Commit Graph

588742 Commits

Author SHA1 Message Date
Linus Torvalds
dc8a64ee1a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 - A proper fix for the locking issue in the dasd driver
 - Wire up the new preadv2 nad pwritev2 system calls
 - Add the mark_rodata_ro function and set DEBUG_RODATA=y
 - A few more bug fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: wire up preadv2/pwritev2 syscalls
  s390/pci: PCI function group 0 is valid for clp_query_pci_fn
  s390/crypto: provide correct file mode at device register.
  s390/mm: handle PTE-mapped tail pages in fast gup
  s390: add DEBUG_RODATA support
  s390: disable postinit-readonly for now
  s390/dasd: reorder lcu and device lock
  s390/cpum_sf: Fix cpu hotplug notifier transitions
  s390/cpum_cf: Fix missing cpu hotplug notifier transition
2016-04-01 07:15:54 -05:00
Takashi Iwai
4a07083ed6 ALSA: timer: Use mod_timer() for rearming the system timer
ALSA system timer backend stops the timer via del_timer() without sync
and leaves del_timer_sync() at the close instead.  This is because of
the restriction by the design of ALSA timer: namely, the stop callback
may be called from the timer handler, and calling the sync shall lead
to a hangup.  However, this also triggers a kernel BUG() when the
timer is rearmed immediately after stopping without sync:
 kernel BUG at kernel/time/timer.c:966!
 Call Trace:
  <IRQ>
  [<ffffffff8239c94e>] snd_timer_s_start+0x13e/0x1a0
  [<ffffffff8239e1f4>] snd_timer_interrupt+0x504/0xec0
  [<ffffffff8122fca0>] ? debug_check_no_locks_freed+0x290/0x290
  [<ffffffff8239ec64>] snd_timer_s_function+0xb4/0x120
  [<ffffffff81296b72>] call_timer_fn+0x162/0x520
  [<ffffffff81296add>] ? call_timer_fn+0xcd/0x520
  [<ffffffff8239ebb0>] ? snd_timer_interrupt+0xec0/0xec0
  ....

It's the place where add_timer() checks the pending timer.  It's clear
that this may happen after the immediate restart without sync in our
cases.

So, the workaround here is just to use mod_timer() instead of
add_timer().  This looks like a band-aid fix, but it's a right move,
as snd_timer_interrupt() takes care of the continuous rearm of timer.

Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-01 12:28:16 +02:00
Heiko Carstens
3358999a8e s390: wire up preadv2/pwritev2 syscalls
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-04-01 08:42:38 +02:00
Pierre Morel
aa624886b6 s390/pci: PCI function group 0 is valid for clp_query_pci_fn
The PCI function group 0 is a valid function group,
it is wrong to reject it.

Let's accept PCI function group 0.

Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-04-01 08:42:35 +02:00
Masami Hiramatsu
353def9460 MAINTAINERS: Update my email address
Since I moved to Linaro, this old address doesn't work anymore.
I'll use my kernel.org account for upstreaming.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@redhat.com
Cc: rostedt@goodmis.org
Link: http://lkml.kernel.org/r/1459431203-7438-1-git-send-email-mhiramat@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-01 08:35:51 +02:00
Hui Wang
e549d190f7 ALSA: hda - fix front mic problem for a HP desktop
The front mic jack (pink color) can't detect any plug or unplug. After
applying this fix, both detecting function and recording function
work well.

BugLink: https://bugs.launchpad.net/bugs/1564712
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-01 07:36:39 +02:00
Daniel Vetter
72b9ff0612 drm/udl: Use unlocked gem unreferencing
For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with

commit ef4c6270bf
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Oct 15 09:36:25 2015 +0200

    drm/gem: Check locking in drm_gem_object_unreference

Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-01 13:22:33 +10:00
Rob Clark
7779c5e23c drm/dp: move hw_mutex up the call stack
1) don't let other threads trying to bang on aux channel interrupt the
defer timeout/logic
2) don't let other threads interrupt the i2c over aux logic

Technically, according to people who actually have the DP spec, this
should not be required.  In practice, it makes some troublesome Dell
monitor (and perhaps others) work, so probably a case of "It's compliant
if it works with windows" on the hw vendor's part..

v2: rebased to come before DPCD/AUX logging patch for easier backport
to stable branches.

Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1274157
Cc: stable@vger.kernel.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-01 13:17:36 +10:00
Dave Airlie
5456248d66 Merge branch 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip into drm-fixes
bunch of rockchip fixes.

* 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip:
  drm/rockchip: dw_hdmi: Don't call platform_set_drvdata()
  drm/rockchip: vop: Fix vop crtc cleanup
  drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path
  drm/rockchip: vop: Disable planes when disabling CRTC
  drm/rockchip: vop: Don't reject empty modesets
  drm/rockchip: cancel pending vblanks on close
  drm/rockchip: vop: fix crtc size in plane check
2016-04-01 13:14:24 +10:00
Dave Airlie
90516d89cd Merge branch 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux into drm-fixes
two minor msm fixes.

* 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: fix typo in the !COMMON_CLK case
  drm/msm: fix bug after preclose removal
2016-04-01 13:14:10 +10:00
Dave Airlie
2f4fcb3eaf Merge branch 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Just a few fixes for 4.6 this week:
- Add some SI DPM quirks
- Improve the ACP Kconfig text
- Additional BO pinning checks

* 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: Don't move pinned BOs
  drm/radeon: Don't move pinned BOs
  drm/radeon: add a dpm quirk for all R7 370 parts
  drm/radeon: add another R7 370 quirk
  drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
  drm/amd: Beef up ACP Kconfig menu text
2016-04-01 13:13:34 +10:00
Daniele Palmas
79f4223257 net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card
Telit LE910 V2 is a mobile broadband card with no ARP capabilities:
the patch makes this device to use wwan_noarp_info struct

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Reviewed-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 17:15:35 -04:00
Nicolas Dichtel
c57c7a95da rtnl: fix msg size calculation in if_nlmsg_size()
Size of the attribute IFLA_PHYS_PORT_NAME was missing.

Fixes: db24a9044e ("net: add support for phys_port_name")
CC: David Ahern <dsahern@gmail.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 16:49:54 -04:00
Fabio Estevam
32867fcc0e fec: Do not access unexisting register in Coldfire
Commit 55cd48c821 ("net: fec: stop the "rcv is not +last, " error
messages") introduces a write to a register that does not exist in
Coldfire.

Move the FEC_FTRL register access inside the FEC_QUIRK_HAS_RACC 'if' block,
so that we guarantee it will not be used on Coldfire CPUs.

Reported-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 16:04:05 -04:00
Jisheng Zhang
9bd9ddb7f8 net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
The mvneta is also used in some Marvell berlin family SoCs which may
have 64bytes cacheline size. Replace the MVNETA_CPU_D_CACHE_LINE_SIZE
usage with L1_CACHE_BYTES.

And since dma_alloc_coherent() is always cacheline size aligned, so
remove the align checks.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 15:15:01 -04:00
Jisheng Zhang
b7854efce2 net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
The mvpp2 ip maybe used in SoCs which may have have 64bytes cacheline
size. Replace the MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES.

And since dma_alloc_coherent() is always cacheline size aligned, so
remove the align checks.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 15:15:01 -04:00
Patrick Uiterwijk
13a7ebb38a net: dsa: mv88e6xxx: Clear the PDOWN bit on setup
Some of the vendor-specific bootloaders set up this part
of the initialization for us, so this was never added.
However, since upstream bootloaders don't initialize the
chip specifically, they leave the fiber MII's PDOWN flag
set, which means that the CPU port doesn't connect.

This patch checks whether this flag has been clear prior
by something else, and if not make us clear it.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 15:12:57 -04:00
Patrick Uiterwijk
75baacf00f net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write}
Add versions of the phy_page_read and _write functions to
be used in a context where the SMI mutex is held.

Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 15:12:57 -04:00
Vladis Dronov
836b34a935 ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call
create_fixed_stream_quirk(), snd_usb_parse_audio_interface() and
create_uaxx_quirk() functions allocate the audioformat object by themselves
and free it upon error before returning. However, once the object is linked
to a stream, it's freed again in snd_usb_audio_pcm_free(), thus it'll be
double-freed, eventually resulting in a memory corruption.

This patch fixes these failures in the error paths by unlinking the audioformat
object before freeing it.

Based on a patch by Takashi Iwai <tiwai@suse.de>

[Note for stable backports:
 this patch requires the commit 902eb7fd1e ('ALSA: usb-audio: Minor
 code cleanup in create_fixed_stream_quirk()')]

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1283358
Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: <stable@vger.kernel.org> # see the note above
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 18:07:31 +02:00
Martin Brandenburg
878dfd3210 orangefs: minimum userspace version is 2.9.3
Version 2.9.4 isn't even released yet.

Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-03-31 12:06:00 -04:00
Martin Brandenburg
641bb3246d orangefs: don't put readdir slot twice
This was quite an oversight. After a readdir, the module could not be
unloaded, the number of slots is wrong, and memory near the slot bitmap
is possibly corrupt. Oops.

Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-03-31 12:06:00 -04:00
David S. Miller
4833a0096a Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2016-03-29

This series contains fixes to ixgbe and ixgbevf.

Tushar fixes an issue which was introduced with an earlier commit, where
hardware register RAR0 default MAC address does not get set properly.

Alex fixes two issues, first being the VXLAN port number should be stored
in network order instead of in host order.  The second fix corrects the ATR
code to handle IPv6 extension headers.  The issue was ATR code was assuming
that it would be able to use tcp_hdr for every TCP frame that came through,
but that is not the case, which resulted in bad filters being setup.

Mark fixes a use of usleep_range() to udelay() in the case where a lock
is being held.

Stefan fixes the offline self tests where ndo_stop() should be used instead
of ndo_close(), which causes IFF_UP to be cleared and interface routes get
removed.

Emil fixes the error case where we need to return an error when a MAC
address change is rejected by the PF.  This helps prevent the user from
modifying the MAC address when the operation is not permitted.

Sridhar provides three fixes for ixgbe, all dealing with traffic class
offload handling.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 11:40:16 -04:00
Takashi Sakamoto
86c8dd7f4d ALSA: firewire-digi00x: delayed registration of sound card
When some digi00x units are connected sequentially, userspace
applications are involved at bus-reset state on IEEE 1394 bus. In the
state, any communications can be canceled. Therefore, sound card
registration should be delayed till the bus gets calm.

This commit achieves it.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 15:36:20 +02:00
Takashi Sakamoto
6c29230e2a ALSA: oxfw: delayed registration of sound card
Some oxfw based units tends to fail asynchronous communication when
IEEE 1394 bus is under bus-reset state. When registering sound card
instance at unit probe callback, userspace applications can be involved
to the state.

This commit postpones the registration till the bus is calm.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 15:36:19 +02:00
Takashi Sakamoto
7d3c1d5901 ALSA: fireworks: delayed registration of sound card
When some fireworks units are connected sequentially, userspace
applications are involved at bus-reset state on IEEE 1394 bus. In the
state, any communications can be canceled. Therefore, sound card
registration should be delayed till the bus gets calm.

This commit achieves it.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 15:36:19 +02:00
Takashi Sakamoto
04a2c73c97 ALSA: bebob: delayed registration of sound card
Some bebob based units tends to fail asynchronous communication when
IEEE 1394 bus is under bus-reset state. When registering sound card
instance at unit probe callback, userspace applications can be involved
to the state.

This commit postpones the registration till the bus is calm.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 15:36:18 +02:00
Takashi Sakamoto
923f92ebb4 ALSA: firewire-lib: add new function to schedule a work for sound card registration
In former commit, ALSA dice driver postpone sound card registration after
IEEE 1394 bus is calm. This idea has advantages for the other drivers.

This commit adds a helper function for it to firewire-lib module. The
function is really for the specific purpose. Callers should initialize
delayed work structure with callback function.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 15:36:18 +02:00
Takashi Sakamoto
0eced45ca6 ALSA: dice: simplify unit probe processing
In former commit, ALSA dice driver doesn't generate kernel warnings
when unplugging units before initializing stream data.

This commit moves the initialization to delayed registration of sound
card, to simplify unit probe processing.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 15:36:17 +02:00
Takashi Sakamoto
44c376b959 ALSA: firewire-lib: suppress kernel warnings when releasing uninitialized stream data
When any of AMDTP stream data are not initialized and private data is
going to be released, WARN_ON() in amdtp_stream_destroy() is hit and
dump messages. This may take users irritated.

This commit fixes the bug to skip releasing when it's not initialized.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 15:36:17 +02:00
Alfredo Alvarez Fernandez
39e2e173fb locking/lockdep: Print chain_key collision information
A sequence of pairs [class_idx -> corresponding chain_key iteration]
is printed for both the current held_lock chain and the cached chain.

That exposes the two different class_idx sequences that led to that
particular hash value.

This helps with debugging hash chain collision reports.

Signed-off-by: Alfredo Alvarez Fernandez <alfredoalvarezfernandez@gmail.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-fsdevel@vger.kernel.org
Cc: sedat.dilek@gmail.com
Cc: tytso@mit.edu
Link: http://lkml.kernel.org/r/1459357416-19190-1-git-send-email-alfredoalvarezernandez@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-31 15:03:58 +02:00
Maruthi Srinivas Bayyavarapu
8eb22214b7 ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps
This commit fixes garbled audio on Polaris-10/11 variants

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-31 14:59:20 +02:00
Linus Torvalds
c05c2ec96b Merge branch 'parisc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
 "Fix seccomp filter support and SIGSYS signals on compat kernel.

  Both patches are tagged for v4.5 stable kernel"

* 'parisc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix and enable seccomp filter support
  parisc: Fix SIGSYS signals in compat case
2016-03-31 07:55:14 -05:00
Linus Torvalds
e9dcfaff01 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fix from Al Viro.

Automount handling was broken by commit e3c1392808 ("namei: massage
lookup_slow() to be usable by lookup_one_len_unlocked()") moving the
test for negative dentry too early.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix the braino in "namei: massage lookup_slow() to be usable by lookup_one_len_unlocked()"
2016-03-31 07:19:39 -05:00
Linus Torvalds
ca4572042e GPIO fixes for the v4.6 series:
- Prevent NULL dereference in the Xgene driver
 - Fix an uninitialized spinlock in the menz127 driver
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Merge tag 'gpio-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Here are two GPIO fixes for the v4.6 series, both in drivers:

   - Prevent NULL dereference in the Xgene driver
   - Fix an uninitialized spinlock in the menz127 driver"

* tag 'gpio-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: xgene: Prevent NULL pointer dereference
  gpio: menz127: Drop lock field from struct men_z127_gpio
2016-03-31 07:13:56 -05:00
Linus Torvalds
c5bce408e4 Merge branch 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull nvdimm mcsafe_memcpy use from Dan Williams:
 "Now that mcsafe_memcpy() has landed, and the return value was been
  clarified in commit cbf8b5a2b6 ("x86/mm, x86/mce: Fix return
  type/value for memcpy_mcsafe()"), let's hook up its primary usage in
  the pmem driver.

  The compilation problems from the initial posting have been fixed,
  this has appeared in a -next release with no reported issues, and it
  picked up an ack from Ingo.  There is no pressing need to merge this
  in 4.6- rc2.  However, if we wait until 4.7 the new memcpy_mcsafe()
  capability will ship without a user in 4.6-final"

* 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  x86, pmem: use memcpy_mcsafe() for memcpy_from_pmem()
2016-03-31 06:56:50 -05:00
Helge Deller
910cd32e55 parisc: Fix and enable seccomp filter support
The seccomp filter support requires careful handling of task registers.  This
includes reloading of the return value (%r28) and proper syscall exit if
secure_computing() returned -1.

Additionally we need to sign-extend the syscall number from signed 32bit to
signed 64bit in do_syscall_trace_enter() since the ptrace interface only allows
storing 32bit values in compat mode.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.5
2016-03-31 12:28:38 +02:00
Helge Deller
4f4acc9472 parisc: Fix SIGSYS signals in compat case
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.5
2016-03-31 12:28:37 +02:00
Peter Zijlstra
85dc600263 perf/x86/amd/ibs: Fix pmu::stop() nesting
Patch 5a50f52917 ("perf/x86/ibs: Fix race with IBS_STARTING state")
closed a big hole while opening another, smaller hole.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
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: 5a50f52917 ("perf/x86/ibs: Fix race with IBS_STARTING state")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-31 09:54:08 +02:00
Alexander Shishkin
201c2f85bd perf/core: Don't leak event in the syscall error path
In the error path, event_file not being NULL is used to determine
whether the event itself still needs to be free'd, so fix it up to
avoid leaking.

Reported-by: Leon Yu <chianglungyu@gmail.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
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: 130056275a ("perf: Do not double free")
Link: http://lkml.kernel.org/r/87twk06yxp.fsf@ashishki-desk.ger.corp.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-31 09:54:07 +02:00
Peter Zijlstra
8fdc65391c perf/core: Fix time tracking bug with multiplexing
Stephane reported that commit:

  3cbaa59069 ("perf: Fix ctx time tracking by introducing EVENT_TIME")

introduced a regression wrt. time tracking, as easily observed by:

> This patch introduce a bug in the time tracking of events when
> multiplexing is used.
>
> The issue is easily reproducible with the following perf run:
>
>  $ perf stat -a -C 0 -e branches,branches,branches,branches,branches,branches -I 1000
>      1.000730239            652,394      branches   (66.41%)
>      1.000730239            597,809      branches   (66.41%)
>      1.000730239            593,870      branches   (66.63%)
>      1.000730239            651,440      branches   (67.03%)
>      1.000730239            656,725      branches   (66.96%)
>      1.000730239      <not counted>      branches
>
> One branches event is shown as not having run. Yet, with
> multiplexing, all events should run especially with a 1s (-I 1000)
> interval. The delta for time_running comes out to 0. Yet, the event
> has run because the kernel is actually multiplexing the events. The
> problem is that the time tracking is the kernel and especially in
> ctx_sched_out() is wrong now.
>
> The problem is that in case that the kernel enters ctx_sched_out() with the
> following state:
>    ctx->is_active=0x7 event_type=0x1
>    Call Trace:
>     [<ffffffff813ddd41>] dump_stack+0x63/0x82
>     [<ffffffff81182bdc>] ctx_sched_out+0x2bc/0x2d0
>     [<ffffffff81183896>] perf_mux_hrtimer_handler+0xf6/0x2c0
>     [<ffffffff811837a0>] ? __perf_install_in_context+0x130/0x130
>     [<ffffffff810f5818>] __hrtimer_run_queues+0xf8/0x2f0
>     [<ffffffff810f6097>] hrtimer_interrupt+0xb7/0x1d0
>     [<ffffffff810509a8>] local_apic_timer_interrupt+0x38/0x60
>     [<ffffffff8175ca9d>] smp_apic_timer_interrupt+0x3d/0x50
>     [<ffffffff8175ac7c>] apic_timer_interrupt+0x8c/0xa0
>
> In that case, the test:
>       if (is_active & EVENT_TIME)
>
> will be false and the time will not be updated. Time must always be updated on
> sched out.

Fix this by always updating time if EVENT_TIME was set, as opposed to
only updating time when EVENT_TIME changed.

Reported-by: Stephane Eranian <eranian@google.com>
Tested-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: kan.liang@intel.com
Cc: namhyung@kernel.org
Fixes: 3cbaa59069 ("perf: Fix ctx time tracking by introducing EVENT_TIME")
Link: http://lkml.kernel.org/r/20160329072644.GB3408@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-31 09:54:06 +02:00
Ingo Molnar
c932cf07dd perf/urgent fixes:
- Fix determination of a callchain node's childlessness in
   the top/report TUI, which was preventing navigating some
   callchains, --stdio unnaffected (Andres Freund)
 
 - Fix jitdump's genelf assumption that PowerPC is big endian
   only (Anton Blanchard)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo-20160330' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

 - Fix determination of a callchain node's childlessness in
   the top/report TUI, which was preventing navigating some
   callchains, --stdio unnaffected (Andres Freund)

 - Fix jitdump's genelf assumption that PowerPC is big endian
   only (Anton Blanchard)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-31 08:27:35 +02:00
Al Viro
7500c38ac3 fix the braino in "namei: massage lookup_slow() to be usable by lookup_one_len_unlocked()"
We should try to trigger automount *before* bailing out on negative dentry.

Reported-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Reported-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Reported-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-31 00:23:05 -04:00
Christoph Hellwig
839559e106 target: add a new add_wwn_groups fabrics method
We need to have the WWN fully initialized before addig default groups to it,
so add a new method to add these groups after the WWN has been initialized.
Also remove the default groups in the core while we're at it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-30 20:06:44 -07:00
Christoph Hellwig
e6e202edf0 target: initialize the nacl base CIT begfore init_nodeacl
The iSCSI targets wants to add a default group, for which we need to
have the list of default groups initialized previously.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-30 20:06:43 -07:00
Christoph Hellwig
ce7043fd90 target: remove ->fabric_cleanup_nodeacl
Instead we can clean up the list of default ACLs in core code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-30 20:06:43 -07:00
Sagi Grimberg
572a143489 iser-target: Use ib_drain_qp
Now the rdma core offers a QP draining service in v4.6-rc1,
use it instead of our own.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-30 20:05:15 -07:00
Linus Torvalds
1e6d88ccf4 nios2 fix for v4.6-rc2
nios2: Replace fdt_translate_address with of_flat_dt_translate_address
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Merge tag 'nios2-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2

Pull nios2 fix from Ley Foon Tan:
 "Replace fdt_translate_address with of_flat_dt_translate_address"

Fixes a build failure.

* tag 'nios2-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  nios2: Replace fdt_translate_address with of_flat_dt_translate_address
2016-03-30 20:40:42 -05:00
Guenter Roeck
8fe889274c nios2: Replace fdt_translate_address with of_flat_dt_translate_address
nios2 builds fail with the following build error.

arch/nios2/kernel/prom.c: In function 'early_init_dt_scan_serial':
arch/nios2/kernel/prom.c💯2: error:
	implicit declaration of function 'fdt_translate_address'

Commit c90fe9c039 ("of: earlycon: Move address translation to
of_setup_earlycon()") replaced fdt_translate_address() with
of_flat_dt_translate_address() but missed updating the nios2 code.

Fixes: c90fe9c039 ("of: earlycon: Move address translation to of_setup_earlycon()")
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Ley Foon Tan <lftan@altera.com>
2016-03-31 08:15:45 +08:00
Daniel Borkmann
c0e760c9c6 bpf: make padding in bpf_tunnel_key explicit
Make the 2 byte padding in struct bpf_tunnel_key between tunnel_ttl
and tunnel_label members explicit. No issue has been observed, and
gcc/llvm does padding for the old struct already, where tunnel_label
was not yet present, so the current code works, but since it's part
of uapi, make sure we don't introduce holes in structs.

Therefore, add tunnel_ext that we can use generically in future
(f.e. to flag OAM messages for backends, etc). Also add the offset
to the compat tests to be sure should some compilers not padd the
tail of the old version of bpf_tunnel_key.

Fixes: 4018ab1875 ("bpf: support flow label for bpf_skb_{set, get}_tunnel_key")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-30 19:01:33 -04:00
Eric Dumazet
2d4212261f ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates
IPv6 counters updates use a different macro than IPv4.

Fixes: 36cbb2452c ("udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicasts")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Rick Jones <rick.jones2@hp.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-30 19:01:33 -04:00