Commit Graph

349805 Commits

Author SHA1 Message Date
Arnd Bergmann
275aaa6833 samples/seccomp: be less stupid about cross compiling
The seccomp filters are currently built for the build host, not for the
machine that they are going to run on, but they are also built for with
the -m32 flag if the kernel is built for a 32 bit machine, both of which
seems rather odd.

It broke allyesconfig on my machine, which is x86-64, but building for
32 bit ARM, with this error message:

  In file included from /usr/include/stdio.h:28:0,
                   from samples/seccomp/bpf-fancy.c:15:
  /usr/include/features.h:324:26: fatal error: bits/predefs.h: No such file or directory

because there are no 32 bit libc headers installed on this machine.  We
should really be building all the samples for the target machine rather
than the build host, but since the infrastructure for that appears to be
missing right now, let's be a little bit smarter and not pass the '-m32'
flag to the HOSTCC when cross- compiling.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: James Morris <james.l.morris@oracle.com>
Acked-by: Will Drewry <wad@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:49 +11:00
Joe Perches
326b1ffc13 checkpatch: fix $Float creation of match variables
Commit 74349bcced ("checkpatch: add support for floating point
constants") added an unnecessary match variable that caused tests that
used a $Constant or $LvalOrFunc to have one too many matches.

This causes problems with usleep_range, min/max and other extended
tests.

Avoid using match variables in $Float.
Avoid using match variables in $Assignment too.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:48 +11:00
Glauber Costa
91c777d867 memcg: fix typo in kmemcg cache walk macro
The macro for_each_memcg_cache_index contains a silly yet potentially
deadly mistake.  Although the macro parameter is _idx, the loop tests
are done over i, not _idx.

This hasn't generated any problems so far, because all users use i as a
loop index.  However, while playing with an extension of the code I
ended using another loop index and the compiler was quick to complain.

Unfortunately, this is not the kind of thing that testing reveals =(

Signed-off-by: Glauber Costa <glommer@parallels.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:48 +11:00
Yuanhan Liu
631b0cfdbd mm: fix wrong comments about anon_vma lock
We use rwsem since commit 5a505085f0 ("mm/rmap: Convert the struct
anon_vma::mutex to an rwsem").  And most of comments are converted to
the new rwsem lock; while just 2 more missed from:

	 $ git grep 'anon_vma->mutex'

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:48 +11:00
Matthias Brugger
249d9d9d6b MAINTAINERS: update avr32 web ressources
Web resource http://avr32linux.org/ is no longer available.  We add the
mirror of the web page foud at http://mirror.egtvedt.no/avr32linux.org/.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:47 +11:00
Tony Lu
be7517d6ab mm/hugetlb: set PTE as huge in hugetlb_change_protection and remove_migration_pte
When setting a huge PTE, besides calling pte_mkhuge(), we also need to
call arch_make_huge_pte(), which we indeed do in make_huge_pte(), but we
forget to do in hugetlb_change_protection() and remove_migration_pte().

Signed-off-by: Zhigang Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Hillf Danton <dhillf@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:47 +11:00
Tony Prisk
3bdf8cd322 drivers/rtc/rtc-vt8500.c: fix year field in vt8500_rtc_set_time()
The year field is incorrectly masked when setting the date.  If the year
is beyond 2099, the year field will be incorrectly updated in hardware.

This patch masks the year field correctly.

Signed-off-by: Edgar Toernig <froese@gmx.de>
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:47 +11:00
Joonsoo Kim
1363b563a7 tools/vm: add .gitignore to ignore built binaries
There is no .gitignore in tools/vm, so 'git status' always show built
binaries.  To ignore this, add .gitignore.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:46 +11:00
Kirill A. Shutemov
85facf2570 thp: avoid dumping huge zero page
No reason to preserve the huge zero page in core dumps.

Reported-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:46 +11:00
Vyacheslav Dubeyko
a9bae18954 nilfs2: fix fix very long mount time issue
There exists a situation when GC can work in background alone without
any other filesystem activity during significant time.

The nilfs_clean_segments() method calls nilfs_segctor_construct() that
updates superblocks in the case of NILFS_SC_SUPER_ROOT and
THE_NILFS_DISCONTINUED flags are set.  But when GC is working alone the
nilfs_clean_segments() is called with unset THE_NILFS_DISCONTINUED flag.
As a result, the update of superblocks doesn't occurred all this time
and in the case of SPOR superblocks keep very old values of last super
root placement.

SYMPTOMS:

Trying to mount a NILFS2 volume after SPOR in such environment ends with
very long mounting time (it can achieve about several hours in some
cases).

REPRODUCING PATH:

1. It needs to use external USB HDD, disable automount and doesn't
   make any additional filesystem activity on the NILFS2 volume.

2. Generate temporary file with size about 100 - 500 GB (for example,
   dd if=/dev/zero of=<file_name> bs=1073741824 count=200).  The size of
   file defines duration of GC working.

3. Then it needs to delete file.

4. Start GC manually by means of command "nilfs-clean -p 0".  When you
   start GC by means of such way then, at the end, superblocks is updated
   by once.  So, for simulation of SPOR, it needs to wait sometime (15 -
   40 minutes) and simply switch off USB HDD manually.

5. Switch on USB HDD again and try to mount NILFS2 volume.  As a
   result, NILFS2 volume will mount during very long time.

REPRODUCIBILITY: 100%

FIX:

This patch adds checking that superblocks need to update and set
THE_NILFS_DISCONTINUED flag before nilfs_clean_segments() call.

Reported-by: Sergey Alexandrov <splavgm@gmail.com>
Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Tested-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-05 20:38:46 +11:00
Arend van Spriel
7b2385b953 brcmsmac: rework of mac80211 .flush() callback operation
This patch addresses a long standing issue of the driver with the
mac80211 .flush() callback. Since implementing the .flush() callback
a number of issues have been fixed, but a WARN_ON_ONCE() was still
triggered because the timeout on the flush could still occur.

This patch changes the awkward design using msleep() into one using
a waitqueue. The waiting flush() context will kick the transmit dma
when it is idle and the timeout used waiting for the event is set
to 500 ms. Worst case there can be 64 frames outstanding for transmit
in the driver. At a rate of 1Mbps that would take 1.5 seconds assuming
MTU is 1500 bytes and ignoring retries. The WARN_ON_ONCE() is also
removed as this was put in to indicate the flush timeout as a reason
for the driver to stall. That was not happening since fixing endless
AMPDU retries with following upstream commit:

commit 85091fc0a7
Author: Arend van Spriel <arend@broadcom.com>
Date:   Thu Feb 23 18:38:22 2012 +0100

    brcm80211: smac: fix endless retry of A-MPDU transmissions

bugzilla: 42840 <https://bugzilla.kernel.org/show_bug.cgi?id=42840>
bugzilla@redhat: <https://bugzilla.redhat.com/show_bug.cgi?id=799168>
bugzilla@redhat: <https://bugzilla.redhat.com/show_bug.cgi?id=787649>

Cc: Jonathan Nieder <jrnieder@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Camaleón <noelamac@gmail.com>
Cc: Milan Bouchet-Valat <nalimilan@club-internet.fr>
Cc: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-04 16:46:28 -05:00
Hauke Mehrtens
600485edae ssb: unregister gpios before unloading ssb
This patch unregisters the gpio chip before ssb gets unloaded.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-04 16:46:24 -05:00
Hauke Mehrtens
c50ae9470e bcma: unregister gpios before unloading bcma
This patch unregisters the gpio chip before bcma gets unloaded.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reported-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-04 16:46:24 -05:00
Larry Finger
a5ffbe0a19 rtlwifi: Fix scheduling while atomic bug
Kernel commits 41affd5 and 6539306 changed the locking in rtl_lps_leave()
from a spinlock to a mutex by doing the calls indirectly from a work queue
to reduce the time that interrupts were disabled. This change was fine for
most systems; however a scheduling while atomic bug was reported in
https://bugzilla.redhat.com/show_bug.cgi?id=903881. The backtrace indicates
that routine rtl_is_special(), which calls rtl_lps_leave() in three places
was entered in atomic context. These direct calls are replaced by putting a
request on the appropriate work queue.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-and-tested-by: Nathaniel Doherty <ntdoherty@gmail.com>
Cc: Nathaniel Doherty <ntdoherty@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-04 16:41:56 -05:00
John W. Linville
4c52d3d3fd Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2013-02-04 16:40:07 -05:00
David Teigland
d4b0bcf32b dlm: check the write size from user
Return EINVAL from write if the size is larger than
allowed.  Do this before allocating kernel memory for
the bogus size, which could lead to OOM.

Reported-by: Sasha Levin <levinsasha928@gmail.com>
Tested-by: Jana Saout <jana@saout.de>
Signed-off-by: David Teigland <teigland@redhat.com>
2013-02-04 15:31:22 -06:00
Linus Torvalds
3f4e5aacf7 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Three small fixlets"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/intel/cacheinfo: Shut up annoying warning
  x86, doc: Boot protocol 2.12 is in 3.8
  x86-64: Replace left over sti/cli in ia32 audit exit code
2013-02-05 07:59:44 +11:00
Linus Torvalds
2a6f79e8c1 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Three small fixlets"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/debug: Fix format string for 32-bit platforms
  sched: Fix warning in kernel/sched/fair.c
  sched/rt: Use root_domain of rt_rq not current processor
2013-02-05 07:58:24 +11:00
Linus Torvalds
51c1abb95f Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Three fixlets and two small (and low risk) hw-enablement changes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix event group context move
  x86/perf: Add IvyBridge EP support
  perf/x86: Fix P6 driver section warning
  arch/x86/tools/insn_sanity.c: Identify source of messages
  perf/x86: Enable Intel Lincroft/Penwell/Cloverview Atom support
2013-02-05 07:57:09 +11:00
Linus Torvalds
5dc31b5767 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull two small RCU fixlets from Ingo Molnar.

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rcu: Make rcu_nocb_poll an early_param instead of module_param
  rcu: Prevent soft-lockup complaints about no-CBs CPUs
2013-02-05 07:56:07 +11:00
Linus Torvalds
d92dd35920 A small set of simple regression and build fixes for 3.8:
- Fix a warning introduced in ONFI NAND probe
  - Fix commandline partition parsing
  - Require BITREVERSE for DiskOnChip G3 driver
  - Fix build failure for davinci_nand as module
  - Bump NFLASH_READY_RETRIES for bcm47xxnflash
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iEYEABECAAYFAlEPq8kACgkQdwG7hYl686NrCwCdH28jbk1MKSrge2Vf4ZeFvnbM
 AvUAoMvuEYrZbfAUYN7jf0t4FVvnJw97
 =hr+/
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20130204' of git://git.infradead.org/linux-mtd

Pull MTD fixes from David Woodhouse:
 "A small set of simple regression and build fixes for 3.8:
   - Fix a warning introduced in ONFI NAND probe
   - Fix commandline partition parsing
   - Require BITREVERSE for DiskOnChip G3 driver
   - Fix build failure for davinci_nand as module
   - Bump NFLASH_READY_RETRIES for bcm47xxnflash"

* tag 'for-linus-20130204' of git://git.infradead.org/linux-mtd:
  mtd: nand: onfi don't WARN if we are in 16 bits mode
  mtd: physmap_of: fix cmdline partition method w/o linux, mtd-name
  mtd: docg3 fix missing bitreverse lib
  mtd: davinci_nand: fix modular build with CONFIG_OF=y
  mtd: bcm47xxnflash: increase NFLASH_READY_RETRIES
2013-02-05 07:54:11 +11:00
Mark Brown
cf17c83c4a ASoC: wm_adsp: Use asynchronous I/O to write firmware and coefficients
Allow the regmap API to use asynchronous I/O where supported to minimise
the delay between transfers, reducing firmware download times.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 19:52:35 +00:00
Mark Brown
4c47c2b0f8 regmap: Add async I/O support
Allow drivers to take advantage of any support the underlying transports
 may have for pipelining data.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJREA1NAAoJELSic+t+oim9BtgQAJgUWoEWQ/0E62/PjjU/rg9I
 6TOzf2KChApqV/a0XGuRmGAjODVKiQw2w8bEmfsGo0Xk2iowFb7ZnJtqOmt5vZCj
 sa8yOlQK5SQkmmdumXm6qLIc1br7tw7OockjubAfYzrA+Z4p7G08H2JqLxO+okt3
 JQLrxIZ4scwrzY+9BSLjLvnWSn46XhJHCUTUvBg7Hr+IyokMO55Mmey57a4csRC+
 R2Z90T9nqX4DyWSo6mWnWYSFV01rzNujPc4pENul0Y5vGg630CqXnRjhLrhvWM4a
 N7czOIBNa1DwLcT2x6B10kwYynkY+lU0XDqxnT0gynUkGI82KF2w4MgyCmYLAjFa
 U+YDTLWcuw2SPiBo0HhSbC1aFT/fW4xT2l77ijqXyb0gX2WvztMftituq4sWJ8Ey
 3ILloWCD6Gcfb7QO4zIGM1n0hA2u8C8Qmylp/1Gd6q/DBF1D1Ry59DQpixWJEzaD
 KM/CQD1DovMcyQeTwLz33Rv+y9gzhVJRUpaMKIqvGoy0709jrLYd5TTN95u5e6zv
 1L9PkKrYX0iOHHXOpUm4uREjA2UXazvhnhLXWK5JDqKv6R4ApXY0CumzP4HP8gtV
 wbo3MI4cGXNtdkmbsak6h2bJqDa8L2XIVZcWPnt3wGKKiRhiKRWNBzCu4+357Vuf
 LiZruRXwFv5WipBdz0TA
 =/cJO
 -----END PGP SIGNATURE-----

Merge tag 'async' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into asoc-adsp

regmap: Add async I/O support

Allow drivers to take advantage of any support the underlying transports
may have for pipelining data.
2013-02-04 19:52:17 +00:00
Chris Rattray
0d2b642252 ASoC: wm2200: correct IN2L and IN3L digital mute
Signed-off-by: Chris Rattray <crattray@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2013-02-04 18:44:27 +00:00
fangxiaozhi
200e0d994d USB: storage: optimize to match the Huawei USB storage devices and support new switch command
1. Optimize the match rules with new macro for Huawei USB storage devices,
   to avoid to load USB storage driver for the modem interface
   with Huawei devices.
2. Add to support new switch command for new Huawei USB dongles.

Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-04 10:41:40 -08:00
fangxiaozhi
07c7be3d87 USB: storage: Define a new macro for USB storage match rules
1. Define a new macro for USB storage match rules:
    matching with Vendor ID and interface descriptors.

Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-04 10:40:16 -08:00
Bo Shen
151edfc757 ASoC: sam9g20_wm8731: disable clock and correct sequence when unload
disable clock and correct sequence when unload

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 18:34:14 +00:00
Bo Shen
69706028b9 ASoC: atmel_ssc_dai: correct sequence when unload
correct the sequence when unload this module

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 18:34:14 +00:00
Bo Shen
e08b273c38 ASoC: atmel_ssc_dai: remove error set private data
ssc private data has been set in ssc driver, this cause the error
private data set to ssc, remove it

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 18:34:14 +00:00
Bo Shen
d8976cfd82 ASoC: atmel_pcm: make it buildable as module
When build as module, it reports following error, using this patch
fix it

sound/soc/atmel/atmel-pcm-pdc.c:387: error: redefinition of 'atmel_pcm_pdc_platform_register'
sound/soc/atmel/atmel-pcm.h:95: note: previous definition of 'atmel_pcm_pdc_platform_register' was here
sound/soc/atmel/atmel-pcm-pdc.c:393: error: redefinition of 'atmel_pcm_pdc_platform_unregister'
sound/soc/atmel/atmel-pcm.h:99: note: previous definition of 'atmel_pcm_pdc_platform_unregister' was here

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 18:34:13 +00:00
Ryo Tsutsui
01f58153ae ASoC: arizona: Fixed a bug in FLL fractional calculation
Previously arizona_calc_fll() was checking if the target frequency is
exactly divisible by reference frequency, but should have been product
of the ratio and the reference frequency.

Also scale down the Lamba and Theta coefficients be under 16-bits in
order to match the registers.

Signed-off-by: Ryo Tsutsui <ryo.tsutsui@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2013-02-04 18:29:04 +00:00
Bjørn Mork
bf414b369f net: usbnet: fix tx_dropped statistics
It is normal for minidrivers accumulating frames to return NULL
from their tx_fixup function. We do not want to count this as a
drop, or log any debug messages.  A different exit path is
therefore chosen for such drivers, skipping the debug message
and the tx_dropped increment.

The test for accumulating drivers was however completely bogus,
making the exit path selection depend on whether the user had
enabled tx_err logging or not. This would arbitrarily mess up
accounting for both accumulating and non-accumulating minidrivers,
and would result in unwanted debug messages for the accumulating
drivers.

Fix by testing for FLAG_MULTI_PACKET instead, which probably was
the intention from the beginning.  This usage match the documented
behaviour of this flag:

 Indicates to usbnet, that USB driver accumulates multiple IP packets.
 Affects statistic (counters) and short packet handling.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-04 13:07:31 -05:00
Vijay Subramanian
5f1e942cb4 tcp: ipv6: Update MIB counters for drops
This patch updates LINUX_MIB_LISTENDROPS and LINUX_MIB_LISTENOVERFLOWS in
tcp_v6_conn_request() and tcp_v6_err(). tcp_v6_conn_request() in particular can
drop SYNs for various reasons which are not currently tracked.

Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-04 13:06:27 -05:00
Vijay Subramanian
848bf15f36 tcp: Update MIB counters for drops
This patch updates LINUX_MIB_LISTENDROPS in tcp_v4_conn_request() and
tcp_v4_err(). tcp_v4_conn_request() in particular can drop SYNs for various
reasons which are not currently tracked.

Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-04 13:06:27 -05:00
Borislav Petkov
f76e39c531 x86/intel/cacheinfo: Shut up annoying warning
I've been getting the following warning when doing randbuilds
since forever. Now it finally pissed me off just the perfect
amount so that I can fix it.

  arch/x86/kernel/cpu/intel_cacheinfo.c:489:27: warning: ‘cache_disable_0’ defined but not used [-Wunused-variable]
  arch/x86/kernel/cpu/intel_cacheinfo.c:491:27: warning: ‘cache_disable_1’ defined but not used [-Wunused-variable] arch/x86/kernel/cpu/intel_cacheinfo.c:524:27: warning: ‘subcaches’ defined but not used [-Wunused-variable]

It happens because in randconfigs where CONFIG_SYSFS is not set,
the whole sysfs-interface to L3 cache index disabling is
remaining unused and gcc correctly warns about it. Make it
optional, depending on CONFIG_SYSFS too, as is the case with
other sysfs-related machinery in this file.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Link: http://lkml.kernel.org/r/1359969195-27362-1-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-02-04 11:29:52 +01:00
Axel Lin
f804fb562b regmap: Export regmap_async_complete_cb
This fixes below build error when CONFIG_REGMAP=y && CONFIG_REGMAP_SPI=m

ERROR: "regmap_async_complete_cb" [drivers/base/regmap/regmap-spi.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 10:22:27 +00:00
Stephen Warren
30b2a55374 regmap: include linux/sched.h to fix build
This fixes:

drivers/base/regmap/regmap.c: In function 'regmap_async_complete_cb':
drivers/base/regmap/regmap.c:1656:3: error: 'TASK_NORMAL' undeclared (first use in this function)
drivers/base/regmap/regmap.c:1656:3: note: each undeclared identifier is reported only once for each function it appears in
drivers/base/regmap/regmap.c: In function 'regmap_async_complete':
drivers/base/regmap/regmap.c:1688:2: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function)
drivers/base/regmap/regmap.c:1688:2: error: implicit declaration of function 'schedule'

An alternative might be to adjust linux/wait.h to include linux/sched.h,
but since that hasn't been done before, I assume we're consciously
avoiding doing that.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-04 10:21:51 +00:00
Linus Torvalds
6edacf05c8 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc update from Benjamin Herrenschmidt:
 "Just so that you don't get too bored on your Island here's a patch for
  3.8 fixing a nasty bug that affects the new 64T support that was
  merged in 3.7.  Please apply whenever you have a chance (and an
  internet connection!)"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/mm: Fix hash computation function
2013-02-04 16:58:41 +11:00
Linus Torvalds
f19637e743 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull radeon fixes from Dave Airlie:
 "I got these late last week, the main chunks of these fix a rendering
  regression since 3.7, and the settle ones all fix the issue where we
  don't wait long enough for the memory controller to settle after
  turning it off which causes bad memory reads, they all fix real users
  bugs, and most of them are destined for stable.

  Can't remember if you had net connection on that island :-)"

I don't know if the "two tin-cans and a string" thing here on "that
island" can really be considered internet, but I guess I can pull
things.  Barely.

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: switch back to the CP ring for VM PT updates
  drm/radeon: prevent crash in the ring space allocation
  drm/radeon: Calling object_unrefer() when creating fb failure
  drm/radeon/r5xx-r7xx: wait for the MC to settle after MC blackout
  drm/radeon/evergreen+: wait for the MC to settle after MC blackout
  drm/radeon: protect against div by 0 in backend setup
  drm/radeon: fix backend map setup on 1 RB sumo boards
  drm/radeon: add quirk for RV100 board
  drm/radeon: add WAIT_UNTIL to the non-VM safe regs list for cayman/TN
  drm/radeon: fix MC blackout on evergreen+
2013-02-04 16:51:53 +11:00
Aneesh Kumar K.V
eda8eebdd1 powerpc/mm: Fix hash computation function
The ASM version of hash computation function was truncating the upper bit.
Make the ASM version similar to hpt_hash function. Remove masking vsid bits.
Without this patch, we observed hang during bootup due to not satisfying page
fault request correctly. The fault handler used wrong hash values to update
the HPTE. Hence we kept looping with page fault.

hash_page(ea=000001003e260008, access=203, trap=300 ip=3fff91787134 dsisr 42000000
The computed value of hash 000000000f22f390
update: avpnv=4003e46054003e00, hash=000000000722f390, f=80000006, psize: 2 ...

BenH: The over-masking has been there for ever but only hurts with the
new 64T support introduced in 3.7

Reported-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tested-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.7]
2013-02-04 15:15:08 +11:00
Phil Sutter
9665d5d624 packet: fix leakage of tx_ring memory
When releasing a packet socket, the routine packet_set_ring() is reused
to free rings instead of allocating them. But when calling it for the
first time, it fills req->tp_block_nr with the value of rb->pg_vec_len
which in the second invocation makes it bail out since req->tp_block_nr
is greater zero but req->tp_block_size is zero.

This patch solves the problem by passing a zeroed auto-variable to
packet_set_ring() upon each invocation from packet_release().

As far as I can tell, this issue exists even since 69e3c75 (net: TX_RING
and packet mmap), i.e. the original inclusion of TX ring support into
af_packet, but applies only to sockets with both RX and TX ring
allocated, which is probably why this was unnoticed all the time.

Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Cc: Johann Baudy <johann.baudy@gnu-log.net>
Cc: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-03 16:15:23 -05:00
Pravin B Shelar
92df9b217e net: Fix inner_network_header assignment in skb-copy.
Use correct inner offset to set inner_network_offset.
Found by inspection.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-03 16:10:36 -05:00
Eric Dumazet
2e5f421211 tcp: frto should not set snd_cwnd to 0
Commit 9dc274151a (tcp: fix ABC in tcp_slow_start())
uncovered a bug in FRTO code :
tcp_process_frto() is setting snd_cwnd to 0 if the number
of in flight packets is 0.

As Neal pointed out, if no packet is in flight we lost our
chance to disambiguate whether a loss timeout was spurious.

We should assume it was a proper loss.

Reported-by: Pasi Kärkkäinen <pasik@iki.fi>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-03 16:00:25 -05:00
Eric Dumazet
973ec449bb tcp: fix an infinite loop in tcp_slow_start()
Since commit 9dc274151a (tcp: fix ABC in tcp_slow_start()),
a nul snd_cwnd triggers an infinite loop in tcp_slow_start()

Avoid this infinite loop and log a one time error for further
analysis. FRTO code is suspected to cause this bug.

Reported-by: Pasi Kärkkäinen <pasik@iki.fi>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-03 16:00:25 -05:00
Jiri Olsa
0231bb5336 perf: Fix event group context move
When we have group with mixed events (hw/sw) we want to end up
with group leader being in hw context. So if group leader is
initialy sw event, we move all the events under hw context.

The move is done for each event by removing it from its context
and adding it back into proper one. As a part of the removal the
event is automatically disabled, which is not what we want at
this stage of creating groups.

The fix is to initialize event state after removal from sw
context.

This fix resulted from the following discussion:

  http://thread.gmane.org/gmane.linux.kernel.perf.user/1144

Reported-by: Andreas Hollmann <hollmann@in.tum.de>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vince@deater.net>
Link: http://lkml.kernel.org/r/1359714225-4231-1-git-send-email-jolsa@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-02-03 12:01:29 +01:00
David S. Miller
59fa534874 Merge branch 'fixes-for-3.8' of git://gitorious.org/linux-can/linux-can
Marc Kleine-Budde says:

====================
here's a patch for net for the v3.8 release cycle. Alexander Stein noticed that
the c_can hardware has a fixed bit in the IFx_MASK2 register. His patch fixes
writing of this register by always setting this bit.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-02 23:09:32 -05:00
David S. Miller
559bcac35f via-rhine: Fix bugs in NAPI support.
1) rhine_tx() should use dev_kfree_skb() not dev_kfree_skb_irq()

2) rhine_slow_event_task's NAPI triggering logic is racey, it
   should just hit the interrupt mask register.  This is the
   same as commit 7dbb491878
   ("r8169: avoid NAPI scheduling delay.") made to fix the same
   problem in the r8169 driver.  From Francois Romieu.

Reported-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Tested-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-02 22:58:25 -05:00
Petr Kubánek
0ba3b2ccc7 USB: ftdi_sio: add Zolix FTDI PID
Add support for Zolix Omni 1509 monochromator custom USB-RS232 converter.

Signed-off-by: Petr Kubánek <petr@kubanek.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-02 13:31:52 +01:00
Bjørn Mork
d4fa681541 USB: option: add Changhong CH690
New device with 3 serial interfaces:

 If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend) Sub=ff Prot=ff
 If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend) Sub=ff Prot=ff
 If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend) Sub=ff Prot=ff
 If#= 3 Alt= 0 #EPs= 2 Cls=08(stor) Sub=06 Prot=50

Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-02 13:31:50 +01:00
Sven Killig
c249f91140 USB: ftdi_sio: add PID/VID entries for ELV WS 300 PC II
Add PID/VID entries for ELV WS 300 PC II weather station

Signed-off-by: Sven Killig <sven@killig.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-02 13:28:42 +01:00