deliverable/linux.git
12 years agoMerge branch 'rmobile-fixes-for-linus' of git://github.com/pmundt/linux-sh into renes...
Arnd Bergmann [Thu, 22 Mar 2012 22:02:16 +0000 (22:02 +0000)] 
Merge branch 'rmobile-fixes-for-linus' of git://github.com/pmundt/linux-sh into renesas/soc

Conflicts:
arch/arm/mach-shmobile/board-ap4evb.c

This moves the addition of init_consistent_dma_size() from the board
files into the common sh7372_map_io() functions where all the other
contents of the board specific map_io calls have gone.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
12 years agoMerge branch 'renesas/fixes' into renesas/soc
Arnd Bergmann [Thu, 15 Mar 2012 17:26:43 +0000 (17:26 +0000)] 
Merge branch 'renesas/fixes' into renesas/soc

The fixes branch was merged into mainline just after v3.3-rc7,
I'm merging it into this branch to fix up a nontrivial merge
conflict. Unfortunately this means that we are now based on
a commit between -rc releases, which we normally try to avoid.

Conflicts:
arch/arm/mach-shmobile/board-mackerel.c

Resolution suggested by Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
12 years agoARM: mach-shmobile: ap4evb: Reserve DMA memory for the frame buffer
Kuninori Morimoto [Tue, 13 Mar 2012 01:55:23 +0000 (18:55 -0700)] 
ARM: mach-shmobile: ap4evb: Reserve DMA memory for the frame buffer

ap4evb board needs the same fix as
1740d3448012475f6b63172631c60cbcd1994a81
(ARM: mach-shmobile: mackerel: Reserve DMA memory for the frame buffer)

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Thu, 15 Mar 2012 00:16:45 +0000 (17:16 -0700)] 
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Been sitting on this for a while, but lets get this out the door.
  This fixes various important bugs for 3.3 final, along with a few more
  trivial ones.  Please pull!"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: fix ioc leak in put_io_context
  block, sx8: fix pointer math issue getting fw version
  Block: use a freezable workqueue for disk-event polling
  drivers/block/DAC960: fix -Wuninitialized warning
  drivers/block/DAC960: fix DAC960_V2_IOCTL_Opcode_T -Wenum-compare warning
  block: fix __blkdev_get and add_disk race condition
  block: Fix setting bio flags in drivers (sd_dif/floppy)
  block: Fix NULL pointer dereference in sd_revalidate_disk
  block: exit_io_context() should call elevator_exit_icq_fn()
  block: simplify ioc_release_fn()
  block: replace icq->changed with icq->flags

12 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Linus Torvalds [Thu, 15 Mar 2012 00:16:02 +0000 (17:16 -0700)] 
Merge tag 'for-linus' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "Another small batch of driver specific bug fixes, a couple more errors
  in the da9052 driver and a bad return value in the tps6524x driver."

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: da9052: Ensure the selected voltage falls within the specified range
  regulator: Set n_voltages for da9052 regulators
  regulator: Fix setting selector in tps6524x set_voltage function

12 years agoMerge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux...
Linus Torvalds [Thu, 15 Mar 2012 00:13:49 +0000 (17:13 -0700)] 
Merge branch 'stable' of git://git./linux/kernel/git/cmetcalf/linux-tile

Pull arch/tile update to run "make minconfig" on the tile defconfigs
from Chris Metcalf.

This removes almost three thousand lines of inane defconfig chatter.

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile/configs: convert to minimal configs via "make savedefconfig"

12 years agoarch/tile/configs: convert to minimal configs via "make savedefconfig"
Chris Metcalf [Wed, 14 Mar 2012 18:33:16 +0000 (14:33 -0400)] 
arch/tile/configs: convert to minimal configs via "make savedefconfig"

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
12 years agoblock: fix ioc leak in put_io_context
Xiaotian Feng [Wed, 14 Mar 2012 14:34:48 +0000 (15:34 +0100)] 
block: fix ioc leak in put_io_context

When put_io_context is called, if ioc->icq_list is empty and refcount
is 1, kernel will not free the ioc.

This is caught by following kmemleak:

unreferenced object 0xffff880036349fe0 (size 216):
  comm "sh", pid 2137, jiffies 4294931140 (age 290579.412s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    01 00 01 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........
  backtrace:
    [<ffffffff8169f926>] kmemleak_alloc+0x26/0x50
    [<ffffffff81195a9c>] kmem_cache_alloc_node+0x1cc/0x2a0
    [<ffffffff81356b67>] create_io_context_slowpath+0x27/0x130
    [<ffffffff81356d2b>] get_task_io_context+0xbb/0xf0
    [<ffffffff81055f0e>] copy_process+0x188e/0x18b0
    [<ffffffff8105609b>] do_fork+0x11b/0x420
    [<ffffffff810247f8>] sys_clone+0x28/0x30
    [<ffffffff816d3373>] stub_clone+0x13/0x20
    [<ffffffffffffffff>] 0xffffffffffffffff

ioc should be freed if ioc->icq_list is empty.
Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Wed, 14 Mar 2012 01:39:28 +0000 (18:39 -0700)] 
Merge git://git./linux/kernel/git/davem/sparc

Pull sparc updates from David Miller:
 "Please pull to get this fix for the sparc32 build when using a more
  recent binutils."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc32: Add -Av8 to assembler command line.

12 years agosparc32: Add -Av8 to assembler command line.
David S. Miller [Wed, 14 Mar 2012 01:19:51 +0000 (18:19 -0700)] 
sparc32: Add -Av8 to assembler command line.

Newer version of binutils are more strict about specifying the
correct options to enable certain classes of instructions.

The sparc32 build is done for v7 in order to support sun4c systems
which lack hardware integer multiply and divide instructions.

So we have to pass -Av8 when building the assembler routines that
use these instructions and get patched into the kernel when we find
out that we have a v8 capable cpu.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Wed, 14 Mar 2012 00:57:07 +0000 (17:57 -0700)] 
Merge git://git./linux/kernel/git/davem/net

Pull networking changes from David Miller:
 "The most important bit here is the TCP syncookies issue, which seems
  to have been busted for some time.  That fix has been verified in
  production by the reporter.

  1) Persistent TUN devices erroneously hold on to the network namespace
     in such a way that it cannot be shutdown.  Fix from Stanislav
     Kinsbursky with help from Eric Dumazet.

  2) TCP SYN cookies have been broken for a while due to how the route
     lookup flow key is managed, connections can be delayed by as much
     as 20 seconds due to this bug.  Fix from Eric Dumazet.

  3) Missing jiffies.h include in lib/dynamic_queue_limits.c can break
     the build, from Tom Herbert.

  4) Add USB device ID for Sitecom LN-031, from Joerg Neikes.

  5) Fix OOPS in delayed workqueue in iwlegacy, from Stanislaw Gruszka.

  6) rt2x00 TX queue can be disabled forever due to races, fix by
     synchronizing pause/unpause with a lock.  Also from Stanislaw
     Gruszka.

  7) Statistics and endian fix in bnx2x driver from Yuval Mintz, Eilon
     Greenstein, and Ariel Elior."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  tun: don't hold network namespace by tun sockets
  bnx2x: FCoE statistics id fixed
  bnx2x: dcb bit indices flags used as bits
  bnx2x: added cpu_to_le16 when preparing ramrod's data
  bnx2x: pfc statistics counts pfc events twice
  rt2x00: fix random stalls
  iwl3945: fix possible il->txq NULL pointer dereference in delayed works
  dql: Fix undefined jiffies
  tcp: fix syncookie regression
  usb: asix: Patch for Sitecom LN-031

12 years agoMerge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux...
Linus Torvalds [Wed, 14 Mar 2012 00:06:02 +0000 (17:06 -0700)] 
Merge branch 'stable' of git://git./linux/kernel/git/cmetcalf/linux-tile

Pull arch/tile update from Chris Metcalf
 "These include a couple of queued-up minor bug fixes from the
  community, a fix to unbreak the sysfs hooks in tile, and syncing up
  the defconfigs."

Ugh.  defconfigs updates without "make minconfig".  Tons of ugly
pointless lines there, I suspect.

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: Use set_current_blocked() and block_sigmask()
  arch/tile: misplaced parens near likely
  arch/tile: sync up the defconfig files to the tip
  arch/tile: Fix up from commit 8a25a2fd126c621f44f3aeaef80d51f00fc11639

12 years agoARM: shmobile: remove additional __io() macro use
Arnd Bergmann [Wed, 14 Mar 2012 00:05:42 +0000 (01:05 +0100)] 
ARM: shmobile: remove additional __io() macro use

setup-r8a7779.c has grown a new user of the __io() macro. Rob Herring's
PIO cleanup series already gets rid of all other uses in shmobile, so
we should ensure that this one gets removed as well.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 14 Mar 2012 00:04:50 +0000 (17:04 -0700)] 
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf record: Fix buffer overrun bug in tracepoint_id_to_path()
  perf/x86: Fix local vs remote memory events for NHM/WSM

12 years agoMerge git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Wed, 14 Mar 2012 00:03:53 +0000 (17:03 -0700)] 
Merge git://git.samba.org/sfrench/cifs-2.6

Pull CIFS fixes from Steve French.

* git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Do not kmalloc under the flocks spinlock
  cifs: possible memory leak in xattr.

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Wed, 14 Mar 2012 00:00:50 +0000 (17:00 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "A bunch of assorted fixes; Jan's freezing stuff still _not_ in there
  and neither is mm fun ;-/"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  restore smp_mb() in unlock_new_inode()
  vfs: fix return value from do_last()
  vfs: fix double put after complete_walk()
  udf: Fix deadlock in udf_release_file()
  vfs: Correctly set the dir i_mutex lockdep class

12 years agotile: Use set_current_blocked() and block_sigmask()
Matt Fleming [Tue, 14 Feb 2012 11:41:06 +0000 (11:41 +0000)] 
tile: Use set_current_blocked() and block_sigmask()

As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block
is pending in the shared queue.

Also, use the new helper function introduced in commit 5e6292c0f28f
("signal: add block_sigmask() for adding sigmask to current->blocked")
which centralises the code for updating current->blocked after
successfully delivering a signal and reduces the amount of duplicate
code across architectures. In the past some architectures got this
code wrong, so using this helper function should stop that from
happening again.

Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
12 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Tue, 13 Mar 2012 18:38:51 +0000 (14:38 -0400)] 
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem

12 years agoperf record: Fix buffer overrun bug in tracepoint_id_to_path()
Stephane Eranian [Tue, 13 Mar 2012 15:51:02 +0000 (16:51 +0100)] 
perf record: Fix buffer overrun bug in tracepoint_id_to_path()

This patch fixes a buffer overrun bug in
tracepoint_id_to_path(). The bug manisfested itself as a memory
error reported by perf record. I ran into it with perf sched:

 $ perf sched rec noploop 2 noploop for 2 seconds
 [ perf record: Woken up 14 times to write data ]
 [ perf record: Captured and wrote 42.701 MB perf.data (~1865622 samples) ]
 Fatal: No memory to alloc tracepoints list

It turned out that tracepoint_id_to_path() was reading the
tracepoint id using read() but the buffer was not large enough
to include the \n terminator for id with 4 digits or more.

The patch fixes the problem by extending the buffer to a more
reasonable size covering all possible id length include \n
terminator. Note that atoll() stops at the first non digit
character, thus it is not necessary to clear the buffer between
each read.

Signed-off-by: Stephane Eranian <eranian@google.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: fweisbec@gmail.com
Cc: dsahern@gmail.com
Link: http://lkml.kernel.org/r/20120313155102.GA6465@quad
Signed-off-by: Ingo Molnar <mingo@elte.hu>
12 years agoMerge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Linus Torvalds [Tue, 13 Mar 2012 05:59:34 +0000 (22:59 -0700)] 
Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

Pull x86 platfrm driver fixes from Matthew Garrett:
 "Some trivial patches that fix wifi on some Lenovos and avoid a
  potential memory corruption issue on some Panasonics, plus two
  straightforward new drivers that touch no existing code."

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
  panasonic-laptop: avoid overflow in acpi_pcc_hotkey_add()
  acer-wmi: No wifi rfkill on Lenovo machines
  Fujitsu tablet extras driver
  x86: Add amilo-rfkill driver for some Fujitsu-Siemens Amilo laptops

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
Linus Torvalds [Tue, 13 Mar 2012 05:53:37 +0000 (22:53 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci

Pull PCI changes from Jesse Barnes:
 "A single fix for a regression that affects some people who try to
  disable ASPM for whatever reason."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci:
  PCI: ignore pre-1.1 ASPM quirking when ASPM is disabled

12 years agoMerge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Linus Torvalds [Tue, 13 Mar 2012 05:50:20 +0000 (22:50 -0700)] 
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh-sci / PM: Avoid deadlocking runtime PM
  sh: fix up the ubc clock definition for sh7785.
  sh: add parameter for RSPI in clock-sh7757
  sh: Fix sh2a vbr table for more than 255 irqs

12 years agoMerge tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh
Linus Torvalds [Tue, 13 Mar 2012 05:47:20 +0000 (22:47 -0700)] 
Merge tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh

Pull SH/R-Mobile fixes from Paul Mundt.

* tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh:
  ARM: mach-shmobile: ap4evb: fixup fsi2_ak4643_info typo
  ARM: mach-shmobile: mackerel: Reserve DMA memory for the frame buffer
  ARM: mach-shmobile: Fix ag5evm compilation by including linux/videodev2.h
  ARM: mach-shmobile: Fix bonito compile breakage

12 years agotun: don't hold network namespace by tun sockets
Stanislav Kinsbursky [Mon, 12 Mar 2012 02:59:41 +0000 (02:59 +0000)] 
tun: don't hold network namespace by tun sockets

v3: added previously removed sock_put() to the tun_release() callback, because
sk_release_kernel() doesn't drop the socket reference.

v2: sk_release_kernel() used for socket release. Dummy tun_release() is
required for sk_release_kernel() ---> sock_release() ---> sock->ops->release()
call.

TUN was designed to destroy it's socket on network namesapce shutdown. But this
will never happen for persistent device, because it's socket holds network
namespace.
This patch removes of holding network namespace by TUN socket and replaces it
by creating socket in init_net and then changing it's net it to desired one. On
shutdown socket is moved back to init_net prior to final put.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobnx2x: FCoE statistics id fixed
Yuval Mintz [Mon, 12 Mar 2012 11:22:07 +0000 (11:22 +0000)] 
bnx2x: FCoE statistics id fixed

FCoE statistics ids were distinguished from the L2's statistics ids.
However, not all of the change was committed. This causes a possible
collision of indices when FCoE is present.

This patch fixes the issue.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobnx2x: dcb bit indices flags used as bits
Yuval Mintz [Mon, 12 Mar 2012 11:22:06 +0000 (11:22 +0000)] 
bnx2x: dcb bit indices flags used as bits

DCB flags were updated using the flags' bit offsets instead of
the actual bits. This is now fixed.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobnx2x: added cpu_to_le16 when preparing ramrod's data
Ariel Elior [Mon, 12 Mar 2012 11:22:05 +0000 (11:22 +0000)] 
bnx2x: added cpu_to_le16 when preparing ramrod's data

Fixed endianess issue when passing arguments to FW.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agobnx2x: pfc statistics counts pfc events twice
Yuval Mintz [Mon, 12 Mar 2012 11:22:04 +0000 (11:22 +0000)] 
bnx2x: pfc statistics counts pfc events twice

When pfc statistics were counted, the delta change from last count
was summed twice. This fixes the issue.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoARM: mach-shmobile: default to no earlytimer
Magnus Damm [Tue, 6 Mar 2012 08:37:09 +0000 (17:37 +0900)] 
ARM: mach-shmobile: default to no earlytimer

Now when all SoCs and boards are converted to use
shmobile_earlytimer_init(), change the default behavior
of shmobile_timer.init() from using early timer to
do nothing which is suitable for upcoming DT support.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: r8a7779 and Marzen timer rework
Magnus Damm [Tue, 6 Mar 2012 08:37:01 +0000 (17:37 +0900)] 
ARM: mach-shmobile: r8a7779 and Marzen timer rework

Move the SoC specific timer code from Marzen board code
to r8a7779 setup code. This makes is possible to share
the SoC specific timer code across boards and it also
removes the need for a board specific timer structure.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: r8a7740 and Bonito timer rework
Magnus Damm [Tue, 6 Mar 2012 08:36:53 +0000 (17:36 +0900)] 
ARM: mach-shmobile: r8a7740 and Bonito timer rework

Copy the SoC specific timer code from Bonito board code
to r8a7740 setup code. This makes is possible to share
the SoC specific timer code across boards. The Bonito
specific timer setup code tied to the FPGA is kept as-is.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh73a0, AG5EVM and Kota2 timer rework
Magnus Damm [Tue, 6 Mar 2012 08:36:45 +0000 (17:36 +0900)] 
ARM: mach-shmobile: sh73a0, AG5EVM and Kota2 timer rework

Move the SoC specific timer code from AG5EVM and Kota2
to sh73a0 setup code. This makes is possible to share
the SoC specific timer code across boards and it also
removes the need for a board specific timer structure.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7372, AP4EVB and Mackerel timer rework
Magnus Damm [Tue, 6 Mar 2012 08:36:37 +0000 (17:36 +0900)] 
ARM: mach-shmobile: sh7372, AP4EVB and Mackerel timer rework

Move the SoC specific timer code from AP4EVB and Mackerel
to sh7372 setup code. This makes is possible to share
the SoC specific timer code across boards and it also
removes the need for a board specific timer structure.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7377 and G4EVM timer rework
Magnus Damm [Tue, 6 Mar 2012 08:36:29 +0000 (17:36 +0900)] 
ARM: mach-shmobile: sh7377 and G4EVM timer rework

Move the SoC specific timer code from G4EVM board code
to sh7377 setup code. This makes is possible to share
the SoC specific timer code across boards and it also
removes the need for a board specific timer structure.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7367 and G3EVM timer rework
Magnus Damm [Tue, 6 Mar 2012 08:36:22 +0000 (17:36 +0900)] 
ARM: mach-shmobile: sh7367 and G3EVM timer rework

Move the SoC specific timer code from G3EVM board code
to sh7367 setup code. This makes is possible to share
the SoC specific timer code across boards and it also
removes the need for a board specific timer structure.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: add shmobile_earlytimer_init()
Magnus Damm [Tue, 6 Mar 2012 08:36:14 +0000 (17:36 +0900)] 
ARM: mach-shmobile: add shmobile_earlytimer_init()

Add shmobile_earlytimer_init() that can be used to
enable the earlytimer probing from the SoC code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: Move sh7372 AP4EVB external clk setup
Magnus Damm [Tue, 6 Mar 2012 07:31:55 +0000 (16:31 +0900)] 
ARM: mach-shmobile: Move sh7372 AP4EVB external clk setup

Move the board specific external clock setting for sh7372 AP4EVB
from machine_desc->sys_timer->init() to machine_desc->init_machine().

This is ground work for shmobile timer code consolidation.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: Move sh7372 Mackerel external clk setup
Magnus Damm [Tue, 6 Mar 2012 07:30:18 +0000 (16:30 +0900)] 
ARM: mach-shmobile: Move sh7372 Mackerel external clk setup

Move the board specific external clock setting for sh7372 Mackerel
from machine_desc->sys_timer->init() to machine_desc->init_machine().

This is ground work for shmobile timer code consolidation.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: rename clk_init() to shmobile_clk_init()
Magnus Damm [Wed, 29 Feb 2012 12:41:30 +0000 (21:41 +0900)] 
ARM: mach-shmobile: rename clk_init() to shmobile_clk_init()

Rename clk_init() to shmobile_clk_init() to avoid a potential
future name space collision with the common clock framework.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: r8a7779 L2 cache support
Magnus Damm [Thu, 1 Mar 2012 03:48:03 +0000 (12:48 +0900)] 
ARM: mach-shmobile: r8a7779 L2 cache support

L2 Cache support for r8a7779. Settings taken from
out-of-tree kernel patches by Kouei Abe.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: r8a7779 map_io and init_early update
Magnus Damm [Wed, 29 Feb 2012 12:37:43 +0000 (21:37 +0900)] 
ARM: mach-shmobile: r8a7779 map_io and init_early update

Update the r8a7779 SoC and the Marzen board to make use of
the functions r8a7779_map_io() and r8a7779_add_early_devices().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: r8a7740 map_io and init_early update
Magnus Damm [Wed, 29 Feb 2012 12:37:35 +0000 (21:37 +0900)] 
ARM: mach-shmobile: r8a7740 map_io and init_early update

Update the r8a7740 SoC and the Bonito board to make use of
the functions r8a7740_map_io() and r8a7740_add_early_devices().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh73a0 map_io and init_early update
Magnus Damm [Wed, 29 Feb 2012 12:37:27 +0000 (21:37 +0900)] 
ARM: mach-shmobile: sh73a0 map_io and init_early update

Update the sh73a0 SoC and the AG5EVM and Kota2 boards to make use
of the functions sh73a0_map_io() and sh73a0_add_early_devices().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7372 map_io and init_early update
Magnus Damm [Wed, 29 Feb 2012 12:37:19 +0000 (21:37 +0900)] 
ARM: mach-shmobile: sh7372 map_io and init_early update

Update the sh7372 SoC and the AP4EVB and Mackerel boards to make use
of the functions sh7372_map_io() and sh7372_add_early_devices().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7377 map_io and init_early update
Magnus Damm [Wed, 29 Feb 2012 12:37:12 +0000 (21:37 +0900)] 
ARM: mach-shmobile: sh7377 map_io and init_early update

Update the sh7377 SoC and the G4EVM board to make use of the
functions sh7377_map_io() and sh7377_add_early_devices().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7367 map_io and init_early update
Magnus Damm [Wed, 29 Feb 2012 12:37:04 +0000 (21:37 +0900)] 
ARM: mach-shmobile: sh7367 map_io and init_early update

Update the sh7367 SoC and the G3EVM board to make use of the
functions sh7367_map_io() and sh7367_add_early_devices().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: remove clk_ops
Magnus Damm [Wed, 29 Feb 2012 13:18:19 +0000 (22:18 +0900)] 
sh: remove clk_ops

Now when all clk_ops have been renamed it is
safe to rename clk_ops to sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: board sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:18:11 +0000 (22:18 +0900)] 
sh: board sh_clk_ops rename

Convert remaining sh board code to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: sh5 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:18:03 +0000 (22:18 +0900)] 
sh: sh5 sh_clk_ops rename

Convert sh5 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: sh4a sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:17:55 +0000 (22:17 +0900)] 
sh: sh4a sh_clk_ops rename

Convert sh4a SoCs to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: sh4 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:17:47 +0000 (22:17 +0900)] 
sh: sh4 sh_clk_ops rename

Convert sh4 SoCs to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: sh3 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:17:40 +0000 (22:17 +0900)] 
sh: sh3 sh_clk_ops rename

Convert sh3 SoCs to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: sh2a sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:17:32 +0000 (22:17 +0900)] 
sh: sh2a sh_clk_ops rename

Convert sh2a SoCs to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: sh2 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:17:24 +0000 (22:17 +0900)] 
sh: sh2 sh_clk_ops rename

Convert sh2 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: sh header sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:17:16 +0000 (22:17 +0900)] 
sh: sh header sh_clk_ops rename

Convert the sh include asm/clock.h to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: r8a7779 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:17:08 +0000 (22:17 +0900)] 
ARM: mach-shmobile: r8a7779 sh_clk_ops rename

Convert r8a7779 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: r8a7740 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:17:00 +0000 (22:17 +0900)] 
ARM: mach-shmobile: r8a7740 sh_clk_ops rename

Convert r8a7740 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh73a0 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:16:52 +0000 (22:16 +0900)] 
ARM: mach-shmobile: sh73a0 sh_clk_ops rename

Convert sh73a0 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7372 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:16:44 +0000 (22:16 +0900)] 
ARM: mach-shmobile: sh7372 sh_clk_ops rename

Convert sh7372 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7377 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:16:36 +0000 (22:16 +0900)] 
ARM: mach-shmobile: sh7377 sh_clk_ops rename

Convert sh7377 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoARM: mach-shmobile: sh7367 sh_clk_ops rename
Magnus Damm [Wed, 29 Feb 2012 13:16:29 +0000 (22:16 +0900)] 
ARM: mach-shmobile: sh7367 sh_clk_ops rename

Convert sh7367 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: convert cpg code to sh_clk_ops
Magnus Damm [Wed, 29 Feb 2012 13:16:21 +0000 (22:16 +0900)] 
sh: convert cpg code to sh_clk_ops

Convert the CPG code to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agosh: introduce sh_clk_ops in parallel with clk_ops
Magnus Damm [Wed, 29 Feb 2012 13:16:13 +0000 (22:16 +0900)] 
sh: introduce sh_clk_ops in parallel with clk_ops

Introduce sh_clk_ops in parallel with clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
12 years agoperf/x86: Fix local vs remote memory events for NHM/WSM
Peter Zijlstra [Mon, 5 Mar 2012 22:59:25 +0000 (23:59 +0100)] 
perf/x86: Fix local vs remote memory events for NHM/WSM

Verified using the below proglet.. before:

[root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 0
remote write

 Performance counter stats for './numa 0':

         2,101,554 node-stores
         2,096,931 node-store-misses

       5.021546079 seconds time elapsed

[root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 1
local write

 Performance counter stats for './numa 1':

           501,137 node-stores
               199 node-store-misses

       5.124451068 seconds time elapsed

After:

[root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 0
remote write

 Performance counter stats for './numa 0':

         2,107,516 node-stores
         2,097,187 node-store-misses

       5.012755149 seconds time elapsed

[root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 1
local write

 Performance counter stats for './numa 1':

         2,063,355 node-stores
               165 node-store-misses

       5.082091494 seconds time elapsed

#define _GNU_SOURCE

#include <sched.h>
#include <stdio.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <dirent.h>
#include <signal.h>
#include <unistd.h>
#include <numaif.h>
#include <stdlib.h>

#define SIZE (32*1024*1024)

volatile int done;

void sig_done(int sig)
{
done = 1;
}

int main(int argc, char **argv)
{
cpu_set_t *mask, *mask2;
size_t size;
int i, err, t;
int nrcpus = 1024;
char *mem;
unsigned long nodemask = 0x01; /* node 0 */
DIR *node;
struct dirent *de;
int read = 0;
int local = 0;

if (argc < 2) {
printf("usage: %s [0-3]\n", argv[0]);
printf("  bit0 - local/remote\n");
printf("  bit1 - read/write\n");
exit(0);
}

switch (atoi(argv[1])) {
case 0:
printf("remote write\n");
break;
case 1:
printf("local write\n");
local = 1;
break;
case 2:
printf("remote read\n");
read = 1;
break;
case 3:
printf("local read\n");
local = 1;
read = 1;
break;
}

mask = CPU_ALLOC(nrcpus);
size = CPU_ALLOC_SIZE(nrcpus);
CPU_ZERO_S(size, mask);

node = opendir("/sys/devices/system/node/node0/");
if (!node)
perror("opendir");
while ((de = readdir(node))) {
int cpu;

if (sscanf(de->d_name, "cpu%d", &cpu) == 1)
CPU_SET_S(cpu, size, mask);
}
closedir(node);

mask2 = CPU_ALLOC(nrcpus);
CPU_ZERO_S(size, mask2);
for (i = 0; i < size; i++)
CPU_SET_S(i, size, mask2);
CPU_XOR_S(size, mask2, mask2, mask); // invert

if (!local)
mask = mask2;

err = sched_setaffinity(0, size, mask);
if (err)
perror("sched_setaffinity");

mem = mmap(0, SIZE, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
err = mbind(mem, SIZE, MPOL_BIND, &nodemask, 8*sizeof(nodemask), MPOL_MF_MOVE);
if (err)
perror("mbind");

signal(SIGALRM, sig_done);
alarm(5);

if (!read) {
while (!done) {
for (i = 0; i < SIZE; i++)
mem[i] = 0x01;
}
} else {
while (!done) {
for (i = 0; i < SIZE; i++)
t += *(volatile char *)(mem + i);
}
}

return 0;
}

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/n/tip-tq73sxus35xmqpojf7ootxgs@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
12 years agoarch/tile: misplaced parens near likely
roel [Mon, 12 Dec 2011 22:34:06 +0000 (23:34 +0100)] 
arch/tile: misplaced parens near likely

Parentheses were missing.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
12 years agoarch/tile: sync up the defconfig files to the tip
Chris Metcalf [Mon, 12 Mar 2012 19:22:52 +0000 (15:22 -0400)] 
arch/tile: sync up the defconfig files to the tip

This was inspired by mchehab@redhat.com's observation that we
didn't have EDAC configured on by default in both files.  In addition,
we were setting INITRAMFS_SOURCE to a non-empty string, which isn't
a very common default and required editing to do test builds.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
12 years agoarch/tile: Fix up from commit 8a25a2fd126c621f44f3aeaef80d51f00fc11639
Chris Metcalf [Mon, 12 Mar 2012 19:15:21 +0000 (15:15 -0400)] 
arch/tile: Fix up from commit 8a25a2fd126c621f44f3aeaef80d51f00fc11639

This was Kay Siever's bombing to convert 'cpu' to a regular subsystem.
The change left a bogus second argument to sysfs_create_file().

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
12 years agort2x00: fix random stalls
Stanislaw Gruszka [Fri, 9 Mar 2012 11:39:54 +0000 (12:39 +0100)] 
rt2x00: fix random stalls

Is possible that we stop queue and then do not wake up it again,
especially when packets are transmitted fast. That can be easily
reproduced with modified tx queue entry_num to some small value e.g. 16.

If mac80211 already hold local->queue_stop_reason_lock, then we can wait
on that lock in both rt2x00queue_pause_queue() and
rt2x00queue_unpause_queue(). After drooping ->queue_stop_reason_lock
is possible that __ieee80211_wake_queue() will be performed before
__ieee80211_stop_queue(), hence we stop queue and newer wake up it
again.

Another race condition is possible when between rt2x00queue_threshold()
check and rt2x00queue_pause_queue() we will process all pending tx
buffers on different cpu. This might happen if for example interrupt
will be triggered on cpu performing rt2x00mac_tx().

To prevent race conditions serialize pause/unpause by queue->tx_lock.

Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agoiwl3945: fix possible il->txq NULL pointer dereference in delayed works
Stanislaw Gruszka [Thu, 8 Mar 2012 12:16:01 +0000 (13:16 +0100)] 
iwl3945: fix possible il->txq NULL pointer dereference in delayed works

On il3945_down procedure we free tx queue data and nullify il->txq
pointer. After that we drop mutex and then cancel delayed works. There
is possibility, that after drooping mutex and before the cancel, some
delayed work will start and crash while trying to send commands to
the device. For example, here is reported crash in
il3945_bg_reg_txpower_periodic():
https://bugzilla.kernel.org/show_bug.cgi?id=42766#c10

Patch fix problem by adding il->txq check on works that send commands,
hence utilize tx queue.

Reported-by: Clemens Eisserer <linuxhippy@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
12 years agopanasonic-laptop: avoid overflow in acpi_pcc_hotkey_add()
Xi Wang [Thu, 29 Dec 2011 04:49:06 +0000 (23:49 -0500)] 
panasonic-laptop: avoid overflow in acpi_pcc_hotkey_add()

num_sifr could go negative since acpi_pcc_get_sqty() returns -EINVAL
on error.  Then it could bypass the sanity check (num_sifr > 255).
The subsequent call to kzalloc() would allocate a small buffer, leading
to a memory corruption.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoacer-wmi: No wifi rfkill on Lenovo machines
Ike Panhc [Fri, 3 Feb 2012 08:46:39 +0000 (16:46 +0800)] 
acer-wmi: No wifi rfkill on Lenovo machines

We have several reports which says acer-wmi is loaded on ideapads
and register rfkill for wifi which can not be unblocked.

Since ideapad-laptop also register rfkill for wifi and it works
reliably, it will be fine acer-wmi is not going to register rfkill
for wifi once VPC2004 is found.

Also put IBM0068/LEN0068 in the list. Though thinkpad_acpi has no
wifi rfkill capability, there are reports which says acer-wmi also
block wireless on Thinkpad E520/E420.

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agoFujitsu tablet extras driver
Robert Gerlach [Wed, 18 Jan 2012 13:26:22 +0000 (14:26 +0100)] 
Fujitsu tablet extras driver

This patch adds support for some of the devices within a wide variety
of Fujitsu Tablet Computers, both convertibles and slates. Primarily
it allows for the automatic detection of the tablet/notebook mode for
convertible tablet pc's, and orientation for docked slates. It also
adds support for the application panel buttons usually found next to
the tablet screen, and docking station detection for slates.

Signed-off-by: Robert Gerlach <khnz@gmx.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agox86: Add amilo-rfkill driver for some Fujitsu-Siemens Amilo laptops
Ben Hutchings [Fri, 25 Nov 2011 04:09:37 +0000 (04:09 +0000)] 
x86: Add amilo-rfkill driver for some Fujitsu-Siemens Amilo laptops

An rfkill driver based on the fsaa1655g and fsam7440 drivers for
Fujitsu-Siemens Amilo A1655 and M7440 models found at:

http://sourceforge.net/projects/fsaa1655g/
http://sourceforge.net/projects/fsam7440/

This adds DMI matching, replaces the procfs files with rfkill devices,
and uses the proper functions to write to the i8042 safely.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
12 years agodql: Fix undefined jiffies
Tom Herbert [Mon, 12 Mar 2012 02:59:43 +0000 (19:59 -0700)] 
dql: Fix undefined jiffies

In some configurations, jiffies may be undefined in
lib/dynamic_queue_limits.c.  Adding include of jiffies.h to avoid
this.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agotcp: fix syncookie regression
Eric Dumazet [Sat, 10 Mar 2012 09:20:21 +0000 (09:20 +0000)] 
tcp: fix syncookie regression

commit ea4fc0d619 (ipv4: Don't use rt->rt_{src,dst} in ip_queue_xmit())
added a serious regression on synflood handling.

Simon Kirby discovered a successful connection was delayed by 20 seconds
before being responsive.

In my tests, I discovered that xmit frames were lost, and needed ~4
retransmits and a socket dst rebuild before being really sent.

In case of syncookie initiated connection, we use a different path to
initialize the socket dst, and inet->cork.fl.u.ip4 is left cleared.

As ip_queue_xmit() now depends on inet flow being setup, fix this by
copying the temp flowi4 we use in cookie_v4_check().

Reported-by: Simon Kirby <sim@netnation.com>
Bisected-by: Simon Kirby <sim@netnation.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousb: asix: Patch for Sitecom LN-031
Joerg Neikes [Thu, 8 Mar 2012 22:44:03 +0000 (22:44 +0000)] 
usb: asix: Patch for Sitecom LN-031

This patch adds support for the Sitecom LN-031 USB adapter with a AX88178 chip.

Added USB id to find correct driver for AX88178 1000 Ethernet adapter.

Signed-off-by: Joerg Neikes <j.neikes@midlandgate.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoregulator: da9052: Ensure the selected voltage falls within the specified range
Axel Lin [Mon, 5 Mar 2012 12:27:56 +0000 (20:27 +0800)] 
regulator: da9052: Ensure the selected voltage falls within the specified range

Integer division may truncate the result, use DIV_ROUND_UP to ensure the
selected voltage falls within the specified range.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
12 years agoregulator: Set n_voltages for da9052 regulators
Axel Lin [Mon, 5 Mar 2012 12:04:32 +0000 (20:04 +0800)] 
regulator: Set n_voltages for da9052 regulators

The n_voltages setting for all LDOs and DCDCs are missing in current code.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
12 years agoregulator: Fix setting selector in tps6524x set_voltage function
Axel Lin [Thu, 8 Mar 2012 02:02:17 +0000 (10:02 +0800)] 
regulator: Fix setting selector in tps6524x set_voltage function

Don't assign the voltage to selector.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
12 years agorestore smp_mb() in unlock_new_inode()
Al Viro [Sat, 10 Mar 2012 22:07:28 +0000 (17:07 -0500)] 
restore smp_mb() in unlock_new_inode()

wait_on_inode() doesn't have ->i_lock

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: fix return value from do_last()
Miklos Szeredi [Tue, 6 Mar 2012 12:56:34 +0000 (13:56 +0100)] 
vfs: fix return value from do_last()

complete_walk() returns either ECHILD or ESTALE.  do_last() turns this into
ECHILD unconditionally.  If not in RCU mode, this error will reach userspace
which is complete nonsense.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: fix double put after complete_walk()
Miklos Szeredi [Tue, 6 Mar 2012 12:56:33 +0000 (13:56 +0100)] 
vfs: fix double put after complete_walk()

complete_walk() already puts nd->path, no need to do it again at cleanup time.

This would result in Oopses if triggered, apparently the codepath is not too
well exercised.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoLinux 3.3-rc7
Linus Torvalds [Sat, 10 Mar 2012 21:49:52 +0000 (13:49 -0800)] 
Linux 3.3-rc7

12 years agoudf: Fix deadlock in udf_release_file()
Jan Kara [Mon, 20 Feb 2012 16:54:00 +0000 (17:54 +0100)] 
udf: Fix deadlock in udf_release_file()

udf_release_file() can be called from munmap() path with mmap_sem held.  Thus
we cannot take i_mutex there because that ranks above mmap_sem. Luckily,
i_mutex is not needed in udf_release_file() anymore since protection by
i_data_sem is enough to protect from races with write and truncate.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: Correctly set the dir i_mutex lockdep class
Tyler Hicks [Mon, 12 Dec 2011 16:02:30 +0000 (10:02 -0600)] 
vfs: Correctly set the dir i_mutex lockdep class

9a7aa12f3911853a introduced additional logic around setting the i_mutex
lockdep class for directory inodes. The idea was that some filesystems
may want their own special lockdep class for different directory
inodes and calling unlock_new_inode() should not clobber one of
those special classes.

I believe that the added conditional, around the *negated* return value
of lockdep_match_class(), caused directory inodes to be placed in the
wrong lockdep class.

inode_init_always() sets the i_mutex lockdep class with i_mutex_key for
all inodes. If the filesystem did not change the class during inode
initialization, then the conditional mentioned above was false and the
directory inode was incorrectly left in the non-directory lockdep class.
If the filesystem did set a special lockdep class, then the conditional
mentioned above was true and that class was clobbered with
i_mutex_dir_key.

This patch removes the negation from the conditional so that the i_mutex
lockdep class is properly set for directory inodes. Special classes are
preserved and directory inodes with unmodified classes are set with
i_mutex_dir_key.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoaio: fix the "too late munmap()" race
Al Viro [Thu, 8 Mar 2012 17:51:19 +0000 (17:51 +0000)] 
aio: fix the "too late munmap()" race

Current code has put_ioctx() called asynchronously from aio_fput_routine();
that's done *after* we have killed the request that used to pin ioctx,
so there's nothing to stop io_destroy() waiting in wait_for_all_aios()
from progressing.  As the result, we can end up with async call of
put_ioctx() being the last one and possibly happening during exit_mmap()
or elf_core_dump(), neither of which expects stray munmap() being done
to them...

We do need to prevent _freeing_ ioctx until aio_fput_routine() is done
with that, but that's all we care about - neither io_destroy() nor
exit_aio() will progress past wait_for_all_aios() until aio_fput_routine()
does really_put_req(), so the ioctx teardown won't be done until then
and we don't care about the contents of ioctx past that point.

Since actual freeing of these suckers is RCU-delayed, we don't need to
bump ioctx refcount when request goes into list for async removal.
All we need is rcu_read_lock held just over the ->ctx_lock-protected
area in aio_fput_routine().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Benjamin LaHaise <bcrl@kvack.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoaio: fix io_setup/io_destroy race
Al Viro [Wed, 7 Mar 2012 05:16:35 +0000 (05:16 +0000)] 
aio: fix io_setup/io_destroy race

Have ioctx_alloc() return an extra reference, so that caller would drop it
on success and not bother with re-grabbing it on failure exit.  The current
code is obviously broken - io_destroy() from another thread that managed
to guess the address io_setup() would've returned would free ioctx right
under us; gets especially interesting if aio_context_t * we pass to
io_setup() points to PROT_READ mapping, so put_user() fails and we end
up doing io_destroy() on kioctx another thread has just got freed...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Benjamin LaHaise <bcrl@kvack.org>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sat, 10 Mar 2012 02:09:18 +0000 (18:09 -0800)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs updates from Chris Mason:
 "I have two additional and btrfs fixes in my for-linus branch.  One is
  a casting error that leads to memory corruption on i386 during scrub,
  and the other fixes a corner case in the backref walking code (also
  triggered by scrub)."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix casting error in scrub reada code
  btrfs: fix locking issues in find_parent_nodes()

12 years agomemcg: revert fix to mapcount check for this release
Hugh Dickins [Fri, 9 Mar 2012 21:37:32 +0000 (13:37 -0800)] 
memcg: revert fix to mapcount check for this release

Respectfully revert commit e6ca7b89dc76 "memcg: fix mapcount check
in move charge code for anonymous page" for the 3.3 release, so that
it behaves exactly like releases 2.6.35 through 3.2 in this respect.

Horiguchi-san's commit is correct in itself, 1 makes much more sense
than 2 in that check; but it does not go far enough - swapcount
should be considered too - if we really want such a check at all.

We appear to have reached agreement now, and expect that 3.4 will
remove the mapcount check, but had better not make 3.3 different.

Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agox86: Derandom delay_tsc for 64 bit
Thomas Gleixner [Fri, 9 Mar 2012 19:55:10 +0000 (20:55 +0100)] 
x86: Derandom delay_tsc for 64 bit

Commit f0fbf0abc093 ("x86: integrate delay functions") converted
delay_tsc() into a random delay generator for 64 bit.  The reason is
that it merged the mostly identical versions of delay_32.c and
delay_64.c.  Though the subtle difference of the result was:

 static void delay_tsc(unsigned long loops)
 {
- unsigned bclock, now;
+ unsigned long bclock, now;

Now the function uses rdtscl() which returns the lower 32bit of the
TSC. On 32bit that's not problematic as unsigned long is 32bit. On 64
bit this fails when the lower 32bit are close to wrap around when
bclock is read, because the following check

       if ((now - bclock) >= loops)
           break;

evaluated to true on 64bit for e.g. bclock = 0xffffffff and now = 0
because the unsigned long (now - bclock) of these values results in
0xffffffff00000001 which is definitely larger than the loops
value. That explains Tvortkos observation:

"Because I am seeing udelay(500) (_occasionally_) being short, and
 that by delaying for some duration between 0us (yep) and 491us."

Make those variables explicitely u32 again, so this works for both 32
and 64 bit.

Reported-by: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org # >= 2.6.27
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Fri, 9 Mar 2012 20:14:23 +0000 (12:14 -0800)] 
Merge tag 'sound-fixes' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Nothing exciting here: just a few regression fixes for HD-audio and
  ASoC, also the support of missing 32bit compat ioctl for HDSPM."

* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hdspm - Provide ioctl_compat
  ALSA: hda/realtek - Apply the coef-setup only to ALC269VB
  ALSA: hda - add quirk to detect CD input on Gigabyte EP45-DS3
  ASoC: neo1973: fix neo1973 wm8753 initialization

12 years agoMAINTAINERS: new git entry for arm/mach-msm
David Brown [Fri, 9 Mar 2012 19:39:32 +0000 (11:39 -0800)] 
MAINTAINERS: new git entry for arm/mach-msm

The msm git tree moved to

  git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm.git

Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
Linus Torvalds [Fri, 9 Mar 2012 15:27:38 +0000 (07:27 -0800)] 
Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

Pull C6X fix from Mark Salter:
 "Fix for C6X KSTK_EIP and KSTK_ESP macros."

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  C6X: fix KSTK_EIP and KSTK_ESP macros

12 years agoMerge tag 'iommu-fixes-v3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 9 Mar 2012 15:26:25 +0000 (07:26 -0800)] 
Merge tag 'iommu-fixes-v3.3-rc6' of git://git./linux/kernel/git/joro/iommu

Pull two IOMMU fixes from Joerg Roedel:
 "The first is an additional fix for the OMAP initialization order issue
  and the second patch fixes a possible section mismatch which can lead
  to a kernel crash in the AMD IOMMU driver when suspend/resume is used
  and the compiler has not inlined the iommu_set_device_table function."

* tag 'iommu-fixes-v3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  x86/amd: iommu_set_device_table() must not be __init
  ARM: OMAP: fix iommu, not mailbox

12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 9 Mar 2012 15:23:17 +0000 (07:23 -0800)] 
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull radeon drm stuff from Dave Airlie:
 "Just some radeon fixes, one is for an oops where we run out of ioremap
  space on some big hardware systems in 32-bit mode, stuff doesn't work
  properly but at least the machine will boot.

  One regression fix, and two bugs, one hw, one blit code."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms: fix hdmi duallink checks
  drm/radeon/kms: set SX_MISC in the r6xx blit code (v2)
  drm/radeon: deal with errors from framebuffer init path.
  drm/radeon: fix a semaphore deadlock on pre cayman asics

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 9 Mar 2012 15:14:44 +0000 (07:14 -0800)] 
Merge git://git./linux/kernel/git/davem/net

Pull networking from David Miller:

1) IPV4 routing metrics can become stale when routes are changed by the
   administrator, fix from Steffen Klassert.

2) atl1c does "val |= XXX;" where XXX is a bit number not a bit mask,
   fix by using set_bit.  From Dan Carpenter.

3) Memory accounting bug in carl9170 driver results in wedged TX queue.
   Fix from Nicolas Cavallari.

4) iwlwifi accidently uses "sizeof(ptr)" instead of "sizeof(*ptr)", fix
   from Johannes Berg.

5) Openvswitch doesn't honor dp_ifindex when doing vport lookups, fix
   from Ben Pfaff.

6) ehea conversion to 64-bit stats lost multicast and rx_errors
   accounting, fix from Eric Dumazet.

7) Bridge state transition logging in br_stp_disable_port() is busted,
   it's emitted at the wrong time and the message is in the wrong tense,
   fix from Paulius Zaleckas.

8) mlx4 device erroneously invokes the queue resize firmware operation
   twice, fix from Jack Morgenstein.

9) Fix deadlock in usbnet, need to drop lock when invoking usb_unlink_urb()
   otherwise we recurse into taking it again.  Fix from Sebastian Siewior.

10) hyperv network driver uses the wrong driver name string, fix from
    Haiyang Zhang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net/hyperv: Use the built-in macro KBUILD_MODNAME for this driver
  net/usbnet: avoid recursive locking in usbnet_stop()
  route: Remove redirect_genid
  inetpeer: Invalidate the inetpeer tree along with the routing cache
  mlx4_core: fix bug in modify_cq wrapper for resize flow.
  atl1c: set ATL1C_WORK_EVENT_RESET bit correctly
  bridge: fix state reporting when port is disabled
  bridge: br_log_state() s/entering/entered/
  ehea: restore multicast and rx_errors fields
  openvswitch: Fix checksum update for actions on UDP packets.
  openvswitch: Honor dp_ifindex, when specified, for vport lookup by name.
  iwlwifi: fix wowlan suspend
  mwifiex: reset encryption mode flag before association
  carl9170: fix frame delivery if sta is in powersave mode
  carl9170: Fix memory accounting when sta is in power-save mode.

12 years agosh-sci / PM: Avoid deadlocking runtime PM
Rafael J. Wysocki [Fri, 9 Mar 2012 03:59:44 +0000 (12:59 +0900)] 
sh-sci / PM: Avoid deadlocking runtime PM

The runtime PM of sh-sci devices is enabled when sci_probe() returns,
so the pm_runtime_put_sync() executed by driver_probe_device()
attempts to suspend the device.  Then, in some situations, a
diagnostic message is printed to the console by one of the runtime
suspend routines handling the sh-sci device, which causes synchronous
runtime resume to be started from the device's own runtime suspend
callback.  This causes rpm_resume() to be run eventually, which sees
the RPM_SUSPENDING status set by rpm_suspend() and waits for it to
change.  However, the device's runtime PM status cannot change at
that point, because the routine that has set it waits for the
rpm_suspend() to return.  A deadlock occurs as a result.

To avoid that make sci_init_single() increment the device's
runtime PM usage counter, so that it cannot be suspended by
driver_probe_device().  That counter has to be decremented
eventually, so make sci_startup() do that before starting to
actually use the device and make sci_shutdown() increment it
again before returning to balance the incrementation carried out by
sci_startup().

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoMerge tag 'fixes-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Fri, 9 Mar 2012 01:32:42 +0000 (17:32 -0800)] 
Merge tag 'fixes-urgent' of git://git./linux/kernel/git/arm/arm-soc

Pull last minute fixes from Olof Johansson:
 "One samsung build fix due to a mis-applied patch, and a small set of
  OMAP fixes.  This should be the last from arm-soc for 3.3, hopefully."

* tag 'fixes-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: S3C2440: Fixed build error for s3c244x
  ARM: OMAP2+: Fix module build errors with CONFIG_OMAP4_ERRATA_I688
  ARM: OMAP: id: Add missing break statement in omap3xxx_check_revision
  ARM: OMAP2+: Remove apply_uV constraints for fixed regulator
  ARM: OMAP: irqs: Fix NR_IRQS value to handle PRCM interrupts

12 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Linus Torvalds [Fri, 9 Mar 2012 01:25:17 +0000 (17:25 -0800)] 
Merge tag 'for-linus' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "Another small, clear fix in a specific driver."

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: tps65910: Configure correct value for VDDCTRL vout reg

12 years agoMerge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Fri, 9 Mar 2012 01:24:27 +0000 (17:24 -0800)] 
Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull minor devicetree bug fixes and documentation updates from Grant Likely:
 "Fixes up a duplicate #include, adds an empty implementation of
  of_find_compatible_node() and make git ignore .dtb files.  And fix up
  bus name on OF described PHYs.  Nothing exciting here."

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  doc: dt: Fix broken reference in gpio-leds documentation
  of/mdio: fix fixed link bus name
  of/fdt.c: asm/setup.h included twice
  of: add picochip vendor prefix
  dt: add empty of_find_compatible_node function
  ARM: devicetree: Add .dtb files to arch/arm/boot/.gitignore

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