dsi1",
.class = &omap3xxx_dsi_hwmod_class,
@@ -1514,6 +1526,8 @@ static struct omap_hwmod omap3xxx_dss_dsi1_hwmod = {
.module_offs = OMAP3430_DSS_MOD,
},
},
.opt_clks = dss_dsi1_opt_clks,
.opt_clks_cnt = ARRAY_SIZE(dss_dsi1_opt_clks),
.slaves = omap3xxx_dss_dsi1_slaves,
.slaves_cnt = ARRAY_SIZE(omap3xxx_dss_dsi1_slaves),
.flags = HWMOD_NO_IDLEST,
@@ -1540,6 +1554,10 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_rfbi_slaves[] = {
&omap3xxx_l4_core__dss_rfbi,
};
static struct omap_hwmod_opt_clk dss_rfbi_opt_clks[] = {
{ .role = "ick", .clk = "dss_ick" },
};
static struct omap_hwmod omap3xxx_dss_rfbi_hwmod = {
.name = "dss_rfbi",
.class = &omap2_rfbi_hwmod_class,
@@ -1551,6 +1569,8 @@ static struct omap_hwmod omap3xxx_dss_rfbi_hwmod = {
.module_offs = OMAP3430_DSS_MOD,
},
},
.opt_clks = dss_rfbi_opt_clks,
.opt_clks_cnt = ARRAY_SIZE(dss_rfbi_opt_clks),
.slaves = omap3xxx_dss_rfbi_slaves,
.slaves_cnt = ARRAY_SIZE(omap3xxx_dss_rfbi_slaves),
.flags = HWMOD_NO_IDLEST,
@@ -1560,7 +1580,7 @@ static struct omap_hwmod omap3xxx_dss_rfbi_hwmod = {
static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_venc = {
.master = &omap3xxx_l4_core_hwmod,
.slave = &omap3xxx_dss_venc_hwmod,
.clk = "dss_tv_fck",
.clk = "dss_ick",
.addr = omap2_dss_venc_addrs,
.fw = {
.omap2 = {
@@ -1578,10 +1598,15 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_venc_slaves[] = {
&omap3xxx_l4_core__dss_venc,
};
static struct omap_hwmod_opt_clk dss_venc_opt_clks[] = {
/* required only on OMAP3430 */
{ .role = "tv_dac_clk", .clk = "dss_96m_fck" },
};
static struct omap_hwmod omap3xxx_dss_venc_hwmod = {
.name = "dss_venc",
.class = &omap2_venc_hwmod_class,
.main_clk = "dss1_alwon_fck",
.main_clk = "dss_tv_fck",
.prcm = {
.omap2 = {
.prcm_reg_id = 1,
@@ -1589,6 +1614,8 @@ static struct omap_hwmod omap3xxx_dss_venc_hwmod = {
.module_offs = OMAP3430_DSS_MOD,
},
},
.opt_clks = dss_venc_opt_clks,
.opt_clks_cnt = ARRAY_SIZE(dss_venc_opt_clks),
.slaves = omap3xxx_dss_venc_slaves,
.slaves_cnt = ARRAY_SIZE(omap3xxx_dss_venc_slaves),
.flags = HWMOD_NO_IDLEST,

View File

@@ -30,6 +30,7 @@
#include <plat/mmc.h>
#include <plat/i2c.h>
#include <plat/dmtimer.h>
#include <plat/common.h>
#include "omap_hwmod_common_data.h"
@@ -1187,6 +1188,7 @@ static struct omap_hwmod_class_sysconfig omap44xx_dss_sysc = {
static struct omap_hwmod_class omap44xx_dss_hwmod_class = {
.name = "dss",
.sysc = &omap44xx_dss_sysc,
.reset = omap_dss_reset,
};
/* dss */
@@ -1240,12 +1242,12 @@ static struct omap_hwmod_ocp_if *omap44xx_dss_slaves[] = {
static struct omap_hwmod_opt_clk dss_opt_clks[] = {
{ .role = "sys_clk", .clk = "dss_sys_clk" },
{ .role = "tv_clk", .clk = "dss_tv_clk" },
{ .role = "dss_clk", .clk = "dss_dss_clk" },
{ .role = "video_clk", .clk = "dss_48mhz_clk" },
{ .role = "hdmi_clk", .clk = "dss_48mhz_clk" },
};
static struct omap_hwmod omap44xx_dss_hwmod = {
.name = "dss_core",
.flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
.class = &omap44xx_dss_hwmod_class,
.clkdm_name = "l3_dss_clkdm",
.main_clk = "dss_dss_clk",
@@ -1325,6 +1327,11 @@ static struct omap_hwmod_addr_space omap44xx_dss_dispc_addrs[] = {
{ }
};
static struct omap_dss_dispc_dev_attr omap44xx_dss_dispc_dev_attr = {
.manager_count = 3,
.has_framedonetv_irq = 1
};
/* l4_per -> dss_dispc */
static struct omap_hwmod_ocp_if omap44xx_l4_per__dss_dispc = {
.master = &omap44xx_l4_per_hwmod,
@@ -1340,12 +1347,6 @@ static struct omap_hwmod_ocp_if *omap44xx_dss_dispc_slaves[] = {
&omap44xx_l4_per__dss_dispc,
};
static struct omap_hwmod_opt_clk dss_dispc_opt_clks[] = {
{ .role = "sys_clk", .clk = "dss_sys_clk" },
{ .role = "tv_clk", .clk = "dss_tv_clk" },
{ .role = "hdmi_clk", .clk = "dss_48mhz_clk" },
};
static struct omap_hwmod omap44xx_dss_dispc_hwmod = {
.name = "dss_dispc",
.class = &omap44xx_dispc_hwmod_class,
@@ -1359,10 +1360,9 @@ static struct omap_hwmod omap44xx_dss_dispc_hwmod = {
.context_offs = OMAP4_RM_DSS_DSS_CONTEXT_OFFSET,
},
},
.opt_clks = dss_dispc_opt_clks,
.opt_clks_cnt = ARRAY_SIZE(dss_dispc_opt_clks),
.slaves = omap44xx_dss_dispc_slaves,
.slaves_cnt = ARRAY_SIZE(omap44xx_dss_dispc_slaves),
.dev_attr = &omap44xx_dss_dispc_dev_attr
};
/*
@@ -1624,7 +1624,7 @@ static struct omap_hwmod omap44xx_dss_hdmi_hwmod = {
.clkdm_name = "l3_dss_clkdm",
.mpu_irqs = omap44xx_dss_hdmi_irqs,
.sdma_reqs = omap44xx_dss_hdmi_sdma_reqs,
.main_clk = "dss_dss_clk",
.main_clk = "dss_48mhz_clk",
.prcm = {
.omap4 = {
.clkctrl_offs = OMAP4_CM_DSS_DSS_CLKCTRL_OFFSET,
@@ -1785,7 +1785,7 @@ static struct omap_hwmod omap44xx_dss_venc_hwmod = {
.name = "dss_venc",
.class = &omap44xx_venc_hwmod_class,
.clkdm_name = "l3_dss_clkdm",
.main_clk = "dss_dss_clk",
.main_clk = "dss_tv_clk",
.prcm = {
.omap4 = {
.clkctrl_offs = OMAP4_CM_DSS_DSS_CLKCTRL_OFFSET,

View File

@@ -49,3 +49,7 @@ struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2 = {
.srst_shift = SYSC_TYPE2_SOFTRESET_SHIFT,
};
struct omap_dss_dispc_dev_attr omap2_3_dss_dispc_dev_attr = {
.manager_count = 2,
.has_framedonetv_irq = 0
};

View File

@@ -16,6 +16,8 @@
#include <plat/omap_hwmod.h>
#include "display.h"
/* Common address space across OMAP2xxx */
extern struct omap_hwmod_addr_space omap2xxx_uart1_addr_space[];
extern struct omap_hwmod_addr_space omap2xxx_uart2_addr_space[];
@@ -111,4 +113,6 @@ extern struct omap_hwmod_class omap2xxx_dma_hwmod_class;
extern struct omap_hwmod_class omap2xxx_mailbox_hwmod_class;
extern struct omap_hwmod_class omap2xxx_mcspi_class;
extern struct omap_dss_dispc_dev_attr omap2_3_dss_dispc_dev_attr;
#endif

View File

@@ -237,7 +237,7 @@ static int __devexit omap4_l3_remove(struct platform_device *pdev)
static const struct of_device_id l3_noc_match[] = {
{.compatible = "ti,omap4-l3-noc", },
{},
}
};
MODULE_DEVICE_TABLE(of, l3_noc_match);
#else
#define l3_noc_match NULL

View File

@@ -24,6 +24,7 @@
#include "powerdomain.h"
#include "clockdomain.h"
#include "pm.h"
#include "twl-common.h"
static struct omap_device_pm_latency *pm_lats;
@@ -226,11 +227,8 @@ postcore_initcall(omap2_common_pm_init);
static int __init omap2_common_pm_late_init(void)
{
/* Init the OMAP TWL parameters */
omap3_twl_init();
omap4_twl_init();
/* Init the voltage layer */
omap_pmic_late_init();
omap_voltage_late_init();
/* Initialize the voltages */

View File

@@ -139,7 +139,7 @@ static irqreturn_t sr_interrupt(int irq, void *data)
sr_write_reg(sr_info, ERRCONFIG_V1, status);
} else if (sr_info->ip_type == SR_TYPE_V2) {
/* Read the status bits */
sr_read_reg(sr_info, IRQSTATUS);
status = sr_read_reg(sr_info, IRQSTATUS);
/* Clear them by writing back */
sr_write_reg(sr_info, IRQSTATUS, status);

View File

@@ -30,6 +30,7 @@
#include <plat/usb.h>
#include "twl-common.h"
#include "pm.h"
static struct i2c_board_info __initdata pmic_i2c_board_info = {
.addr = 0x48,
@@ -48,6 +49,16 @@ void __init omap_pmic_init(int bus, u32 clkrate,
omap_register_i2c_bus(bus, clkrate, &pmic_i2c_board_info, 1);
}
void __init omap_pmic_late_init(void)
{
/* Init the OMAP TWL parameters (if PMIC has been registerd) */
if (!pmic_i2c_board_info.irq)
return;
omap3_twl_init();
omap4_twl_init();
}
#if defined(CONFIG_ARCH_OMAP3)
static struct twl4030_usb_data omap3_usb_pdata = {
.usb_mode = T2_USB_MODE_ULPI,

View File

@@ -1,6 +1,8 @@
#ifndef __OMAP_PMIC_COMMON__
#define __OMAP_PMIC_COMMON__
#include <plat/irqs.h>
#define TWL_COMMON_PDATA_USB (1 << 0)
#define TWL_COMMON_PDATA_BCI (1 << 1)
#define TWL_COMMON_PDATA_MADC (1 << 2)
@@ -30,6 +32,7 @@ struct twl4030_platform_data;
void omap_pmic_init(int bus, u32 clkrate, const char *pmic_type, int pmic_irq,
struct twl4030_platform_data *pmic_data);
void omap_pmic_late_init(void);
static inline void omap2_pmic_init(const char *pmic_type,
struct twl4030_platform_data *pmic_data)

View File

@@ -307,7 +307,7 @@ static inline void balloon3_mmc_init(void) {}
/******************************************************************************
* USB Gadget
******************************************************************************/
#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE)
#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
static void balloon3_udc_command(int cmd)
{
if (cmd == PXA2XX_UDC_CMD_CONNECT)

View File

@@ -146,7 +146,7 @@ static void __init colibri_pxa320_init_eth(void)
static inline void __init colibri_pxa320_init_eth(void) {}
#endif /* CONFIG_AX88796 */
#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE)
#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = {
.gpio_vbus = mfp_to_gpio(MFP_PIN_GPIO96),
.gpio_pullup = -1,

View File

@@ -106,7 +106,7 @@ static void __init gumstix_mmc_init(void)
}
#endif
#ifdef CONFIG_USB_GADGET_PXA25X
#ifdef CONFIG_USB_PXA25X
static struct gpio_vbus_mach_info gumstix_udc_info = {
.gpio_vbus = GPIO_GUMSTIX_USB_GPIOn,
.gpio_pullup = GPIO_GUMSTIX_USB_GPIOx,

View File

@@ -37,8 +37,8 @@ extern void __init palm27x_lcd_init(int power,
#define palm27x_lcd_init(power, mode) do {} while (0)
#endif
#if defined(CONFIG_USB_GADGET_PXA27X) || \
defined(CONFIG_USB_GADGET_PXA27X_MODULE)
#if defined(CONFIG_USB_PXA27X) || \
defined(CONFIG_USB_PXA27X_MODULE)
extern void __init palm27x_udc_init(int vbus, int pullup,
int vbus_inverted);
#else

View File

@@ -164,8 +164,8 @@ void __init palm27x_lcd_init(int power, struct pxafb_mode_info *mode)
/******************************************************************************
* USB Gadget
******************************************************************************/
#if defined(CONFIG_USB_GADGET_PXA27X) || \
defined(CONFIG_USB_GADGET_PXA27X_MODULE)
#if defined(CONFIG_USB_PXA27X) || \
defined(CONFIG_USB_PXA27X_MODULE)
static struct gpio_vbus_mach_info palm27x_udc_info = {
.gpio_vbus_inverted = 1,
};

View File

@@ -338,7 +338,7 @@ static inline void palmtc_mkp_init(void) {}
/******************************************************************************
* UDC
******************************************************************************/
#if defined(CONFIG_USB_GADGET_PXA25X)||defined(CONFIG_USB_GADGET_PXA25X_MODULE)
#if defined(CONFIG_USB_PXA25X)||defined(CONFIG_USB_PXA25X_MODULE)
static struct gpio_vbus_mach_info palmtc_udc_info = {
.gpio_vbus = GPIO_NR_PALMTC_USB_DETECT_N,
.gpio_vbus_inverted = 1,

View File

@@ -343,7 +343,7 @@ static inline void vpac270_uhc_init(void) {}
/******************************************************************************
* USB Gadget
******************************************************************************/
#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE)
#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
static struct gpio_vbus_mach_info vpac270_gpio_vbus_info = {
.gpio_vbus = GPIO41_VPAC270_UDC_DETECT,
.gpio_pullup = -1,

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