~shefty/rdma-dev.git
10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Fri, 2 Dec 2011 16:25:46 +0000 (08:25 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Correct General touch PID

10 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 2 Dec 2011 16:25:04 +0000 (08:25 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  vmwgfx: integer overflow in vmw_kms_update_layout_ioctl()
  drm/radeon/kms: fix 2D tiling CS support on EG/CM
  drm/radeon/kms: fix scanout of 2D tiled buffers on EG/CM
  drm: Fix lack of CRTC disable for drm_crtc_helper_set_config(.fb=NULL)
  drm/radeon/kms: add some new pci ids
  drm/radeon/kms: Skip ACPI call to ATIF when possible
  drm/radeon/kms: Hide debugging message
  drm/radeon/kms: add some loop timeouts in pageflip code
  drm/nv50/disp: silence compiler warning
  drm/nouveau: fix oopses caused by clear being called on unpopulated ttms
  drm/nouveau: Keep RAMIN heap within the channel.
  drm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations
  drm/nvc0/gr: fix TP init for transform feedback offset queries
  drm/nouveau: add dumb ioctl support

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Fri, 2 Dec 2011 16:10:51 +0000 (08:10 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix S3/S4 problem on machines with VREF-pin mute-LED
  ALSA: hda_intel - revert a quirk that affect VIA chipsets
  ALSA: hda - Avoid touching mute-VREF pin for IDT codecs
  firmware: Sigma: Fix endianess issues
  firmware: Sigma: Skip header during CRC generation
  firmware: Sigma: Prevent out of bounds memory access
  ALSA: usb-audio - Support for Roland GAIA SH-01 Synthesizer
  ASoC: Supply dcs_codes for newer WM1811 revisions
  ASoC: Error out if we can't generate a LRCLK at all for WM8994
  ASoC: Correct name of Speyside Main Speaker widget
  ASoC: skip resume of soc-audio devices without codecs
  ASoC: cs42l51: Fix off-by-one for reg_cache_size
  ASoC: drop support for PlayPaq with WM8510
  ASoC: mpc8610: tell the CS4270 codec that it's the master
  ASoC: cs4720: use snd_soc_cache_sync()
  ASoC: SAMSUNG: Fix build error
  ASoC: max9877: Update register if either val or val2 is changed
  ASoC: Fix wrong define for AD1836_ADC_WORD_OFFSET

10 years agovmwgfx: integer overflow in vmw_kms_update_layout_ioctl()
Xi Wang [Mon, 28 Nov 2011 11:25:43 +0000 (12:25 +0100)]
vmwgfx: integer overflow in vmw_kms_update_layout_ioctl()

There are two issues in vmw_kms_update_layout_ioctl().  First, the
for loop forgets to index rects and only checks the first element.
Second, there is a potential integer overflow if userspace passes
in a large arg->num_outputs.  The call to kzalloc() would allocate
a small buffer, leading to out-of-bounds read.

Reported-by: Haogang Chen <haogangchen@gmail.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/radeon/kms: fix 2D tiling CS support on EG/CM
Alex Deucher [Mon, 28 Nov 2011 19:49:28 +0000 (14:49 -0500)]
drm/radeon/kms: fix 2D tiling CS support on EG/CM

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=43191

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/radeon/kms: fix scanout of 2D tiled buffers on EG/CM
Alex Deucher [Mon, 28 Nov 2011 19:49:27 +0000 (14:49 -0500)]
drm/radeon/kms: fix scanout of 2D tiled buffers on EG/CM

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=43191

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: Fix lack of CRTC disable for drm_crtc_helper_set_config(.fb=NULL)
Chris Wilson [Mon, 28 Nov 2011 21:10:05 +0000 (21:10 +0000)]
drm: Fix lack of CRTC disable for drm_crtc_helper_set_config(.fb=NULL)

Disabling the CRTC by setting its framebuffer to NULL, as used by
drm_framebuffer_cleanup(), was failing to pass the current framebuffer
to the crtc_func->disable callback. This is because of the dance within
drm_crtc_helper_set_config to pass the new_fb (NULL in this case) to the
drm_crtc_helper_set_mode with the currently attached fb as a parameter.
drm_crtc_helper_set_mode treats this as a no-op and the encoder is still
enabled. And so the current fb is forgotten before the call to
drm_helper_disable_unused_functions.

This patch treats disabling the CRTC as a simple special case rather
than adding further complexity into the configuration logic.

This fixes a pin-leak of the fb bo on Xserver close.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 2 Dec 2011 04:09:08 +0000 (20:09 -0800)]
Merge git://git./linux/kernel/git/davem/net

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (73 commits)
  netfilter: Remove ADVANCED dependency from NF_CONNTRACK_NETBIOS_NS
  ipv4: flush route cache after change accept_local
  sch_red: fix red_change
  Revert "udp: remove redundant variable"
  bridge: master device stuck in no-carrier state forever when in user-stp mode
  ipv4: Perform peer validation on cached route lookup.
  net/core: fix rollback handler in register_netdevice_notifier
  sch_red: fix red_calc_qavg_from_idle_time
  bonding: only use primary address for ARP
  ipv4: fix lockdep splat in rt_cache_seq_show
  sch_teql: fix lockdep splat
  net: fec: Select the FEC driver by default for i.MX SoCs
  isdn: avoid copying too long drvid
  isdn: make sure strings are null terminated
  netlabel: Fix build problems when IPv6 is not enabled
  sctp: better integer overflow check in sctp_auth_create_key()
  sctp: integer overflow in sctp_auth_create_key()
  ipv6: Set mcast_hops to IPV6_DEFAULT_MCASTHOPS when -1 was given.
  net: Fix corruption in /proc/*/net/dev_mcast
  mac80211: fix race between the AGG SM and the Tx data path
  ...

10 years agonetfilter: Remove ADVANCED dependency from NF_CONNTRACK_NETBIOS_NS
David S. Miller [Fri, 2 Dec 2011 03:19:01 +0000 (22:19 -0500)]
netfilter: Remove ADVANCED dependency from NF_CONNTRACK_NETBIOS_NS

firewalld in Fedora 16 needs this.

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoipv4: flush route cache after change accept_local
Peter Pan(潘卫平) [Thu, 1 Dec 2011 15:47:06 +0000 (15:47 +0000)]
ipv4: flush route cache after change accept_local

After reset ipv4_devconf->data[IPV4_DEVCONF_ACCEPT_LOCAL] to 0,
we should flush route cache, or it will continue receive packets with local
source address, which should be dropped.

Signed-off-by: Weiping Pan <panweiping3@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosch_red: fix red_change
Eric Dumazet [Thu, 1 Dec 2011 11:06:34 +0000 (11:06 +0000)]
sch_red: fix red_change

Le mercredi 30 novembre 2011 à 14:36 -0800, Stephen Hemminger a écrit :

> (Almost) nobody uses RED because they can't figure it out.
> According to Wikipedia, VJ says that:
>  "there are not one, but two bugs in classic RED."

RED is useful for high throughput routers, I doubt many linux machines
act as such devices.

I was considering adding Adaptative RED (Sally Floyd, Ramakrishna
Gummadi, Scott Shender), August 2001

In this version, maxp is dynamic (from 1% to 50%), and user only have to
setup min_th (target average queue size)
(max_th and wq (burst in linux RED) are automatically setup)

By the way it seems we have a small bug in red_change()

if (skb_queue_empty(&sch->q))
red_end_of_idle_period(&q->parms);

First, if queue is empty, we should call
red_start_of_idle_period(&q->parms);

Second, since we dont use anymore sch->q, but q->qdisc, the test is
meaningless.

Oh well...

[PATCH] sch_red: fix red_change()

Now RED is classful, we must check q->qdisc->q.qlen, and if queue is empty,
we start an idle period, not end it.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoLinux 3.2-rc4
Linus Torvalds [Thu, 1 Dec 2011 22:56:01 +0000 (14:56 -0800)]
Linux 3.2-rc4

10 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec...
Linus Torvalds [Thu, 1 Dec 2011 22:55:34 +0000 (14:55 -0800)]
Merge branch 'upstream-linus' of git://git./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()
  ...

10 years agoocfs2: avoid unaligned access to dqc_bitmap
Akinobu Mita [Tue, 15 Nov 2011 22:56:34 +0000 (14:56 -0800)]
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>
10 years agoMerge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur...
Linus Torvalds [Thu, 1 Dec 2011 19:53:54 +0000 (11:53 -0800)]
Merge branch 'fixes' of 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

10 years agoRevert "udp: remove redundant variable"
David S. Miller [Thu, 1 Dec 2011 19:12:55 +0000 (14:12 -0500)]
Revert "udp: remove redundant variable"

This reverts commit 81d54ec8479a2c695760da81f05b5a9fb2dbe40a.

If we take the "try_again" goto, due to a checksum error,
the 'len' has already been truncated.  So we won't compute
the same values as the original code did.

Reported-by: paul bilke <fsmail@conspiracy.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobridge: master device stuck in no-carrier state forever when in user-stp mode
Vitalii Demianets [Fri, 25 Nov 2011 00:16:37 +0000 (00:16 +0000)]
bridge: master device stuck in no-carrier state forever when in user-stp mode

When in user-stp mode, bridge master do not follow state of its slaves, so
after the following sequence of events it can stuck forever in no-carrier
state:
1) turn stp off
2) put all slaves down - master device will follow their state and also go in
no-carrier state
3) turn stp on with bridge-stp script returning 0 (go to the user-stp mode)
Now bridge master won't follow slaves' state and will never reach running
state.

This patch solves the problem by making user-stp and kernel-stp behavior
similar regarding master following slaves' states.

Signed-off-by: Vitalii Demianets <vitas@nppfactor.kiev.ua>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoipv4: Perform peer validation on cached route lookup.
David S. Miller [Thu, 1 Dec 2011 18:38:59 +0000 (13:38 -0500)]
ipv4: Perform peer validation on cached route lookup.

Otherwise we won't notice the peer GENID change.

Reported-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agodrm/radeon/kms: add some new pci ids
Alex Deucher [Thu, 1 Dec 2011 16:02:11 +0000 (11:02 -0500)]
drm/radeon/kms: add some new pci ids

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Thu, 1 Dec 2011 16:28:53 +0000 (08:28 -0800)]
Merge branch 'for-linus' of git://git./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()

10 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Thu, 1 Dec 2011 15:32:18 +0000 (16:32 +0100)]
Merge branch 'fix/asoc' into for-linus

10 years agoBtrfs: fix meta data raid-repair merge problem
Jan Schmidt [Thu, 1 Dec 2011 14:30:36 +0000 (09:30 -0500)]
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>
10 years agoALSA: hda - Fix S3/S4 problem on machines with VREF-pin mute-LED
Charles Chin [Thu, 1 Dec 2011 10:21:00 +0000 (11:21 +0100)]
ALSA: hda - Fix S3/S4 problem on machines with VREF-pin mute-LED

The verb command in stac92xx_post_suspend caused the audio to stop
working after resuming from S3 mode on HP laptops with the VREF-pin
mute-LED control.  Removing relevant post_suspend registering.

Although removing D3 on AFG is no optimal solution, the impact should
be small in comparison with the broken S3/S4.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 years agodrm/radeon/kms: Skip ACPI call to ATIF when possible
Jean Delvare [Wed, 30 Nov 2011 16:36:39 +0000 (17:36 +0100)]
drm/radeon/kms: Skip ACPI call to ATIF when possible

I am under the impression that it only makes sense to call the ATIF
method if the graphics device has an ACPI handle attached. So we could
skip the call altogether if there is no such handle.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/radeon/kms: Hide debugging message
Jean Delvare [Wed, 30 Nov 2011 16:26:36 +0000 (17:26 +0100)]
drm/radeon/kms: Hide debugging message

Use the proper macro to issue the debugging message in
radeon_atif_call(). Otherwise we spam the log of many systems with a
message which looks like an error message of unknown origin, and could
thus confuse the user. Commit dc77de12dde95c8da39e4c417eb70c7d445cf84b
was a first step in this direction, but was not sufficient IMHO.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/radeon/kms: add some loop timeouts in pageflip code
Alex Deucher [Mon, 28 Nov 2011 19:49:26 +0000 (14:49 -0500)]
drm/radeon/kms: add some loop timeouts in pageflip code

Avoid infinite loops waiting for surface updates if a GPU
reset happens while waiting for a page flip.

See:
https://bugs.freedesktop.org/show_bug.cgi?id=43191

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Reviewed-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Tested-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2...
Dave Airlie [Thu, 1 Dec 2011 09:01:55 +0000 (09:01 +0000)]
Merge branch 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes

* 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6:
  drm/nv50/disp: silence compiler warning
  drm/nouveau: fix oopses caused by clear being called on unpopulated ttms
  drm/nouveau: Keep RAMIN heap within the channel.
  drm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations
  drm/nvc0/gr: fix TP init for transform feedback offset queries
  drm/nouveau: add dumb ioctl support

10 years agonet/core: fix rollback handler in register_netdevice_notifier
RongQing.Li [Thu, 1 Dec 2011 04:43:07 +0000 (23:43 -0500)]
net/core: fix rollback handler in register_netdevice_notifier

Within nested statements, the break statement terminates only the
do, for, switch, or while statement that immediately encloses it,
So replace the break with goto.

Signed-off-by: RongQing.Li <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosch_red: fix red_calc_qavg_from_idle_time
Eric Dumazet [Wed, 30 Nov 2011 12:10:53 +0000 (12:10 +0000)]
sch_red: fix red_calc_qavg_from_idle_time

Since commit a4a710c4a7490587 (pkt_sched: Change PSCHED_SHIFT from 10 to
6) it seems RED/GRED are broken.

red_calc_qavg_from_idle_time() computes a delay in us units, but this
delay is now 16 times bigger than real delay, so the final qavg result
smaller than expected.

Use standard kernel time services since there is no need to obfuscate
them.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobonding: only use primary address for ARP
Henrik Saavedra Persson [Wed, 23 Nov 2011 23:37:15 +0000 (23:37 +0000)]
bonding: only use primary address for ARP

Only use the primary address of the bond device
for master_ip. This will prevent changing the ARP source
address in Active-Backup mode whenever a secondry address
is added to the bond device.

Signed-off-by: Henrik Saavedra Persson <henrik.e.persson@ericsson.com>
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@drr.davemloft.net>
10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Thu, 1 Dec 2011 00:25:02 +0000 (16:25 -0800)]
Merge branch 'for-linus' of git://git./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()

10 years agoMerge branch 'dt-for-linus' of git://sources.calxeda.com/kernel/linux
Linus Torvalds [Thu, 1 Dec 2011 00:24:43 +0000 (16:24 -0800)]
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

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
Linus Torvalds [Thu, 1 Dec 2011 00:24:24 +0000 (16:24 -0800)]
Merge branch 'for-linus' of git://git./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

10 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Thu, 1 Dec 2011 00:23:59 +0000 (16:23 -0800)]
Merge branch 'fixes' of git://git./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
  ...

10 years agoARM: 7182/1: ARM cpu topology: fix warning
Vincent Guittot [Tue, 29 Nov 2011 14:50:20 +0000 (15:50 +0100)]
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>
10 years agoARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
Jon Medhurst (Tixy) [Tue, 29 Nov 2011 07:16:02 +0000 (08:16 +0100)]
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>
10 years agoARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
Jon Medhurst (Tixy) [Tue, 29 Nov 2011 07:14:35 +0000 (08:14 +0100)]
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>
10 years agoipv4: fix lockdep splat in rt_cache_seq_show
Eric Dumazet [Tue, 29 Nov 2011 20:05:55 +0000 (20:05 +0000)]
ipv4: fix lockdep splat in rt_cache_seq_show

After commit f2c31e32b378 (fix NULL dereferences in check_peer_redir()),
dst_get_neighbour() should be guarded by rcu_read_lock() /
rcu_read_unlock() section.

Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosch_teql: fix lockdep splat
Eric Dumazet [Wed, 30 Nov 2011 04:08:58 +0000 (04:08 +0000)]
sch_teql: fix lockdep splat

We need rcu_read_lock() protection before using dst_get_neighbour(), and
we must cache its value (pass it to __teql_resolve())

teql_master_xmit() is called under rcu_read_lock_bh() protection, its
not enough.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: fec: Select the FEC driver by default for i.MX SoCs
Fabio Estevam [Wed, 30 Nov 2011 22:07:21 +0000 (17:07 -0500)]
net: fec: Select the FEC driver by default for i.MX SoCs

Since commit 230dec6 (net/fec: add imx6q enet support) the FEC driver is no
longer built by default for i.MX SoCs.

Let the FEC driver be built by default again.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Wed, 30 Nov 2011 19:14:42 +0000 (14:14 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem

10 years agoBtrfs: skip allocation attempt from empty cluster
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000 (13:43 -0500)]
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>
10 years agoBtrfs: skip block groups without enough space for a cluster
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000 (13:43 -0500)]
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>
10 years agoBtrfs: start search for new cluster at the beginning
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000 (13:43 -0500)]
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>
10 years agoBtrfs: reset cluster's max_size when creating bitmap
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000 (13:43 -0500)]
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>
10 years agoBtrfs: initialize new bitmaps' list
Alexandre Oliva [Mon, 28 Nov 2011 14:04:43 +0000 (12:04 -0200)]
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.

10 years agoBtrfs: fix oops when calling statfs on readonly device
Li Zefan [Mon, 28 Nov 2011 08:43:00 +0000 (16:43 +0800)]
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>
10 years agoBtrfs: Don't error on resizing FS to same size
Mike Fleetwood [Fri, 18 Nov 2011 18:55:01 +0000 (18:55 +0000)]
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>
10 years agoBtrfs: fix deadlock on metadata reservation when evicting a inode
Miao Xie [Fri, 18 Nov 2011 09:43:00 +0000 (17:43 +0800)]
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>
10 years agoFix URL of btrfs-progs git repository in docs
Arnd Hannemann [Wed, 16 Nov 2011 16:35:37 +0000 (17:35 +0100)]
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>
10 years agobtrfs scrub: handle -ENOMEM from init_ipath()
Dan Carpenter [Wed, 16 Nov 2011 08:28:01 +0000 (11:28 +0300)]
btrfs scrub: handle -ENOMEM from init_ipath()

init_ipath() can return an ERR_PTR(-ENOMEM).

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
10 years agodrm/nv50/disp: silence compiler warning
Ben Skeggs [Wed, 9 Nov 2011 05:30:08 +0000 (15:30 +1000)]
drm/nv50/disp: silence compiler warning

NFI why this only started appearing now.  The use of the uninitialised var
can't actually happen, so perhaps my compiler just got stupider.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau: fix oopses caused by clear being called on unpopulated ttms
Ben Skeggs [Fri, 25 Nov 2011 06:35:34 +0000 (16:35 +1000)]
drm/nouveau: fix oopses caused by clear being called on unpopulated ttms

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau: Keep RAMIN heap within the channel.
Younes Manton [Tue, 22 Nov 2011 19:58:31 +0000 (14:58 -0500)]
drm/nouveau: Keep RAMIN heap within the channel.

The entire RAMIN is allocated to be 'size', but the heap is
specified as 'base' + 'size' inside RAMIN, so it will overflow
past RAMIN by 'base' bytes on NV50+ and clobber other allocatons
unless it's size is adjusted.

Signed-off-by: Younes Manton <younes.m@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations
Ben Skeggs [Wed, 16 Nov 2011 23:10:02 +0000 (09:10 +1000)]
drm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nvc0/gr: fix TP init for transform feedback offset queries
Christoph Bumiller [Fri, 11 Nov 2011 19:47:58 +0000 (20:47 +0100)]
drm/nvc0/gr: fix TP init for transform feedback offset queries

Without this, they return bytes written since the last update of
the offset, but we want the full offset.

Trace shows setting this on GPC[0]/TP[0] is enough.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau: add dumb ioctl support
Ben Skeggs [Thu, 29 Sep 2011 22:55:50 +0000 (08:55 +1000)]
drm/nouveau: add dumb ioctl support

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agoMerge branches 'cxgb4', 'ipoib', 'misc' and 'qib' into for-next
Roland Dreier [Wed, 30 Nov 2011 02:01:53 +0000 (18:01 -0800)]
Merge branches 'cxgb4', 'ipoib', 'misc' and 'qib' into for-next

10 years agoisdn: avoid copying too long drvid
Dan Carpenter [Thu, 24 Nov 2011 02:42:09 +0000 (02:42 +0000)]
isdn: avoid copying too long drvid

"cfg->drvid" comes from the user so there is a possibility they
didn't NUL terminate it properly.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoisdn: make sure strings are null terminated
Dan Carpenter [Thu, 24 Nov 2011 02:41:49 +0000 (02:41 +0000)]
isdn: make sure strings are null terminated

These strings come from the user.  We strcpy() them inside
cf_command() so we should check that they are NULL terminated and
return an error if not.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Tue, 29 Nov 2011 22:43:22 +0000 (14:43 -0800)]
Merge branch 'pm-fixes' of git://git./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

10 years agonetlabel: Fix build problems when IPv6 is not enabled
Paul Moore [Tue, 29 Nov 2011 10:10:54 +0000 (10:10 +0000)]
netlabel: Fix build problems when IPv6 is not enabled

A recent fix to the the NetLabel code caused build problem with
configurations that did not have IPv6 enabled; see below:

 netlabel_kapi.c: In function 'netlbl_cfg_unlbl_map_add':
 netlabel_kapi.c:165:4:
  error: implicit declaration of function 'netlbl_af6list_add'

This patch fixes this problem by making the IPv6 specific code conditional
on the IPv6 configuration flags as we done in the rest of NetLabel and the
network stack as a whole.  We have to move some variable declarations
around as a result so things may not be quite as pretty, but at least it
builds cleanly now.

Some additional IPv6 conditionals were added to the NetLabel code as well
for the sake of consistency.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoIB: Fix RCU lockdep splats
Eric Dumazet [Tue, 29 Nov 2011 21:31:23 +0000 (22:31 +0100)]
IB: Fix RCU lockdep splats

Commit f2c31e32b37 ("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>
10 years agoIB/ipoib: Prevent hung task or softlockup processing multicast response
Mike Marciniszyn [Mon, 21 Nov 2011 13:43:54 +0000 (08:43 -0500)]
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>
10 years agosctp: better integer overflow check in sctp_auth_create_key()
Xi Wang [Tue, 29 Nov 2011 09:26:30 +0000 (09:26 +0000)]
sctp: better integer overflow check in sctp_auth_create_key()

The check from commit 30c2235c is incomplete and cannot prevent
cases like key_len = 0x80000000 (INT_MAX + 1).  In that case, the
left-hand side of the check (INT_MAX - key_len), which is unsigned,
becomes 0xffffffff (UINT_MAX) and bypasses the check.

However this shouldn't be a security issue.  The function is called
from the following two code paths:

 1) setsockopt()

 2) sctp_auth_asoc_set_secret()

In case (1), sca_keylength is never going to exceed 65535 since it's
bounded by a u16 from the user API.  As such, the key length will
never overflow.

In case (2), sca_keylength is computed based on the user key (1 short)
and 2 * key_vector (3 shorts) for a total of 7 * USHRT_MAX, which still
will not overflow.

In other words, this overflow check is not really necessary.  Just
make it more correct.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Tue, 29 Nov 2011 19:13:22 +0000 (11:13 -0800)]
Merge branch 'slab/urgent' of git://git./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

10 years agoMerge branch 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Tue, 29 Nov 2011 16:59:12 +0000 (08:59 -0800)]
Merge branch 'dev' of git://git./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()

10 years agoMerge branch 'defconfigs-for-arnd' of git://git.linaro.org/people/triad/linux-sterics...
Arnd Bergmann [Tue, 29 Nov 2011 14:50:17 +0000 (14:50 +0000)]
Merge branch 'defconfigs-for-arnd' of git://git.linaro.org/people/triad/linux-stericsson into fixes

10 years agoof: Add Silicon Image vendor prefix
Pawel Moll [Tue, 8 Nov 2011 11:35:20 +0000 (11:35 +0000)]
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>
10 years agoof/irq: of_irq_init: add check for parent equal to child node
Rob Herring [Mon, 28 Nov 2011 02:16:33 +0000 (20:16 -0600)]
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" (dc9372808412edb), 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>
10 years agoALSA: hda_intel - revert a quirk that affect VIA chipsets
Marc Vertes [Tue, 29 Nov 2011 11:21:17 +0000 (12:21 +0100)]
ALSA: hda_intel - revert a quirk that affect VIA chipsets

This quirk sould be reverted. It has the following probems:

1) The quirk was intended to "ASUS MV2-MX SE" motherboards only, but the
ID used matches a much broader range, potentially all boards containing a
VIA chipset model in the family of vendor VIA 0x1106 and audio device ID
0x3288, which encompasses VIA-VT82xx, VIA-VT1xx and VIA-VT20xx chipsets.

2) VIA chipsets rely on azx_via_get_position() to handle correctly dma
transfers during capture. Using POS_FIX_LPIB instead of POS_FIX_VIACOMBO
leads to partially corrupted input buffers during capture. The effects
of this bug are not immediately visible, it took strong DSP expertise,
some expensive signal generator and a spectrum analyzer to identify it
and verify correct behaviour using original default.

3) It's almost certain that the quirk did not fix the real problem,
if there was one. Refer to original submission:
http://mailman.alsa-project.org/pipermail/alsa-devel/2010-February/025109.html

Signed-of-by: Marc Vertes <mvertes@sigfox.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 years agoALSA: hda - Avoid touching mute-VREF pin for IDT codecs
Takashi Iwai [Tue, 29 Nov 2011 12:01:30 +0000 (13:01 +0100)]
ALSA: hda - Avoid touching mute-VREF pin for IDT codecs

Some HP laptops use a pin VREF for controlling the mute LED, and such a
pin shouldn't be powered off.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 years agofirmware: Sigma: Fix endianess issues
Lars-Peter Clausen [Mon, 28 Nov 2011 08:44:16 +0000 (09:44 +0100)]
firmware: Sigma: Fix endianess issues

Currently the SigmaDSP firmware loader only works correctly on little-endian
systems. Fix this by using the proper endianess conversion functions.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
10 years agofirmware: Sigma: Skip header during CRC generation
Lars-Peter Clausen [Mon, 28 Nov 2011 08:44:15 +0000 (09:44 +0100)]
firmware: Sigma: Skip header during CRC generation

The firmware header is not part of the CRC, so skip it. Otherwise the firmware
will be rejected due to non-matching CRCs.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
10 years agofirmware: Sigma: Prevent out of bounds memory access
Lars-Peter Clausen [Mon, 28 Nov 2011 08:44:14 +0000 (09:44 +0100)]
firmware: Sigma: Prevent out of bounds memory access

The SigmaDSP firmware loader currently does not perform enough boundary size
checks when processing the firmware. As a result it is possible that a
malformed firmware can cause an out of bounds memory access.

This patch adds checks which ensure that both the action header and the payload
are completely inside the firmware data boundaries before processing them.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
10 years agoARM: ux500: update defconfig
Linus Walleij [Wed, 16 Nov 2011 19:30:35 +0000 (20:30 +0100)]
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>
10 years agoARM: u300: update defconfig
Linus Walleij [Wed, 16 Nov 2011 19:44:13 +0000 (20:44 +0100)]
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>
10 years agoALSA: usb-audio - Support for Roland GAIA SH-01 Synthesizer
John F Leach [Tue, 29 Nov 2011 00:41:27 +0000 (19:41 -0500)]
ALSA: usb-audio - Support for Roland GAIA SH-01 Synthesizer

Added table quirks entry for Roland GAIA SH-01 Synthesizer based upon
Roland SH-201 table entry as template.  USB MIDI and audio was tested
with Muse and Audacity.

Signed-off-by: John F Leach <jfleach@jfleach.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 years agoMerge branch 'nf' of git://1984.lsi.us.es/net
David S. Miller [Tue, 29 Nov 2011 06:20:55 +0000 (01:20 -0500)]
Merge branch 'nf' of git://1984.lsi.us.es/net

10 years agosctp: integer overflow in sctp_auth_create_key()
Xi Wang [Tue, 22 Nov 2011 15:55:30 +0000 (15:55 +0000)]
sctp: integer overflow in sctp_auth_create_key()

The previous commit 30c2235c is incomplete and cannot prevent integer
overflows. For example, when key_len is 0x80000000 (INT_MAX + 1), the
left-hand side of the check, (INT_MAX - key_len), which is unsigned,
becomes 0xffffffff (UINT_MAX) and bypasses the check.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groec...
Linus Torvalds [Tue, 29 Nov 2011 03:28:32 +0000 (19:28 -0800)]
Merge branch 'hwmon-for-linus' of git://git./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

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Linus Torvalds [Tue, 29 Nov 2011 00:37:35 +0000 (16:37 -0800)]
Merge branch 'for-linus' of git://git./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()

10 years agoefivars: add missing parameter to efi_pstore_read()
Christoph Fritz [Mon, 28 Nov 2011 22:49:33 +0000 (23:49 +0100)]
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 f6f8285132907757ef84ef8dae0a1244b8cde6ac

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
10 years agoASoC: Supply dcs_codes for newer WM1811 revisions
Mark Brown [Mon, 28 Nov 2011 18:48:46 +0000 (18:48 +0000)]
ASoC: Supply dcs_codes for newer WM1811 revisions

Based on initial data.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
10 years agoipv6: Set mcast_hops to IPV6_DEFAULT_MCASTHOPS when -1 was given.
Li Wei [Sun, 27 Nov 2011 21:33:34 +0000 (21:33 +0000)]
ipv6: Set mcast_hops to IPV6_DEFAULT_MCASTHOPS when -1 was given.

We need to set np->mcast_hops to it's default value at this moment
otherwise when we use it and found it's value is -1, the logic to
get default hop limit doesn't take multicast into account and will
return wrong hop limit(IPV6_DEFAULT_HOPLIMIT) which is for unicast.

Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: Fix corruption in /proc/*/net/dev_mcast
Anton Blanchard [Sun, 27 Nov 2011 21:14:46 +0000 (21:14 +0000)]
net: Fix corruption in /proc/*/net/dev_mcast

I just hit this during my testing. Isn't there another bug lurking?

BUG kmalloc-8: Redzone overwritten

INFO: 0xc0000000de9dec48-0xc0000000de9dec4b. First byte 0x0 instead of 0xcc
INFO: Allocated in .__seq_open_private+0x30/0xa0 age=0 cpu=5 pid=3896
.__kmalloc+0x1e0/0x2d0
.__seq_open_private+0x30/0xa0
.seq_open_net+0x60/0xe0
.dev_mc_seq_open+0x4c/0x70
.proc_reg_open+0xd8/0x260
.__dentry_open.clone.11+0x2b8/0x400
.do_last+0xf4/0x950
.path_openat+0xf8/0x480
.do_filp_open+0x48/0xc0
.do_sys_open+0x140/0x250
syscall_exit+0x0/0x40

dev_mc_seq_ops uses dev_seq_start/next/stop but only allocates
sizeof(struct seq_net_private) of private data, whereas it expects
sizeof(struct dev_iter_state):

struct dev_iter_state {
struct seq_net_private p;
unsigned int pos; /* bucket << BUCKET_SPACE + offset */
};

Create dev_seq_open_ops and use it so we don't have to expose
struct dev_iter_state.

[ Problem added by commit f04565ddf52e4 (dev: use name hash for
  dev_seq_ops) -Eric ]

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoASoC: Error out if we can't generate a LRCLK at all for WM8994
Mark Brown [Mon, 28 Nov 2011 21:16:56 +0000 (21:16 +0000)]
ASoC: Error out if we can't generate a LRCLK at all for WM8994

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
10 years agoMerge branch 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
Linus Torvalds [Mon, 28 Nov 2011 21:55:59 +0000 (13:55 -0800)]
Merge branch 'for-3.2-fixes' of git://git./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

10 years agoMerge branch 'for-3.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
Linus Torvalds [Mon, 28 Nov 2011 21:49:43 +0000 (13:49 -0800)]
Merge branch 'for-3.2-fixes' of git://git./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

10 years agoPM: Update comments describing device power management callbacks
Rafael J. Wysocki [Wed, 23 Nov 2011 20:20:32 +0000 (21:20 +0100)]
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>
10 years agoPM / Sleep: Update documentation related to system wakeup
Rafael J. Wysocki [Wed, 23 Nov 2011 20:20:15 +0000 (21:20 +0100)]
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>
10 years agoPM / Runtime: Make documentation follow the new behavior of irq_safe
Rafael J. Wysocki [Wed, 23 Nov 2011 20:20:07 +0000 (21:20 +0100)]
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>
10 years agoPM / Sleep: Correct inaccurate information in devices.txt
Rafael J. Wysocki [Wed, 23 Nov 2011 20:19:57 +0000 (21:19 +0100)]
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>
10 years agoPM / Domains: Document how PM domains are used by the PM core
Rafael J. Wysocki [Wed, 23 Nov 2011 20:18:39 +0000 (21:18 +0100)]
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>
10 years agoIB/qib: Fix over-scheduling of QSFP work
Mike Marciniszyn [Wed, 9 Nov 2011 22:07:22 +0000 (17:07 -0500)]
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>
10 years agoRDMA/cxgb4: Fix retry with MPAv1 logic for MPAv2
Kumar Sanghvi [Mon, 28 Nov 2011 16:39:15 +0000 (22:09 +0530)]
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>
10 years agoRDMA/cxgb4: Fix iw_cxgb4 count_rcqes() logic
Jonathan Lallinger [Thu, 20 Oct 2011 18:25:14 +0000 (13:25 -0500)]
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>
10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Linus Torvalds [Mon, 28 Nov 2011 19:27:57 +0000 (11:27 -0800)]
Merge branch 'for-linus' of git://git./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

10 years agoregulator: twl: fix twl4030 support for smps regulators
Tero Kristo [Mon, 28 Nov 2011 14:53:19 +0000 (16:53 +0200)]
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
10 years agomac80211: fix race between the AGG SM and the Tx data path
Emmanuel Grumbach [Sun, 27 Nov 2011 13:29:44 +0000 (15:29 +0200)]
mac80211: fix race between the AGG SM and the Tx data path

When a packet is supposed to sent be as an a-MPDU, mac80211 sets
IEEE80211_TX_CTL_AMPDU to let the driver know. On the other
hand, mac80211 configures the driver for aggregration with the
ampdu_action callback.
There is race between these two mechanisms since the following
scenario can occur when the BA agreement is torn down:

Tx softIRQ   drv configuration
========== =================

check OPERATIONAL bit
Set the TX_CTL_AMPDU bit in the packet

clear OPERATIONAL bit
stop Tx AGG
Pass Tx packet to the driver.

In that case the driver would get a packet with TX_CTL_AMPDU set
although it has already been notified that the BA session has been
torn down.

To fix this, we need to synchronize all the Qdisc activity after we
cleared the OPERATIONAL bit. After that step, all the following
packets will be buffered until the driver reports it is ready to get
new packets for this RA / TID. This buffering allows not to run into
another race that would send packets with TX_CTL_AMPDU unset while
the driver hasn't been requested to tear down the BA session yet.

This race occurs in practice and iwlwifi complains with a WARN_ON
when it happens.

Cc: stable@kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>