firefly-linux-kernel-4.4.55.git
12 years agoMerge branch 'depends/omap/gpio/runtime-pm-cleanup' into next/cleanup
Arnd Bergmann [Fri, 2 Mar 2012 13:05:00 +0000 (13:05 +0000)]
Merge branch 'depends/omap/gpio/runtime-pm-cleanup' into next/cleanup

Conflicts:
arch/arm/mach-omap1/gpio16xx.c
drivers/gpio/gpio-omap.c

Merge in the runtime-pm-cleanup branch from the gpio tree into
next/cleanup, this resolves a nonobvious merge conflict between
the two branches. Both branches move parts of the gpio-omap
driver into platform code, this takes the superset of both
changes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
12 years agoMerge branch 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux...
Arnd Bergmann [Wed, 29 Feb 2012 21:17:30 +0000 (21:17 +0000)]
Merge branch 'cleanup' of git://git./linux/kernel/git/tmlind/linux-omap into next/cleanup

* 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix L4_EMU_34XX_BASE error after iomap changes
  ARM: OMAP2+: Limit omap_read/write usage to legacy USB drivers
  ARM: OMAP: Remove plat/io.h by splitting it into mach/io.h and mach/hardware.h
  ARM: OMAP2+: Move most of plat/io.h into local iomap.h
  ARM: OMAP1: Move most of plat/io.h into local iomap.h
  ARM: OMAP1: Move 16xx GPIO system clock to platform init code
  ARM: OMAP: Move omap_init_consistent_dma_size() to local common.h
  ARM: OMAP2+: Move SDRC related functions from io.h into local common.h
  ARM: OMAP2+: Drop DISPC L3 firewall code
  ARM: OMAP2xxx: PM: remove obsolete timer disable code in the suspend path
  ARM: OMAP: McSPI: Remove unused flag from struct omap2_mcspi_device_config

(update to latest rmk/for-arm-soc branch)

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
12 years agoARM: OMAP2+: Fix L4_EMU_34XX_BASE error after iomap changes
Tony Lindgren [Wed, 29 Feb 2012 01:28:09 +0000 (17:28 -0800)]
ARM: OMAP2+: Fix L4_EMU_34XX_BASE error after iomap changes

With the introduction of iomap changes platform init code
fails for emu.c if CONFIG_OMAP3_EMU is selected:

arch/arm/mach-omap2/emu.c:35:8: error:
'L4_EMU_34XX_BASE' undeclared here (not in a function)

Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoMerge branch 'iomap' into cleanup
Tony Lindgren [Tue, 28 Feb 2012 22:27:01 +0000 (14:27 -0800)]
Merge branch 'iomap' into cleanup

12 years agoMerge branch 'cleanup-3.4' of git://github.com/hzhuang1/linux into next/cleanup
Arnd Bergmann [Tue, 28 Feb 2012 12:39:56 +0000 (12:39 +0000)]
Merge branch 'cleanup-3.4' of git://github.com/hzhuang1/linux into next/cleanup

* 'cleanup-3.4' of git://github.com/hzhuang1/linux: (2 commits)
  rtc: sa1100: remove verification code of alarm
  rtc: sa1100: remove periodic code

(update to v3.3-rc5)

12 years agortc: sa1100: remove verification code of alarm
Haojian Zhuang [Mon, 20 Feb 2012 11:49:30 +0000 (19:49 +0800)]
rtc: sa1100: remove verification code of alarm

Since next alarm time is already calculated in rtc common interface, we
needn't keep this logic in rtc-sa1100.c any more.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
12 years agortc: sa1100: remove periodic code
Haojian Zhuang [Mon, 20 Feb 2012 08:34:05 +0000 (16:34 +0800)]
rtc: sa1100: remove periodic code

Since periodic timer is already supported by hrtimer in rtc interface,
we needn't keep the duplicated code in rtc-sa1100.c any more.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
12 years agoMerge branch 'davinci/cleanups' into next/cleanup
Arnd Bergmann [Mon, 27 Feb 2012 14:58:53 +0000 (14:58 +0000)]
Merge branch 'davinci/cleanups' into next/cleanup

* davinci/cleanups:
  ARM: davinci: add back dummy header files
  ARM: davinci: dm644x: don't force vpfe registeration on all boards
  ARM: davinci: dm644x: fix inconsistent variable naming
  ARM: davinci: dm644x: improve readability using macro
  ARM: davinci: streamline sysmod access
  ARM: davinci: create new common platform header for davinci
  ARM: davinci: dm646x: move private definitions to C file
  ARM: davinci: dm365: move private definitions to C file
  ARM: davinci: dm644x: move private definitions to C file

Conflicts:
arch/arm/mach-davinci/board-dm644x-evm.c
arch/arm/mach-davinci/board-neuros-osd2.c
arch/arm/mach-davinci/board-sffsdr.c

12 years agoARM: davinci: add back dummy header files
Arnd Bergmann [Mon, 27 Feb 2012 14:55:22 +0000 (14:55 +0000)]
ARM: davinci: add back dummy header files

The mach/dm365.h and mach/dm646xh headers are currently being included
in some device drivers. The removal of those includes is already merged
in some subsystem trees, but adding the dummy files ensures that this
branch can be built standalone.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
12 years agoMerge branch 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6 into next...
Arnd Bergmann [Mon, 27 Feb 2012 13:40:41 +0000 (13:40 +0000)]
Merge branch 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6 into next/cleanup

* 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6: (247 commits)
  ARM: Remove redundant ';' from avic_irq_set_priority()
  ARM: mx3: Let mx31 and mx35 share the same CCM header file
  ARM: plat-mxc: audmux-v1: Remove unneeded ifdef's

Update to v3.3-rc3

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
12 years agoARM: Remove redundant ';' from avic_irq_set_priority()
Jesper Juhl [Sun, 26 Feb 2012 22:09:40 +0000 (23:09 +0100)]
ARM: Remove redundant ';' from avic_irq_set_priority()

One semi-colon at the end of the return statement is sufficient.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
12 years agoARM: mx3: Let mx31 and mx35 share the same CCM header file
Fabio Estevam [Fri, 20 Jan 2012 18:43:09 +0000 (16:43 -0200)]
ARM: mx3: Let mx31 and mx35 share the same CCM header file

Let mx31 and mx35 share the same CCM header file

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
12 years agoARM: plat-mxc: audmux-v1: Remove unneeded ifdef's
Fabio Estevam [Fri, 17 Feb 2012 00:15:37 +0000 (22:15 -0200)]
ARM: plat-mxc: audmux-v1: Remove unneeded ifdef's

As we are able to build a single kernel that can run on mx21 and mx27,
there is no need for the ifdef's anymore inside audmux-v1.c.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
12 years agoLinux 3.3-rc5
Linus Torvalds [Sat, 25 Feb 2012 20:18:16 +0000 (12:18 -0800)]
Linux 3.3-rc5

12 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Sat, 25 Feb 2012 20:12:08 +0000 (12:12 -0800)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Couple of minor driver fixes.

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (max34440) Fix resetting temperature history
  hwmon: (f75375s) Fix register write order when setting fans to full speed
  hwmon: (ads1015) Fix file leak in probe function
  hwmon: (max6639) Fix PPR register initialization to set both channels
  hwmon: (max6639) Fix FAN_FROM_REG calculation

12 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Sat, 25 Feb 2012 20:11:25 +0000 (12:11 -0800)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild

three kbuild fixes for 3.3:
 - make deb-pkg symlink race fix.
 - make coccicheck fix.
 - Dropping the check for modutils.  This is not a regression, but
   allows the module-init-tools replacement kmod work with the 3.3
   kernel.

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  coccicheck: change handling of C={1,2} when M= is set
  builddeb: Don't create files in /tmp with predictable names
  kbuild: do not check for ancient modutils tools

12 years agoautofs: work around unhappy compat problem on x86-64
Ian Kent [Wed, 22 Feb 2012 12:45:44 +0000 (20:45 +0800)]
autofs: work around unhappy compat problem on x86-64

When the autofs protocol version 5 packet type was added in commit
5c0a32fc2cd0 ("autofs4: add new packet type for v5 communications"), it
obvously tried quite hard to be word-size agnostic, and uses explicitly
sized fields that are all correctly aligned.

However, with the final "char name[NAME_MAX+1]" array at the end, the
actual size of the structure ends up being not very well defined:
because the struct isn't marked 'packed', doing a "sizeof()" on it will
align the size of the struct up to the biggest alignment of the members
it has.

And despite all the members being the same, the alignment of them is
different: a "__u64" has 4-byte alignment on x86-32, but native 8-byte
alignment on x86-64.  And while 'NAME_MAX+1' ends up being a nice round
number (256), the name[] array starts out a 4-byte aligned.

End result: the "packed" size of the structure is 300 bytes: 4-byte, but
not 8-byte aligned.

As a result, despite all the fields being in the same place on all
architectures, sizeof() will round up that size to 304 bytes on
architectures that have 8-byte alignment for u64.

Note that this is *not* a problem for 32-bit compat mode on POWER, since
there __u64 is 8-byte aligned even in 32-bit mode.  But on x86, 32-bit
and 64-bit alignment is different for 64-bit entities, and as a result
the structure that has exactly the same layout has different sizes.

So on x86-64, but no other architecture, we will just subtract 4 from
the size of the structure when running in a compat task.  That way we
will write the properly sized packet that user mode expects.

Not pretty.  Sadly, this very subtle, and unnecessary, size difference
has been encoded in user space that wants to read packets of *exactly*
the right size, and will refuse to touch anything else.

Reported-and-tested-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Sat, 25 Feb 2012 04:03:14 +0000 (20:03 -0800)]
Merge tag 'rdma-for-linus' of git://git./linux/kernel/git/roland/infiniband

One InfiniBand/RDMA regression fix for 3.3:

 - mlx4 SR-IOV changes added static exported functions, which doesn't
   build on powerpc at least.  Fix from Doug Ledford for this.

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  mlx4_core: Exported functions can't be static

12 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi...
Linus Torvalds [Sat, 25 Feb 2012 00:08:51 +0000 (16:08 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6

SCSI fixes on 20120224:
 "This is a set of assorted bug fixes for power management, mpt2sas,
  ipr, the rdac device handler and quite a big chunk for qla2xxx (plus a
  use after free of scsi_host in scsi_scan.c). "

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] scsi_dh_rdac: Fix for unbalanced reference count
  [SCSI] scsi_pm: Fix bug in the SCSI power management handler
  [SCSI] scsi_scan: Fix 'Poison overwritten' warning caused by using freed 'shost'
  [SCSI] qla2xxx: Update version number to 8.03.07.13-k.
  [SCSI] qla2xxx: Proper detection of firmware abort error code for ISP82xx.
  [SCSI] qla2xxx: Remove resetting memory during device initialization for ISP82xx.
  [SCSI] qla2xxx: Complete mailbox command timedout to avoid initialization failures during next reset cycle.
  [SCSI] qla2xxx: Remove check for null fcport from host reset handler.
  [SCSI] qla2xxx: Correct out of bounds read of ISP2200 mailbox registers.
  [SCSI] qla2xxx: Remove errant clearing of MBX_INTERRUPT flag during CT-IOCB processing.
  [SCSI] qla2xxx: Clear options-flags while issuing stop-firmware mbx command.
  [SCSI] qla2xxx: Add an "is reset active" helper.
  [SCSI] qla2xxx: Add check for null fcport references in qla2xxx_queuecommand.
  [SCSI] qla2xxx: Propagate up abort failures.
  [SCSI] isci: Fix NULL ptr dereference when no firmware is being loaded
  [SCSI] ipr: fix eeh recovery for 64-bit adapters
  [SCSI] mpt2sas: Fix mismatch in mpt2sas_base_hard_reset_handler() mutex lock-unlock

12 years agococcicheck: change handling of C={1,2} when M= is set
Greg Dietsche [Fri, 20 Jan 2012 23:10:35 +0000 (17:10 -0600)]
coccicheck: change handling of C={1,2} when M= is set

This patch reverts a portion of d0bc1fb4 so that coccicheck will
work properly when C=1 or C=2.

Reported-and-tested-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
12 years agoARM: davinci: dm644x: don't force vpfe registeration on all boards
Manjunath Hadli [Wed, 21 Dec 2011 13:43:39 +0000 (19:13 +0530)]
ARM: davinci: dm644x: don't force vpfe registeration on all boards

Move all vpfe platform device registrations to the board specific
file.

This removes registration of vpfe platform devices on boards which
do not use vpfe.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
12 years agoARM: davinci: dm644x: fix inconsistent variable naming
Manjunath Hadli [Wed, 21 Dec 2011 13:43:38 +0000 (19:13 +0530)]
ARM: davinci: dm644x: fix inconsistent variable naming

Add dm644x_ prefix to names of v4l2 variables in dm644x.c
Add dm644xevm_ prefix to names of v4l2 variables in board-dm644x-evm.c.

This makes the code consistent with rest of these files.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
12 years agoARM: davinci: dm644x: improve readability using macro
Manjunath Hadli [Wed, 21 Dec 2011 13:43:37 +0000 (19:13 +0530)]
ARM: davinci: dm644x: improve readability using macro

Replace the VPSS base address "magic number" with the
define "DM644X_VPSS_BASE" to improve readability.

While at it, fix the indentation done using spaces in
this part of code.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
12 years agoARM: davinci: streamline sysmod access
Manjunath Hadli [Wed, 21 Dec 2011 13:43:36 +0000 (19:13 +0530)]
ARM: davinci: streamline sysmod access

There are instances of IO_ADDRESS() being used for system module
(sysmod) register access. Eliminate this in favor of a ioremap()
based access. ioremap() the entire sysmod address space once during
boot-up and provide a helper macro to access specific register
offsets within the address space.

With this, also eliminate ioremap() of specific sysmodule registers
related to VPIF happening in DM646x EVM code.

While at it, also eliminate some duplicate sysmod register offset macros
defined in code and place offset definitions at one place in davinci.h

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
[nsekhar@ti.com: removed the addition of ifndef __ASSEMBLER__
in davinci.h, eliminate IO_ADDRESS() usage left out in dm646x.c,
cleanup VPIF sysmodule register access as part of this patch and
keep all sysmod offsets in davinci.h Also, convert the WARN_ON()
on failure to setup sysmod base to BUG_ON()]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
12 years agoARM: davinci: create new common platform header for davinci
Manjunath Hadli [Wed, 21 Dec 2011 13:43:35 +0000 (19:13 +0530)]
ARM: davinci: create new common platform header for davinci

Remove individual platform header files for dm365, dm355, dm644x
and dm646x and consolidate it into a single and common
header file davinci.h placed in arch/arm/mach-davinci.

This reduces the pollution in the include/mach and is consistent
with Russell's suggestions as part of his "pet peaves" mail.
(See #4 in: http://lists.infradead.org/pipermail/linux-arm-kernel/2011-November/071516.html)

While at it, fix the forward declaration of spi_board_info,
and include the right header file instead.

The further patches in the series take  advantage of this consolidation
for easy implementation of IO_ADDRESS elimination.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
[nsekhar@ti.com: make davinci.h the first local include file,
fix forward declaration of spi_board_info and add back Deep Root
Systems, LLC copyright]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
12 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Fri, 24 Feb 2012 20:32:51 +0000 (12:32 -0800)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] hdpvr: update picture controls to support firmware versions > 0.15
  [media] wl128x: fix build errors when GPIOLIB is not enabled
  [media] hdpvr: fix race conditon during start of streaming
  [media] omap3isp: Fix crash caused by subdevs now having a pointer to devnodes
  [media] imon: don't wedge hardware after early callbacks

12 years agoepoll: ep_unregister_pollwait() can use the freed pwq->whead
Oleg Nesterov [Fri, 24 Feb 2012 19:07:29 +0000 (20:07 +0100)]
epoll: ep_unregister_pollwait() can use the freed pwq->whead

signalfd_cleanup() ensures that ->signalfd_wqh is not used, but
this is not enough. eppoll_entry->whead still points to the memory
we are going to free, ep_unregister_pollwait()->remove_wait_queue()
is obviously unsafe.

Change ep_poll_callback(POLLFREE) to set eppoll_entry->whead = NULL,
change ep_unregister_pollwait() to check pwq->whead != NULL under
rcu_read_lock() before remove_wait_queue(). We add the new helper,
ep_remove_wait_queue(), for this.

This works because sighand_cachep is SLAB_DESTROY_BY_RCU and because
->signalfd_wqh is initialized in sighand_ctor(), not in copy_sighand.
ep_unregister_pollwait()->remove_wait_queue() can play with already
freed and potentially reused ->sighand, but this is fine. This memory
must have the valid ->signalfd_wqh until rcu_read_unlock().

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Cc: <stable@kernel.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoepoll: introduce POLLFREE to flush ->signalfd_wqh before kfree()
Oleg Nesterov [Fri, 24 Feb 2012 19:07:11 +0000 (20:07 +0100)]
epoll: introduce POLLFREE to flush ->signalfd_wqh before kfree()

This patch is intentionally incomplete to simplify the review.
It ignores ep_unregister_pollwait() which plays with the same wqh.
See the next change.

epoll assumes that the EPOLL_CTL_ADD'ed file controls everything
f_op->poll() needs. In particular it assumes that the wait queue
can't go away until eventpoll_release(). This is not true in case
of signalfd, the task which does EPOLL_CTL_ADD uses its ->sighand
which is not connected to the file.

This patch adds the special event, POLLFREE, currently only for
epoll. It expects that init_poll_funcptr()'ed hook should do the
necessary cleanup. Perhaps it should be defined as EPOLLFREE in
eventpoll.

__cleanup_sighand() is changed to do wake_up_poll(POLLFREE) if
->signalfd_wqh is not empty, we add the new signalfd_cleanup()
helper.

ep_poll_callback(POLLFREE) simply does list_del_init(task_list).
This make this poll entry inconsistent, but we don't care. If you
share epoll fd which contains our sigfd with another process you
should blame yourself. signalfd is "really special". I simply do
not know how we can define the "right" semantics if it used with
epoll.

The main problem is, epoll calls signalfd_poll() once to establish
the connection with the wait queue, after that signalfd_poll(NULL)
returns the different/inconsistent results depending on who does
EPOLL_CTL_MOD/signalfd_read/etc. IOW: apart from sigmask, signalfd
has nothing to do with the file, it works with the current thread.

In short: this patch is the hack which tries to fix the symptoms.
It also assumes that nobody can take tasklist_lock under epoll
locks, this seems to be true.

Note:

- we do not have wake_up_all_poll() but wake_up_poll()
  is fine, poll/epoll doesn't use WQ_FLAG_EXCLUSIVE.

- signalfd_cleanup() uses POLLHUP along with POLLFREE,
  we need a couple of simple changes in eventpoll.c to
  make sure it can't be "lost".

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Cc: <stable@kernel.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoARM: OMAP2+: Limit omap_read/write usage to legacy USB drivers
Tony Lindgren [Fri, 24 Feb 2012 18:34:36 +0000 (10:34 -0800)]
ARM: OMAP2+: Limit omap_read/write usage to legacy USB drivers

Drivers should no longer use omap_read/write functions
but instead use ioremap + read/write functions.

As some USB legacy code is still shared between omap1 and
omap2420, let's limit the omap_read/write to plat/usb.h.

Note that the long term fix is to update the drivers to
use ioremap and read/write functions. That can now be
done as a separate patch series that is limited to the
USB drivers.

Also make sure the legacy omap1-keypad.c driver builds
if selected for 2420 based systems.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP: Remove plat/io.h by splitting it into mach/io.h and mach/hardware.h
Tony Lindgren [Fri, 24 Feb 2012 18:34:35 +0000 (10:34 -0800)]
ARM: OMAP: Remove plat/io.h by splitting it into mach/io.h and mach/hardware.h

This is needed to minimize io.h so the SoC specific io.h
for ARMs can removed.

Note that minimal driver changes for DSS and RNG are needed to
include cpu.h for SoC detection macros.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP2+: Move most of plat/io.h into local iomap.h
Tony Lindgren [Fri, 24 Feb 2012 18:34:35 +0000 (10:34 -0800)]
ARM: OMAP2+: Move most of plat/io.h into local iomap.h

There's no need to have these defines in plat/io.h.

Note that we now need to ifdef omap_read/write calls
as they will be available for omap1 only.

While at it, clean up the includes to group them like
they typically are grouped.

Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP1: Move most of plat/io.h into local iomap.h
Tony Lindgren [Fri, 24 Feb 2012 18:34:34 +0000 (10:34 -0800)]
ARM: OMAP1: Move most of plat/io.h into local iomap.h

There's no need to have these in plat/io.h.

While at it, clean up the includes to group them
like they typically are grouped.

Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP1: Move 16xx GPIO system clock to platform init code
Tony Lindgren [Fri, 24 Feb 2012 18:34:33 +0000 (10:34 -0800)]
ARM: OMAP1: Move 16xx GPIO system clock to platform init code

This way we can remove omap_read/write call from the GPIO driver
and remove include to linux/io.h.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP: Move omap_init_consistent_dma_size() to local common.h
Tony Lindgren [Fri, 24 Feb 2012 18:34:33 +0000 (10:34 -0800)]
ARM: OMAP: Move omap_init_consistent_dma_size() to local common.h

We don't want to keep it in io.h as we want to remove io.h
for omap2+ for the common zImage support.

Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP2+: Move SDRC related functions from io.h into local common.h
Tony Lindgren [Fri, 24 Feb 2012 18:34:33 +0000 (10:34 -0800)]
ARM: OMAP2+: Move SDRC related functions from io.h into local common.h

These should be local to omap2/3/4.

Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP2+: Drop DISPC L3 firewall code
Tony Lindgren [Fri, 24 Feb 2012 18:34:32 +0000 (10:34 -0800)]
ARM: OMAP2+: Drop DISPC L3 firewall code

This is only needed when using SRAM for framebuffer,
and the support for SRAM framebuffer is about to get
removed.

Otherwise we cannot move most of plat/io.h to be a local
iomap.h for mach-omap2.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP2xxx: PM: remove obsolete timer disable code in the suspend path
Paul Walmsley [Fri, 24 Feb 2012 18:34:32 +0000 (10:34 -0800)]
ARM: OMAP2xxx: PM: remove obsolete timer disable code in the suspend path

Remove omap_{read,write}l() from the 24xx PM code.  The clocksource
code should now handle what this was supposed to do.

Tested on N800 -- but it's hard to say whether this fixes anything.
OMAP24xx static suspend path is currently broken, and this patch
doesn't change that.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rob Herring <robherring2@gmail.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoARM: OMAP: McSPI: Remove unused flag from struct omap2_mcspi_device_config
Jarkko Nikula [Fri, 24 Feb 2012 18:33:58 +0000 (10:33 -0800)]
ARM: OMAP: McSPI: Remove unused flag from struct omap2_mcspi_device_config

Flag single_channel in struct omap2_mcspi_device_config is not used
by drivers/spi/spi-omap2-mcspi.c so we may remove it from include/plat/mcspi.h
and affected board files.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Fri, 24 Feb 2012 17:02:53 +0000 (09:02 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Quoth Chris:
 "This is later than I wanted because I got backed up running through
  btrfs bugs from the Oracle QA teams.  But they are all bug fixes that
  we've queued and tested since rc1.

  Nothing in particular stands out, this just reflects bug fixing and QA
  done in parallel by all the btrfs developers.  The most user visible
  of these is:

    Btrfs: clear the extent uptodate bits during parent transid failures

  Because that helps deal with out of date drives (say an iscsi disk
  that has gone away and come back).  The old code wasn't always
  properly retrying the other mirror for this type of failure."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (24 commits)
  Btrfs: fix compiler warnings on 32 bit systems
  Btrfs: increase the global block reserve estimates
  Btrfs: clear the extent uptodate bits during parent transid failures
  Btrfs: add extra sanity checks on the path names in btrfs_mksubvol
  Btrfs: make sure we update latest_bdev
  Btrfs: improve error handling for btrfs_insert_dir_item callers
  Btrfs: be less strict on finding next node in clear_extent_bit
  Btrfs: fix a bug on overcommit stuff
  Btrfs: kick out redundant stuff in convert_extent_bit
  Btrfs: skip states when they does not contain bits to clear
  Btrfs: check return value of lookup_extent_mapping() correctly
  Btrfs: fix deadlock on page lock when doing auto-defragment
  Btrfs: fix return value check of extent_io_ops
  btrfs: honor umask when creating subvol root
  btrfs: silence warning in raid array setup
  btrfs: fix structs where bitfields and spinlock/atomic share 8B word
  btrfs: delalloc for page dirtied out-of-band in fixup worker
  Btrfs: fix memory leak in load_free_space_cache()
  btrfs: don't check DUP chunks twice
  Btrfs: fix trim 0 bytes after a device delete
  ...

12 years agoMerge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
Linus Torvalds [Fri, 24 Feb 2012 17:01:46 +0000 (09:01 -0800)]
Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming

This is the arch/c6x part of commit 7c43185138cf ("Kbuild: Use dtc's -d
(dependency) option") which was dropped because c6x had not yet been
merged at the time.

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  Kbuild: Use dtc's -d (dependency) option

12 years agoMAINTAINERS: drop me from PA-RISC maintenance
Kyle McMartin [Fri, 24 Feb 2012 15:36:16 +0000 (10:36 -0500)]
MAINTAINERS: drop me from PA-RISC maintenance

I don't even live in the same country as any of my PA-RISC hardware
these days, so the odds of me touching the code are pretty low.
(Also re-order things to ensure jejb gets CC'd since he's been the
primary maintainer for the last few years.)

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoNOMMU: Don't need to clear vm_mm when deleting a VMA
David Howells [Thu, 23 Feb 2012 13:51:00 +0000 (13:51 +0000)]
NOMMU: Don't need to clear vm_mm when deleting a VMA

Don't clear vm_mm in a deleted VMA as it's unnecessary and might
conceivably break the filesystem or driver VMA close routine.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoNOMMU: Lock i_mmap_mutex for access to the VMA prio list
David Howells [Thu, 23 Feb 2012 13:50:35 +0000 (13:50 +0000)]
NOMMU: Lock i_mmap_mutex for access to the VMA prio list

Lock i_mmap_mutex for access to the VMA prio list to prevent concurrent
access.  Currently, certain parts of the mmap handling are protected by
the region mutex, but not all.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh
Linus Torvalds [Fri, 24 Feb 2012 16:57:22 +0000 (08:57 -0800)]
Merge tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh

SH/R-Mobile fixes for 3.3-rc5

* tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh:
  arch/arm/mach-shmobile/board-ag5evm.c: included linux/dma-mapping.h twice
  ARM: mach-shmobile: r8a7779 PFC IPSR4 fix
  ARM: mach-shmobile: sh73a0 PSTR 32-bit access fix
  ARM: mach-shmobile: add GPIO-to-IRQ translation to sh7372
  ARM: mach-shmobile: clock-sh73a0: add DSIxPHY clock support
  arm: fix compile failure in mach-shmobile/board-ag5evm.c
  ARM: mach-shmobile: mackerel: add ak4642 amixer settings on comment
  ARM: mach-shmobile: mackerel: use renesas_usbhs instead of r8a66597_hcd
  ARM: mach-shmobile: simplify MMCIF DMA configuration
  ARM: mach-shmobile: IRQ driven GPIO key support for Kota2
  ARM: mach-shmobile: sh73a0 IRQ sparse alloc fix
  ARM: mach-shmobile: sh73a0 PINT IRQ base fix

12 years agoMerge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Linus Torvalds [Fri, 24 Feb 2012 16:56:51 +0000 (08:56 -0800)]
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

SuperH fixes for 3.3-rc5

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh: Fix sh2a build error for CONFIG_CACHE_WRITETHROUGH
  sh: modify a resource of sh_eth_giga1_resources in board-sh7757lcr
  arch/sh: remove references to cpu_*_map.
  sh: Fix typo in pci-sh7780.c
  sh: add platform_device for SPI1 in setup-sh7757
  sh: modify resource for SPI0 in setup-sh7757
  sh: se7724: fix compile breakage
  sh: clkfwk: bugfix: use clk_reparent() for div6 clocks
  sh: clock-sh7724: fixup sh_fsi clock settings
  sh: sh7757lcr: update to the new MMCIF DMA configuration
  sh: fix the sh_mmcif_plat_data in board-sh7757lcr
  video: pvr2fb: Fix up spurious section mismatch warnings.
  sh: Defer to asm-generic/device.h.

12 years agomm: memcg: Correct unregistring of events attached to the same eventfd
Anton Vorontsov [Fri, 24 Feb 2012 01:14:46 +0000 (05:14 +0400)]
mm: memcg: Correct unregistring of events attached to the same eventfd

There is an issue when memcg unregisters events that were attached to
the same eventfd:

- On the first call mem_cgroup_usage_unregister_event() removes all
  events attached to a given eventfd, and if there were no events left,
  thresholds->primary would become NULL;

- Since there were several events registered, cgroups core will call
  mem_cgroup_usage_unregister_event() again, but now kernel will oops,
  as the function doesn't expect that threshold->primary may be NULL.

That's a good question whether mem_cgroup_usage_unregister_event()
should actually remove all events in one go, but nowadays it can't
do any better as cftype->unregister_event callback doesn't pass
any private event-associated cookie. So, let's fix the issue by
simply checking for threshold->primary.

FWIW, w/o the patch the following oops may be observed:

 BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
 IP: [<ffffffff810be32c>] mem_cgroup_usage_unregister_event+0x9c/0x1f0
 Pid: 574, comm: kworker/0:2 Not tainted 3.3.0-rc4+ #9 Bochs Bochs
 RIP: 0010:[<ffffffff810be32c>]  [<ffffffff810be32c>] mem_cgroup_usage_unregister_event+0x9c/0x1f0
 RSP: 0018:ffff88001d0b9d60  EFLAGS: 00010246
 Process kworker/0:2 (pid: 574, threadinfo ffff88001d0b8000, task ffff88001de91cc0)
 Call Trace:
  [<ffffffff8107092b>] cgroup_event_remove+0x2b/0x60
  [<ffffffff8103db94>] process_one_work+0x174/0x450
  [<ffffffff8103e413>] worker_thread+0x123/0x2d0

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agohwmon: (max34440) Fix resetting temperature history
Guenter Roeck [Fri, 24 Feb 2012 11:44:34 +0000 (03:44 -0800)]
hwmon: (max34440) Fix resetting temperature history

Temperature history is reset by writing 0x8000 into the peak temperature
register, not 0xffff.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
12 years agoBtrfs: fix compiler warnings on 32 bit systems
Chris Mason [Fri, 24 Feb 2012 15:39:05 +0000 (10:39 -0500)]
Btrfs: fix compiler warnings on 32 bit systems

The enospc tracing code added some interesting uses of
u64 pointer casts.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoarch/arm/mach-shmobile/board-ag5evm.c: included linux/dma-mapping.h twice
Danny Kukawka [Thu, 16 Feb 2012 14:46:38 +0000 (15:46 +0100)]
arch/arm/mach-shmobile/board-ag5evm.c: included linux/dma-mapping.h twice

arch/arm/mach-shmobile/board-ag5evm.c: included 'linux/dma-mapping.h'
twice, remove the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoARM: mach-shmobile: r8a7779 PFC IPSR4 fix
Magnus Damm [Mon, 30 Jan 2012 02:25:07 +0000 (11:25 +0900)]
ARM: mach-shmobile: r8a7779 PFC IPSR4 fix

Fix the bit field width information for the IPSR4 register
in the r8a7779 pin function controller (PFC).

Without this fix the Marzen board fails to receive data
over the serial console due to misconfigured pin function
for the RX pin.

Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoARM: mach-shmobile: sh73a0 PSTR 32-bit access fix
Magnus Damm [Mon, 30 Jan 2012 02:03:49 +0000 (11:03 +0900)]
ARM: mach-shmobile: sh73a0 PSTR 32-bit access fix

Convert the sh73a0 SMP code to use 32-bit PSTR access.

This fixes wakeup from deep sleep for sh73a0 secondary CPUs.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into rmobile-fixes...
Paul Mundt [Fri, 24 Feb 2012 04:23:23 +0000 (13:23 +0900)]
Merge git://git./linux/kernel/git/torvalds/linux into rmobile-fixes-for-linus

12 years agosh: Fix sh2a build error for CONFIG_CACHE_WRITETHROUGH
Phil Edworthy [Tue, 21 Feb 2012 08:29:57 +0000 (08:29 +0000)]
sh: Fix sh2a build error for CONFIG_CACHE_WRITETHROUGH

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agosh: modify a resource of sh_eth_giga1_resources in board-sh7757lcr
Shimoda, Yoshihiro [Mon, 20 Feb 2012 08:26:50 +0000 (17:26 +0900)]
sh: modify a resource of sh_eth_giga1_resources in board-sh7757lcr

The latest sh_eth driver needs a resource of TSU in the channel 1,
if the controller has TSU registers. So, this patch adds the resource.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoarch/sh: remove references to cpu_*_map.
Rusty Russell [Wed, 15 Feb 2012 04:58:04 +0000 (15:28 +1030)]
arch/sh: remove references to cpu_*_map.

This has been obsolescent for a while; time for the final push.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agosh: Fix typo in pci-sh7780.c
Masanari Iida [Sat, 4 Feb 2012 12:40:24 +0000 (21:40 +0900)]
sh: Fix typo in pci-sh7780.c

Correct spelling "erorr" to "error" in
arch/sh/drivers/pci/pci-sh7780.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
12 years agoRestore direct_io / truncate locking API
Anton Altaparmakov [Thu, 23 Feb 2012 23:40:05 +0000 (23:40 +0000)]
Restore direct_io / truncate locking API

With kernel 3.1, Christoph removed i_alloc_sem and replaced it with
calls (namely inode_dio_wait() and inode_dio_done()) which are
EXPORT_SYMBOL_GPL() thus they cannot be used by non-GPL file systems and
further inode_dio_wait() was pushed from notify_change() into the file
system ->setattr() method but no non-GPL file system can make this call.

That means non-GPL file systems cannot exist any more unless they do not
use any VFS functionality related to reading/writing as far as I can
tell or at least as long as they want to implement direct i/o.

Both Linus and Al (and others) have said on LKML that this breakage of
the VFS API should not have happened and that the change was simply
missed as it was not documented in the change logs of the patches that
did those changes.

This patch changes the two function exports in question to be
EXPORT_SYMBOL() thus restoring the VFS API as it used to be - accessible
for all modules.

Christoph, who introduced the two functions and exported them GPL-only
is CC-ed on this patch to give him the opportunity to object to the
symbols being changed in this manner if he did indeed intend them to be
GPL-only and does not want them to become available to all modules.

Signed-off-by: Anton Altaparmakov <anton@tuxera.com>
CC: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Thu, 23 Feb 2012 23:38:57 +0000 (15:38 -0800)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

A fix from Jesper Juhl removes an assignment in an ASSERT when a compare
is intended.  Two fixes from Mitsuo Hayasaka address off-by-ones in XFS
quota enforcement.

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: make inode quota check more general
  xfs: change available ranges of softlimit and hardlimit in quota check
  XFS: xfs_trans_add_item() - don't assign in ASSERT() when compare is intended

12 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Thu, 23 Feb 2012 19:48:36 +0000 (11:48 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

BenH says:
 'Here are a few more powerpc bits for you.  A stupid regression I
  introduced with my previous commit to "fix" program check exceptions
  (brown paper bag for me), fix the cpuidle default, a bug fix for
  something that isn't strictly speaking a regression but some upstream
  changes causes it to show in lockdep now while it didn't before, and
  finally a trivial one for rusty to make his life easier later on
  removing the old cpumask cruft. '

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix various issues with return to userspace
  cpuidle: Default y on powerpc pSeries
  powerpc: Fix program check handling when lockdep is enabled
  powerpc: Remove references to cpu_*_map

12 years agoMerge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Thu, 23 Feb 2012 19:28:05 +0000 (11:28 -0800)]
Merge tag 'sound-fixes' of git://git./linux/kernel/git/tiwai/sound

sound fixes for 3.3-rc5

Just a collection of boring small fixes for ASoC, HD-audio Realtek
and USB-audio drivers.

* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: snd-usb-caiaq: Fix the return of XRUN
  ASoC: ak4642: fixup HeadPhone L/R dapm settings
  ALSA: hda/realtek - Fix surround output regression on Acer Aspire 5935
  ALSA: hda/realtek - Fix overflow of vol/sw check bitmap
  ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk()
  ASoC: wm8962: Fix sidetone enumeration texts

12 years agoBtrfs: increase the global block reserve estimates
Liu Bo [Thu, 23 Feb 2012 15:49:04 +0000 (10:49 -0500)]
Btrfs: increase the global block reserve estimates

When doing IO with large amounts of data fragmentation, the global block
reserve calulations are too low.  This increases them to avoid
ENOSPC crashes.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: clear the extent uptodate bits during parent transid failures
Chris Mason [Wed, 22 Feb 2012 17:36:24 +0000 (12:36 -0500)]
Btrfs: clear the extent uptodate bits during parent transid failures

If btrfs reads a block and finds a parent transid mismatch, it clears
the uptodate flags on the extent buffer, and the pages inside it.  But
we only clear the uptodate bits in the state tree if the block straddles
more than one page.

This is from an old optimization from to reduce contention on the extent
state tree.  But it is buggy because the code that retries a read from
a different copy of the block is going to find the uptodate state bits
set and skip the IO.

The end result of the bug is that we'll never actually read the good
copy (if there is one).

The fix here is to always clear the uptodate state bits, which is safe
because this code is only called when the parent transid fails.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: add extra sanity checks on the path names in btrfs_mksubvol
Chris Mason [Tue, 21 Feb 2012 03:14:55 +0000 (22:14 -0500)]
Btrfs: add extra sanity checks on the path names in btrfs_mksubvol

Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: make sure we update latest_bdev
Chris Mason [Tue, 21 Feb 2012 01:53:43 +0000 (20:53 -0500)]
Btrfs: make sure we update latest_bdev

When we are setting up the mount, we close all the
devices that were not actually part of the metadata we found.

But, we don't make sure that one of those devices wasn't
fs_devices->latest_bdev, which means we can do a use after free
on the one we closed.

This updates latest_bdev as it goes.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: improve error handling for btrfs_insert_dir_item callers
Chris Mason [Mon, 20 Feb 2012 13:40:56 +0000 (08:40 -0500)]
Btrfs: improve error handling for btrfs_insert_dir_item callers

This allows us to gracefully continue if we aren't able to insert
directory items, both for normal files/dirs and snapshots.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agohwmon: (f75375s) Fix register write order when setting fans to full speed
Nikolaus Schulz [Wed, 22 Feb 2012 22:18:44 +0000 (23:18 +0100)]
hwmon: (f75375s) Fix register write order when setting fans to full speed

By hwmon sysfs interface convention, setting pwm_enable to zero sets a fan
to full speed.  In the f75375s driver, this need be done by enabling
manual fan control, plus duty mode for the F875387 chip, and then setting
the maximum duty cycle.  Fix a bug where the two necessary register writes
were swapped, effectively discarding the setting to full-speed.

Signed-off-by: Nikolaus Schulz <mail@microschulz.de>
Cc: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
12 years agohwmon: (ads1015) Fix file leak in probe function
Guenter Roeck [Wed, 22 Feb 2012 16:13:52 +0000 (08:13 -0800)]
hwmon: (ads1015) Fix file leak in probe function

An error while creating sysfs attribute files in the driver's probe function
results in an error abort, but already created files are not removed. This patch
fixes the problem.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Cc: Dirk Eibach <eibach@gdsys.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
12 years agomlx4_core: Exported functions can't be static
Doug Ledford [Mon, 20 Feb 2012 17:19:03 +0000 (12:19 -0500)]
mlx4_core: Exported functions can't be static

At least on powerpc, it breaks the build if exported functions are
static.  Fix some static exported functions introduced with the mlx4
SR-IOV support added in 3.3-rc1.

Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
12 years agoMerge branch 'entry-macro-cleanup' of git://sources.calxeda.com/kernel/linux into...
Russell King [Wed, 22 Feb 2012 22:04:41 +0000 (22:04 +0000)]
Merge branch 'entry-macro-cleanup' of git://sources.calxeda.com/kernel/linux into for-armsoc

12 years agoMerge tag 'usb-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Wed, 22 Feb 2012 21:00:53 +0000 (13:00 -0800)]
Merge tag 'usb-3.3-rc4' of git://git./linux/kernel/git/gregkh/usb

USB bugfixes for 3.3-rc4

A number of new device ids, and a cleanup/fix for some of the option
device ids that shouldn't have been added in the first place.

There's also a few USB 3 fixes for problems that people have reported,
and a usb-storage bugfix to round it out.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'usb-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: Added Kamstrup VID/PIDs to cp210x serial driver.
  USB: Serial: ti_usb_3410_5052: Add Abbot Diabetes Care cable id
  usb-storage: fix freezing of the scanning thread
  xhci: Fix encoding for HS bulk/control NAK rate.
  USB: Set hub depth after USB3 hub reset
  USB: Fix handoff when BIOS disables host PCI device.
  USB: option: cleanup zte 3g-dongle's pid in option.c
  USB: Don't fail USB3 probe on missing legacy PCI IRQ.
  xhci: Fix oops caused by more USB2 ports than USB3 ports.
  USB: Remove duplicate USB 3.0 hub feature #defines.

12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Wed, 22 Feb 2012 19:58:30 +0000 (11:58 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Intel, radeon, exynos fixes.

Intel: fixes a few Ivybridge hangs, along with fixing RC6 on SNB (still
not on, but at least allows for distros to patch it on easily).

radeon: oops reading some files in debugfs that weren't meant to appear,
a fix that touches a lot of files, so looks worse than it is, it fixes
an oops if a GPU reset fails and userspace keeps submitting more data,
along with a minor BIOS fix for newer boards.

exynos: a group of fixes for exynos, they've sent me a few more but
these were all I got through, and its no hw vanilla kernel users see a
lot off yet.

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms/atom: dpms bios scratch reg updates
  drm/radeon/kms: properly set accel working flag and bailout when false
  drm/radeon: Only create additional ring debugfs files on Cayman or newer.
  drm/exynos: added postclose to release resource.
  drm/exynos: removed exynos_drm_fbdev_recreate function.
  drm/exynos: fixed page flip issue.
  drm/exynos: added possible_clones setup function.
  drm/exynos: removed pageflip_event_list init code when closed.
  drm/exynos: changed priority of mixer layers.
  drm/exynos: Fix typo in exynos_mixer.c
  drm/i915: do not enable RC6p on Sandy Bridge
  drm/i915: gen7: Disable the RHWO optimization as it can cause GPU hangs.
  drm/i915: gen7: work around a system hang on IVB
  drm/i915: gen7: Implement an L3 caching workaround.
  drm/i915: gen7: implement rczunit workaround

12 years ago[SCSI] scsi_dh_rdac: Fix for unbalanced reference count
Moger, Babu [Thu, 2 Feb 2012 15:21:54 +0000 (15:21 +0000)]
[SCSI] scsi_dh_rdac: Fix for unbalanced reference count

This patch fixes an unbalanced refcount issue.

Elevating the lock for both kref_put and also for controller node deletion.
Previously, controller deletion was protected but the not the kref_put. This
was causing the other thread to pick up the controller structure which was
already kref'd zero.

This was causing the following WARN_ON and also sometimes panic.

WARNING: at lib/kref.c:43 kref_get+0x2d/0x30() (Not tainted)
Hardware name: IBM System x3655 -[7985AC1]-
Modules linked in: fuse scsi_dh_rdac autofs4 nfs lockd fscache nfs_acl
auth_rpcgss sunrpc 8021q garp stp llc ipv6 ib_srp(U) scsi_transport_srp
scsi_tgt ib_cm(U) ib_sa(U) ib_uverbs(U) ib_umad(U) mlx4_ib(U) mlx4_core(U)
ib_mthca(U) ib_mad(U) ib_core(U) dm_mirror dm_region_hash dm_log dm_round_robin
dm_multipath uinput bnx2 ses enclosure sg ibmpex ibmaem ipmi_msghandler
serio_raw k8temp hwmon amd64_edac_mod edac_core edac_mce_amd shpchp i2c_piix4
ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif sata_svw pata_acpi ata_generic
pata_serverworks aacraid radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core
dm_mod [last unloaded: freq_table]
Pid: 13735, comm: srp_daemon Not tainted 2.6.32-71.el6.x86_64 #1
Call Trace:
[<ffffffff8106b857>] warn_slowpath_common+0x87/0xc0
[<ffffffff8106b8aa>] warn_slowpath_null+0x1a/0x20
[<ffffffff8125c39d>] kref_get+0x2d/0x30
[<ffffffffa01b4029>] rdac_bus_attach+0x459/0x580 [scsi_dh_rdac]
[<ffffffff8135232a>] scsi_dh_handler_attach+0x2a/0x80
[<ffffffff81352c7b>] scsi_dh_notifier+0x9b/0xa0
[<ffffffff814cd7a5>] notifier_call_chain+0x55/0x80
[<ffffffff8109711a>] __blocking_notifier_call_chain+0x5a/0x80
[<ffffffff81097156>] blocking_notifier_call_chain+0x16/0x20
[<ffffffff8132bec5>] device_add+0x515/0x640
[<ffffffff813329e4>] ? attribute_container_device_trigger+0xc4/0xe0
[<ffffffff8134f659>] scsi_sysfs_add_sdev+0x89/0x2c0
[<ffffffff8134d096>] scsi_probe_and_add_lun+0xea6/0xed0
[<ffffffff8134beb2>] ? scsi_alloc_target+0x292/0x2d0
[<ffffffff8134d1e1>] __scsi_scan_target+0x121/0x750
[<ffffffff811df806>] ? sysfs_create_file+0x26/0x30
[<ffffffff8132b759>] ? device_create_file+0x19/0x20
[<ffffffff81332838>] ? attribute_container_add_attrs+0x78/0x90
[<ffffffff814b008c>] ? klist_next+0x4c/0xf0
[<ffffffff81332e30>] ? transport_configure+0x0/0x20
[<ffffffff813329e4>] ? attribute_container_device_trigger+0xc4/0xe0
[<ffffffff8134df40>] scsi_scan_target+0xd0/0xe0
[<ffffffffa02f053a>] srp_create_target+0x75a/0x890 [ib_srp]
[<ffffffff8132a130>] dev_attr_store+0x20/0x30
[<ffffffff811df145>] sysfs_write_file+0xe5/0x170
[<ffffffff8116c818>] vfs_write+0xb8/0x1a0
[<ffffffff810d40a2>] ? audit_syscall_entry+0x272/0x2a0
[<ffffffff8116d251>] sys_write+0x51/0x90
[<ffffffff81013172>] system_call_fastpath+0x16/0x1b

Signed-off-by: Babu Moger <babu.moger@netapp.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Linus Torvalds [Wed, 22 Feb 2012 16:45:08 +0000 (08:45 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/gerg/m68knommu

It contains 3 important fixes for ColdFire based machines:
 - fix processes getting stuck when running from strace
 - fix kernel vmalloced pages not being visible in all kernel contexts
 - fix shared user pages sometimes being visible in another process
   context

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: Do not set global share for non-kernel shared pages
  m68k: Add shared bit to Coldfire kernel page entries
  m68knommu: fix syscall tracing stuck process

12 years agoMerge tag 'nfs-for-3.3-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Wed, 22 Feb 2012 16:43:35 +0000 (08:43 -0800)]
Merge tag 'nfs-for-3.3-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Bugfixes for the NFS client.

Fix a nasty Oops in the NFSv4 getacl code, another source of infinite
loops in the NFSv4 state recovery code, and a regression in NFSv4.1
session initialisation.

Also deal with an NFSv4.1 memory leak.

* tag 'nfs-for-3.3-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4: fix server_scope memory leak
  NFSv4.1: Fix a NFSv4.1 session initialisation regression
  NFSv4: Ensure we throw out bad delegation stateids on NFS4ERR_BAD_STATEID
  NFSv4: Fix an Oops in the NFSv4 getacl code

12 years agodrm/radeon/kms/atom: dpms bios scratch reg updates
Alex Deucher [Mon, 20 Feb 2012 02:42:03 +0000 (21:42 -0500)]
drm/radeon/kms/atom: dpms bios scratch reg updates

dpms bits not used on DCE4+

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon/kms: properly set accel working flag and bailout when false
Jerome Glisse [Mon, 20 Feb 2012 22:57:20 +0000 (17:57 -0500)]
drm/radeon/kms: properly set accel working flag and bailout when false

If accel is not working many subsystem such as the ib pool might not be
initialized properly that can lead to segfault inside kernel when cs
ioctl is call with non working acceleration. To avoid this make sure
the accel working flag is false when an error in GPU startup happen and
return EBUSY from cs ioctl if accel is not working.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon: Only create additional ring debugfs files on Cayman or newer.
Michel Dänzer [Tue, 21 Feb 2012 16:39:15 +0000 (17:39 +0100)]
drm/radeon: Only create additional ring debugfs files on Cayman or newer.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=46274

Tested with a Cayman card in a Llano system: The additional files are created
and working for the Cayman card but not created for the CPU's built-in GPU.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoMerge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarn...
Dave Airlie [Wed, 22 Feb 2012 08:02:17 +0000 (08:02 +0000)]
Merge branch 'drm-intel-fixes' of git://git./linux/kernel/git/jbarnes/drm-intel into drm-fixes

* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/drm-intel:
  drm/i915: do not enable RC6p on Sandy Bridge
  drm/i915: gen7: Disable the RHWO optimization as it can cause GPU hangs.
  drm/i915: gen7: work around a system hang on IVB
  drm/i915: gen7: Implement an L3 caching workaround.
  drm/i915: gen7: implement rczunit workaround

12 years agoALSA: snd-usb-caiaq: Fix the return of XRUN
Mark Hills [Tue, 21 Feb 2012 21:26:31 +0000 (21:26 +0000)]
ALSA: snd-usb-caiaq: Fix the return of XRUN

Commit 3702b08 added a lock, but did not account for the case of
SNDRV_PCM_POS_XRUN, which would get immediately overwritten.

This could be bundled into one if-else-if statement, but the goto
helps to clarify the 'exceptional' case.

Thanks to Andreas Pape for spotting this.

Signed-off-by: Mark Hills <mark@pogo.org.uk>
Acked-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agopowerpc: Fix various issues with return to userspace
Benjamin Herrenschmidt [Wed, 22 Feb 2012 05:48:32 +0000 (16:48 +1100)]
powerpc: Fix various issues with return to userspace

We have a few problems when returning to userspace. This is a
quick set of fixes for 3.3, I'll look into a more comprehensive
rework for 3.4. This fixes:

 - We kept interrupts soft-disabled when schedule'ing or calling
do_signal when returning to userspace as a result of a hardware
interrupt.

 - Rename do_signal to do_notify_resume like all other archs (and
do_signal_pending back to do_signal, which it was before Roland
changed it).

 - Add the missing call to key_replace_session_keyring() to
do_notify_resume().

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

12 years agocpuidle: Default y on powerpc pSeries
Benjamin Herrenschmidt [Wed, 22 Feb 2012 05:04:24 +0000 (16:04 +1100)]
cpuidle: Default y on powerpc pSeries

We moved all our pSeries idle loops to the cpu idle framework
so we really want it to come up by default.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agopowerpc: Fix program check handling when lockdep is enabled
Michael Ellerman [Mon, 20 Feb 2012 21:32:30 +0000 (21:32 +0000)]
powerpc: Fix program check handling when lockdep is enabled

In commit 54321242afe ("Disable interrupts early in Program Check"), we
switched from enabling to disabling interrupts in program_check_common.

Whereas ENABLE_INTS leaves r3 untouched, if lockdep is enabled DISABLE_INTS
calls into lockdep code and will clobber r3. That means we pass a bogus
struct pt_regs* into program_check_exception() and all hell breaks loose.

So load our regs pointer into r3 after we call DISABLE_INTS.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agopowerpc: Remove references to cpu_*_map
Rusty Russell [Wed, 15 Feb 2012 17:51:26 +0000 (17:51 +0000)]
powerpc: Remove references to cpu_*_map

This has been obsolescent for a while; time for the final push.

In adjacent context, replaced old cpus_* with cpumask_*.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Wed, 22 Feb 2012 02:25:30 +0000 (18:25 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  maintainers: update my email address

12 years agoMerge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Wed, 22 Feb 2012 02:24:42 +0000 (18:24 -0800)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

A few more things this time around.  The only thing warranting some
commentry is the modpost change, which allows folk building a Thumb2
enabled kernel to see section mismatch warnings.  This is why many
weren't noticed with OMAP.

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM/audit: include audit header and fix audit arch
  ARM: OMAP: fix voltage domain build errors with PM_OPP disabled
  ARM/PCI: Remove ARM's duplicate definition of 'pcibios_max_latency'
  ARM: 7336/1: smp_twd: Don't register CPUFREQ notifiers if local timers are not initialised
  ARM: 7327/1: need to include asm/system.h in asm/processor.h
  ARM: 7326/2: PL330: fix null pointer dereference in pl330_chan_ctrl()
  ARM: 7164/3: PL330: Fix the size of the dst_cache_ctrl field
  ARM: 7325/1: fix v7 boot with lockdep enabled
  ARM: 7324/1: modpost: Fix section warnings for ARM for many compilers
  ARM: 7323/1: Do not allow ARM_LPAE on pre-ARMv7 architectures

12 years agomaintainers: update my email address
James Morris [Wed, 22 Feb 2012 01:45:07 +0000 (12:45 +1100)]
maintainers: update my email address

Update my email address.

Signed-off-by: James Morris <james.l.morris@oracle.com>
12 years agosys_poll: fix incorrect type for 'timeout' parameter
Linus Torvalds [Wed, 22 Feb 2012 01:24:20 +0000 (17:24 -0800)]
sys_poll: fix incorrect type for 'timeout' parameter

The 'poll()' system call timeout parameter is supposed to be 'int', not
'long'.

Now, the reason this matters is that right now 32-bit compat mode is
broken on at least x86-64, because the 32-bit code just calls
'sys_poll()' directly on x86-64, and the 32-bit argument will have been
zero-extended, turning a signed 'int' into a large unsigned 'long'
value.

We could just introduce a 'compat_sys_poll()' function for this, and
that may eventually be what we have to do, but since the actual standard
poll() semantics is *supposed* to be 'int', and since at least on x86-64
glibc sign-extends the argument before invocing the system call (so
nobody can actually use a 64-bit timeout value in user space _anyway_,
even in 64-bit binaries), the simpler solution would seem to be to just
fix the definition of the system call to match what it should have been
from the very start.

If it turns out that somebody somehow circumvents the user-level libc
64-bit sign extension and actually uses a large unsigned 64-bit timeout
despite that not being how poll() is supposed to work, we will need to
do the compat_sys_poll() approach.

Reported-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoasm-generic: architecture independent readq/writeq for 32bit environment
Hitoshi Mitake [Tue, 7 Feb 2012 02:45:33 +0000 (11:45 +0900)]
asm-generic: architecture independent readq/writeq for 32bit environment

This provides unified readq()/writeq() helper functions for 32-bit
drivers.

For some cases, readq/writeq without atomicity is harmful, and order of
io access has to be specified explicitly.  So in this patch, new two
header files which contain non-atomic readq/writeq are added.

 - <asm-generic/io-64-nonatomic-lo-hi.h> provides non-atomic readq/
   writeq with the order of lower address -> higher address

 - <asm-generic/io-64-nonatomic-hi-lo.h> provides non-atomic readq/
   writeq with reversed order

This allows us to remove some readq()s that were added drivers when the
default non-atomic ones were removed in commit dbee8a0affd5 ("x86:
remove 32-bit versions of readq()/writeq()")

The drivers which need readq/writeq but can do with the non-atomic ones
must add the line:

  #include <asm-generic/io-64-nonatomic-lo-hi.h> /* or hi-lo.h */

But this will be nop in 64-bit environments, and no other #ifdefs are
required.  So I believe that this patch can solve the problem of
 1. driver-specific readq/writeq
 2. atomicity and order of io access

This patch is tested with building allyesconfig and allmodconfig as
ARCH=x86 and ARCH=i386 on top of tip/master.

Cc: Kashyap Desai <Kashyap.Desai@lsi.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Ravi Anand <ravi.anand@qlogic.com>
Cc: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Jason Uhlenkott <juhlenko@akamai.com>
Cc: James Bottomley <James.Bottomley@parallels.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Roland Dreier <roland@purestorage.com>
Cc: James Bottomley <jbottomley@parallels.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hitoshi Mitake <h.mitake@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoUSB: Added Kamstrup VID/PIDs to cp210x serial driver.
Bruno Thomsen [Tue, 21 Feb 2012 22:41:37 +0000 (23:41 +0100)]
USB: Added Kamstrup VID/PIDs to cp210x serial driver.

Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoUSB: Serial: ti_usb_3410_5052: Add Abbot Diabetes Care cable id
Andrew Lunn [Mon, 20 Feb 2012 08:31:57 +0000 (09:31 +0100)]
USB: Serial: ti_usb_3410_5052: Add Abbot Diabetes Care cable id

This USB-serial cable with mini stereo jack enumerates as:
Bus 001 Device 004: ID 1a61:3410 Abbott Diabetes Care

It is a TI3410 inside.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agousb-storage: fix freezing of the scanning thread
Alan Stern [Tue, 21 Feb 2012 18:16:32 +0000 (13:16 -0500)]
usb-storage: fix freezing of the scanning thread

This patch (as1521b) fixes the interaction between usb-storage's
scanning thread and the freezer.  The current implementation has a
race: If the device is unplugged shortly after being plugged in and
just as a system sleep begins, the scanning thread may get frozen
before the khubd task.  Khubd won't be able to freeze until the
disconnect processing is complete, and the disconnect processing can't
proceed until the scanning thread finishes, so the sleep transition
will fail.

The implementation in the 3.2 kernel suffers from an additional
problem.  There the scanning thread calls set_freezable_with_signal(),
and the signals sent by the freezer will mess up the thread's I/O
delays, which are all interruptible.

The solution to both problems is the same: Replace the kernel thread
used for scanning with a delayed-work routine on the system freezable
work queue.  Freezable work queues have the nice property that you can
cancel a work item even while the work queue is frozen, and no signals
are needed.

The 3.2 version of this patch solves the problem in Bugzilla #42730.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
CC: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoMerge tag 'for-usb-linus-2012-02-21' of git://git.kernel.org/pub/scm/linux/kernel...
Greg Kroah-Hartman [Wed, 22 Feb 2012 00:25:30 +0000 (16:25 -0800)]
Merge tag 'for-usb-linus-2012-02-21' of git://git./linux/kernel/git/sarah/xhci into usb-linus

Hi Greg,

Here's three bug fixes that should be queued for 3.3.

The first fixes an issue we saw with an Intel Panther Point xHCI host,
where a certain OSV's custom BIOS would disable the PCI device during
boot.  It changes the generic PCI quirks handler for all USB host
controllers, but in a way both Jesse Barnes and Oliver Neukum have
agreed is safe.

The second patch is Elric Fu's first kernel patch!  Congrats!  It fixes
a bug in the USB 3.0 hub reset handling.

The last patch fixes a bug in the xHCI driver that feeds invalid input
to the xHC host.  Only the VIA host controller seems to have issues with
it.  Thanks to Felipe Contreras for testing this patch on his VIA host,
and Andiry Xu for suggesting the fix.

All three patches are marked for stable.

Sarah Sharp

12 years agoxhci: Fix encoding for HS bulk/control NAK rate.
Sarah Sharp [Mon, 13 Feb 2012 22:42:11 +0000 (14:42 -0800)]
xhci: Fix encoding for HS bulk/control NAK rate.

The xHCI 0.96 spec says that HS bulk and control endpoint NAK rate must
be encoded as an exponent of two number of microframes.  The endpoint
descriptor has the NAK rate encoded in number of microframes.  We were
just copying the value from the endpoint descriptor into the endpoint
context interval field, which was not correct.  This lead to the VIA
host rejecting the add of a bulk OUT endpoint from any USB 2.0 mass
storage device.

The fix is to use the correct encoding.  Refactor the code to convert
number of frames to an exponential number of microframes, and make sure
we convert the number of microframes in HS bulk and control endpoints to
an exponent.

This should be back ported to kernels as old as 2.6.31, that contain the
commit dfa49c4ad120a784ef1ff0717168aa79f55a483a "USB: xhci - fix math
in xhci_get_endpoint_interval"

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Felipe Contreras <felipe.contreras@gmail.com>
Suggested-by: Andiry Xu <andiry.xu@amd.com>
Cc: stable@vger.kernel.org
12 years agoUSB: Set hub depth after USB3 hub reset
Elric Fu [Sat, 18 Feb 2012 05:32:27 +0000 (13:32 +0800)]
USB: Set hub depth after USB3 hub reset

The superspeed device attached to a USB 3.0 hub(such as VIA's)
doesn't respond the address device command after resume. The
root cause is the superspeed hub will miss the Hub Depth value
that is used as an offset into the route string to locate the
bits it uses to determine the downstream port number after
reset, and all packets can't be routed to the device attached
to the superspeed hub.

Hub driver sends a Set Hub Depth request to the superspeed hub
except for USB 3.0 root hub when the hub is initialized and
doesn't send the request again after reset due to the resume
process. So moving the code that sends the Set Hub Depth request
to the superspeed hub from hub_configure() to hub_activate()
is to cover those situations include initialization and reset.

The patch should be backported to kernels as old as 2.6.39.

Signed-off-by: Elric Fu <elricfu1@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable@vger.kernel.org
12 years agoUSB: Fix handoff when BIOS disables host PCI device.
Sarah Sharp [Tue, 7 Feb 2012 23:11:46 +0000 (15:11 -0800)]
USB: Fix handoff when BIOS disables host PCI device.

On some systems with an Intel Panther Point xHCI host controller, the
BIOS disables the xHCI PCI device during boot, and switches the xHCI
ports over to EHCI.  This allows the BIOS to access USB devices without
having xHCI support.

The downside is that the xHCI BIOS handoff mechanism will fail because
memory mapped I/O is not enabled for the disabled PCI device.
Jesse Barnes says this is expected behavior.  The PCI core will enable
BARs before quirks run, but it will leave it in an undefined state, and
it may not have memory mapped I/O enabled.

Make the generic USB quirk handler call pci_enable_device() to re-enable
MMIO, and call pci_disable_device() once the host-specific BIOS handoff
is finished.  This will balance the ref counts in the PCI core.  When
the PCI probe function is called, usb_hcd_pci_probe() will call
pci_enable_device() again.

This should be back ported to kernels as old as 2.6.31.  That was the
first kernel with xHCI support, and no one has complained about BIOS
handoffs failing due to memory mapped I/O being disabled on other hosts
(EHCI, UHCI, or OHCI).

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org
12 years agoARM: remove disable_fiq and arch_ret_to_user macros
Rob Herring [Sat, 4 Feb 2012 15:41:36 +0000 (09:41 -0600)]
ARM: remove disable_fiq and arch_ret_to_user macros

Now that most platforms don't need disable_fiq and arch_ret_to_user
macros, we can remove the empty macros or empty entry-macro.S files.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: make entry-macro.S depend on !MULTI_IRQ_HANDLER
Rob Herring [Thu, 9 Feb 2012 00:26:34 +0000 (18:26 -0600)]
ARM: make entry-macro.S depend on !MULTI_IRQ_HANDLER

With the removal of disable_fiq on rpc and addition MULTI_IRQ_HANDLER,
entry-macro.S is no longer needed for platforms that select
MULTI_IRQ_HANDLER and the include of it can be conditional.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
12 years agoARM: rpc: make default fiq handler run-time installed
Rob Herring [Thu, 9 Feb 2012 00:24:23 +0000 (18:24 -0600)]
ARM: rpc: make default fiq handler run-time installed

Only rpc uses disable_fiq macro. Change it to a run-time installed
default FIQ handler. The handler is installed before FIQ is enabled
so the behavior should be unchanged.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
12 years agoARM: make arch_ret_to_user macro optional
Rob Herring [Tue, 7 Feb 2012 15:28:22 +0000 (09:28 -0600)]
ARM: make arch_ret_to_user macro optional

Only 3 platforms need arch_ret_to_user macro, so add ARCH_HAS_RET_TO_USER
kconfig option and make iop13xx, iop32x and iop33x select it.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
12 years agohwmon: (max6639) Fix PPR register initialization to set both channels
Chris D Schimp [Mon, 20 Feb 2012 22:44:59 +0000 (17:44 -0500)]
hwmon: (max6639) Fix PPR register initialization to set both channels

Initialize PPR register for both channels, and set correct PPR register bits.
Also remove unnecessary variable initializations.

Signed-off-by: Chris D Schimp <silverchris@gmail.com>
[guenter.roeck@ericsson.com: Merged two patches into one]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Roland Stigge <stigge@antcom.de>