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691,473 commits

Author SHA1 Message Date
Takashi Iwai
a158f2b79f ASoC: Updates for v4.7
The updates this time around are almost all driver code:
 
  - Further slow progress on the topology code.
  - Substantial updates and improvements for the da7219, es8328, fsl-ssi
    Intel and rcar drivers.
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Merge tag 'asoc-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v4.7

The updates this time around are almost all driver code:

 - Further slow progress on the topology code.
 - Substantial updates and improvements for the da7219, es8328, fsl-ssi
   Intel and rcar drivers.
2016-05-16 14:59:00 +02:00
Rafael J. Wysocki
27c4a1c5ef Merge branches 'pm-avs', 'pm-clk', 'powercap' and 'pm-tools'
* pm-avs:
  PM / AVS: rockchip-io: make io-domains a child of the GRF

* pm-clk:
  PM / clk: ensure we don't allocate a -ve size of count clks

* powercap:
  powercap/intel_rapl: Add support for Kabylake

* pm-tools:
  cpupower: fix potential memory leak
  cpupower: Add cpuidle parts into library
  cpupowerutils: bench: trivial fix of spelling mistake on "average"
  Fix cpupower manpages "NAME" section
  cpupower: bench: parse.c: fix several resource leaks
  Honour user's LDFLAGS
2016-05-16 14:31:56 +02:00
Rafael J. Wysocki
aa24781b1c Merge branches 'pm-core' and 'pm-domains'
* pm-core:
  PM / sleep: Drop unused `info' variable
  PM / Runtime: Move ignore_children flag under CONFIG_PM
  PM / Runtime: Fix error path in pm_runtime_force_resume()

* pm-domains:
  PM / Domains: Drop unnecessary wakeup code from pm_genpd_prepare()
  PM / Domains: Remove redundant pm_runtime_get|put*() in pm_genpd_prepare()
  PM / Domains: Remove ->save|restore_state() callbacks
  PM / Domains: Rename pm_genpd_runtime_suspend|resume()
  PM / Domains: Rename stop_ok to suspend_ok for the genpd governor
2016-05-16 14:31:29 +02:00
Rafael J. Wysocki
7777c2785b Merge branch 'pm-devfreq'
* pm-devfreq:
  PM / devfreq: style/typo fixes
  PM / devfreq: exynos: Add the detailed correlation for Exynos5422 bus
  PM / devfreq: event: Find the instance of devfreq-event device by using phandle
  PM / devfreq: event: Add new Exynos NoC probe driver
  MAINTAINERS: Add samsung bus frequency driver entry
  PM / devfreq: exynos: Remove unused exynos4/5 busfreq driver
  PM / devfreq: exynos: Add the detailed correlation between sub-blocks and power line
  PM / devfreq: exynos: Update documentation for bus devices using passive governor
  PM / devfreq: exynos: Add support of bus frequency of sub-blocks using passive governor
  PM / devfreq: Add new passive governor
  PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier
  PM / devfreq: Add devfreq_get_devfreq_by_phandle()
  PM / devfreq: exynos: Add documentation for generic exynos bus frequency driver
  PM / devfreq: exynos: Add generic exynos bus frequency driver
2016-05-16 14:31:15 +02:00
Rafael J. Wysocki
acc53b49b1 Merge branch 'pm-cpuidle'
* pm-cpuidle:
  cpuidle: Replace ktime_get() with local_clock()
  drivers: firmware: psci: use const and __initconst for psci_cpuidle_ops
  soc: qcom: spm: Use const and __initconst for qcom_cpuidle_ops
  ARM: cpuidle: constify return value of arm_cpuidle_get_ops()
  ARM: cpuidle: add const qualifier to cpuidle_ops member in structures
  intel_idle: add BXT support
  cpuidle: Indicate when a device has been unregistered
2016-05-16 14:31:03 +02:00
Rafael J. Wysocki
c47b3bd0d3 Merge branch 'pm-cpufreq'
* pm-cpufreq: (63 commits)
  intel_pstate: Clean up get_target_pstate_use_performance()
  intel_pstate: Use sample.core_avg_perf in get_avg_pstate()
  intel_pstate: Clarify average performance computation
  intel_pstate: Avoid unnecessary synchronize_sched() during initialization
  cpufreq: schedutil: Make default depend on CONFIG_SMP
  cpufreq: powernv: del_timer_sync when global and local pstate are equal
  cpufreq: powernv: Move smp_call_function_any() out of irq safe block
  intel_pstate: Clean up intel_pstate_get()
  cpufreq: schedutil: Make it depend on CONFIG_SMP
  cpufreq: governor: Fix handling of special cases in dbs_update()
  cpufreq: intel_pstate: Ignore _PPC processing under HWP
  cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
  cpufreq: tango: Use generic platdev driver
  cpufreq: Fix GOV_LIMITS handling for the userspace governor
  cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/
  cpufreq: dt: Kill platform-data
  mvebu: Use dev_pm_opp_set_sharing_cpus() to mark OPP tables as shared
  cpufreq: dt: Identify cpu-sharing for platforms without operating-points-v2
  cpufreq: governor: Change confusing struct field and variable names
  cpufreq: intel_pstate: Enable PPC enforcement for servers
  ...
2016-05-16 14:30:43 +02:00
Rafael J. Wysocki
29cff1844a Merge branch 'pm-opp'
* pm-opp:
  PM / OPP: Move CONFIG_OF dependent code in a separate file
  PM / OPP: add non-OF versions of dev_pm_opp_{cpumask_, }remove_table
  PM / OPP: pass cpumask by reference
  PM / OPP: Add dev_pm_opp_get_sharing_cpus()
  PM / OPP: Mark cpumask as const in dev_pm_opp_set_sharing_cpus()
  PM / OPP: -ENOSYS is applicable only to syscalls
  PM / OPP: Mark shared-opp for non-dt case
  PM / OPP: Relocate dev_pm_opp_set_sharing_cpus()
  PM / OPP: dev_pm_opp_set_sharing_cpus() doesn't depend on CONFIG_OF
  PM / OPP: Add missing doc style comments
  PM / OPP: Propagate the error returned by _find_opp_table()
2016-05-16 14:30:14 +02:00
Pantelis Antoniou
b9c43856f2 of: dynamic: changeset prop-update revert fix
When reverting an update property changeset entry that created a
property the reverse operation is a remove property and not an update.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-05-16 07:29:12 -05:00
Gavin Shan
bb91f923d1 drivers/of: Export of_detach_node()
This exports of_detach_node() for PowerPC PowerNV PCI hotplug
driver. No functional changes introduced.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-05-16 07:22:36 -05:00
Gavin Shan
83262418b0 drivers/of: Return allocated memory from of_fdt_unflatten_tree()
This returns the allocate memory chunk, storing the unflattened device
tree, from of_fdt_unflatten_tree() so that memory chunk can be released
on demand in PowerNV PCI hotplug driver.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-05-16 07:22:35 -05:00
Gavin Shan
c4263233f3 drivers/of: Specify parent node in of_fdt_unflatten_tree()
This adds one more argument to of_fdt_unflatten_tree() to specify
the parent node of the FDT blob that is going to be unflattened.
In the result, the function can be used to unflatten FDT blob that
represents device sub-tree in PowerNV PCI hotplug driver.

Cc: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-05-16 07:22:35 -05:00
Gavin Shan
947c82cbf0 drivers/of: Rename unflatten_dt_node()
This renames unflatten_dt_node() to unflatten_dt_nodes() as it
populates multiple device nodes from FDT blob. No logical changes
introduced.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-05-16 07:22:34 -05:00
Gavin Shan
50800082f1 drivers/of: Avoid recursively calling unflatten_dt_node()
In current implementation, unflatten_dt_node() is called recursively
to unflatten device nodes in FDT blob. It's stress to limited stack
capacity, especially to adopt the function to unflatten device sub-tree
that possibly has multiple root nodes. In that case, we runs out of
stack and the system can't boot up successfully.

In order to reuse the function to unflatten device sub-tree, this avoids
calling the function recursively, meaning the device nodes are unflattened
in one call on unflatten_dt_node(): two arrays are introduced to track the
parent path size and the device node of current level of depth, which will
be used by the device node on next level of depth to be unflattened. All
device nodes in more than 64 level of depth are dropped and hopefully,
the system can boot up successfully with the partial device-tree.

Also, the parameter "poffset" and "fpsize" are unused and dropped and the
parameter "dryrun" is figured out from "mem == NULL". Besides, the return
value of the function is changed to indicate the size of memory consumed by
the unflatten device tree or error code.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-05-16 07:22:34 -05:00
Gavin Shan
dfbd4c6eff drivers/of: Split unflatten_dt_node()
The function unflatten_dt_node() is called recursively to unflatten
device nodes and properties in the FDT blob. It looks complicated
and hard to be understood.

This splits the function into 3 functions: populate_properties(),
populate_node() and unflatten_dt_node(). populate_properties(),
which is called by populate_node(), creates properties for the
indicated device node. The later one creates the device nodes
from FDT blob. populate_node() gets the offset in FDT blob for
next device nodes and then calls populate_node(). No logical
changes introduced.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-05-16 07:22:33 -05:00
Srinivas Pandruvada
65a9f31c50 scripts/package/Makefile: rpmbuild add support of RPMOPTS
After commit 21a59991ce ("scripts/package/Makefile: rpmbuild is needed
for rpm targets"), it is no longer possible to specify RPMOPTS.
For example, we can no longer able to control _topdir using the following
make command.
make RPMOPTS="--define '_topdir /home/xyz/workspace/'" binrpm-pkg

Fixes: 21a59991ce ("scripts/package/Makefile: rpmbuild is needed for rpm targets")
Cc: <stable@vger.kernel.org> # 4.3+
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
2016-05-16 14:01:48 +02:00
Dave Hansen
e8df1a95b6 x86/cpufeature, x86/mm/pkeys: Fix broken compile-time disabling of pkeys
When I added support for the Memory Protection Keys processor
feature, I had to reindent the REQUIRED/DISABLED_MASK macros, and
also consult the later cpufeature words.

I'm not quite sure how I bungled it, but I consulted the wrong
word at the end.  This only affected required or disabled cpu
features in cpufeature words 14, 15 and 16.  So, only Protection
Keys itself was screwed over here.

The result was that if you disabled pkeys in your .config, you
might still see some code show up that should have been compiled
out.  There should be no functional problems, though.

In verifying this patch I also realized that the DISABLE_PKU/OSPKE
macros were defined backwards and that the cpu_has() check in
setup_pku() was not doing the compile-time disabled checks.

So also fix the macro for DISABLE_PKU/OSPKE and add a compile-time
check for pkeys being enabled in setup_pku().

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Fixes: dfb4a70f20 ("x86/cpufeature, x86/mm/pkeys: Add protection keys related CPUID definitions")
Link: http://lkml.kernel.org/r/20160513221328.C200930B@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-05-16 12:59:23 +02:00
Borislav Petkov
4544ba8c6b locking/rwsem: Fix comment on register clobbering
Document explicitly that %edx can get clobbered on the slow path, on
32-bit kernels. Something I learned the hard way. :-\

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-next@vger.kernel.org
Link: http://lkml.kernel.org/r/20160516093428.GA26108@pd.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-05-16 12:35:40 +02:00
Adrian Hunter
1c447116d0 mmc: mmc: Fix partition switch timeout for some eMMCs
Some eMMCs set the partition switch timeout too low.

Now typically eMMCs are considered a critical component (e.g. because
they store the root file system) and consequently are expected to be
reliable.  Thus we can neglect the use case where eMMCs can't switch
reliably and we might want a lower timeout to facilitate speedy
recovery.

Although we could employ a quirk for the cards that are affected (if
we could identify them all), as described above, there is little
benefit to having a low timeout, so instead simply set a minimum
timeout.

The minimum is set to 300ms somewhat arbitrarily - the examples that
have been seen had a timeout of 10ms but were sometimes taking 60-70ms.

Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-16 11:31:28 +02:00
Wolfram Sang
685d29ef17 mmc: sh_mobile_sdhi: enable SDIO IRQs for RCar Gen3
Tested on a Salvator-X board with a Spectec SDW-823 WLAN card.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-16 11:31:27 +02:00
Wolfram Sang
88ea46bcbf mmc: sdio: fall back to SDIO 1.0 for broken 1.1 cards
I have two SDIO WLAN cards which specify being SDIO Rev. 1.1 cards but
their FUNCE tuple reports the smaller size of a Rev 1.0 card. So,
enforce 1.0 on these cards to avoid reading the not present registers.
They are not really used anyhow. My cards initialize properly after this
patch.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-16 11:31:27 +02:00
Simon Horman
5b5fe95a69 mmc: sdhci-st: correct name of sd-uhs-sdr50 property
Correct what appears to be a typo in the name of the sd-uhs-sdr50.

Also fix mixed tab/space indentation.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-16 11:31:26 +02:00
Wolfram Sang
560e647515 MAINTAINERS: update entry for TMIO MMC driver
I have some more additions planned for this driver, so I'd like to get
notified of other changes and coordinate them. Drop Ian as maintainer
because he hasn't been involved in development for a while. Thanks for
all the initial work, of course! Also, reflect the recent changes to
the include file layout.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Ian Molton <ian@mnementh.co.uk>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-16 11:31:26 +02:00
Ken Sumrall
cc4d04be94 mmc: block: improve logging of handling emmc timeouts
Add some logging to make it clear just how the emmc timeout
was handled.

Signed-off-by: Ken Sumrall <ksumrall@android.com>
[AmitP: cherry-picked this Android patch from aosp
        common kernel android-4.4]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-16 11:31:26 +02:00
Dong Aisheng
ded97e0b16 mmc: sdhci: removed unneeded function wrappers
After commit d6463f170cf0 ("mmc: sdhci: Remove redundant runtime PM calls"),
some of original sdhci_do_xx() function wrappers becomes meaningless,
so remove them.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-05-16 11:31:25 +02:00
Scott Talbert
4673272f43 btrfs: fix memory leak during RAID 5/6 device replacement
A 'struct bio' is allocated in scrub_missing_raid56_pages(), but it was never
freed anywhere.

Signed-off-by: Scott Talbert <scott.talbert@hgst.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2016-05-16 10:17:58 +02:00
Jani Nikula
e8fcdf1e65 drm/i915: don't mix bitwise and logical operations for has_snoop
Also make the code more readable.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1463148278-23193-2-git-send-email-jani.nikula@intel.com
2016-05-16 10:44:22 +03:00
Fengguang Wu
52e9e6e056 microblaze: pci: export isa_io_base to fix link errors
ERROR: "isa_io_base" [sound/pci/vx222/snd-vx222.ko] undefined!
ERROR: "isa_io_base" [sound/pci/trident/snd-trident.ko] undefined!
ERROR: "isa_io_base" [sound/pci/snd-via82xx.ko] undefined!
...
ERROR: "isa_io_base" [drivers/watchdog/wdt_pci.ko] undefined!
ERROR: "isa_io_base" [drivers/watchdog/pcwd_pci.ko] undefined!
ERROR: "isa_io_base" [drivers/video/vgastate.ko] undefined!
...
ERROR: "isa_io_base" [drivers/video/fbdev/cirrusfb.ko] undefined!
ERROR: "isa_io_base" [drivers/video/fbdev/arkfb.ko] undefined!
ERROR: "isa_io_base" [drivers/usb/host/uhci-hcd.ko] undefined!
ERROR: "isa_io_base" [drivers/usb/host/isp1362-hcd.ko] undefined!
ERROR: "isa_io_base" [drivers/tty/serial/jsm/jsm.ko] undefined!
ERROR: "isa_io_base" [drivers/tty/serial/8250/8250_pci.ko] undefined!
...
ERROR: "isa_io_base" [drivers/scsi/qla2xxx/qla2xxx.ko] undefined!
ERROR: "isa_io_base" [drivers/scsi/ppa.ko] undefined!

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-05-16 09:18:10 +02:00
Michal Simek
fbce3befd6 microblaze: Wire up userfaultfd, membarrier, mlock2 syscalls
Wire up new syscalls userfaultfd, membarrier and mlock2.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-05-16 09:18:01 +02:00
Takashi Iwai
581abbaa03 Merge branch 'for-next' into for-linus 2016-05-16 09:13:08 +02:00
Michele Di Giorgio
191b07541f thermal: check validity get_trip_hyst function pointer in bang-bang governor
Bang-bang thermal governor uses trip point hysteresis to make decisions.
Hysteresis is a required property in the device tree for trip points, but it is
an optional thermal zone device operation. Hence, we need to check whether the
function pointer is valid or not.

If it is not available, we assume the hysteresis to be zero. Consequently, a
highly varying temperature will make the governor continuosly switch a cooling
device ON and OFF.

CC: Zhang Rui <rui.zhang@intel.com>
CC: Eduardo Valentin <edubezval@gmail.com>
CC: Peter Feuerer <peter@piie.net>
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-05-16 13:21:11 +08:00
chenhui zhao
a8165d421d powerpc/fsl-pci: Add a workaround for PCI 5 errata
Issue:
As a master, the PCI IP block can combine a memory write to the last PCI
double word (4 bytes) of a cacheline with a 4 byte memory write to the
first PCI double word of the subsequent cacheline. This affects 32-bit
PCI target devices that blindly assert STOP on memory-write transactions,
without detecting that the data beat being transferred is the last data
beat of the transaction. It can cause a hang. PCI-X operation is not
affected by this erratum.

Workaround:
Setting the bit MDS in the PCI Bus Function Register will disable the
combining of crossing cacheline boundary requests into one burst
transaction. Therefore, it can prevent the errata scenario from
occurring.

This errata exists in MPC8543, MPC8543E, MPC8545, MPC8545E, MPC8547,
MPC8547E, MPC8548 and MPC8548E. Refer to PCI 5 in MPC8548 errata
document.

Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Zhiqiang Hou <Zhiqiang.Hou@freescale.com>
[scottwood: whitespace fix]
Signed-off-by: Scott Wood <oss@buserror.net>
2016-05-15 19:18:48 -05:00
Hou Zhiqiang
6a369fa285 powerpc/fsl: Fix SPI compatible on t208xrdb and t1040rdb
On the t208xrdb and t1040rdb, the SPI device is n25q512ax3
instead of n25q512a.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@freescale.com>
Signed-off-by: Scott Wood <oss@buserror.net>
2016-05-15 19:15:44 -05:00
Linus Torvalds
2dcd0af568 Linux 4.6 v4.6 2016-05-15 15:43:13 -07:00
Peter Zijlstra
04cafed7fc locking/rwsem: Fix down_write_killable()
The new signal_pending exit path in __rwsem_down_write_failed_common()
was fingered as breaking his kernel by Tetsuo Handa.

Upon inspection it was found that there are two things wrong with it;

 - it forgets to remove WAITING_BIAS if it leaves the list empty, or
 - it forgets to wake further waiters that were blocked on the now
   removed waiter.

Especially the first issue causes new lock attempts to block and stall
indefinitely, as the code assumes that pending waiters mean there is
an owner that will wake when it releases the lock.

Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Waiman Long <Waiman.Long@hpe.com>
Link: http://lkml.kernel.org/r/20160512115745.GP3192@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-05-15 22:55:00 +02:00
Bryan O'Donoghue
8c81d4608d greybus: interface: Extract and store Interface feature byte
The Interface description in the Greybus specification contains a
'features' field which is currently not implemented on the AP side. The
Interface features field provides information on optional attributes of an
Interface as a bitmask. Currently only GREYBUS_INTERFACE_FEATURE_TIMESYNC
is implemented in the specification but, the expectation is that other
feature flags will be added over time.

This patch adds support to extract the feature byte communicated in the
features field of the Interface Descriptor header and extends struct
interface to contain a features field through which any user with a pointer
to struct interface may interrogate the features of an Interface.

This is a necessary pre-cursor for TimeSync to ensure only Interfaces which
declare GREYBUS_INTERFACE_FEATURE_TIMESYNC will be included when we go
through the process of FrameTime synchronization.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2016-05-15 11:39:57 -07:00
Bryan O'Donoghue
c8a657ba3f greybus: hd: Add TimeSync APBridge commands
This patch adds a number of USB Vendor commands to es2.c to enable TimeSync
in the bridge.

Adds:
- es2.c::timesync_enable(u8 count, u64 frame_time, u32 strobe_delay,
			 u32 refclk);
  Commands APBx to enable timers and clocks to track a pulse-train of
  incoming TIME_SYNC strobes with strobe_delay microseconds between each.
  Provides the reference clock the AP is using to track FrameTime. It is
  the responsibility of APBx to adequately track the FrameTime based on
  the indicated AP refclk. Once this command has succeeded APBx may not
  transition to a low-power state were FrameTime counters stop.

  This function is initiated from the timesync worker thread logic when
  re-synchronizing frame-time throughout the system.

  TimeSync is at this time enabled for all APBx active in the system i.e.
  currently APB2 will not receive TimeSync commands until it becomes a
  registered host-device in Greybus.

- es2.c::timesync_disable(void)
  Commands APBx to discontinue tracking of FrameTime. After this operation
  completes APBx may transition to a low-power state where timer-clocks
  stop operating.

- es2.c::timesync_authoritative(u64 *frame_time)
  Provides an authoritative time for each TIME_SYNC strobe to APBx.
  APBx must align its local FrameTime to the authoritative clock.

- es2.c::timesync_get_last_event(u64 *frame_time)
  Returns the FrameTime at the last SVC_TIMESYNC_PING to the AP Module.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2016-05-15 11:39:57 -07:00
David S. Miller
f23e0f6507 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2016-05-14

This series contains updates to i40e and i40evf.

Kevin adds support to disable link on all ports and changes bits set
for telling firmware the PHY needs to be modified by the driver.

Anjali adds a feature to enable/disable all multicast for a trusted
VF.  Added priv-flag knob to configure global true promiscuous
support.

Shannon adds the support code for calling the admin queue API call
aq_set_switch_config().

Mitch modifies the VF, to log a message if an untrusted VF attempts to
configure promiscuous mode, but lies to it and returns everything is ok
instead of returning an error.  Corrects the logic for reporting the
receive packet hash.  Fixed the adding of a broadcast filter for VFs,
since that all VSIs are configured to receive broadcasts as default,
so do not need to add a filter.

Catherine refactors the ethtool get_settings to report the possible
supported link modes from what we know about the current PHY type and
that with the firmware supported PHY types.

Jacob changes the driver to use WARN_ONCE in order to highlight the
issue, but do not display a warning every time when receive hang
message is received.

Akeem corrects receive ptype payload layer for non_tunneled IPv6, when
it should be layer 4 for UDP, instead of layer 3.

Dan Carpenter fixes an uninitialized variable bug.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:47:27 -04:00
David S. Miller
bf14e9ec80 Merge branch 'bnxt_en-next'
Michael Chan says:

====================
bnxt_en: updates for net-next.

Non-critical bug fixes, improvements, a new ethtool feature, and a new
device ID.

v2: Fixed a bug in bnxt_get_module_eeprom() found by Ben Hutchings.

Ajit Khaparde (2):
  bnxt_en: Add Support for ETHTOOL_GMODULEINFO and ETHTOOL_GMODULEEEPRO
  bnxt_en: Report PCIe link speed and width during driver load

Michael Chan (6):
  bnxt_en: Reduce maximum ring pages if page size is 64K.
  bnxt_en: Improve the delay logic for firmware response.
  bnxt_en: Fix length value in dmesg log firmware error message.
  bnxt_en: Simplify and improve unsupported SFP+ module reporting.
  bnxt_en: Add BCM57314 device ID.
  bnxt_en: Use dma_rmb() instead of rmb().

Satish Baddipadige (1):
  bnxt_en: Fix invalid max channel parameter in ethtool -l.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:49 -04:00
Michael Chan
b67daab033 bnxt_en: Use dma_rmb() instead of rmb().
Use the weaker but more appropriate dma_rmb() to order the reading of
the completion ring.

Suggested-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:48 -04:00
Michael Chan
5049e33b55 bnxt_en: Add BCM57314 device ID.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:48 -04:00
Michael Chan
10289bec00 bnxt_en: Simplify and improve unsupported SFP+ module reporting.
The current code is more complicated than necessary and can only report
unsupported SFP+ module if it is plugged in after the device is up.

Rename bnxt_port_module_event() to bnxt_get_port_module_status().  We
already have the current module_status in the link_info structure, so
just check that and report any unsupported SFP+ module status.  Delete
the unnecessary last_port_module_event.  Call this function at the
end of bnxt_open to report unsupported module already plugged in.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:48 -04:00
Michael Chan
8578d6c19a bnxt_en: Fix length value in dmesg log firmware error message.
The len value in the hwrm error message is wrong.  Use the properly adjusted
value in the variable len.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:48 -04:00
Michael Chan
a11fa2be6d bnxt_en: Improve the delay logic for firmware response.
The current code has 2 problems:

1. The maximum wait time is not long enough.  It is about 60% of the
duration specified by the firmware.  It is calling usleep_range(600, 800)
for every 1 msec we are supposed to wait.

2. The granularity of the delay is too coarse.  Many simple firmware
commands finish in 25 usec or less.

We fix these 2 issues by multiplying the original 1 msec loop counter by
40 and calling usleep_range(25, 40) for each iteration.

There is also a second delay loop to wait for the last DMA word to
complete.  This delay loop should be a very short 5 usec wait.

This change results in much faster bring-up/down time:

Before the patch:

time ip link set p4p1 up

real    0m0.120s
user    0m0.001s
sys     0m0.009s

After the patch:

time ip link set p4p1 up

real    0m0.030s
user    0m0.000s
sys     0m0.010s

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:48 -04:00
Michael Chan
d0a42d6fc8 bnxt_en: Reduce maximum ring pages if page size is 64K.
The chip supports 4K/8K/64K page sizes for the rings and we try to
match it to the CPU PAGE_SIZE.  The current page size limits for the rings
are based on 4K/8K page size. If the page size is 64K, these limits are
too large.  Reduce them appropriately.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:48 -04:00
Ajit Khaparde
90c4f788f6 bnxt_en: Report PCIe link speed and width during driver load
Add code to log a message during driver load indicating PCIe link
speed and width.

The log message will look like this:
bnxt_en 0000:86:00.0 eth0: PCIe: Speed 8.0GT/s Width x8

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:47 -04:00
Ajit Khaparde
42ee18fe4c bnxt_en: Add Support for ETHTOOL_GMODULEINFO and ETHTOOL_GMODULEEEPRO
Add support to fetch the SFP EEPROM settings from the firmware
and display it via the ethtool -m command.  We support SFP+ and QSFP
modules.

v2: Fixed a bug in bnxt_get_module_eeprom() found by Ben Hutchings.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:47 -04:00
Satish Baddipadige
18d6e4e2d8 bnxt_en: Fix invalid max channel parameter in ethtool -l.
When there is only 1 MSI-X vector or in INTA mode, tx and rx pre-set
max channel parameters are shown incorrectly in ethtool -l.  With only 1
vector, bnxt_get_max_rings() will return -ENOMEM.  bnxt_get_channels
should check this return value, and set max_rx/max_tx to 0 if it is
non-zero.

Signed-off-by: Satish Baddipadige <sbaddipa@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:35:47 -04:00
David S. Miller
909b27f706 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The nf_conntrack_core.c fix in 'net' is not relevant in 'net-next'
because we no longer have a per-netns conntrack hash.

The ip_gre.c conflict as well as the iwlwifi ones were cases of
overlapping changes.

Conflicts:
	drivers/net/wireless/intel/iwlwifi/mvm/tx.c
	net/ipv4/ip_gre.c
	net/netfilter/nf_conntrack_core.c

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-15 13:32:48 -04:00
Linus Torvalds
5f95063c68 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
 "Just the missing compat entry for the new pread/writev2"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Use compat version for preadv2 and pwritev2
2016-05-15 08:07:35 -07:00
Niklas Söderlund
73e8b05283 i2c: rcar: add DMA support
Make it possible to transfer i2c message buffers via DMA.
Start/Stop/Sending_Slave_Address and some data is still handled using
the old state machine, it is sending the bulk of the data that is done
via DMA.

The first byte of a transmission and the last two bytes of reception are
sent/received using PIO. This is needed for the HW to have access to the
first byte before DMA transmit and to be able to set the STOP condition
for DMA reception.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
[wsa: fixed a checkpatch warning]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-05-15 08:52:49 +02:00