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605268 commits

Author SHA1 Message Date
Jiri Olsa
7fa9b8fba0 perf test: Add -F/--dont-fork option
Adding -F/--dont-fork option to bypass forking for each test. It's
useful for debugging test.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Nilay Vaish <nilayvaish@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467113345-12669-1-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30 18:27:45 -03:00
Jiri Olsa
8fbc38aaaf perf tests: Fix thread map test for -F option
I hit a bug when running test suite without forking each test (-F
option):

  $ perf test -Fv
  ...
  34: Test thread map                                          :
  --- start ---
  FAILED tests/thread-map.c:24 wrong comm
  ---- end ----
  Test thread map: FAILED!

The reason was the process name wasn't 'perf' as expected by the test,
because other tests set the name as well.

Setting it explicitly now.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Nilay Vaish <nilayvaish@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467113345-12669-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30 18:27:44 -03:00
Jiri Olsa
f3069249e9 perf tools: Allow to reset open files counter
I hit a bug when running test suite without forking
each test (-F option):

  $ perf test -F dso
   8: Test dso data read                                       : Ok
   9: Test dso data cache                                      : FAILED!
  10: Test dso data reopen                                     : FAILED!

The reason the session file limit is set just once for
perf process so we need to reset it for each test,
otherwise wrong limit is taken into account.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Nilay Vaish <nilayvaish@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467113345-12669-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30 18:27:44 -03:00
Arnaldo Carvalho de Melo
3be28870c0 perf trace beauty eventfd: No need to include eventfd.h
Old systems such as RHEL5 lack this file, and what we need is
already under ifdefs, so just ditch this #include.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-dzbjfllw6znuoy37skwnwa4r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30 18:27:43 -03:00
Arnaldo Carvalho de Melo
a41af25b3c perf trace beauty sched_policy: Define SCHED_RESET_ON_FORK for older systems
RHEL5 for instance doesn't have this one, help it.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-3adewnii78zi110eovfciopy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30 18:27:43 -03:00
Peter Zijlstra (Intel)
135cce1bf1 perf annotate: Add number of samples to the header
Staring at annotations of large functions is useless if there's only a
few samples in them. Report the number of samples in the header to make
this easier to determine.

Committer note:

The change amounts to:

  - Percent | Source code & Disassembly of perf-vdso.so for cycles:u
  ------------------------------------------------------------------
  + Percent | Source code & Disassembly of perf-vdso.so for cycles:u (3278 samples)
  +--------------------------------------------------------------------------------

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20160630082955.GA30921@twins.programming.kicks-ass.net
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30 18:27:42 -03:00
Scott Mayhew
cb7d224f82 lockd: unregister notifier blocks if the service fails to come up completely
If the lockd service fails to start up then we need to be sure that the
notifier blocks are not registered, otherwise a subsequent start of the
service could cause the same notifier to be registered twice, leading to
soft lockups.

Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 0751ddf77b "lockd: Register callbacks on the inetaddr_chain..."
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2016-06-30 16:35:07 -04:00
Tahsin Erdogan
7452495555 writeback: inode cgroup wb switch should not call ihold()
Asynchronous wb switching of inodes takes an additional ref count on an
inode to make sure inode remains valid until switchover is completed.

However, anyone calling ihold() must already have a ref count on inode,
but in this case inode->i_count may already be zero:

------------[ cut here ]------------
WARNING: CPU: 1 PID: 917 at fs/inode.c:397 ihold+0x2b/0x30
CPU: 1 PID: 917 Comm: kworker/u4:5 Not tainted 4.7.0-rc2+ #49
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs
01/01/2011
Workqueue: writeback wb_workfn (flush-8:16)
 0000000000000000 ffff88007ca0fb58 ffffffff805990af 0000000000000000
 0000000000000000 ffff88007ca0fb98 ffffffff80268702 0000018d000004e2
 ffff88007cef40e8 ffff88007c9b89a8 ffff880079e3a740 0000000000000003
Call Trace:
 [<ffffffff805990af>] dump_stack+0x4d/0x6e
 [<ffffffff80268702>] __warn+0xc2/0xe0
 [<ffffffff802687d8>] warn_slowpath_null+0x18/0x20
 [<ffffffff8035b4ab>] ihold+0x2b/0x30
 [<ffffffff80367ecc>] inode_switch_wbs+0x11c/0x180
 [<ffffffff80369110>] wbc_detach_inode+0x170/0x1a0
 [<ffffffff80369abc>] writeback_sb_inodes+0x21c/0x530
 [<ffffffff80369f7e>] wb_writeback+0xee/0x1e0
 [<ffffffff8036a147>] wb_workfn+0xd7/0x280
 [<ffffffff80287531>] ? try_to_wake_up+0x1b1/0x2b0
 [<ffffffff8027bb09>] process_one_work+0x129/0x300
 [<ffffffff8027be06>] worker_thread+0x126/0x480
 [<ffffffff8098cde7>] ? __schedule+0x1c7/0x561
 [<ffffffff8027bce0>] ? process_one_work+0x300/0x300
 [<ffffffff80280ff4>] kthread+0xc4/0xe0
 [<ffffffff80335578>] ? kfree+0xc8/0x100
 [<ffffffff809903cf>] ret_from_fork+0x1f/0x40
 [<ffffffff80280f30>] ? __kthread_parkme+0x70/0x70
---[ end trace aaefd2fd9f306bc4 ]---

Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-06-30 13:58:41 -06:00
Maxime Ripard
2cd368300a drm/sun4i: Send vblank event when the CRTC is disabled
So far, we were missing to send the vblank event when disabling the CRTC,
making us never report the last vblank event.

This was causing a time out on the page flip, which should be solved now.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-06-30 21:55:32 +02:00
Maxime Ripard
0b340405fc drm/sun4i: Report proper vblank
The sun4i display engine doesn't have any vblank counter. Use the proper
helper for that.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-06-30 21:55:26 +02:00
Linus Walleij
cde4cb5dd4 iio: magn: ak8975: deploy runtime and system PM
This adds runtime PM support to the AK8975 driver. It solves two
problems:

- After reading the first value the chip was left in MODE_ONCE,
  meaning (presumably) it may be consuming more power. Now the
  runtime PM hooks kick in and set it to POWER_DOWN.

- Regulators were simply enabled and left on, making it
  impossible to turn the power consuming regulators off because
  of the increased refcount. We now disable the regulators at
  autosuspend.

- We also handle system suspend: by using pm_runtime_force_suspend()
  and pm_runtime_force_resume() from the system PM sleep hooks,
  the runtime PM code is managing the power also for this case.
  It is currently not completely optimal: when the system resumes
  the AK8975 goes into active mode even if noone is going to use
  it: currently the force calls need to be paired, but the runtime
  PM people are working on making it possible to leave devices
  runtime suspended when coming back from sleep.

Inspired by my work on the BH1780 light sensor driver.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:40:16 +01:00
Linus Walleij
8d06cd25f7 iio: magn: ak8975: make sure to power down at remove()
The code was not powering the magnetometer down properly at
remove(): just cutting the regulators without first setting the
device in power off mode. Fix this.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:40:12 +01:00
Linus Walleij
b1037c1a49 iio: magn: ak8975: allow a delay after enabling regulators
The datasheet actually specifies that we need to wait atleast
500us after powering on the device before trying to set mode.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:40:04 +01:00
Linus Walleij
9e6c16d989 iio: magn: ak8975: refactor regulator handlers
Move the regulator_get() calls directly into the probe() function,
keep only the power_on()/power_off() functions to flick the
regulators on/off.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:39:58 +01:00
Linus Walleij
b21d3f3452 iio: magn: ak8975: add Vid regulator
The AK8975 has two power sources: Vdd (analog voltage supply)
and Vid (digital voltage supply). Optionally also obtain the Vid
supply regulator and enable it.

If an error occurs when enabling one of the regulators: bail out.

Cc: Gregor Boirie <gregor.boirie@parrot.com>
Cc: Richard Leitner <dev@g0hl1n.net>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:39:51 +01:00
Linus Walleij
90e96fdd01 iio: magn: ak8975: fix regulator usage
IS_ERR_OR_NULL() should never be used with regulators because
a NULL pointer may be a perfectly valid dummy regulator

We should always succeed to fetch and enable a regulator, but
it may be a dummy. That is fine, so bail out for any real
errors or probe deferrals

Include the error code in the warning print so we know what
kind of problem we're dealing with (for example it is nice to
see if it is a probe deferral).

As we will bail out of probe if the regulator is erroneous,
just issue regulator_disable() on the poweroff path: it will
succeed.

Cc: Mark Brown <broonie@kernel.org>
Cc: Lars-Peter Clausen Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:39:43 +01:00
Linus Walleij
c5842b47b2 iio: pressure: bmp280: add reset GPIO line handling
On the APQ8060 Dragonboard the reset line to the BMP085 pressure
sensor is not deasserted on boot, so the driver needs to handle
this. For a simple GPIO line supplied as a descriptor (from a board
file, device tree or ACPI) this does the trick.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:39:40 +01:00
Linus Walleij
78f5027132 iio: pressure: bmp280: support device tree initialization
This adds device tree support to the BMP085, BMP180 and BMP280
pressure sensors. Tested on the Qualcomm APQ8060 Dragonboard:

iio:device1$ cat in_temp_input
26700
iio:device1$ cat in_pressure_input
99.185000000

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:39:36 +01:00
Linus Walleij
8d2c7ef80b iio: pressure: bmp280: augment DT bindings
This adds standard device tree bindings for a reset GPIO line, and
the VDDD and VDDA power regulators.

Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 20:39:24 +01:00
Gregor Boirie
bc2b7dab62 iio:core: timestamping clock selection support
Adds a new per-device sysfs attribute "current_timestamp_clock" to allow
userspace to select a particular POSIX clock for buffered samples and
events timestamping.

Following clocks, as listed in clock_gettime(2), are supported:
CLOCK_REALTIME, CLOCK_MONOTONIC, CLOCK_MONOTONIC_RAW,
CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_COARSE, CLOCK_BOOTTIME and
CLOCK_TAI.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Acked-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 19:41:38 +01:00
Gregor Boirie
eaaa7ec71b timekeeping: export get_monotonic_coarse64 symbol
EXPORT_SYMBOL() get_monotonic_coarse64 for new IIO timestamping clock
selection usage. This provides user apps the ability to request a
particular IIO device to timestamp samples using a monotonic coarse clock
granularity.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 19:41:23 +01:00
Linus Torvalds
1a0a02d1ef ARM and x86 fixes.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "ARM and x86 fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: nVMX: VMX instructions: fix segment checks when L1 is in long mode.
  KVM: LAPIC: cap __delay at lapic_timer_advance_ns
  KVM: x86: move nsec_to_cycles from x86.c to x86.h
  pvclock: Get rid of __pvclock_read_cycles in function pvclock_read_flags
  pvclock: Cleanup to remove function pvclock_get_nsec_offset
  pvclock: Add CPU barriers to get correct version value
  KVM: arm/arm64: Stop leaking vcpu pid references
  arm64: KVM: fix build with CONFIG_ARM_PMU disabled
2016-06-30 09:57:52 -07:00
Linus Torvalds
284341d260 ARC Fix for 4.7-rc6
- Reinstate dwarf unwinder/loadable-modules with new gnu tools
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Merge tag 'arc-4.7-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fix from Vineet Gupta:
 "Reinstate dwarf unwinder/loadable-modules with new gnu tools"

* tag 'arc-4.7-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  arc: unwind: warn only once if DW2_UNWIND is disabled
  ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame)
2016-06-30 09:53:43 -07:00
Linus Torvalds
20bfdca199 pwm: Fixes for v4.7-rc6
One more fix for some fallout observed after the introduction of the
 atomic API.
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Merge tag 'pwm/for-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fixes from Thierry Reding:
 "One more fix for some fallout observed after the introduction of the
  atomic API"

* tag 'pwm/for-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: Fix pwm_apply_args()
2016-06-30 09:49:26 -07:00
Linus Torvalds
4aa34ce3c1 - Bug Fixes
- Use new reset_*_get_shared() variant to prevent reset line obtainment failure
     - Fixes: 0b52297 ("reset: Add support for shared reset controls")
   - Fix unintentional switch() fall-through into error path
   - Fix uninitialised variable compiler warning
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Merge tag 'mfd-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD fixes from Lee Jones:
 "Contained are some standard fixes and unusually an extension to the
  Reset API.  Some of those changes are required to fix a bug introduced
  in -rc1, which introduces extra 'reset line checks' i.e. whether the
  line is shared or not.  If a line is shared and the new *_shared() API
  is not used, the request fails with an error.  This breaks USB in v4.7
  for ST's platforms.

  Admittedly, there are some patches contained in our (MFD/Reset)
  immutable branch which are not true -fixes, but there isn't anything I
  can do about that.  Rest assured though, there aren't any API
  'changes'.  Everything is the same from the consumer's perspective.

   - Use new reset_*_get_shared() variant to prevent reset line
     obtainment failure (Fixes commit 0b52297f22: "reset: Add support
     for shared reset controls")

   - Fix unintentional switch() fall-through into error path

   - Fix uninitialised variable compiler warning"

* tag 'mfd-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: da9053: Fix compiler warning message for uninitialised variable
  mfd: max77620: Fix FPS switch statements
  phy: phy-stih407-usb: Inform the reset framework that our reset line may be shared
  usb: dwc3: st: Inform the reset framework that our reset line may be shared
  usb: host: ehci-st: Inform the reset framework that our reset line may be shared
  usb: host: ohci-st: Inform the reset framework that our reset line may be shared
  reset: TRIVIAL: Add line break at same place for similar APIs
  reset: Supply *_shared variant calls when using *_optional APIs
  reset: Supply *_shared variant calls when using of_* API
  reset: Ensure drivers are explicit when requesting reset lines
  reset: Reorder inline reset_control_get*() wrappers
2016-06-30 09:44:34 -07:00
Paolo Bonzini
f5c5c225fc KVM/ARM Fixes for v4.7-rc6:
Fixes a build issue without CONFIG_ARM_PMU and plugs pid leak on arm/arm64.
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Merge tag 'kvm-arm-for-v4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

KVM/ARM Fixes for v4.7-rc6:

Fixes a build issue without CONFIG_ARM_PMU and plugs pid leak on arm/arm64.
2016-06-30 17:11:20 +02:00
Sinan Kaya
54794580f5 ACPI,PCI,IRQ: correct operator precedence
The omitted parenthesis prevents the addition operation when
acpi_penalize_isa_irq function is called.

Fixes: 103544d869 (ACPI,PCI,IRQ: reduce resource requirements)
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-06-30 15:35:27 +02:00
Arnd Bergmann
af61f96109 extcon: link devres into core module
Splitting the resource-managed functions into a separate module
means that the extcon core now fails to build because the internal
"extcon_dev_allocate" symbol is not exported:

ERROR: extcon_dev_allocate [drivers/extcon/devres.ko] undefined!

My guess is that the intention was not to have two separate
modules (which could be fixed by adding an export, plus the
normal MODULE_AUTHOR/MODULE_LICENSE/... fields), but have two
source files in the same module.

This fixes the Makefile accordingly, making the name of the
module extcon_core.ko, which is created from building both
extcon.c and devres.c.

Fixes: b225d00f3a ("extcon: Split out the resource-managed functions from extcon core")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2016-06-30 22:18:40 +09:00
Soohoon Lee
43daa96b16 usbnet: Stop RX Q on MTU change
When MTU is changed unlink_urbs() flushes RX Q but mean while usbnet_bh()
can fill up the Q at the same time.
Depends on which HCD is down there unlink takes long time then the flush
never ends.

Signed-off-by: Soohoon Lee <soohoon.lee@f5.com>
Reviewed-by: Kimball Murray <kmurray@f5.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 09:05:05 -04:00
Shmulik Ladkani
fedbb6b4ff ipv4: Fix ip_skb_dst_mtu to use the sk passed by ip_finish_output
ip_skb_dst_mtu uses skb->sk, assuming it is an AF_INET socket (e.g. it
calls ip_sk_use_pmtu which casts sk as an inet_sk).

However, in the case of UDP tunneling, the skb->sk is not necessarily an
inet socket (could be AF_PACKET socket, or AF_UNSPEC if arriving from
tun/tap).

OTOH, the sk passed as an argument throughout IP stack's output path is
the one which is of PMTU interest:
 - In case of local sockets, sk is same as skb->sk;
 - In case of a udp tunnel, sk is the tunneling socket.

Fix, by passing ip_finish_output's sk to ip_skb_dst_mtu.
This augments 7026b1ddb6 'netfilter: Pass socket pointer down through okfn().'

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 09:02:48 -04:00
David S. Miller
5ab0d6a016 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2016-06-29

This series contains fixes to e1000e and ixgbevf.

Jarod Wilson's fix for e1000e was a follow-on patch to his previous fix to
keep the hardware VLAN CTAG's for receive and transmit in sync, which
in turn resolves the original issue, so revert a portion of the original
fix.

Xin Long noticed that the ret_val needed to be initialized to IXGBE_ERR_MBX,
instead of -IXGBE_ERR_MBX.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 08:57:24 -04:00
Peter Zijlstra (Intel)
53dd9b5f95 perf annotate: Simplify header dotted line sizing
No need to use strlen, etc to figure that out, just use the return from
printf(), it will tell how wide the following line needs to be.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20160630082955.GA30921@twins.programming.kicks-ass.net
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30 09:21:03 -03:00
Mark Brown
2a9b27b326 Merge remote-tracking branches 'spi/fix/ep93xx', 'spi/fix/rockchip', 'spi/fix/sunxi' and 'spi/fix/ti-qspi' into spi-linus 2016-06-30 13:17:29 +01:00
Arnd Bergmann
b44439e429 ARM: mvebu: compile pm code conditionally
A cleanup to include the headers correctly caused another build problem:

arch/arm/mach-mvebu/kirkwood-pm.c:70:13: error: redefinition of 'kirkwood_pm_init'
arch/arm/mach-mvebu/kirkwood-pm.h:23:20: note: previous definition of 'kirkwood_pm_init' was here

The underlying issue is that kirkwood-pm.o is not actually meant to be
used when CONFIG_PM is disabled, so we should also leave it out of the
Makefile.

The same seems to be true for the PM code in MACH_MVEBU_V7, and I'm
treating it the same way here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: d705c1a66e ("ARM: Kirkwood: fix kirkwood_pm_init() declaration/type")
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-30 13:47:52 +02:00
Ravi Bangoria
f4e47f9f7b perf evsel: Utility function to fetch arch
Add Utility function to fetch arch using evsel. (evsel->env->arch)

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anton Blanchard <anton@ozlabs.org>
Cc: Daniel Axtens <dja@axtens.net>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1467267262-4589-2-git-send-email-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-30 08:37:32 -03:00
Miklos Szeredi
5c672ab3f0 fuse: serialize dirops by default
Negotiate with userspace filesystems whether they support parallel readdir
and lookup.  Disable parallelism by default for fear of breaking fuse
filesystems.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 9902af79c0 ("parallel lookups: actual switch to rwsem")
Fixes: d9b3dbdcfd ("fuse: switch to ->iterate_shared()")
2016-06-30 13:10:49 +02:00
Wei Yongjun
cab1032743 drm/i915: Fix missing unlock on error in i915_ppgtt_info()
Add the missing unlock before return from function i915_ppgtt_info()
in the error handling case.

Fixes: 1d2ac403ae3b(drm: Protect dev->filelist with its own mutex)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465861320-26221-1-git-send-email-weiyj_lk@163.com
(cherry picked from commit b021248690)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-06-30 13:30:15 +03:00
Marek Vasut
f8608985f8 configfs: Remove ppos increment in configfs_write_bin_file
The simple_write_to_buffer() already increments the @ppos on success,
see fs/libfs.c simple_write_to_buffer() comment:

"
On success, the number of bytes written is returned and the offset @ppos
advanced by this number, or negative value is returned on error.
"

If the configfs_write_bin_file() is invoked with @count smaller than the
total length of the written binary file, it will be invoked multiple times.
Since configfs_write_bin_file() increments @ppos on success, after calling
simple_write_to_buffer(), the @ppos is incremented twice.

Subsequent invocation of configfs_write_bin_file() will result in the next
piece of data being written to the offset twice as long as the length of
the previous write, thus creating buffer with "holes" in it.

The simple testcase using DTO follows:
  $ mkdir /sys/kernel/config/device-tree/overlays/1
  $ dd bs=1 if=foo.dtbo of=/sys/kernel/config/device-tree/overlays/1/dtbo
Without this patch, the testcase will result in twice as big buffer in the
kernel, which is then passed to the cfs_overlay_item_dtbo_write() .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
2016-06-30 11:28:55 +02:00
Darren Stevens
bfa37087aa powerpc: Initialise pci_io_base as early as possible
Commit d6a9996e84 ("powerpc/mm: vmalloc abstraction in preparation for
radix") turned kernel memory and IO addresses from #defined constants to
variables initialised at runtime.

On PA6T (pasemi) systems the setup_arch() machine call initialises the
onboard PCI-e root-ports, and uses pci_io_base to do this, which is now
before its value has been set, resulting in a panic early in boot before
console IO is initialised.

Move the pci_io_base initialisation to the same place as vmalloc ranges
are set (hash__early_init_mmu()/radix__early_init_mmu()) - this is the
earliest possible place we can initialise it.

Fixes: d6a9996e84 ("powerpc/mm: vmalloc abstraction in preparation for radix")
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Darren Stevens <darren@stevens-zone.net>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[mpe: Add #ifdef CONFIG_PCI, massage change log slightly]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-06-30 16:52:29 +10:00
Steve Twiss
ba4a1c28a9 mfd: da9053: Fix compiler warning message for uninitialised variable
Fix compiler warning caused by an uninitialised variable inside
da9052_group_write() function. Defaulting the value to zero covers
the trivial case.

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-30 07:44:23 +01:00
Rhyland Klein
82d8eb40ba mfd: max77620: Fix FPS switch statements
When configuring FPS during probe, assuming a DT node is present for
FPS, the code can run into a problem with the switch statements in
max77620_config_fps() and max77620_get_fps_period_reg_value(). Namely,
in the case of chip->chip_id == MAX77620, it will set
fps_[mix|max]_period but then fall through to the default switch case
and return -EINVAL. Returning this from max77620_config_fps() will
cause probe to fail.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-30 07:44:23 +01:00
Lee Jones
9278e707f4 phy: phy-stih407-usb: Inform the reset framework that our reset line may be shared
On the STiH410 B2120 development board the ports on the Generic PHY
share their reset lines with each other.  New functionality in the
reset subsystems forces consumers to be explicit when requesting
shared/exclusive reset lines.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-30 07:44:22 +01:00
Lee Jones
002f17bc54 usb: dwc3: st: Inform the reset framework that our reset line may be shared
On the STiH410 B2120 development board the MiPHY28lp shares its reset
line with the Synopsys DWC3 SuperSpeed (SS) USB 3.0 Dual-Role-Device
(DRD).  New functionality in the reset subsystems forces consumers to
be explicit when requesting shared/exclusive reset lines.

Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-30 07:44:21 +01:00
Lee Jones
1959930462 usb: host: ehci-st: Inform the reset framework that our reset line may be shared
On the STiH410 B2120 development board the ST EHCI IP shares its reset
line with the OHCI IP.  New functionality in the reset subsystems forces
consumers to be explicit when requesting shared/exclusive reset lines.

Acked-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-30 07:44:21 +01:00
Lee Jones
f5ee3f2b5a usb: host: ohci-st: Inform the reset framework that our reset line may be shared
On the STiH410 B2120 development board the ST EHCI IP shares its reset
line with the OHCI IP.  New functionality in the reset subsystems forces
consumers to be explicit when requesting shared/exclusive reset lines.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-30 07:44:20 +01:00
Ingo Molnar
54d5f16e55 Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU changes from Paul E. McKenney:

 - Documentation updates.  Just some simple changes, no design-level
   additions.

 - Miscellaneous fixes.

 - Torture-test updates.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-30 08:27:41 +02:00
Greg Kroah-Hartman
3c9a6793bd Second round of new iio device support, features and cleanups in the 4.8 cycle
Firstly some contact detail updates:
 * NXP took over freescale. Update the mma8452 header to reflect this.
 * Martin Kepplinger email address change in mma8452 header.
 * Adriana Reus has changed email address. Update .mailmap.
 * Matt Ranostay has changed email address. Update .mailmap.
 
 New Device Support
 * max1363
   - add the missing i2c_device_ids for a couple of parts so they can actually
     be used.
 * ms5867
   - add device ids for ms5805 and ms5837 parts.
 
 New Features
 * ad5755
   - DT support.  This one was a bit controversial and under review for a long
     time.  Still no one could come up with a better solution.
 * stx104
   - add gpio support
 * ti-adc081c
   - Add ACPI device ID matching.
 
 Core changes
 * Refuse to register triggers with duplicate names.  There is no way to
   distinguish between them so this makes no sense.  A few drivers do not
   generate unique names for each instance of the device present.  We can't
   fix this without changing ABI so leave them and wait for someone to
   actually take the rare step of two identical accelerometers on the same
   board.
 * buffer-dma
   - use ARRAY_SIZE in a few appropriate locations.
 
 Tools
 * Fix the fact that the --trigger-num option in generic_buffer didn't allow
   0 which is perfectly valid in the ABI.
 
 Cleanups
 * as3935
   - improve error reporting.
   - remove redundant zeroing of a field in iio_priv.
 * gp2ap020a00f
   - use the iio_device_claim_*_mode helpers rather than open coding locking
   around mode changes.
 * isl29125
   - use the iio_device_claim_*_mode helpers rather than open coding locking.
 * lidar
   - use the iio_device_claim_*_mode helpers rather than open coding locking.
 * mma8452
   - more detail in devices supported description in comments (addresses and
   similar)
 * sca3000
   - add a missing error check.
 * tcs3414
   - use the iio_device_claim_*_mode helpers rather than open coding locking.
 * tcs3472
   - use the iio_device_claim_*_mode helpers rather than open coding locking.
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Merge tag 'iio-for-4.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second round of new iio device support, features and cleanups in the 4.8 cycle

Firstly some contact detail updates:
* NXP took over freescale. Update the mma8452 header to reflect this.
* Martin Kepplinger email address change in mma8452 header.
* Adriana Reus has changed email address. Update .mailmap.
* Matt Ranostay has changed email address. Update .mailmap.

New Device Support
* max1363
  - add the missing i2c_device_ids for a couple of parts so they can actually
    be used.
* ms5867
  - add device ids for ms5805 and ms5837 parts.

New Features
* ad5755
  - DT support.  This one was a bit controversial and under review for a long
    time.  Still no one could come up with a better solution.
* stx104
  - add gpio support
* ti-adc081c
  - Add ACPI device ID matching.

Core changes
* Refuse to register triggers with duplicate names.  There is no way to
  distinguish between them so this makes no sense.  A few drivers do not
  generate unique names for each instance of the device present.  We can't
  fix this without changing ABI so leave them and wait for someone to
  actually take the rare step of two identical accelerometers on the same
  board.
* buffer-dma
  - use ARRAY_SIZE in a few appropriate locations.

Tools
* Fix the fact that the --trigger-num option in generic_buffer didn't allow
  0 which is perfectly valid in the ABI.

Cleanups
* as3935
  - improve error reporting.
  - remove redundant zeroing of a field in iio_priv.
* gp2ap020a00f
  - use the iio_device_claim_*_mode helpers rather than open coding locking
  around mode changes.
* isl29125
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* lidar
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* mma8452
  - more detail in devices supported description in comments (addresses and
  similar)
* sca3000
  - add a missing error check.
* tcs3414
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* tcs3472
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
2016-06-29 15:35:01 -07:00
Linus Torvalds
e7bdea7750 NFS client bugfixes for Linux 4.7
Stable bugfixes:
 - Fix _cancel_empty_pagelist
 - Fix a double page unlock
 - Make nfs_atomic_open() call d_drop() on all ->open_context() errors.
 - Fix another OPEN_DOWNGRADE bug
 
 Other bugfixes:
 - Ensure we handle delegation errors in nfs4_proc_layoutget()
 - Layout stateids start out as being invalid
 - Add sparse lock annotations for pnfs_find_alloc_layout
 - Handle bad delegation stateids in nfs4_layoutget_handle_exception
 - Fix up O_DIRECT results
 - Fix potential use after free of state in nfs4_do_reclaim.
 - Mark the layout stateid invalid when all segments are removed
 - Don't let readdirplus revalidate an inode that was marked as stale
 - Fix potential race in nfs_fhget()
 - Fix an unused variable warning
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Merge tag 'nfs-for-4.7-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client bugfixes from Anna Schumaker:
 "Stable bugfixes:
   - Fix _cancel_empty_pagelist
   - Fix a double page unlock
   - Make nfs_atomic_open() call d_drop() on all ->open_context() errors.
   - Fix another OPEN_DOWNGRADE bug

  Other bugfixes:
   - Ensure we handle delegation errors in nfs4_proc_layoutget()
   - Layout stateids start out as being invalid
   - Add sparse lock annotations for pnfs_find_alloc_layout
   - Handle bad delegation stateids in nfs4_layoutget_handle_exception
   - Fix up O_DIRECT results
   - Fix potential use after free of state in nfs4_do_reclaim.
   - Mark the layout stateid invalid when all segments are removed
   - Don't let readdirplus revalidate an inode that was marked as stale
   - Fix potential race in nfs_fhget()
   - Fix an unused variable warning"

* tag 'nfs-for-4.7-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS: Fix another OPEN_DOWNGRADE bug
  make nfs_atomic_open() call d_drop() on all ->open_context() errors.
  NFS: Fix an unused variable warning
  NFS: Fix potential race in nfs_fhget()
  NFS: Don't let readdirplus revalidate an inode that was marked as stale
  NFSv4.1/pnfs: Mark the layout stateid invalid when all segments are removed
  NFS: Fix a double page unlock
  pnfs_nfs: fix _cancel_empty_pagelist
  nfs4: Fix potential use after free of state in nfs4_do_reclaim.
  NFS: Fix up O_DIRECT results
  NFS/pnfs: handle bad delegation stateids in nfs4_layoutget_handle_exception
  NFSv4.1/pnfs: Add sparse lock annotations for pnfs_find_alloc_layout
  NFSv4.1/pnfs: Layout stateids start out as being invalid
  NFSv4.1/pnfs: Ensure we handle delegation errors in nfs4_proc_layoutget()
2016-06-29 15:30:26 -07:00
Linus Torvalds
89a82a9218 Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit
Pull audit fixes from Paul Moore:
 "Two small patches to fix audit problems in 4.7-rcX: the first fixes a
  potential kref leak, the second removes some header file noise.

  The first is an important bug fix that really should go in before 4.7
  is released, the second is not critical, but falls into the very-nice-
  to-have category so I'm including in the pull request.

  Both patches are straightforward, self-contained, and pass our
  testsuite without problem"

* 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit:
  audit: move audit_get_tty to reduce scope and kabi changes
  audit: move calcs after alloc and check when logging set loginuid
2016-06-29 15:18:47 -07:00
Greg Kroah-Hartman
d839722131 Third set of fixes for IIO in the 4.7 cycle.
A couple of really old bugs and the results of Mark taking a close look at
 some nasty regulator handling.
 
 * ad7266
   - Fix broken regulator handling that won't play well with dummy regulators.
   - Correctly handle and optional regulator.
   - Fix probe deferral for the vref regulator.
 * kxsd9
   - Fix a wrong error check that leads to an inability to write or read
   the scale.
 * sca3000
   - Fix a wrong error check that leads to an inability to read back the
   sampling frequency.
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Merge tag 'iio-fixes-for-4.7c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Third set of fixes for IIO in the 4.7 cycle.

A couple of really old bugs and the results of Mark taking a close look at
some nasty regulator handling.

* ad7266
  - Fix broken regulator handling that won't play well with dummy regulators.
  - Correctly handle and optional regulator.
  - Fix probe deferral for the vref regulator.
* kxsd9
  - Fix a wrong error check that leads to an inability to write or read
  the scale.
* sca3000
  - Fix a wrong error check that leads to an inability to read back the
  sampling frequency.
2016-06-29 13:53:31 -07:00