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9 years agothermal: cpu_cooling: get_property() doesn't need to support GET_MAXL anymore
Viresh Kumar [Thu, 4 Dec 2014 04:12:03 +0000 (09:42 +0530)]
thermal: cpu_cooling: get_property() doesn't need to support GET_MAXL anymore

We don't use get_property() to find max levels anymore as it is done at boot
now. So, don't support GET_MAXL in get_property().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: find max level during device registration
Viresh Kumar [Thu, 4 Dec 2014 04:12:02 +0000 (09:42 +0530)]
thermal: cpu_cooling: find max level during device registration

CPU frequency tables don't update after the driver is registered and so we don't
need to iterate over them to find total number of states every time
cpufreq_get_max_state() is called. Do it once at boot time.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: remove unnecessary wrapper get_cpu_frequency()
Viresh Kumar [Thu, 4 Dec 2014 04:12:01 +0000 (09:42 +0530)]
thermal: cpu_cooling: remove unnecessary wrapper get_cpu_frequency()

get_cpu_frequency() isn't doing much by itself, just calling get_property(). And
so this wrapper isn't required at all. Get rid of it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: Merge cpufreq_apply_cooling() into cpufreq_set_cur_state()
Viresh Kumar [Thu, 4 Dec 2014 04:12:00 +0000 (09:42 +0530)]
thermal: cpu_cooling: Merge cpufreq_apply_cooling() into cpufreq_set_cur_state()

cpufreq_apply_cooling() has a single caller, cpufreq_set_cur_state() and
cpufreq_set_cur_state() is an unnecessary wrapper over cpufreq_apply_cooling().

Get rid of it by merging both routines.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: initialize 'cpufreq_val' on registration
Viresh Kumar [Thu, 4 Dec 2014 04:11:59 +0000 (09:41 +0530)]
thermal: cpu_cooling: initialize 'cpufreq_val' on registration

There is no point checking for validity of 'cpufreq_val' from
cpufreq_thermal_notifier() every time the routine is called. Its guaranteed to
be 0 on the first call but will be valid otherwise.

Lets update it once while the device registers.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: do error handling at the bottom in __cpufreq_cooling_register()
Viresh Kumar [Thu, 4 Dec 2014 04:11:58 +0000 (09:41 +0530)]
thermal: cpu_cooling: do error handling at the bottom in __cpufreq_cooling_register()

This makes life easy and bug free. And is scalable for future resource
allocations.

Acked-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: Don't check is_cpufreq_valid()
Viresh Kumar [Thu, 4 Dec 2014 04:11:57 +0000 (09:41 +0530)]
thermal: cpu_cooling: Don't check is_cpufreq_valid()

Because get_cpu_frequency() has returned a valid frequency, it means that the
cpufreq policy is surely valid and so no point checking that again with
is_cpufreq_valid(). Get rid of the routine as well as there are no more users.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: don't iterate over all allowed_cpus to update cpufreq policy
Viresh Kumar [Thu, 4 Dec 2014 04:11:56 +0000 (09:41 +0530)]
thermal: cpu_cooling: don't iterate over all allowed_cpus to update cpufreq policy

All CPUs present in 'allowed_cpus' share the same 'struct cpufreq_policy'
structure and so calling cpufreq_update_policy() for each of them doesn't make
sense.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: Don't match min/max frequencies for all CPUs on cooling register
Viresh Kumar [Thu, 4 Dec 2014 04:11:55 +0000 (09:41 +0530)]
thermal: cpu_cooling: Don't match min/max frequencies for all CPUs on cooling register

In __cpufreq_cooling_register() we try to match min/max frequencies for all CPUs
passed in 'clip_cpus' mask. This mask is the cpumask of cpus where the frequency
constraints will be applied.

Same frequency constraint can be applied only to the CPUs belonging to the same
cluster (i.e. CPUs sharing clock line). For all such CPUs we have a single
'struct cpufreq_policy' structure managing them and so getting policies for all
CPUs wouldn't make any sense as they will all return the same pointer.

So, remove this useless check of checking min/max for all CPUs. Also update doc
comment to make this more obvious that clip_cpus should be same as
policy->related_cpus.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: propagate error returned by idr_alloc()
Viresh Kumar [Thu, 4 Dec 2014 04:11:54 +0000 (09:41 +0530)]
thermal: cpu_cooling: propagate error returned by idr_alloc()

We aren't supposed to return our own error type here. Return what we got.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: no need to initialze 'ret'
Viresh Kumar [Thu, 4 Dec 2014 04:11:53 +0000 (09:41 +0530)]
thermal: cpu_cooling: no need to initialze 'ret'

ret is initialized before it is used, so no need to set it to 0 in its declaration.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: no need to set cpufreq_dev to NULL
Viresh Kumar [Thu, 4 Dec 2014 04:11:52 +0000 (09:41 +0530)]
thermal: cpu_cooling: no need to set cpufreq_dev to NULL

It will be overwritten soon with return value of kzalloc().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: no need to set cpufreq_state to zero
Viresh Kumar [Thu, 4 Dec 2014 04:11:51 +0000 (09:41 +0530)]
thermal: cpu_cooling: no need to set cpufreq_state to zero

Its already zero, we allocated cpufreq_dev with kzalloc.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: Pass variable instead of its type to sizeof()
Viresh Kumar [Thu, 4 Dec 2014 04:11:50 +0000 (09:41 +0530)]
thermal: cpu_cooling: Pass variable instead of its type to sizeof()

Just following coding guidelines here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: Add comment to clarify relation between cooling state and frequency
Viresh Kumar [Thu, 4 Dec 2014 04:11:49 +0000 (09:41 +0530)]
thermal: cpu_cooling: Add comment to clarify relation between cooling state and frequency

This wasn't explained well anywhere and should be clearly specified. Lets add a
top level comment for this.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: fix doc comment over struct cpufreq_cooling_device
Viresh Kumar [Thu, 4 Dec 2014 04:11:48 +0000 (09:41 +0530)]
thermal: cpu_cooling: fix doc comment over struct cpufreq_cooling_device

cooling_cpufreq_lock isn't used to protect this structure and so the comment
over it is outdated. Fix it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: random comment fixups
Viresh Kumar [Thu, 4 Dec 2014 04:11:47 +0000 (09:41 +0530)]
thermal: cpu_cooling: random comment fixups

s/give/given

Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: exynos: pass cpu_present_mask to cpufreq_cooling_register()
Viresh Kumar [Thu, 4 Dec 2014 04:11:46 +0000 (09:41 +0530)]
thermal: exynos: pass cpu_present_mask to cpufreq_cooling_register()

cpufreq_cooling_register() expects mask of all the CPUs where frequency
constraint is applicable.

This platform has more than one CPU to which these constraints will apply and so
passing mask of only CPU0 wouldn't be sufficient. Also, this platform has a
single cluster of CPUs and the constraint applies to all CPUs.

If CPU0 is hoplugged out then we may face strange BUGs as cpu_cooling framework
isn't aware of any siblings sharing clock line.

Fix it by passing cpu_present_mask to cpufreq_cooling_register().

Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: imx: pass cpu_present_mask to cpufreq_cooling_register()
Viresh Kumar [Thu, 4 Dec 2014 04:11:45 +0000 (09:41 +0530)]
thermal: imx: pass cpu_present_mask to cpufreq_cooling_register()

cpufreq_cooling_register() expects mask of all the CPUs where frequency
constraint is applicable.

This platform has more than one CPU to which these constraints will apply and so
passing mask of only CPU0 wouldn't be sufficient. Also, this platform has a
single cluster of CPUs and the constraint applies to all CPUs.

If CPU0 is hoplugged out then we may face strange BUGs as cpu_cooling framework
isn't aware of any siblings sharing clock line.

Fix it by passing cpu_present_mask to cpufreq_cooling_register().

Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: db8500: pass cpu_present_mask to cpufreq_cooling_register()
Viresh Kumar [Thu, 4 Dec 2014 04:11:44 +0000 (09:41 +0530)]
thermal: db8500: pass cpu_present_mask to cpufreq_cooling_register()

cpufreq_cooling_register() expects mask of all the CPUs where frequency
constraint is applicable.

This platform has more than one CPU to which these constraints will apply and so
passing mask of only CPU0 wouldn't be sufficient. Also, this platform has a
single cluster of CPUs and the constraint applies to all CPUs.

If CPU0 is hoplugged out then we may face strange BUGs as cpu_cooling framework
isn't aware of any siblings sharing clock line.

Fix it by passing cpu_present_mask to cpufreq_cooling_register().

Cc: Hongbo Zhang <hongbo.zhang@linaro.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agothermal: cpu_cooling: check for the readiness of cpufreq layer
Eduardo Valentin [Thu, 4 Dec 2014 04:11:43 +0000 (09:41 +0530)]
thermal: cpu_cooling: check for the readiness of cpufreq layer

In this patch, the cpu_cooling code checks for the usability of cpufreq
layer before proceeding with the CPU cooling device registration. The
main reason is: CPU cooling device is not usable if cpufreq cannot
switch frequencies.

Similar checks are spread in thermal drivers. Thus, the advantage now
is to have the check in a single place: cpu cooling device registration.
For this reason, this patch also updates the existing drivers that
depend on CPU cooling to simply propagate the error code of the cpu
cooling registration call. Therefore, in case cpufreq is not ready, the
thermal drivers will still return -EPROBE_DEFER, in an attempt to try
again when cpufreq layer gets ready.

Cc: devicetree@vger.kernel.org
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
9 years agoMerge tag 'staging-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sat, 29 Nov 2014 00:08:09 +0000 (16:08 -0800)]
Merge tag 'staging-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO driver fixes from Greg KH:
 "Here are some staging and IIO driver fixes for 3.18-rc7 that resolve a
  number of reported issues, and a new device id for a staging wireless
  driver.

  All of these have been in linux-next"

* tag 'staging-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8188eu: Add new device ID for DLink GO-USB-N150
  staging: r8188eu: Fix scheduling while atomic error introduced in commit fadbe0cd
  iio: accel: bmc150: set low default thresholds
  iio: accel: bmc150: Fix iio_event_spec direction
  iio: accel: bmc150: Send x, y and z motion separately
  iio: accel: bmc150: Error handling when mode set fails
  iio: gyro: bmg160: Fix iio_event_spec direction
  iio: gyro: bmg160: Send x, y and z motion separately
  iio: gyro: bmg160: Don't let interrupt mode to be open drain
  iio: gyro: bmg160: Error handling when mode set fails
  iio: adc: men_z188_adc: Add terminating entry for men_z188_ids
  iio: accel: kxcjk-1013: Fix kxcjk10013_set_range
  iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask

9 years agoMerge tag 'tty-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sat, 29 Nov 2014 00:03:24 +0000 (16:03 -0800)]
Merge tag 'tty-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fix from Greg KH:
 "Here is a single revert for the of-serial driver that resolves a
  reported issue.

  This revert has been in linux-next for a while"

* tag 'tty-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "serial: of-serial: add PM suspend/resume support"

9 years agoMerge tag 'usb-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 28 Nov 2014 23:55:14 +0000 (15:55 -0800)]
Merge tag 'usb-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some USB driver fixes and new device ids for 3.18-rc7.

  Full details are in the shortlog, and all of these have been in the
  linux-next tree for a while"

* tag 'usb-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000
  usb: xhci: rework root port wake bits if controller isn't allowed to wakeup
  USB: xhci: Reset a halted endpoint immediately when we encounter a stall.
  Revert "xhci: clear root port wake on bits if controller isn't wake-up capable"
  USB: xhci: don't start a halted endpoint before its new dequeue is set
  USB: uas: Add no-uas quirk for Hitachi usb-3 enclosures 4971:1012
  USB: ssu100: fix overrun-error reporting
  USB: keyspan: fix overrun-error reporting
  USB: keyspan: fix tty line-status reporting
  usb: serial: ftdi_sio: add PIDs for Matrix Orbital products
  usb: dwc3: ep0: fix for dead code
  USB: serial: cp210x: add IDs for CEL MeshConnect USB Stick

9 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
Linus Torvalds [Fri, 28 Nov 2014 22:00:33 +0000 (14:00 -0800)]
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal

Pull thermal fixes from Eduardo Valentin:
 "In this -rc still very minor changes:

   - Lee Jones fixes compilation warning in sti thermal driver
   - Marjus Elfring removes unnecessary checks in exynos thermal driver
     (as per coccinelle)
   - Now we always update cpufreq policies, and thus get (hopefully)
     always in sync with cpufreq, thanks to Yadwinder"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: Exynos: Deletion of unnecessary checks before two function calls
  thermal: sti: Ignore suspend/resume functions when !PM_SLEEP
  thermal: cpu_cooling: Update always cpufreq policy with thermal constraints

9 years agoMerge tag 'sound-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 28 Nov 2014 21:54:53 +0000 (13:54 -0800)]
Merge tag 'sound-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "No excitement, here are only minor fixes: an endian fix for the new
  DSD format we added in 3.18, a fix for HP mute LED, and a fix for
  Native Instrument quirk"

* tag 'sound-3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: pcm: Add big-endian DSD sample formats and fix XMOS DSD sample format
  ALSA: hda - One more HP machine needs to change mute led quirk
  ALSA: usb-audio: Use snd_usb_ctl_msg() for Native Instruments quirk

9 years agoMerge tag 'armsoc-for-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Fri, 28 Nov 2014 21:34:32 +0000 (13:34 -0800)]
Merge tag 'armsoc-for-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Not much interesting going on fixes-wise for us this week, as it
  should be for an -rc7.  I'm not expecting Olof to work much over
  Thanksgiving weekend, so I decided to take over again and push these
  out to you.

  Just four simple fixes this week:

   - one missing of_node_put() on armv7 based mvebu
   - forcing the USB host into the right mode on Chromebook
     (exynos5-snow)
   - enabling two important drivers for exynos_defconfig
   - fixing a noncritical bug for tegra that would cause a regression
     with common code patches queued for 3.19"

* tag 'armsoc-for-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: tegra: irq: fix buggy usage of irq_data irq field
  ARM: exynos_defconfig: Enable max77802 rtc and clock drivers
  ARM: dts: Explicitly set dr_mode on exynos5250-snow
  ARM: mvebu: add missing of_node_put() call in coherency.c

9 years agoMerge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Linus Torvalds [Fri, 28 Nov 2014 21:32:47 +0000 (13:32 -0800)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "Another round of relatively small ARM fixes.

  Thomas spotted that the strex backoff delay bit was a disable bit, so
  it needed to be clear for this to work.  Vladimir spotted that using a
  restart block for the cache flush operation would return -EINTR, which
  userspace was not expecting.  Dmitry spotted that the auxiliary
  control register accesses for Xscale were not correct"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8226/1: cacheflush: get rid of restarting block
  ARM: 8222/1: mvebu: enable strex backoff delay
  ARM: 8216/1: xscale: correct auxiliary register in suspend/resume

9 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Fri, 28 Nov 2014 02:32:49 +0000 (18:32 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull mips fixes from Ralf Baechle:
 "The hopefully final round of fixes for 3.18:

   - Fix a number of build errors affecting particular configurations.
   - Handle EVA correctly when flushing a signal trampoline and dcache
     lines.
   - Fix printks printing jibberish.
   - Handle 64 bit memory addresses correctly when adding memory chunk
     on 32 bit kernels.
   - Fix a race condition in the hardware tablewalker code"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: tlbex: Fix potential HTW race on TLBL/M/S handlers
  MIPS: Fix address type used for early memory detection.
  MIPS: Kconfig: Don't allow both microMIPS and SmartMIPS to be selected.
  MIPS: kernel: cps-vec: Set ISA level to mips32r2 for the MIPS MT ASE
  MIPS: Netlogic: handle modular AHCI builds
  MIPS: Netlogic: handle modular USB case
  MIPS: Loongson: Make platform serial setup always built-in.
  MIPS: fix EVA & non-SMP non-FPU FP context signal handling
  MIPS: cpu-probe: Set the FTLB probability bit on supported cores
  MIPS: BMIPS: Fix ".previous without corresponding .section" warnings
  MIPS: uaccess.h: Fix strnlen_user comment.
  MIPS: r4kcache: Add EVA case for protected_writeback_dcache_line
  MIPS: Fix info about plat_setup in arch_mem_init comment
  MIPS: rtlx: Remove KERN_DEBUG from pr_debug() arguments in rtlx.c
  MIPS: SEAD3: Fix LED device registration.
  MIPS: Fix a copy & paste error in unistd.h

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux
Linus Torvalds [Fri, 28 Nov 2014 02:23:41 +0000 (18:23 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc fixes from Michael Ellerman:
 "Here are five fixes for you to pull please.

  They're all CC'ed to stable except the "Fix PE state format" one which
  went in this release"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
  powerpc: 32 bit getcpu VDSO function uses 64 bit instructions
  powerpc/powernv: Replace OPAL_DEASSERT_RESET with EEH_RESET_DEACTIVATE
  powerpc/eeh: Fix PE state format
  powerpc/pseries: Fix endiannes issue in RTAS call from xmon
  powerpc/powernv: Fix the hmi event version check.

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Fri, 28 Nov 2014 02:19:25 +0000 (18:19 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

Pull sparc fixlet from David Miller:
 "Aparc fix to add dma_cache_sync(), even if a nop it should be provided
  if dma_{alloc,free}_noncoherent() is provided too"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Add NOP dma_cache_sync() implementation.

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 28 Nov 2014 02:05:05 +0000 (18:05 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:
 "Several small fixes here:

   1) Don't crash in tg3 driver when the number of tx queues has been
      configured to be different from the number of rx queues.  From
      Thadeu Lima de Souza Cascardo.

   2) VLAN filter not disabled properly in promisc mode in ixgbe driver,
      from Vlad Yasevich.

   3) Fix OOPS on dellink op in VTI tunnel driver, from Xin Long.

   4) IPV6 GRE driver WCCP code checks skb->protocol for ETH_P_IP
      instead of ETH_P_IPV6, whoops.  From Yuri Chislov.

   5) Socket matching in ping driver is buggy when packet AF does not
      match socket's AF.  Fix from Jane Zhou.

   6) Fix checksum calculation errors in VXLAN due to where the
      udp_tunnel6_xmit_skb() helper gets it's saddr/daddr from.  From
      Alexander Duyck.

   7) Fix 5G detection problem in rtlwifi driver, from Larry Finger.

   8) Fix NULL deref in tcp_v{4,6}_send_reset, from Eric Dumazet.

   9) Various missing netlink attribute verifications in bridging code,
      from Thomas Graf.

  10) tcp_recvmsg() unconditionally calls ipv4 ip_recv_error even for
      ipv6 sockets, whoops.  Fix from Willem de Bruijn"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits)
  net-timestamp: make tcp_recvmsg call ipv6_recv_error for AF_INET6 socks
  bridge: Sanitize IFLA_EXT_MASK for AF_BRIDGE:RTM_GETLINK
  bridge: Add missing policy entry for IFLA_BRPORT_FAST_LEAVE
  net: Check for presence of IFLA_AF_SPEC
  net: Validate IFLA_BRIDGE_MODE attribute length
  bridge: Validate IFLA_BRIDGE_FLAGS attribute length
  stmmac: platform: fix default values of the filter bins setting
  net/mlx4_core: Limit count field to 24 bits in qp_alloc_res
  net: dsa: bcm_sf2: reset switch prior to initialization
  net: dsa: bcm_sf2: fix unmapping registers in case of errors
  tg3: fix ring init when there are more TX than RX channels
  tcp: fix possible NULL dereference in tcp_vX_send_reset()
  rtlwifi: Change order in device startup
  rtlwifi: rtl8821ae: Fix 5G detection problem
  Revert "netfilter: conntrack: fix race in __nf_conntrack_confirm against get_next_corpse"
  vxlan: Fix boolean flip in VXLAN_F_UDP_ZERO_CSUM6_[TX|RX]
  ip6_udp_tunnel: Fix checksum calculation
  net-timestamp: Fix a documentation typo
  net/ping: handle protocol mismatching scenario
  af_packet: fix sparse warning
  ...

9 years agoMerge tag 'spi-v3.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Linus Torvalds [Fri, 28 Nov 2014 01:55:42 +0000 (17:55 -0800)]
Merge tag 'spi-v3.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "There's a couple of driver fixes here, plus one core fix for the DMA
  mapping which wasn't doing the right thing for vmalloc()ed addresses
  that hadn't been through kmap().  It's fairly rare to use vmalloc()
  with SPI and it's a subset of those users who might fail so it's
  unsurprising that this wasn't noticed sooner"

* tag 'spi-v3.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: sirf: fix word width configuration
  spi: Fix mapping from vmalloc-ed buffer to scatter list
  spi: dw: Fix dynamic speed change.

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Fri, 28 Nov 2014 01:51:50 +0000 (17:51 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input layer fixes from Dmitry Torokhov:
 "The main change is to fix breakage in Elantech driver introduced by
  the recent commit adding trackpoint reporting to protocol v4.  Now we
  are trusting the hardware to advertise the trackpoint properly and do
  not try to decode the data as trackpoint if firmware told us it is not
  present"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: xpad - use proper endpoint type
  Input: elantech - trust firmware about trackpoint presence
  Input: synaptics - adjust min/max on Thinkpad E540

9 years agostaging: r8188eu: Add new device ID for DLink GO-USB-N150
Larry Finger [Thu, 27 Nov 2014 16:10:21 +0000 (10:10 -0600)]
staging: r8188eu: Add new device ID for DLink GO-USB-N150

The DLink GO-USB-N150 with revision B1 uses this driver.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoMIPS: tlbex: Fix potential HTW race on TLBL/M/S handlers
Leonid Yegoshin [Thu, 27 Nov 2014 11:13:08 +0000 (11:13 +0000)]
MIPS: tlbex: Fix potential HTW race on TLBL/M/S handlers

There is a potential race when probing the TLB in TLBL/M/S exception
handlers for a matching entry. Between the time we hit a TLBL/S/M
exception and the time we get to execute the TLBP instruction, the
HTW may have replaced the TLB entry we are interested in hence the TLB
probe may fail. However, in the existing handlers, we never checked the
status of the TLBP (ie check the result in the C0/Index register). We
fix this by adding such a check when the core implements the HTW. If
we couldn't find a matching entry, we return back and try again.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: <stable@vger.kernel.org> # v3.17+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8599/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoARM: 8226/1: cacheflush: get rid of restarting block
Vladimir Murzin [Thu, 27 Nov 2014 10:39:04 +0000 (11:39 +0100)]
ARM: 8226/1: cacheflush: get rid of restarting block

We cannot restart cacheflush safely if a process provides user-defined
signal handler and signal is pending. In this case -EINTR is returned
and it is expected that process re-invokes syscall. However, there are
a few problems with that:
 * looks like nobody bothers checking return value from cacheflush
 * but if it did, we don't provide the restart address for that, so the
   process has to use the same range again
 * ...and again, what might lead to looping forever

So, remove cacheflush restarting code and terminate cache flushing
as early as fatal signal is pending.

Cc: stable@vger.kernel.org # 3.12+
Reported-by: Chanho Min <chanho.min@lge.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
9 years agoARM: 8222/1: mvebu: enable strex backoff delay
Thomas Petazzoni [Tue, 25 Nov 2014 17:43:15 +0000 (18:43 +0100)]
ARM: 8222/1: mvebu: enable strex backoff delay

Under extremely rare conditions, in an MPCore node consisting of at
least 3 CPUs, two CPUs trying to perform a STREX to data on the same
shared cache line can enter a livelock situation.

This patch enables the HW mechanism that overcomes the bug. This fixes
the incorrect setup of the STREX backoff delay bit due to a wrong
description in the specification.

Note that enabling the STREX backoff delay mechanism is done by
leaving the bit *cleared*, while the bit was currently being set by
the proc-v7.S code.

[Thomas: adapt to latest mainline, slightly reword the commit log, add
stable markers.]

Fixes: de4901933f6d ("arm: mm: Add support for PJ4B cpu and init routines")
Cc: <stable@vger.kernel.org> # v3.8+
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
9 years agoMerge tag 'mvebu-fixes-3.18-2' of git://git.infradead.org/linux-mvebu into fixes
Arnd Bergmann [Thu, 27 Nov 2014 13:29:23 +0000 (14:29 +0100)]
Merge tag 'mvebu-fixes-3.18-2' of git://git.infradead.org/linux-mvebu into fixes

Pull "mvebu fixes for v3.18 (round 2)" frm Jason Cooper:

 - mvebu
    - coherency.c needed an of_node_put()

* tag 'mvebu-fixes-3.18-2' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: add missing of_node_put() call in coherency.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
9 years agoMerge tag 'samsung-defconfig-v3.18' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Thu, 27 Nov 2014 13:26:52 +0000 (14:26 +0100)]
Merge tag 'samsung-defconfig-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes

Pull "Samsung defconfig update for v3.18" from Kukjin Kim:

- enable max77802 rtc and clock drivers for exynos_defconfig
  : enable the kernel config options to have the drivers for
    max77802 including rtc and 2-ch 32kHz clock outputs

* tag 'samsung-defconfig-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: exynos_defconfig: Enable max77802 rtc and clock drivers

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
9 years agoMerge tag 'samsung-fixes-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Thu, 27 Nov 2014 13:24:41 +0000 (14:24 +0100)]
Merge tag 'samsung-fixes-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes

Pull "Samsung fixes for v3.18" from Kukjin Kim:

- explicitly set dr_mode on exynos5250-snow
  this is required when kernel is built with USB gadget support.

* tag 'samsung-fixes-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: dts: Explicitly set dr_mode on exynos5250-snow

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
9 years agoARM: tegra: irq: fix buggy usage of irq_data irq field
Marc Zyngier [Wed, 26 Nov 2014 17:55:31 +0000 (17:55 +0000)]
ARM: tegra: irq: fix buggy usage of irq_data irq field

The crazy gic_arch_extn thing that Tegra uses contains multiple
references to the irq field in struct irq_data, and uses this
to directly poke hardware register.

But irq is the *virtual* irq number, something that has nothing
to do with the actual HW irq (stored in the hwirq field). And once
we put the stacked domain code in action, the whole thing explodes,
as these two values are *very* different:

root@bacon-fat:~# cat /proc/interrupts
            CPU0       CPU1
 16:      25801       2075       GIC  29  twd
 17:          0          0       GIC  73  timer0
112:          0          0      GPIO  58  c8000600.sdhci cd
123:          0          0      GPIO  69  c8000200.sdhci cd
279:       1126          0       GIC 122  serial
281:          0          0       GIC  70  7000c000.i2c
282:          0          0       GIC 116  7000c400.i2c
283:          0          0       GIC 124  7000c500.i2c
284:        300          0       GIC  85  7000d000.i2c
[...]

Just replacing all instances of irq with hwirq fixes the issue.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
9 years agopowerpc: 32 bit getcpu VDSO function uses 64 bit instructions
Anton Blanchard [Wed, 26 Nov 2014 21:11:28 +0000 (08:11 +1100)]
powerpc: 32 bit getcpu VDSO function uses 64 bit instructions

I used some 64 bit instructions when adding the 32 bit getcpu VDSO
function. Fix it.

Fixes: 18ad51dd342a ("powerpc: Add VDSO version of getcpu")
Cc: stable@vger.kernel.org
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
9 years agopowerpc/powernv: Replace OPAL_DEASSERT_RESET with EEH_RESET_DEACTIVATE
Gavin Shan [Mon, 24 Nov 2014 22:26:59 +0000 (09:26 +1100)]
powerpc/powernv: Replace OPAL_DEASSERT_RESET with EEH_RESET_DEACTIVATE

The flag passed to ioda_eeh_phb_reset() should be EEH_RESET_DEACTIVATE,
which is translated to OPAL_DEASSERT_RESET or something else by the
EEH backend accordingly.

The patch replaces OPAL_DEASSERT_RESET with EEH_RESET_DEACTIVATE for
ioda_eeh_phb_reset().

Cc: stable@vger.kernel.org
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
9 years agopowerpc/eeh: Fix PE state format
Gavin Shan [Mon, 24 Nov 2014 22:26:58 +0000 (09:26 +1100)]
powerpc/eeh: Fix PE state format

Obviously I had wrong format given to the PE state output from
/sys/bus/pci/devices/xxxx/eeh_pe_state with some typoes, which
was introduced by commit 2013add4ce73. The patch fixes it up.

Fixes: 2013add4ce73 ("powerpc/eeh: Show hex prefix for PE state sysfs")
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
9 years agopowerpc/pseries: Fix endiannes issue in RTAS call from xmon
Laurent Dufour [Mon, 24 Nov 2014 14:07:53 +0000 (15:07 +0100)]
powerpc/pseries: Fix endiannes issue in RTAS call from xmon

On pseries system (LPAR) xmon failed to enter when running in LE mode,
system is hunging. Inititating xmon will lead to such an output on the
console:

SysRq : Entering xmon
cpu 0x15: Vector: 0  at [c0000003f39ffb10]
    pc: c00000000007ed7c: sysrq_handle_xmon+0x5c/0x70
    lr: c00000000007ed7c: sysrq_handle_xmon+0x5c/0x70
    sp: c0000003f39ffc70
   msr: 8000000000009033
  current = 0xc0000003fafa7180
  paca    = 0xc000000007d75e80  softe: 0  irq_happened: 0x01
    pid   = 14617, comm = bash
Bad kernel stack pointer fafb4b0 at eca7cc4
cpu 0x15: Vector: 300 (Data Access) at [c000000007f07d40]
    pc: 000000000eca7cc4
    lr: 000000000eca7c44
    sp: fafb4b0
   msr: 8000000000001000
   dar: 10000000
 dsisr: 42000000
  current = 0xc0000003fafa7180
  paca    = 0xc000000007d75e80  softe: 0  irq_happened: 0x01
    pid   = 14617, comm = bash
cpu 0x15: Exception 300 (Data Access) in xmon, returning to main loop
xmon: WARNING: bad recursive fault on cpu 0x15

The root cause is that xmon is calling RTAS to turn off the surveillance
when entering xmon, and RTAS is requiring big endian parameters.

This patch is byte swapping the RTAS arguments when running in LE mode.

Cc: stable@vger.kernel.org
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
9 years agopowerpc/powernv: Fix the hmi event version check.
Mahesh Salgaonkar [Thu, 20 Nov 2014 04:14:36 +0000 (09:44 +0530)]
powerpc/powernv: Fix the hmi event version check.

The current HMI event structure is an ABI and carries a version field to
accommodate future changes without affecting/rearranging current structure
members that are valid for previous versions.

The current version check "if (hmi_evt->version != OpalHMIEvt_V1)"
doesn't accomodate the fact that the version number may change in
future.

If firmware starts returning an HMI event with version > 1, this check
will fail and no HMI information will be printed on older kernels.

This patch fixes this issue.

Cc: stable@vger.kernel.org # 3.17+
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
[mpe: Reword changelog]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
9 years agostaging: r8188eu: Fix scheduling while atomic error introduced in commit fadbe0cd
Larry Finger [Wed, 12 Nov 2014 16:07:49 +0000 (10:07 -0600)]
staging: r8188eu: Fix scheduling while atomic error introduced in commit fadbe0cd

In commit fadbe0cd5292851608e2e01b91d9295fa287b9fe entitled "staging:
rtl8188eu:Remove rtw_zmalloc(), wrapper for kzalloc()", the author failed
to note that the original code in the wrapper tested whether the caller
could sleep, and set the flags argument to kzalloc() appropriately.
After the patch, GFP_KERNEL is used unconditionally. Unfortunately, several
of the routines may be entered from an interrupt routine and generate
a BUG splat for every such call. Routine rtw_sitesurvey_cmd() is used in the
example below:

BUG: sleeping function called from invalid context at mm/slub.c:1240
in_atomic(): 1, irqs_disabled(): 0, pid: 756, name: wpa_supplicant
INFO: lockdep is turned off.
CPU: 2 PID: 756 Comm: wpa_supplicant Tainted: G        WC O   3.18.0-rc4+ #34
Hardware name: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS Version 4.20   04/17/2014
ffffc90005557000 ffff880216fafaa8 ffffffff816b0bbf 0000000000000000
ffff8800c3b58000 ffff880216fafac8 ffffffff8107af77 0000000000000001
0000000000000010 ffff880216fafb18 ffffffff811b06ce 0000000000000000
Call Trace:
 [<ffffffff816b0bbf>] dump_stack+0x4e/0x71
 [<ffffffff8107af77>] __might_sleep+0xf7/0x120
 [<ffffffff811b06ce>] kmem_cache_alloc_trace+0x4e/0x1f0
 [<ffffffffa0888226>] ? rtw_sitesurvey_cmd+0x56/0x2a0 [r8188eu]
 [<ffffffffa0888226>] rtw_sitesurvey_cmd+0x56/0x2a0 [r8188eu]
 [<ffffffffa088f00d>] rtw_do_join+0x22d/0x370 [r8188eu]
 [<ffffffffa088f6e8>] rtw_set_802_11_ssid+0x218/0x3d0 [r8188eu]
 [<ffffffffa08c3ca5>] rtw_wx_set_essid+0x1e5/0x410 [r8188eu]
 [<ffffffffa08c3ac0>] ? rtw_wx_get_rate+0x50/0x50 [r8188eu]
 [<ffffffff816938f1>] ioctl_standard_iw_point+0x151/0x3f0
 [<ffffffff81693d52>] ioctl_standard_call+0xb2/0xe0
 [<ffffffff81597df7>] ? rtnl_lock+0x17/0x20
 [<ffffffff816945a0>] ? iw_handler_get_private+0x70/0x70
 [<ffffffff81693ca0>] ? call_commit_handler+0x40/0x40
 [<ffffffff81693256>] wireless_process_ioctl+0x176/0x1c0
 [<ffffffff81693e79>] wext_handle_ioctl+0x69/0xc0
 [<ffffffff8159fe79>] dev_ioctl+0x309/0x5e0
 [<ffffffff810be9c7>] ? call_rcu+0x17/0x20
 [<ffffffff8156a472>] sock_ioctl+0x142/0x2e0
 [<ffffffff811e0c70>] do_vfs_ioctl+0x300/0x520
 [<ffffffff81101514>] ? __audit_syscall_entry+0xb4/0x110
 [<ffffffff81101514>] ? __audit_syscall_entry+0xb4/0x110
 [<ffffffff810102bc>] ? do_audit_syscall_entry+0x6c/0x70
 [<ffffffff811e0f11>] SyS_ioctl+0x81/0xa0
 [<ffffffff816ba1d2>] system_call_fastpath+0x12/0x17

Additional routines that generate this BUG are rtw_joinbss_cmd(),
rtw_dynamic_chk_wk_cmd(), rtw_lps_ctrl_wk_cmd(), rtw_rpt_timer_cfg_cmd(),
rtw_ps_cmd(), report_survey_event(), report_join_res(), survey_timer_hdl(),
and rtw_check_bcn_info().

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: navin patidar <navin.patidar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoMerge tag 'master-2014-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/linvil...
David S. Miller [Wed, 26 Nov 2014 21:38:35 +0000 (16:38 -0500)]
Merge tag 'master-2014-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

John W. Linville says:

====================
pull request: wireless 2014-11-26

Please pull this little batch of fixes intended for the 3.18 stream...

For the iwlwifi one, Emmanuel says:

"Not all the firmware know how to handle the HOT_SPOT_CMD.
Make sure that the firmware will know this command before
sending it. This avoids a firmware crash."

Along with that, Larry sends a pair of rtlwifi fixes to address some
discrepancies from moving drivers out of staging.  Larry says:

"These two patches are needed to fix a regression introduced when
driver rtl8821ae was moved from staging to the regular wireless tree."

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agosparc: Add NOP dma_cache_sync() implementation.
David S. Miller [Wed, 26 Nov 2014 21:36:41 +0000 (13:36 -0800)]
sparc: Add NOP dma_cache_sync() implementation.

This can be a NOP because we forward dma_{alloc,free}_noncoherent to
dma_{alloc,free}_coherent.

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet-timestamp: make tcp_recvmsg call ipv6_recv_error for AF_INET6 socks
Willem de Bruijn [Wed, 26 Nov 2014 19:53:02 +0000 (14:53 -0500)]
net-timestamp: make tcp_recvmsg call ipv6_recv_error for AF_INET6 socks

TCP timestamping introduced MSG_ERRQUEUE handling for TCP sockets.
If the socket is of family AF_INET6, call ipv6_recv_error instead
of ip_recv_error.

This change is more complex than a single branch due to the loadable
ipv6 module. It reuses a pre-existing indirect function call from
ping. The ping code is safe to call, because it is part of the core
ipv6 module and always present when AF_INET6 sockets are active.

Fixes: 4ed2d765 (net-timestamp: TCP timestamping)
Signed-off-by: Willem de Bruijn <willemb@google.com>
----

It may also be worthwhile to add WARN_ON_ONCE(sk->family == AF_INET6)
to ip_recv_error.
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'bridge_nl_validation'
David S. Miller [Wed, 26 Nov 2014 20:29:10 +0000 (15:29 -0500)]
Merge branch 'bridge_nl_validation'

Thomas Graf says:

====================
bridge: Fix missing Netlink message validations

Adds various missing length checks in the bridging code for Netlink
messages and corresponding attributes provided by user space.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agobridge: Sanitize IFLA_EXT_MASK for AF_BRIDGE:RTM_GETLINK
Thomas Graf [Wed, 26 Nov 2014 12:42:20 +0000 (13:42 +0100)]
bridge: Sanitize IFLA_EXT_MASK for AF_BRIDGE:RTM_GETLINK

Only search for IFLA_EXT_MASK if the message actually carries a
ifinfomsg header and validate minimal length requirements for
IFLA_EXT_MASK.

Fixes: 6cbdceeb ("bridge: Dump vlan information from a bridge port")
Cc: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agobridge: Add missing policy entry for IFLA_BRPORT_FAST_LEAVE
Thomas Graf [Wed, 26 Nov 2014 12:42:19 +0000 (13:42 +0100)]
bridge: Add missing policy entry for IFLA_BRPORT_FAST_LEAVE

Fixes: c2d3babf ("bridge: implement multicast fast leave")
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: Check for presence of IFLA_AF_SPEC
Thomas Graf [Wed, 26 Nov 2014 12:42:18 +0000 (13:42 +0100)]
net: Check for presence of IFLA_AF_SPEC

ndo_bridge_setlink() is currently only called on the slave if
IFLA_AF_SPEC is set but this is a very fragile assumption and may
change in the future.

Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: Validate IFLA_BRIDGE_MODE attribute length
Thomas Graf [Wed, 26 Nov 2014 12:42:17 +0000 (13:42 +0100)]
net: Validate IFLA_BRIDGE_MODE attribute length

Payload is currently accessed blindly and may exceed valid message
boundaries.

Fixes: a77dcb8c8 ("be2net: set and query VEB/VEPA mode of the PF interface")
Fixes: 815cccbf1 ("ixgbe: add setlink, getlink support to ixgbe and ixgbevf")
Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agobridge: Validate IFLA_BRIDGE_FLAGS attribute length
Thomas Graf [Wed, 26 Nov 2014 12:42:16 +0000 (13:42 +0100)]
bridge: Validate IFLA_BRIDGE_FLAGS attribute length

Payload is currently accessed blindly and may exceed valid message
boundaries.

Fixes: 407af3299 ("bridge: Add netlink interface to configure vlans on bridge ports")
Cc: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Wed, 26 Nov 2014 19:16:44 +0000 (11:16 -0800)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Last minute KVM/ARM fixes; even the generic change actually affects
  nothing but ARM"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: fix kvm_is_mmio_pfn() and rename to kvm_is_reserved_pfn()
  arm/arm64: kvm: drop inappropriate use of kvm_is_mmio_pfn()
  arm/arm64: KVM: vgic: Fix error code in kvm_vgic_create()
  arm64: KVM: Handle traps of ICC_SRE_EL1 as RAZ/WI
  arm64: KVM: fix unmapping with 48-bit VAs

9 years agoMerge tag 'iio-fixes-for-3.18c' of git://git.kernel.org/pub/scm/linux/kernel/git...
Greg Kroah-Hartman [Wed, 26 Nov 2014 19:06:36 +0000 (11:06 -0800)]
Merge tag 'iio-fixes-for-3.18c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Third set of IIO fixes for the 3.18 cycle.

Most of these are fairly standard little fixes, a bmc150 and bmg160 patch
is to make an ABI change to indicated a specific axis in an event rather
than the generic option in the original drivers.  As both of these drivers
are new in this cycle it would be ideal to push this minor change through
even though it isn't strictly a fix.  A couple of other 'fixes' change
defaults for some settings on these new drivers to more intuitive calues.
Looks like some useful feedback has been coming in for this driver
since it was applied.

* IIO_EVENT_CODE_EXTRACT_DIR bit mask was wrong and has been for a while
  0xCF clearly doesn't give a contiguous bitmask.
* kxcjk-1013 range setting was failing to mask out the previous value
  in the register and hence was 'enable only'.
* men_z188 device id table wasn't null terminated.
* bmg160 and bmc150 both failed to correctly handling an error in mode
  setting.
* bmg160 and bmc150 both had a bug in setting the event direction in the
  event spec (leads to an attribute name being incorrect)
* bmg160 defaulted to an open drain output for the interrupt - as a default
  this obviously only works with some interrupt chips - hence change the
  default to push-pull (note this is a new driver so we aren't going to
  cause any regressions with this change).
* bmc150 had an unintuitive default for the rate of change (motion detector)
  so change it to 0 (new driver so change of default won't cause any
  regressions).

9 years agoMerge remote-tracking branches 'spi/fix/dw' and 'spi/fix/sirf' into spi-linus
Mark Brown [Wed, 26 Nov 2014 19:05:25 +0000 (19:05 +0000)]
Merge remote-tracking branches 'spi/fix/dw' and 'spi/fix/sirf' into spi-linus

9 years agoMerge remote-tracking branch 'spi/fix/dma' into spi-linus
Mark Brown [Wed, 26 Nov 2014 19:05:25 +0000 (19:05 +0000)]
Merge remote-tracking branch 'spi/fix/dma' into spi-linus

9 years agostmmac: platform: fix default values of the filter bins setting
Huacai Chen [Wed, 26 Nov 2014 02:38:06 +0000 (10:38 +0800)]
stmmac: platform: fix default values of the filter bins setting

The commit 3b57de958e2a brought the support for a different amount of
the filter bins, but didn't update the platform driver that without
CONFIG_OF.

Fixes: 3b57de958e2a (net: stmmac: Support devicetree configs for mcast
and ucast filter entries)

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx4_core: Limit count field to 24 bits in qp_alloc_res
Jack Morgenstein [Tue, 25 Nov 2014 09:54:31 +0000 (11:54 +0200)]
net/mlx4_core: Limit count field to 24 bits in qp_alloc_res

Some VF drivers use the upper byte of "param1" (the qp count field)
in mlx4_qp_reserve_range() to pass flags which are used to optimize
the range allocation.

Under the current code, if any of these flags are set, the 32-bit
count field yields a count greater than 2^24, which is out of range,
and this VF fails.

As these flags represent a "best-effort" allocation hint anyway, they may
safely be ignored. Therefore, the PF driver may simply mask out the bits.

Fixes: c82e9aa0a8 "mlx4_core: resource tracking for HCA resources used by guests"
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'bcm_sf2'
David S. Miller [Wed, 26 Nov 2014 17:04:14 +0000 (12:04 -0500)]
Merge branch 'bcm_sf2'

Florian Fainelli says:

====================
net: dsa: bcm_sf2: misc bugfixes

This patch series contains two bug fixes:

- first patch fixes an issue on the error path of the driver where we could
  have left some of our registers mapped

- second patch enforces the use of a software reset of the switch to guarantee
  the HW is in a consistent state prior to software initialization
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: dsa: bcm_sf2: reset switch prior to initialization
Florian Fainelli [Wed, 26 Nov 2014 02:08:49 +0000 (18:08 -0800)]
net: dsa: bcm_sf2: reset switch prior to initialization

Our boot agent may have left the switch in an certain configuration
state, make sure we issue a software reset prior to configuring the
switch in order to ensure the HW is in a consistent state, in particular
transmit queues and internal buffers.

Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: dsa: bcm_sf2: fix unmapping registers in case of errors
Florian Fainelli [Wed, 26 Nov 2014 02:08:48 +0000 (18:08 -0800)]
net: dsa: bcm_sf2: fix unmapping registers in case of errors

In case we fail to ioremap() one of our registers, we would be leaking
existing mappings, unwind those accordingly on errors.

Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agokvm: fix kvm_is_mmio_pfn() and rename to kvm_is_reserved_pfn()
Ard Biesheuvel [Mon, 10 Nov 2014 08:33:56 +0000 (09:33 +0100)]
kvm: fix kvm_is_mmio_pfn() and rename to kvm_is_reserved_pfn()

This reverts commit 85c8555ff0 ("KVM: check for !is_zero_pfn() in
kvm_is_mmio_pfn()") and renames the function to kvm_is_reserved_pfn.

The problem being addressed by the patch above was that some ARM code
based the memory mapping attributes of a pfn on the return value of
kvm_is_mmio_pfn(), whose name indeed suggests that such pfns should
be mapped as device memory.

However, kvm_is_mmio_pfn() doesn't do quite what it says on the tin,
and the existing non-ARM users were already using it in a way which
suggests that its name should probably have been 'kvm_is_reserved_pfn'
from the beginning, e.g., whether or not to call get_page/put_page on
it etc. This means that returning false for the zero page is a mistake
and the patch above should be reverted.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoarm/arm64: kvm: drop inappropriate use of kvm_is_mmio_pfn()
Ard Biesheuvel [Mon, 10 Nov 2014 08:33:55 +0000 (09:33 +0100)]
arm/arm64: kvm: drop inappropriate use of kvm_is_mmio_pfn()

Instead of using kvm_is_mmio_pfn() to decide whether a host region
should be stage 2 mapped with device attributes, add a new static
function kvm_is_device_pfn() that disregards RAM pages with the
reserved bit set, as those should usually not be mapped as device
memory.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoarm/arm64: KVM: vgic: Fix error code in kvm_vgic_create()
Christoffer Dall [Thu, 6 Nov 2014 11:47:39 +0000 (11:47 +0000)]
arm/arm64: KVM: vgic: Fix error code in kvm_vgic_create()

If we detect another vCPU is running we just exit and return 0 as if we
succesfully created the VGIC, but the VGIC wouldn't actual be created.

This shouldn't break in-kernel behavior because the kernel will not
observe the failed the attempt to create the VGIC, but userspace could
be rightfully confused.

Cc: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoarm64: KVM: Handle traps of ICC_SRE_EL1 as RAZ/WI
Christoffer Dall [Wed, 19 Nov 2014 11:23:54 +0000 (11:23 +0000)]
arm64: KVM: Handle traps of ICC_SRE_EL1 as RAZ/WI

When running on a system with a GICv3, we currenly don't allow the guest
to access the system register interface of the GICv3.  We do this by
clearing the ICC_SRE_EL2.Enable, which causes all guest accesses to
ICC_SRE_EL1 to trap to EL2 and causes all guest accesses to other ICC_
registers to cause an undefined exception in the guest.

However, we currently don't handle the trap of guest accesses to
ICC_SRE_EL1 and will spill out a warning.  The trap just needs to handle
the access as RAZ/WI, and a guest that tries to prod this register and
set ICC_SRE_EL1.SRE=1, must read back the value (which Linux already
does) to see if it succeeded, and will thus observe that ICC_SRE_EL1.SRE
was not set.

Add the simple trap handler in the sorted table of the system registers.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
[ardb: added cp15 handling]
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoarm64: KVM: fix unmapping with 48-bit VAs
Mark Rutland [Tue, 28 Oct 2014 19:36:45 +0000 (19:36 +0000)]
arm64: KVM: fix unmapping with 48-bit VAs

Currently if using a 48-bit VA, tearing down the hyp page tables (which
can happen in the absence of a GICH or GICV resource) results in the
rather nasty splat below, evidently becasue we access a table that
doesn't actually exist.

Commit 38f791a4e499792e (arm64: KVM: Implement 48 VA support for KVM EL2
and Stage-2) added a pgd_none check to __create_hyp_mappings to account
for the additional level of tables, but didn't add a corresponding check
to unmap_range, and this seems to be the source of the problem.

This patch adds the missing pgd_none check, ensuring we don't try to
access tables that don't exist.

Original splat below:

kvm [1]: Using HYP init bounce page @83fe94a000
kvm [1]: Cannot obtain GICH resource
Unable to handle kernel paging request at virtual address ffff7f7fff000000
pgd = ffff800000770000
[ffff7f7fff000000] *pgd=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.18.0-rc2+ #89
task: ffff8003eb500000 ti: ffff8003eb45c000 task.ti: ffff8003eb45c000
PC is at unmap_range+0x120/0x580
LR is at free_hyp_pgds+0xac/0xe4
pc : [<ffff80000009b768>] lr : [<ffff80000009cad8>] pstate: 80000045
sp : ffff8003eb45fbf0
x29: ffff8003eb45fbf0 x28: ffff800000736000
x27: ffff800000735000 x26: ffff7f7fff000000
x25: 0000000040000000 x24: ffff8000006f5000
x23: 0000000000000000 x22: 0000007fffffffff
x21: 0000800000000000 x20: 0000008000000000
x19: 0000000000000000 x18: ffff800000648000
x17: ffff800000537228 x16: 0000000000000000
x15: 000000000000001f x14: 0000000000000000
x13: 0000000000000001 x12: 0000000000000020
x11: 0000000000000062 x10: 0000000000000006
x9 : 0000000000000000 x8 : 0000000000000063
x7 : 0000000000000018 x6 : 00000003ff000000
x5 : ffff800000744188 x4 : 0000000000000001
x3 : 0000000040000000 x2 : ffff800000000000
x1 : 0000007fffffffff x0 : 000000003fffffff

Process swapper/0 (pid: 1, stack limit = 0xffff8003eb45c058)
Stack: (0xffff8003eb45fbf0 to 0xffff8003eb460000)
fbe0:                                     eb45fcb0 ffff8003 0009cad8 ffff8000
fc00: 00000000 00000080 00736140 ffff8000 00736000 ffff8000 00000000 00007c80
fc20: 00000000 00000080 006f5000 ffff8000 00000000 00000080 00743000 ffff8000
fc40: 00735000 ffff8000 006d3030 ffff8000 006fe7b8 ffff8000 00000000 00000080
fc60: ffffffff 0000007f fdac1000 ffff8003 fd94b000 ffff8003 fda47000 ffff8003
fc80: 00502b40 ffff8000 ff000000 ffff7f7f fdec6000 00008003 fdac1630 ffff8003
fca0: eb45fcb0 ffff8003 ffffffff 0000007f eb45fd00 ffff8003 0009b378 ffff8000
fcc0: ffffffea 00000000 006fe000 ffff8000 00736728 ffff8000 00736120 ffff8000
fce0: 00000040 00000000 00743000 ffff8000 006fe7b8 ffff8000 0050cd48 00000000
fd00: eb45fd60 ffff8003 00096070 ffff8000 006f06e0 ffff8000 006f06e0 ffff8000
fd20: fd948b40 ffff8003 0009a320 ffff8000 00000000 00000000 00000000 00000000
fd40: 00000ae0 00000000 006aa25c ffff8000 eb45fd60 ffff8003 0017ca44 00000002
fd60: eb45fdc0 ffff8003 0009a33c ffff8000 006f06e0 ffff8000 006f06e0 ffff8000
fd80: fd948b40 ffff8003 0009a320 ffff8000 00000000 00000000 00735000 ffff8000
fda0: 006d3090 ffff8000 006aa25c ffff8000 00735000 ffff8000 006d3030 ffff8000
fdc0: eb45fdd0 ffff8003 000814c0 ffff8000 eb45fe50 ffff8003 006aaac4 ffff8000
fde0: 006ddd90 ffff8000 00000006 00000000 006d3000 ffff8000 00000095 00000000
fe00: 006a1e90 ffff8000 00735000 ffff8000 006d3000 ffff8000 006aa25c ffff8000
fe20: 00735000 ffff8000 006d3030 ffff8000 eb45fe50 ffff8003 006fac68 ffff8000
fe40: 00000006 00000006 fe293ee6 ffff8003 eb45feb0 ffff8003 004f8ee8 ffff8000
fe60: 004f8ed4 ffff8000 00735000 ffff8000 00000000 00000000 00000000 00000000
fe80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
fea0: 00000000 00000000 00000000 00000000 00000000 00000000 000843d0 ffff8000
fec0: 004f8ed4 ffff8000 00000000 00000000 00000000 00000000 00000000 00000000
fee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ff00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ff20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ff40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ff60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ff80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffa0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000005 00000000
ffe0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Call trace:
[<ffff80000009b768>] unmap_range+0x120/0x580
[<ffff80000009cad4>] free_hyp_pgds+0xa8/0xe4
[<ffff80000009b374>] kvm_arch_init+0x268/0x44c
[<ffff80000009606c>] kvm_init+0x24/0x260
[<ffff80000009a338>] arm_init+0x18/0x24
[<ffff8000000814bc>] do_one_initcall+0x88/0x1a0
[<ffff8000006aaac0>] kernel_init_freeable+0x148/0x1e8
[<ffff8000004f8ee4>] kernel_init+0x10/0xd4
Code: 8b000263 92628479 d1000720 eb01001f (f9400340)
---[ end trace 3bc230562e926fa4 ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jungseok Lee <jungseoklee85@gmail.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 years agoMerge branch 'for-3.18' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Wed, 26 Nov 2014 03:05:41 +0000 (19:05 -0800)]
Merge branch 'for-3.18' of git://linux-nfs.org/~bfields/linux

Pull nfsd bugfixes from Bruce Fields:
 "These fix one mishandling of the case when security labels are
  configured out, and two races in the 4.1 backchannel code"

* 'for-3.18' of git://linux-nfs.org/~bfields/linux:
  nfsd: Fix slot wake up race in the nfsv4.1 callback code
  SUNRPC: Fix locking around callback channel reply receive
  nfsd: correctly define v4.2 support attributes

9 years agoMerge git://git.kvack.org/~bcrl/aio-fixes
Linus Torvalds [Wed, 26 Nov 2014 02:55:44 +0000 (18:55 -0800)]
Merge git://git.kvack.org/~bcrl/aio-fixes

Pull aio fix from Ben LaHaise:
 "Dirty page accounting fix for aio"

* git://git.kvack.org/~bcrl/aio-fixes:
  aio: fix uncorrent dirty pages accouting when truncating AIO ring buffer

9 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Wed, 26 Nov 2014 02:43:21 +0000 (18:43 -0800)]
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Pull powerpc fixes from Ben Herrenschmidt:
 "This series fix a nasty issue with radeon adapters on powerpc servers,
  it's all CC'ed stable and has the relevant maintainers ack's/reviews.

  Basically, some (radeon) adapters have issues with MSI addresses above
  1T (only support 40-bits).  We had powerpc specific quirk but it only
  listed a specific revision of an adapter that we shipped with our
  machines and didn't properly handle the audio function which some
  distros enable nowadays.

  So we made the quirk generic and fixed both the graphic and audio
  drivers properly to use it.

  Without that, ppc64 server machines will crash at boot with a radeon
  adapter.

  Note: This has been brewing for a while, it just needed a last respin
  which got delayed due to us moving ozlabs to a new location in town
  and other such things taking priority"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/pci: Remove unused force_32bit_msi quirk
  powerpc/pseries: Honor the generic "no_64bit_msi" flag
  powerpc/powernv: Honor the generic "no_64bit_msi" flag
  sound/radeon: Move 64-bit MSI quirk from arch to driver
  gpu/radeon: Set flag to indicate broken 64-bit MSI
  PCI/MSI: Add device flag indicating that 64-bit MSIs don't work
  ALSA: hda - Limit 40bit DMA for AMD HDMI controllers

9 years agoMerge tag 'hwmon-for-linus-v3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 26 Nov 2014 02:11:15 +0000 (18:11 -0800)]
Merge tag 'hwmon-for-linus-v3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull a hwmon fix from Guenter Roeck:
 "Fix hwmon registration problem in g762 driver"

* tag 'hwmon-for-linus-v3.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (g762) fix call to devm_hwmon_device_register_with_groups()

9 years agoMerge tag 'clk-fixes-for-linus' of https://git.linaro.org/people/mike.turquette/linux
Linus Torvalds [Wed, 26 Nov 2014 01:52:56 +0000 (17:52 -0800)]
Merge tag 'clk-fixes-for-linus' of https://git.linaro.org/people/mike.turquette/linux

Pull clock fixes from Mike Turquette:
 "The fixes for the clock framework are all regressions in drivers, plus
  a single fix in one of the basic clock templates.  No fixes to the
  core this time around.

  As with most clock driver fixes these run the gamut from fixing a
  build warning to fixing wrecked memory timings, with a little USB
  tossed in for fun"

* tag 'clk-fixes-for-linus' of https://git.linaro.org/people/mike.turquette/linux:
  clk: pxa: fix pxa27x CCCR bit usage
  clk-divider: Fix READ_ONLY when divider > 1
  clk: qcom: Fix duplicate rbcpr clock name
  clk: at91: usb: fix at91sam9x5 recalc, round and set rate
  clk: at91: usb: fix at91rm9200 round and set rate

9 years agoRevert "serial: of-serial: add PM suspend/resume support"
Greg Kroah-Hartman [Tue, 25 Nov 2014 20:46:39 +0000 (12:46 -0800)]
Revert "serial: of-serial: add PM suspend/resume support"

This reverts commit 2dea53bf57783f243c892e99c10c6921e956aa7e.

Turns out to be broken :(

Cc: Jingchang Lu <jingchang.lu@freescale.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agotg3: fix ring init when there are more TX than RX channels
Thadeu Lima de Souza Cascardo [Tue, 25 Nov 2014 16:21:11 +0000 (14:21 -0200)]
tg3: fix ring init when there are more TX than RX channels

If TX channels are set to 4 and RX channels are set to less than 4,
using ethtool -L, the driver will try to initialize more RX channels
than it has allocated, causing an oops.

This fix only initializes the RX ring if it has been allocated.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agotcp: fix possible NULL dereference in tcp_vX_send_reset()
Eric Dumazet [Tue, 25 Nov 2014 15:40:04 +0000 (07:40 -0800)]
tcp: fix possible NULL dereference in tcp_vX_send_reset()

After commit ca777eff51f7 ("tcp: remove dst refcount false sharing for
prequeue mode") we have to relax check against skb dst in
tcp_v[46]_send_reset() if prequeue dropped the dst.

If a socket is provided, a full lookup was done to find this socket,
so the dst test can be skipped.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=88191
Reported-by: Jaša Bartelj <jasa.bartelj@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Daniel Borkmann <dborkman@redhat.com>
Fixes: ca777eff51f7 ("tcp: remove dst refcount false sharing for prequeue mode")
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agortlwifi: Change order in device startup
Larry Finger [Tue, 25 Nov 2014 16:32:07 +0000 (10:32 -0600)]
rtlwifi: Change order in device startup

The existing order of steps when starting the PCI devices works for
2.4G devices, but fails to initialize the 5G section of the RTL8821AE
hardware.

This patch is needed to fix the regression reported in Bug #88811
(https://bugzilla.kernel.org/show_bug.cgi?id=88811).

Reported-by: Valerio Passini <valerio.passini@unicam.it>
Tested-by: Valerio Passini <valerio.passini@unicam.it>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Valerio Passini <valerio.passini@unicam.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agortlwifi: rtl8821ae: Fix 5G detection problem
Larry Finger [Tue, 25 Nov 2014 16:32:06 +0000 (10:32 -0600)]
rtlwifi: rtl8821ae: Fix 5G detection problem

The changes associated with moving this driver from staging to the regular
tree missed one section setting the allowable rates for the 5GHz band.

This patch is needed to fix the regression reported in Bug #88811
(https://bugzilla.kernel.org/show_bug.cgi?id=88811).

Reported-by: Valerio Passini <valerio.passini@unicam.it>
Tested-by: Valerio Passini <valerio.passini@unicam.it>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Valerio Passini <valerio.passini@unicam.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoRevert "netfilter: conntrack: fix race in __nf_conntrack_confirm against get_next_corpse"
Pablo Neira [Tue, 25 Nov 2014 18:54:47 +0000 (19:54 +0100)]
Revert "netfilter: conntrack: fix race in __nf_conntrack_confirm against get_next_corpse"

This reverts commit 5195c14c8b27cc0b18220ddbf0e5ad3328a04187.

If the conntrack clashes with an existing one, it is left out of
the unconfirmed list, thus, crashing when dropping the packet and
releasing the conntrack since golden rule is that conntracks are
always placed in any of the existing lists for traceability reasons.

Reported-by: Daniel Borkmann <dborkman@redhat.com>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=88841
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'ipv6_vxlan_outer_udp_csum'
David S. Miller [Tue, 25 Nov 2014 19:12:36 +0000 (14:12 -0500)]
Merge branch 'ipv6_vxlan_outer_udp_csum'

Alexander Duyck says:

====================
Fix outer UDP checksums for IPv6 VXLAN tunnels

In testing against an older kernel I found a couple issues in the IPv6
VXLAN tunnel checksum logic for the outer UDP checksum.

First the default transitioned from using an outer checksum to not using
one.  Second, sometime after that the checksum inputs were changed
resulting the checksum not being correct if it were computed.

These two issues prevented a ping from the newer kernel to the older one.
With these two changes applied I verified I was able to send traffic over
the VXLAN tunnel to a link partner on an older kernel.

The boolean flip fix can be submitted for 3.17 stable as well since the
patch that introduced the issue was included in that kernel.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agovxlan: Fix boolean flip in VXLAN_F_UDP_ZERO_CSUM6_[TX|RX]
Alexander Duyck [Tue, 25 Nov 2014 04:08:38 +0000 (20:08 -0800)]
vxlan: Fix boolean flip in VXLAN_F_UDP_ZERO_CSUM6_[TX|RX]

In "vxlan: Call udp_sock_create" there was a logic error that resulted in
the default for IPv6 VXLAN tunnels going from using checksums to not using
checksums.  Since there is currently no support in iproute2 for setting
these values it means that a kernel after the change cannot talk over a IPv6
VXLAN tunnel to a kernel prior the change.

Fixes: 3ee64f3 ("vxlan: Call udp_sock_create")
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoip6_udp_tunnel: Fix checksum calculation
Alexander Duyck [Tue, 25 Nov 2014 04:08:32 +0000 (20:08 -0800)]
ip6_udp_tunnel: Fix checksum calculation

The UDP checksum calculation for VXLAN tunnels is currently using the
socket addresses instead of the actual packet source and destination
addresses.  As a result the checksum calculated is incorrect in some
cases.

Also uh->check was being set twice, first it was set to 0, and then it is
set again in udp6_set_csum.  This change removes the redundant assignment
to 0.

Fixes: acbf74a7 ("vxlan: Refactor vxlan driver to make use of the common UDP tunnel functions.")
Cc: Andy Zhou <azhou@nicira.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet-timestamp: Fix a documentation typo
Andrew Lutomirski [Mon, 24 Nov 2014 20:02:29 +0000 (12:02 -0800)]
net-timestamp: Fix a documentation typo

SOF_TIMESTAMPING_OPT_ID puts the id in ee_data, not ee_info.

Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoInput: xpad - use proper endpoint type
Greg Kroah-Hartman [Tue, 25 Nov 2014 08:38:17 +0000 (00:38 -0800)]
Input: xpad - use proper endpoint type

The xpad wireless endpoint is not a bulk endpoint on my devices, but
rather an interrupt one, so the USB core complains when it is submitted.
I'm guessing that the author really did mean that this should be an
interrupt urb, but as there are a zillion different xpad devices out
there, let's cover out bases and handle both bulk and interrupt
endpoints just as easily.

Signed-off-by: "Pierre-Loup A. Griffais" <pgriffais@valvesoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agoInput: elantech - trust firmware about trackpoint presence
Dmitry Torokhov [Thu, 20 Nov 2014 07:33:07 +0000 (23:33 -0800)]
Input: elantech - trust firmware about trackpoint presence

Only try to parse data as coming from trackpoint if firmware told us that
trackpoint is present.

Fixes commit caeb0d37fa3e387eb0dd22e5d497523c002033d1

Reported-and-tested-by: Marcus Overhagen <marcus.overhagen@gmail.com>
Reported-and-tested-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
9 years agousb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000
Hans de Goede [Mon, 24 Nov 2014 10:22:38 +0000 (11:22 +0100)]
usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000

This wireless mouse receiver needs a reset-resume quirk to properly come
out of reset.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1165206
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agonet/ping: handle protocol mismatching scenario
Jane Zhou [Mon, 24 Nov 2014 19:44:08 +0000 (11:44 -0800)]
net/ping: handle protocol mismatching scenario

ping_lookup() may return a wrong sock if sk_buff's and sock's protocols
dont' match. For example, sk_buff's protocol is ETH_P_IPV6, but sock's
sk_family is AF_INET, in that case, if sk->sk_bound_dev_if is zero, a wrong
sock will be returned.
the fix is to "continue" the searching, if no matching, return NULL.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Jane Zhou <a17711@motorola.com>
Signed-off-by: Yiwei Zhao <gbjc64@motorola.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoaf_packet: fix sparse warning
Michael S. Tsirkin [Mon, 24 Nov 2014 11:32:16 +0000 (13:32 +0200)]
af_packet: fix sparse warning

af_packet produces lots of these:
net/packet/af_packet.c:384:39: warning: incorrect type in return expression (different modifiers)
net/packet/af_packet.c:384:39:    expected struct page [pure] *
net/packet/af_packet.c:384:39:    got struct page *

this seems to be because sparse does not realize that _pure
refers to function, not the returned pointer.

Tweak code slightly to avoid the warning.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoxen-netback: do not report success if backend_create_xenvif() fails
Alexey Khoroshilov [Mon, 24 Nov 2014 10:58:00 +0000 (13:58 +0300)]
xen-netback: do not report success if backend_create_xenvif() fails

If xenvif_alloc() or xenbus_scanf() fail in backend_create_xenvif(),
xenbus is left in offline mode but netback_probe() reports success.

The patch implements propagation of error code for backend_create_xenvif().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoipv6: gre: fix wrong skb->protocol in WCCP
Yuri Chislov [Mon, 24 Nov 2014 10:25:15 +0000 (11:25 +0100)]
ipv6: gre: fix wrong skb->protocol in WCCP

When using GRE redirection in WCCP, it sets the wrong skb->protocol,
that is, ETH_P_IP instead of ETH_P_IPV6 for the encapuslated traffic.

Fixes: c12b395a4664 ("gre: Support GRE over IPv6")
Cc: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Yuri Chislov <yuri.chislov@gmail.com>
Tested-by: Yuri Chislov <yuri.chislov@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge tag 'iwlwifi-for-john-2014-11-23' of git://git.kernel.org/pub/scm/linux/kernel...
John W. Linville [Mon, 24 Nov 2014 18:53:41 +0000 (13:53 -0500)]
Merge tag 'iwlwifi-for-john-2014-11-23' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

Emmanuel Grumbach <egrumbach@gmail.com> says:

"Not all the firmware know how to handle the HOT_SPOT_CMD.
Make sure that the firmware will know this command before
sending it. This avoids a firmware crash."

Signed-off-by: John W. Linville <linville@tuxdriver.com>
9 years agoMIPS: Fix address type used for early memory detection.
Steven J. Hill [Thu, 13 Nov 2014 15:52:00 +0000 (09:52 -0600)]
MIPS: Fix address type used for early memory detection.

In 'early_parse_mem' the data type used for the start
and size of a memory region specified on the command line
is incorrect. If 64-bit addressing is used, the value
gets truncated.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8456/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoMIPS: Kconfig: Don't allow both microMIPS and SmartMIPS to be selected.
Markos Chandras [Mon, 21 Jul 2014 07:46:14 +0000 (08:46 +0100)]
MIPS: Kconfig: Don't allow both microMIPS and SmartMIPS to be selected.

microMIPS and SmartMIPS can't be used together. This fixes the
following build problem:

Warning: the 32-bit microMIPS architecture does not support the `smartmips' extension
arch/mips/kernel/entry.S:90: Error: unrecognized opcode `mtlhx $24'
[...]
arch/mips/kernel/entry.S:109: Error: unrecognized opcode `mtlhx $24'

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7421/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoMIPS: kernel: cps-vec: Set ISA level to mips32r2 for the MIPS MT ASE
Markos Chandras [Wed, 16 Jul 2014 07:53:39 +0000 (08:53 +0100)]
MIPS: kernel: cps-vec: Set ISA level to mips32r2 for the MIPS MT ASE

Fixes the following build warnings:
arch/mips/kernel/cps-vec.S: Assembler messages:
arch/mips/kernel/cps-vec.S:228: Warning: the `mt' extension requires
MIPS32 revision 2 or greater
[...]
arch/mips/kernel/cps-vec.S: Assembler messages:
arch/mips/kernel/cps-vec.S:345: Warning: the `mt' extension requires
MIPS32 revision 2 or greater

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: Paul Burton <Paul.Burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7355/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoMIPS: Netlogic: handle modular AHCI builds
Florian Fainelli [Wed, 24 Sep 2014 17:55:11 +0000 (10:55 -0700)]
MIPS: Netlogic: handle modular AHCI builds

Commits a951440971d0 ("MIPS: Netlogic: Support for XLP3XX on-chip SATA")
and fedfcb1137d2 ("MIPS: Netlogic: XLP9XX on-chip SATA support") added
ahci-init and ahci-init-xlp2 as objects to build when CONFIG_SATA_AHCI
is enabled.

If CONFIG_SATA_AHCI is made modular, these two files will also get built
as modules (obj-m), which will result in the following linking failure:

ERROR: "nlm_set_pic_extra_ack" [arch/mips/netlogic/xlp/ahci-init.ko]
undefined!
ERROR: "nlm_io_base" [arch/mips/netlogic/xlp/ahci-init.ko] undefined!
ERROR: "nlm_nodes" [arch/mips/netlogic/xlp/ahci-init-xlp2.ko] undefined!
ERROR: "nlm_set_pic_extra_ack"
[arch/mips/netlogic/xlp/ahci-init-xlp2.ko] undefined!
ERROR: "xlp_socdev_to_node" [arch/mips/netlogic/xlp/ahci-init-xlp2.ko]
undefined!
ERROR: "nlm_io_base" [arch/mips/netlogic/xlp/ahci-init-xlp2.ko]
undefined!

Just check whether CONFIG_SATA_AHCI is defined for this build, and if
that is the case, add these objects to the list of built-in object
files.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: ganesanr@broadcom.com
Cc: jchandra@broadcom.com
Patchwork: https://patchwork.linux-mips.org/patch/7855/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoMIPS: Netlogic: handle modular USB case
Florian Fainelli [Wed, 24 Sep 2014 17:55:10 +0000 (10:55 -0700)]
MIPS: Netlogic: handle modular USB case

Commit 1004165f346a ("MIPS: Netlogic: USB support for XLP") and then
commit 9eac3591e78b ("MIPS: Netlogic: Add support for USB on XLP2xx")
added usb-init and usb-init-xlp2 as objects to build when CONFIG_USB is
enabled.

If CONFIG_USB is made modular, these two files will also get built as
modules (obj-m), which will result in the following linking failure:

ERROR: "nlm_io_base" [arch/mips/netlogic/xlp/usb-init.ko] undefined!
ERROR: "nlm_nodes" [arch/mips/netlogic/xlp/usb-init-xlp2.ko] undefined!
ERROR: "nlm_set_pic_extra_ack" [arch/mips/netlogic/xlp/usb-init-xlp2.ko]
undefined!
ERROR: "xlp_socdev_to_node" [arch/mips/netlogic/xlp/usb-init-xlp2.ko]
undefined!
ERROR: "nlm_io_base" [arch/mips/netlogic/xlp/usb-init-xlp2.ko]
undefined!

Just check whether CONFIG_USB is defined for this build, and if that is
the case, add these objects to the list of built-in object files.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: ganesanr@broadcom.com
Cc: jchandra@broadcom.com
Patchwork: https://patchwork.linux-mips.org/patch/7854/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
9 years agoMIPS: Loongson: Make platform serial setup always built-in.
Aaro Koskinen [Wed, 19 Nov 2014 23:05:38 +0000 (01:05 +0200)]
MIPS: Loongson: Make platform serial setup always built-in.

If SERIAL_8250 is compiled as a module, the platform specific setup
for Loongson will be a module too, and it will not work very well.
At least on Loongson 3 it will trigger a build failure,
since loongson_sysconf is not exported to modules.

Fix by making the platform specific serial code always built-in.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reported-by: Ralf Baechle <ralf@linux-mips.org>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Markos Chandras <Markos.Chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/8533/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>