Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>

Merge commit 752451f0 ("Merge branch 'i2c-embedded/for-next' of
git://git.pengutronix.de/git/wsa/linux") resulted in a build breakage
for OMAP

  arch/arm/mach-omap2/i2c.c: In function 'omap_pm_set_max_mpu_wakeup_lat_compat':
  arch/arm/mach-omap2/i2c.c:130:2: error: implicit declaration of function 'omap_pm_set_max_mpu_wakeup_lat'
  make[1]: *** [arch/arm/mach-omap2/i2c.o] Error 1

Fix this by including the appropriate header file with the function
prototype.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull virtio update from Rusty Russell:
 "Some nice cleanups, and even a patch my wife did as a "live" demo for
  Latinoware 2012.

  There's a slightly non-trivial merge in virtio-net, as we cleaned up
  the virtio add_buf interface while DaveM accepted the mq virtio-net
  patches."

* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (27 commits)
  virtio_console: Add support for remoteproc serial
  virtio_console: Merge struct buffer_token into struct port_buffer
  virtio: add drv_to_virtio to make code clearly
  virtio: use dev_to_virtio wrapper in virtio
  virtio-mmio: Fix irq parsing in command line parameter
  virtio_console: Free buffers from out-queue upon close
  virtio: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
  virtio_console: Use kmalloc instead of kzalloc
  virtio_console: Free buffer if splice fails
  virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0
  virtio: scsi: make it clear that virtqueue_add_buf() no longer returns > 0
  virtio: rpmsg: make it clear that virtqueue_add_buf() no longer returns > 0
  virtio: net: make it clear that virtqueue_add_buf() no longer returns > 0
  virtio: console: make it clear that virtqueue_add_buf() no longer returns > 0
  virtio: make virtqueue_add_buf() returning 0 on success, not capacity.
  virtio: console: don't rely on virtqueue_add_buf() returning capacity.
  virtio_net: don't rely on virtqueue_add_buf() returning capacity.
  virtio-net: remove unused skb_vnet_hdr->num_sg field
  virtio-net: correct capacity math on ring full
  virtio: move queue_index and num_free fields into core struct virtqueue.
  ...

Pull sound fixes from Takashi Iwai:
 "This update contains overall only driver-specific fixes.  Slightly
  large LOC are seen in usb-audio driver for a couple of new device
  quirks and cs42l71 ASoC driver for enhanced features.  The others are
  a few small (regression) fixes HD-audio, and yet other small / trival
  ASoC fixes."

* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Support for Digidesign Mbox 2 USB sound card:
  ALSA: HDA: Fix sound resume hang
  ALSA: hda - bug fix for invalid connection list of Haswell HDMI codec pins
  ALSA: hda - Fix the wrong pincaps set in ALC861VD dallas/hp fixup
  ALSA: hda - Set codec->single_adc_amp flag for Realtek codecs
  ASoC: atmel-ssc: change disable to disable in dts node
  ASoC: Prevent pop_wait overwrite
  ALSA: usb-audio: ignore-quirk for HP Wireless Audio
  ALSA: hda - Always turn on pins for HDMI/DP
  ALSA: hda - Fix pin configuration of HP Pavilion dv7
  ASoC: core: Fix splitting of log messages
  ASoC: cs42l73: Change VSPIN/VSPOUT to VSPINOUT
  ASoC: cs42l73: Add DAPM events for power down.
  ASoC: cs42l73: Add DMIC's as DAPM inputs.
  ASoC: sigmadsp: Fix endianness conversion issue
  ASoC: tpa6130a2: Use devm_* APIs

Pull UBI update from Artem Bityutskiy:
 "Nothing exciting, just clean-ups and nicification.  Oh, and one small
  optimization which makes UBI to use less RAM."

* tag 'upstream-3.8-rc1' of git://git.infradead.org/linux-ubi:
  UBI: embed ubi_debug_info field in ubi_device struct
  UBI: introduce helpers dbg_chk_{io, gen}
  UBI: replace memcpy with struct assignment
  UBI: remove spurious comment
  UBI: gluebi: rename misleading variables
  UBI: do not allocate the memory unnecessarily
  UBI: use list_move_tail instead of list_del/list_add_tail

Merge tags 'disintegrate-h8300-20121219', 'disintegrate-m32r-20121219' and 'disintegrate-score-20121220' of git://git.infradead.org/users/dhowells/linux-headers

Pull UAPI disintegration for H8/300, M32R and Score from David Howells.

Scripted UAPI patches for architectures that apparently never reacted to
it on their own.

* tag 'disintegrate-h8300-20121219' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate arch/h8300/include/asm

* tag 'disintegrate-m32r-20121219' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate arch/m32r/include/asm

* tag 'disintegrate-score-20121220' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate arch/score/include/asm

Pull CRIS changes from Jesper Nilsson.

... mainly the UAPI disintegration.

* tag 'cris-for-linus-3.8' of git://jni.nu/cris:
  UAPI: Fix up empty files in arch/cris/
  CRIS: locking: fix the return value of arch_read_trylock()
  CRIS: use kbuild.h instead of defining macros in asm-offset.c
  UAPI: (Scripted) Disintegrate arch/cris/include/asm
  UAPI: (Scripted) Disintegrate arch/cris/include/arch-v32/arch
  UAPI: (Scripted) Disintegrate arch/cris/include/arch-v10/arch

Pull ARM SoC fixes from Olof Johansson:
 "This is a batch of fixes for arm-soc platforms, most of it is for OMAP
  but there are others too (i.MX, Tegra, ep93xx).  Fixes warnings, some
  broken platforms and drivers, etc.  A bit all over the map really."

There was some concern about commit 68136b10 ("RM: sunxi: Change device
tree naming scheme for sunxi"), but Tony says:
 "Looks like that's trivial to fix as needed, no need to rebuild the
  branch to fix that AFAIK.

  The fix can be done once Olof is available online again.

  Linus, I suggest that you go ahead and pull this if there are no other
  issues with this branch."

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
  ARM: sunxi: Change device tree naming scheme for sunxi
  ARM: ux500: fix missing include
  ARM: u300: delete custom pin hog code
  ARM: davinci: fix build break due to missing include
  ARM: exynos: Fix warning due to missing 'inline' in stub
  ARM: imx: Move platform-mx2-emma to arch/arm/mach-imx/devices
  ARM i.MX51 clock: Fix regression since enabling MIPI/HSP clocks
  ARM: dts: mx27: Fix the AIPI bus for FEC
  ARM: OMAP2+: common: remove use of vram
  ARM: OMAP3/4: cpuidle: fix sparse and checkpatch warnings
  ARM: OMAP4: clock data: DPLLs are missing bypass clocks in their parent lists
  ARM: OMAP4: clock data: div_iva_hs_clk is a power-of-two divider
  ARM: OMAP4: Fix EMU clock domain always on
  ARM: OMAP4460: Workaround ABE DPLL failing to turn-on
  ARM: OMAP4: Enhance support for DPLLs with 4X multiplier
  ARM: OMAP4: Add function table for non-M4X dplls
  ARM: OMAP4: Update timer clock aliases
  ARM: OMAP: Move plat/omap-serial.h to include/linux/platform_data/serial-omap.h
  ARM: dts: Add build target for omap4-panda-a4
  ARM: dts: OMAP2420: Correct H4 board memory size
  ...

Pull dma-buf updates from Sumit Semwal:
 "A fairly small dma-buf pull request for 3.8 - only 2 patches"

* tag 'tag-for-linus-3.8' of git://git.linaro.org/people/sumitsemwal/linux-dma-buf:
  dma-buf: remove fallback for !CONFIG_DMA_SHARED_BUFFER
  dma-buf: might_sleep() in dma_buf_unmap_attachment()

Pull hwmon subsystem update from Jean Delvare:
 "There are many improvements to the it87 driver, as well as suspend
  support for the Winbond Super-I/O chips, and a few other fixes."

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon-vid: Add support for AMD family 11h to 15h processors
  hwmon: (it87) Support PECI for additional chips
  hwmon: (it87) Report thermal sensor type as Intel PECI if appropriate
  hwmon: (it87) Manage device specific features with table
  hwmon: (it87) Replace pwm group macro with direct attribute definitions
  hwmon: (it87) Avoid quoted string splits across lines
  hwmon: (it87) Save fan registers in 2-dimensional array
  hwmon: (it87) Introduce support for tempX_offset sysfs attribute
  hwmon: (it87) Replace macro defining tempX_type sensors with direct definitions
  hwmon: (it87) Save voltage register values in 2-dimensional array
  hwmon: (it87) Save temperature registers in 2-dimensional array
  hwmon: (w83627ehf) Get rid of smatch warnings
  hwmon: (w83627hf) Don't touch nonexistent I2C address registers
  hwmon: (w83627ehf) Add support for suspend
  hwmon: (w83627hf) Add support for suspend
  hwmon: Fix PCI device reference leak in quirk

The rmap walks in ksm.c are like those in rmap.c: they can safely be
done with anon_vma_lock_read().
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

task_numa_placement() oopsed on NULL p->mm when task_numa_fault() got
called in the handling of break_ksm() for ksmd.  That might be a
peculiar case, which perhaps KSM could takes steps to avoid? but it's
more robust if task_numa_placement() allows for such a possibility.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

On a 4GB RAM machine, where Normal zone is much smaller than DMA32 zone,
the Normal zone gets fragmented in time.  This requires relatively more
pressure in balance_pgdat to get the zone above the required watermark.
Unfortunately, the congestion_wait() call in there slows it down for a
completely wrong reason, expecting that there's a lot of
writeback/swapout, even when there's none (much more common).  After a
few days, when fragmentation progresses, this flawed logic translates to
a very high CPU iowait times, even though there's no I/O congestion at
all.  If THP is enabled, the problem occurs sooner, but I was able to
see it even on !THP kernels, just by giving it a bit more time to occur.

The proper way to deal with this is to not wait, unless there's
congestion.  Thanks to Mel Gorman, we already have the function that
perfectly fits the job.  The patch was tested on a machine which nicely
revealed the problem after only 1 day of uptime, and it's been working
great.
Signed-off-by: Zlatko Calusic <zlatko.calusic@iskon.hr>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Fix up three empty files in arch/cris/ by sticking placeholder comments in
there to prevent the patch program from deleting them.

I decided not to delete the arch-v*/Kbuild files as it's possibly someone might
want to use them for genhdr-y lines in the future, but they could be deleted
and the pointer lines removed from asm/Kbuild.  The uapi/arch-v*/Kbuild files
ought to be uneffected by such a change.

asm/swab.h didn't have anything outside of __KERNEL__ so nothing appeared in
uapi/asm/swab.h.  The latter, however, is exported by Kbuild.asm.

This needs to be applied after the CRIS UAPI disintegration patch.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>

arch_write_trylock() should return 'ret' instead of always
return 1.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>

Merge tag 'disintegrate-cris-20121009' of git://git.infradead.org/users/dhowells/linux-headers into for-linus2

UAPI Disintegration 2012-10-09

* tag 'disintegrate-cris-20121009' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate arch/cris/include/asm
  UAPI: (Scripted) Disintegrate arch/cris/include/arch-v32/arch
  UAPI: (Scripted) Disintegrate arch/cris/include/arch-v10/arch

This is modelled on commits such as the one below:

Commit fc1c3a00 ("sh: use kbuild.h
instead of defining macros in asm-offsets.c") introduced in v2.6.26.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Acked-by: Liqin Chen <liqin299@gmail.com>

Documentation says that code requiring dma-buf should add it to
select, so inline fallbacks are not going to be used. A link error
will make it obvious what went wrong, instead of silently doing
nothing at runtime.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>

We never really clarified if unmap could be done in atomic context.
But since mapping might require sleeping, this implies mutex in use
to synchronize mapping/unmapping, so unmap could sleep as well.  Add
a might_sleep() to clarify this.
Signed-off-by: Rob Clark <rob@ti.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>

Pull sparc fixes from David Miller:
 "Please pull to get these sparc AES/DES/CAMELLIA crypto bug fixes as
  well as an addition of a pte_accessible() define for sparc64 and a
  hugetlb fix from Dave Kleikamp."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in CAMELLIA code.
  sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in DES code.
  sparc64: Fix ECB looping constructs in AES code.
  sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in AES code.
  sparc64: Fix AES ctr mode block size.
  sparc64: Fix unrolled AES 256-bit key loops.
  sparc64: Define pte_accessible()
  sparc: huge_ptep_set_* functions need to call set_huge_pte_at()

Pull networking fixes from David Miller:

 1) Really fix tuntap SKB use after free bug, from Eric Dumazet.

 2) Adjust SKB data pointer to point past the transport header before
    calling icmpv6_notify() so that the headers are in the state which
    that function expects.  From Duan Jiong.

 3) Fix ambiguities in the new tuntap multi-queue APIs.  From Jason
    Wang.

 4) mISDN needs to use del_timer_sync(), from Konstantin Khlebnikov.

 5) Don't destroy mutex after freeing up device private in mac802154,
    fix also from Konstantin Khlebnikov.

 6) Fix INET request socket leak in TCP and DCCP, from Christoph Paasch.

 7) SCTP HMAC kconfig rework, from Neil Horman.

 8) Fix SCTP jprobes function signature, otherwise things explode, from
    Daniel Borkmann.

 9) Fix typo in ipv6-offload Makefile variable reference, from Simon
    Arlott.

10) Don't fail USBNET open just because remote wakeup isn't supported,
    from Oliver Neukum.

11) be2net driver bug fixes from Sathya Perla.

12) SOLOS PCI ATM driver bug fixes from Nathan Williams and David
    Woodhouse.

13) Fix MTU changing regression in 8139cp driver, from John Greene.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits)
  solos-pci: ensure all TX packets are aligned to 4 bytes
  solos-pci: add firmware upgrade support for new models
  solos-pci: remove superfluous debug output
  solos-pci: add GPIO support for newer versions on Geos board
  8139cp: Prevent dev_close/cp_interrupt race on MTU change
  net: qmi_wwan: add ZTE MF880
  drivers/net: Use of_match_ptr() macro in smsc911x.c
  drivers/net: Use of_match_ptr() macro in smc91x.c
  ipv6: addrconf.c: remove unnecessary "if"
  bridge: Correctly encode addresses when dumping mdb entries
  bridge: Do not unregister all PF_BRIDGE rtnl operations
  use generic usbnet_manage_power()
  usbnet: generic manage_power()
  usbnet: handle PM failure gracefully
  ksz884x: fix receive polling race condition
  qlcnic: update driver version
  qlcnic: fix unused variable warnings
  net: fec: forbid FEC_PTP on SoCs that do not support
  be2net: fix wrong frag_idx reported by RX CQ
  be2net: fix be_close() to ensure all events are ack'ed
  ...

Merge tags 'dt-for-linus', 'gpio-for-linus' and 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull devicetree, gpio and spi bugfixes from Grant Likely:
 "Device tree v3.8 bug fix:
   - Fixes an undefined struct device build error and a missing symbol
     export.

  GPIO device driver bug fixes:
   - gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
   - gpio/ich: Add missing spinlock init

  SPI device driver bug fixes:
   - Most of this is bug fixes to the core code and the sh-hspi and
     s3c64xx device drivers.

   - There is also a patch here to add DT support to the Atmel driver.
     This one should have been in the first round, but I missed it.
     It's a low risk change contained within a single driver and the
     Atmel maintainer has requested it."

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  of: define struct device in of_platform.h if !OF_DEVICE and !OF_ADDRESS
  of: Fix export of of_find_matching_node_and_match()

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
  gpio/ich: Add missing spinlock init

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  spi/sh-hspi: fix return value check in hspi_probe().
  spi: fix tegra SPI binding examples
  spi/atmel: add DT support
  of/spi: Fix SPI module loading by using proper "spi:" modalias prefixes.
  spi: Change FIFO flush operation and spi channel off
  spi: Keep chipselect assertion during one message

Pull drm bugfix from Dave Airlie:
 "Just a single urgent regression fix, seeing a few wierd behaviours I'd
  like not to persist."

* 'drm-next' of git://people.freedesktop.org/~airlied/linux:
  drm/ttm: fix delayed ttm_bo_cleanup_refs_and_unlock delayed handling

Pull random updates from Ted Ts'o:
 "A few /dev/random improvements for the v3.8 merge window."

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: Mix cputime from each thread that exits to the pool
  random: prime last_data value per fips requirements
  random: fix debug format strings
  random: make it possible to enable debugging without rebuild

We use the FPU and therefore cannot sleep during the crypto
loops.
Signed-off-by: David S. Miller <davem@davemloft.net>

We use the FPU and therefore cannot sleep during the crypto
loops.
Signed-off-by: David S. Miller <davem@davemloft.net>

Things works better when you increment the source buffer pointer
properly.
Signed-off-by: David S. Miller <davem@davemloft.net>

We use the FPU and therefore cannot sleep during the crypto
loops.
Signed-off-by: David S. Miller <davem@davemloft.net>

Like the generic versions, we need to support a block size
of '1' for CTR mode AES.

This was discovered thanks to all of the new test cases added by
Jussi Kivilinna.
Signed-off-by: David S. Miller <davem@davemloft.net>

The basic scheme of the block mode assembler is that we start by
enabling the FPU, loading the key into the floating point registers,
then iterate calling the encrypt/decrypt routine for each block.

For the 256-bit key cases, we run short on registers in the unrolled
loops.

So the {ENCRYPT,DECRYPT}_256_2() macros reload the key registers that
get clobbered.

The unrolled macros, {ENCRYPT,DECRYPT}_256(), are not mindful of this.

So if we have a mix of multi-block and single-block calls, the
single-block unrolled 256-bit encrypt/decrypt can run with some
of the key registers clobbered.

Handle this by always explicitly loading those registers before using
the non-unrolled 256-bit macro.

This was discovered thanks to all of the new test cases added by
Jussi Kivilinna.
Signed-off-by: David S. Miller <davem@davemloft.net>

The FPGA can't handled unaligned DMA (yet). So copy into an aligned buffer,
if skb->data isn't suitably aligned.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

dwmw2: Tidy up a little, simpler matching on which GPIO is being accessed,
       only register on newer boards, register under PCI device instead of
       duplicating them under each ATM device.
Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

commit:  cb64edb6 upstream

Above commit may introduce a race between cp_interrupt and dev_close
/ change MTU / dev_open up state. Changes cp_interrupt to tolerate
this.  Change spin_locking in cp_interrupt to avoid possible
but unobserved race.
Reported-by: "Francois Romieu" <romieu@fr.zoreil.com>

Tested on virtual hardware, Tx MTU size up to 4096, max tx payload
    was ping -s 4068 for MTU of 4096. No real hardware, need test
    assist.
Signed-off-by: "John Greene" <jogreene@redhat.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: "David Woodhouse" <David.Woodhouse@intel.com>
Tested-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

When building without device tree support (for the mv78x00 SoCs for
example), the build failed because of_irq_count is undeclared. However
mvebu-gpio is not designed to build without device tree support. So
make it depends on OF_CONFIG, remove the #ifdef OF_CONFIG line and the
platform_device_id.

Tested on RD-78x00-mASA, DB-78460-BP, DB-88F6710-BP-DDR3,
DB-MV784MP-GP, Mirabox and OpenBlocks AX3.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

As reported by CONFIG_DEBUG_SPINLOCK=y.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

Fix regression introduced by 85b144f8
"drm/ttm: call ttm_bo_cleanup_refs with reservation and lru lock held, v3"

Slowpath ttm_bo_cleanup_refs_and_unlock accidentally tried to increase
refcount on &bo->sync_obj instead of bo->sync_obj.

The compiler didn't complain since sync_obj_ref takes a void pointer,
so it was still valid c.

This could result in lockups, memory corruptions, and warnings like
these when graphics card VRAM usage is high:

------------[ cut here ]------------
WARNING: at include/linux/kref.h:42 radeon_fence_ref+0x2c/0x40()
Hardware name: System Product Name
Pid: 157, comm: X Not tainted 3.7.0-rc7-00520-g85b144f8-dirty #174
Call Trace:
[<ffffffff81058c84>] ? warn_slowpath_common+0x74/0xb0
[<ffffffff8129273c>] ? radeon_fence_ref+0x2c/0x40
[<ffffffff8125e95c>] ? ttm_bo_cleanup_refs_and_unlock+0x18c/0x2d0
[<ffffffff8125f17c>] ? ttm_mem_evict_first+0x1dc/0x2a0
[<ffffffff81264452>] ? ttm_bo_man_get_node+0x62/0xb0
[<ffffffff8125f4ce>] ? ttm_bo_mem_space+0x28e/0x340
[<ffffffff8125fb0c>] ? ttm_bo_move_buffer+0xfc/0x170
[<ffffffff810de172>] ? kmem_cache_alloc+0xb2/0xc0
[<ffffffff8125fc15>] ? ttm_bo_validate+0x95/0x110
[<ffffffff8125ff7c>] ? ttm_bo_init+0x2ec/0x3b0
[<ffffffff8129419a>] ? radeon_bo_create+0x18a/0x200
[<ffffffff81293e80>] ? radeon_bo_clear_va+0x40/0x40
[<ffffffff812a5342>] ? radeon_gem_object_create+0x92/0x160
[<ffffffff812a575c>] ? radeon_gem_create_ioctl+0x6c/0x150
[<ffffffff812a529f>] ? radeon_gem_object_free+0x2f/0x40
[<ffffffff81246b60>] ? drm_ioctl+0x420/0x4f0
[<ffffffff812a56f0>] ? radeon_gem_pwrite_ioctl+0x20/0x20
[<ffffffff810f53a4>] ? do_vfs_ioctl+0x2e4/0x4e0
[<ffffffff810e5588>] ? vfs_read+0x118/0x160
[<ffffffff810f55ec>] ? sys_ioctl+0x4c/0xa0
[<ffffffff810e5851>] ? sys_read+0x51/0xa0
[<ffffffff814b0612>] ? system_call_fastpath+0x16/0x1b
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Since family 11h processors, AMD is exclusively using 7-bit VID codes
transmitted using a serial protocol over two pins (clock and data.)
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: David Hubbard <david.c.hubbard@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>