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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: More updates for v3.11
Some more fixes and enhancements, and also a bunch of refectoring for
AC'97 support which enables more than one AC'97 controller driver to be
built in.
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Add define for: HSDRV, HFDAC, HFPGA and HFDRV enable bits
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Currently we can only have a single platform built in with AC'97 support
due to the use of a global variable to provide the bus operations. Fix
this by making that variable a pointer and having the bus drivers set the
operations prior to registering.
This is not a particularly good or nice approach but it avoids blocking
multiplatform and a real fix involves fixing the fairly deep problems
with AC'97 support - we should be converting it to a real bus.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"Several fixes for bugs caught while looking through f_pos (ab)users"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
aout32 coredump compat fix
splice: don't pass the address of ->f_pos to methods
mconsole: we'd better initialize pos before passing it to vfs_read()...
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
- Fix for a regression causing a failure to turn on some devices on
some systems during initialization introduced by a recent revert of
an ACPI PM change that broke something else. Fortunately, we know
exactly what devices are affected, so we can add a fix just for them
leaving everyone else alone.
- ACPI power resources initialization fix preventing a NULL pointer
from being dereferenced in the acpi_add_power_resource() error code
path.
- ACPI dock station driver fix that adds missing locking to
write_undock().
- ACPI resources allocation fix changing the scope of an old workaround
so that it doesn't affect systems that aren't actually buggy. This
was reported a couple of days ago to fix DMA problems on some new
platforms so we need it in -stable. From Mika Westerberg.
* tag 'acpi-3.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / LPSS: Power up LPSS devices during enumeration
ACPI / PM: Fix error code path for power resources initialization
ACPI / dock: Take ACPI scan lock in write_undock()
ACPI / resources: call acpi_get_override_irq() only for legacy IRQ resources
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Commit 7cd8407 (ACPI / PM: Do not execute _PS0 for devices without
_PSC during initialization) introduced a regression on some systems
with Intel Lynxpoint Low-Power Subsystem (LPSS) where some devices
need to be powered up during initialization, but their device objects
in the ACPI namespace have _PS0 and _PS3 only (without _PSC or power
resources).
To work around this problem, make the ACPI LPSS driver power up
devices it knows about by using a new helper function
acpi_device_fix_up_power() that does all of the necessary
sanity checks and calls acpi_dev_pm_explicit_set() to put the
device into D0.
Reported-and-tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Two smaller fixes - plus a context tracking tracing fix that is a bit
bigger"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tracing/context-tracking: Add preempt_schedule_context() for tracing
sched: Fix clear NOHZ_BALANCE_KICK
sched/x86: Construct all sibling maps if smt
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Dave Jones hit the following bug report:
===============================
[ INFO: suspicious RCU usage. ]
3.10.0-rc2+ #1 Not tainted
-------------------------------
include/linux/rcupdate.h:771 rcu_read_lock() used illegally while idle!
other info that might help us debug this:
RCU used illegally from idle CPU! rcu_scheduler_active = 1, debug_locks = 0
RCU used illegally from extended quiescent state!
2 locks held by cc1/63645:
#0: (&rq->lock){-.-.-.}, at: [<ffffffff816b39fd>] __schedule+0xed/0x9b0
#1: (rcu_read_lock){.+.+..}, at: [<ffffffff8109d645>] cpuacct_charge+0x5/0x1f0
CPU: 1 PID: 63645 Comm: cc1 Not tainted 3.10.0-rc2+ #1 [loadavg: 40.57 27.55 13.39 25/277 64369]
Hardware name: Gigabyte Technology Co., Ltd. GA-MA78GM-S2H/GA-MA78GM-S2H, BIOS F12a 04/23/2010
0000000000000000 ffff88010f78fcf8 ffffffff816ae383 ffff88010f78fd28
ffffffff810b698d ffff88011c092548 000000000023d073 ffff88011c092500
0000000000000001 ffff88010f78fd60 ffffffff8109d7c5 ffffffff8109d645
Call Trace:
[<ffffffff816ae383>] dump_stack+0x19/0x1b
[<ffffffff810b698d>] lockdep_rcu_suspicious+0xfd/0x130
[<ffffffff8109d7c5>] cpuacct_charge+0x185/0x1f0
[<ffffffff8109d645>] ? cpuacct_charge+0x5/0x1f0
[<ffffffff8108dffc>] update_curr+0xec/0x240
[<ffffffff8108f528>] put_prev_task_fair+0x228/0x480
[<ffffffff816b3a71>] __schedule+0x161/0x9b0
[<ffffffff816b4721>] preempt_schedule+0x51/0x80
[<ffffffff816b4800>] ? __cond_resched_softirq+0x60/0x60
[<ffffffff816b6824>] ? retint_careful+0x12/0x2e
[<ffffffff810ff3cc>] ftrace_ops_control_func+0x1dc/0x210
[<ffffffff816be280>] ftrace_call+0x5/0x2f
[<ffffffff816b681d>] ? retint_careful+0xb/0x2e
[<ffffffff816b4805>] ? schedule_user+0x5/0x70
[<ffffffff816b4805>] ? schedule_user+0x5/0x70
[<ffffffff816b6824>] ? retint_careful+0x12/0x2e
------------[ cut here ]------------
What happened was that the function tracer traced the schedule_user() code
that tells RCU that the system is coming back from userspace, and to
add the CPU back to the RCU monitoring.
Because the function tracer does a preempt_disable/enable_notrace() calls
the preempt_enable_notrace() checks the NEED_RESCHED flag. If it is set,
then preempt_schedule() is called. But this is called before the user_exit()
function can inform the kernel that the CPU is no longer in user mode and
needs to be accounted for by RCU.
The fix is to create a new preempt_schedule_context() that checks if
the kernel is still in user mode and if so to switch it to kernel mode
before calling schedule. It also switches back to user mode coming back
from schedule in need be.
The only user of this currently is the preempt_enable_notrace(), which is
only used by the tracing subsystem.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1369423420.6828.226.camel@gandalf.local.home
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Four fixes. The mmap ones are unfortunately larger than desired -
fuzzing uncovered bugs that needed perf context life time management
changes to fix properly"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Fix broken PEBS-LL support on SNB-EP/IVB-EP
perf: Fix mmap() accounting hole
perf: Fix perf mmap bugs
kprobes: Fix to free gone and unused optprobes
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Vince reported a problem found by his perf specific trinity
fuzzer.
Al noticed 2 problems with perf's mmap():
- it has issues against fork() since we use vma->vm_mm for accounting.
- it has an rb refcount leak on double mmap().
We fix the issues against fork() by using VM_DONTCOPY; I don't
think there's code out there that uses this; we didn't hear
about weird accounting problems/crashes. If we do need this to
work, the previously proposed VM_PINNED could make this work.
Aside from the rb reference leak spotted by Al, Vince's example
prog was indeed doing a double mmap() through the use of
perf_event_set_output().
This exposes another problem, since we now have 2 events with
one buffer, the accounting gets screwy because we account per
event. Fix this by making the buffer responsible for its own
accounting.
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Link: http://lkml.kernel.org/r/20130528085548.GA12193@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
- Fix inconstinant clock usage in virtual time accounting
- Fix a build error in KVM caused by the NOHZ work
- Remove a pointless timekeeping duty assignment which breaks NOHZ
- Use a proper notifier return value to avoid random behaviour
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick: Remove useless timekeeping duty attribution to broadcast source
nohz: Fix notifier return val that enforce timekeeping
kvm: Move guest entry/exit APIs to context_tracking
vtime: Use consistent clocks among nohz accounting
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The kvm_host.h header file doesn't handle well
inclusion when archs don't support KVM.
This results in build crashes for such archs when they
want to implement context tracking because this subsystem
includes kvm_host.h in order to implement the
guest_enter/exit APIs but it doesn't handle KVM off case.
To fix this, move the guest_enter()/guest_exit()
declarations and generic implementation to the context
tracking headers. These generic APIs actually belong to
this subsystem, besides other domains boundary tracking
like user_enter() et al.
KVM now properly becomes a user of this library, not the
other buggy way around.
Reported-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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While computing the cputime delta of dynticks CPUs,
we are mixing up clocks of differents natures:
* local_clock() which takes care of unstable clock
sources and fix these if needed.
* sched_clock() which is the weaker version of
local_clock(). It doesn't compute any fixup in case
of unstable source.
If the clock source is stable, those two clocks are the
same and we can safely compute the difference against
two random points.
Otherwise it results in random deltas as sched_clock()
can randomly drift away, back or forward, from local_clock().
As a consequence, some strange behaviour with unstable tsc
has been observed such as non progressing constant zero cputime.
(The 'top' command showing no load).
Fix this by only using local_clock(), or its irq safe/remote
equivalent, in vtime code.
Reported-by: Mike Galbraith <efault@gmx.de>
Suggested-by: Mike Galbraith <efault@gmx.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Mike Galbraith <efault@gmx.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"Series of fixes for 3.10. There are some usual driver fixes (mostly
on s5p/exynos playform drivers), plus some fixes at V4L2 core"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (40 commits)
[media] soc_camera: error dev remove and v4l2 call
[media] sh_veu: fix the buffer size calculation
[media] sh_veu: keep power supply until the m2m context is released
[media] sh_veu: invoke v4l2_m2m_job_finish() even if a job has been aborted
[media] v4l2-ioctl: don't print the clips list
[media] v4l2-ctrls: V4L2_CTRL_CLASS_FM_RX controls are also valid radio controls
[media] cx88: fix NULL pointer dereference
[media] DocBook/media/v4l: update version number
[media] exynos4-is: Remove "sysreg" clock handling
[media] exynos4-is: Fix reported colorspace at FIMC-IS-ISP subdev
[media] exynos4-is: Ensure fimc-is clocks are not enabled until properly configured
[media] exynos4-is: Prevent NULL pointer dereference when firmware isn't loaded
[media] s5p-mfc: Add NULL check for allocated buffer
[media] s5p-mfc: added missing end-of-lines in debug messages
[media] s5p-mfc: v4l2 controls setup routine moved to initialization code
[media] s5p-mfc: separate encoder parameters for h264 and mpeg4
[media] s5p-mfc: Remove special clock usage in driver
[media] s5p-mfc: Remove unused s5p_mfc_get_decoded_status_v6() function
[media] v4l2: mem2mem: save irq flags correctly
[media] coda: v4l2-compliance fix: add VIDIOC_CREATE_BUFS support
...
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Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The char arrays with size 44 are for the name string of
snd_ctl_elem_id. Define the constant and replace the raw numbers with
it for clarifying better.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Introduce a new helper function, snd_ctl_sync_vmaster(), which updates
the slave put callbacks forcibly as well as calling the hook. This
will be used in the upcoming patch in HD-audio codec driver for
toggling the mute in vmaster slaves.
Along with the new function, the old snd_ctl_sync_vmaster_hook() is
replaced as a macro calling with the argument hook_only=true.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v3.11
Not a big release subsystem wise, the main changes have been some nice
improvements on the driver side:
- Lots of cleanups and fixes for Blackfin, SGTL5000 and UX500.
- Generalisation of the Bluetooth and HDMI stub drivers.
- New CODEC drivers for SSM2518 and RT5640.
- New machine driver for Tegra CPUs with RT5640.
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For systems which do not have a jack detection feature allow some debounce
to be specified before we perform accessory identification, improving
robustness without impacting button detection responsiveness.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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On WM8958 and WM1811A separate control of the LRCLK inversion bit is
available for the DAC and ADC LRCLKs which for compatibility reasons is
done in a new register bit.
Since writes to each scheme have no effect on parts using the other just
always write to both for simplicity.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Tested-by: Samreen Nilofer <samreen.nilofer@intel.com>
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This patch adds a ASoC CODEC driver for the SSM2516. The SSM2516 is a stereo
Class-D audio amplifier with an I2S interface for audio in and a built-in
dynamic range control processor.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This patch adds the ALC5640 codec driver.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Since commit 85762e71 ("ASoC: dapm: Implement mixer control sharing") the
long_name field of the snd_soc_dapm_path struct is unused. All of the name
handling now happens entirely in dapm_create_or_share_mixmux_kcontrol(). So we
can remove the long_name field from the snd_soc_dapm_path struct.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Some devices may benefit from being able to start some parts of the widget
power up/down sequence earlier on in the sequence than the point at which
the final power state is committed. Support these by providing events which
are called before any power state changes are done.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
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Certain use cases may require specific DRE settings so expose the
necessary registers.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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These registers have been documented since the driver was originally
submitted so expose them.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The bit in the register enables MICBIAS fast startup when clear not when
set. This patch changes the name of this pdata option to soft_start to
better match the functionality. We rename rather than invert the
handling to keep the same default functionality, which is fast start
active.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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When the device is used with an external DCVDD supply instead of the
internal LDO1 then an extra step is required when suspending and resuming
the device.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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* for-linus: (635 commits)
ALSA: usb-audio: Fix invalid volume resolution for Logitech HD Webcam c310
ALSA: hda - Fix pin configurations for MacBook Air 4,2
ALSA: usb-audio: work around Android accessory firmware bug
ALSA: hda - Headset mic support for three more machines
Linux 3.10-rc6
smp.h: Use local_irq_{save,restore}() in !SMP version of on_each_cpu().
powerpc: Fix missing/delayed calls to irq_work
powerpc: Fix emulation of illegal instructions on PowerNV platform
powerpc: Fix stack overflow crash in resume_kernel when ftracing
snd_pcm_link(): fix a leak...
use can_lookup() instead of direct checks of ->i_op->lookup
move exit_task_namespaces() outside of exit_notify()
fput: task_work_add() can fail if the caller has passed exit_task_work()
xfs: don't shutdown log recovery on validation errors
xfs: ensure btree root split sets blkno correctly
xfs: fix implicit padding in directory and attr CRC formats
xfs: don't emit v5 superblock warnings on write
mei: me: clear interrupts on the resume path
mei: nfc: fix nfc device freeing
mei: init: Flush scheduled work before resetting the device
...
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Pull networking fixes from David Miller:
1) Fix RTNL locking in batman-adv, from Matthias Schiffer.
2) Don't allow non-passthrough macvlan devices to set NOPROMISC via
netlink, otherwise we can end up with corrupted promisc counter
values on the device. From Michael S Tsirkin.
3) Fix stmmac driver build with debugging defines enabled, from Dinh
Nguyen.
4) Make sure name string we give in socket address in AF_PACKET is NULL
terminated, from Daniel Borkmann.
5) Fix leaking of two uninitialized bytes of memory to userspace in
l2tp, from Guillaume Nault.
6) Clear IPCB(skb) before tunneling otherwise we touch dangling IP
options state and crash. From Saurabh Mohan.
7) Fix suspend/resume for davinci_mdio by using suspend_late and
resume_early. From Mugunthan V N.
8) Don't tag ip_tunnel_init_net and ip_tunnel_delete_net with
__net_{init,exit}, they can be called outside of those contexts.
From Eric Dumazet.
9) Fix RX length error in sh_eth driver, from Yoshihiro Shimoda.
10) Fix missing sctp_outq initialization in some code paths of SCTP
stack, from Neil Horman.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
sctp: fully initialize sctp_outq in sctp_outq_init
netiucv: Hold rtnl between name allocation and device registration.
tulip: Properly check dma mapping result
net: sh_eth: fix incorrect RX length error if R8A7740
ip_tunnel: remove __net_init/exit from exported functions
drivers: net: davinci_mdio: restore mdio clk divider in mdio resume
drivers: net: davinci_mdio: moving mdio resume earlier than cpsw ethernet driver
net/ipv4: ip_vti clear skb cb before tunneling.
tg3: Wait for boot code to finish after power on
l2tp: Fix sendmsg() return value
l2tp: Fix PPP header erasure and memory leak
bonding: fix igmp_retrans type and two related races
bonding: reset master mac on first enslave failure
packet: packet_getname_spkt: make sure string is always 0-terminated
net: ethernet: stmicro: stmmac: Fix compile error when STMMAC_XMIT_DEBUG used
be2net: Fix 32-bit DMA Mask handling
xen-netback: don't de-reference vif pointer after having called xenvif_put()
macvlan: don't touch promisc without passthrough
batman-adv: Don't handle address updates when bla is disabled
batman-adv: forward late OGMs from best next hop
...
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If CONFIG_NET_NS is not set then __net_init is the same as __init and
__net_exit is the same as __exit. These functions will be removed from
memory after the module loads or is removed. Functions that are exported
for use by other functions should never be labeled for removal.
Bug introduced by commit c54419321455631079c
("GRE: Refactor GRE tunneling code.")
Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Thanks to commit f91eb62f71b3 ("init: scream bloody murder if interrupts
are enabled too early"), "bloody murder" is now being screamed.
With a MIPS OCTEON config, we use on_each_cpu() in our
irq_chip.irq_bus_sync_unlock() function. This gets called in early as a
result of the time_init() call. Because the !SMP version of
on_each_cpu() unconditionally enables irqs, we get:
WARNING: at init/main.c:560 start_kernel+0x250/0x410()
Interrupts were enabled early
CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0-rc5-Cavium-Octeon+ #801
Call Trace:
show_stack+0x68/0x80
warn_slowpath_common+0x78/0xb0
warn_slowpath_fmt+0x38/0x48
start_kernel+0x250/0x410
Suggested fix: Do what we already do in the SMP version of
on_each_cpu(), and use local_irq_save/local_irq_restore. Because we
need a flags variable, make it a static inline to avoid name space
issues.
[ Change from v1: Convert on_each_cpu to a static inline function, add
#include <linux/irqflags.h> to avoid build breakage on some files.
on_each_cpu_mask() and on_each_cpu_cond() suffer the same problem as
on_each_cpu(), but they are not causing !SMP bugs for me, so I will
defer changing them to a less urgent patch. ]
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU fixes from Paul McKenney:
"I must confess that this past merge window was not RCU's best showing.
This series contains three more fixes for RCU regressions:
1. A fix to __DECLARE_TRACE_RCU() that causes it to act as an
interrupt from idle rather than as a task switch from idle.
This change is needed due to the recent use of _rcuidle()
tracepoints that can be invoked from interrupt handlers as well
as from idle. Without this fix, invoking _rcuidle() tracepoints
from interrupt handlers results in splats and (more seriously)
confusion on RCU's part as to whether a given CPU is idle or not.
This confusion can in turn result in too-short grace periods and
therefore random memory corruption.
2. A fix to a subtle deadlock that could result due to RCU doing
a wakeup while holding one of its rcu_node structure's locks.
Although the probability of occurrence is low, it really
does happen. The fix, courtesy of Steven Rostedt, uses
irq_work_queue() to avoid the deadlock.
3. A fix to a silent deadlock (invisible to lockdep) due to the
interaction of timeouts posted by RCU debug code enabled by
CONFIG_PROVE_RCU_DELAY=y, grace-period initialization, and CPU
hotplug operations. This will not occur in production kernels,
but really does occur in randconfig testing. Diagnosis courtesy
of Steven Rostedt"
* 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
rcu: Fix deadlock with CPU hotplug, RCU GP init, and timer migration
rcu: Don't call wakeup() with rcu_node structure ->lock held
trace: Allow idle-safe tracepoints to be called from irq
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__DECLARE_TRACE_RCU() currently creates an _rcuidle() tracepoint which
may safely be invoked from what RCU considers to be an idle CPU.
However, these _rcuidle() tracepoints may -not- be invoked from the
handler of an irq taken from idle, because rcu_idle_enter() zeroes
RCU's nesting-level counter, so that the rcu_irq_exit() returning to
idle will trigger a WARN_ON_ONCE().
This commit therefore substitutes rcu_irq_enter() for rcu_idle_exit()
and rcu_irq_exit() for rcu_idle_enter() in order to make the _rcuidle()
tracepoints usable from irq handlers as well as from process context.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound
Pull ASoC sound updates from Mark Brown:
"Takashi is travelling at the minute and it'd be good to get the
MAINTAINERS update in here merged so sending directly.
As well as the usual driver specifics we've got a couple of core fixes
here, one fixing capabilities for unidirectional streams and the other
fixing suspend while audio streams are active.
The suspend fix is a little involved but mostly as a result of
removing some special casing that was doing the wrong thing."
* tag 'asoc-v3.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound:
ASoC: tlv320aic3x: Remove deadlock from snd_soc_dapm_put_volsw_aic3x()
ASoC: dapm: Treat DAI widgets like AIF widgets for power
ASoC: arizona: Correct AEC loopback enable
ASoC: pcm: Require both CODEC and CPU support when declaring stream caps
MAINTAINERS: Remove myself from Wolfson maintainers
ASoC: wm8994: Ensure microphone detection state is reset on removal
ASoC: wm8994: Avoid leaking pm_runtime reference on removed jack race
ASoC: cs42l52: fix hp_gain_enum shift value.
ASoC: cs42l52: use correct PCM mixer TLV dB scale to match datasheet.
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Even though they are virtual widgets DAI widgets still get counted for the
DAPM context power management so we can't just use the active state to
check if they should be powered as they may not be part of a complete path.
Instead split them into input and output widgets and do the same power
checks as we perform on AIFs.
Reported-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Pull networking update from David Miller:
1) Fix dump iterator in nfnl_acct_dump() and ctnl_timeout_dump() to
dump all objects properly, from Pablo Neira Ayuso.
2) xt_TCPMSS must use the default MSS of 536 when no MSS TCP option is
present. Fix from Phil Oester.
3) qdisc_get_rtab() looks for an existing matching rate table and uses
that instead of creating a new one. However, it's key matching is
incomplete, it fails to check to make sure the ->data[] array is
identical too. Fix from Eric Dumazet.
4) ip_vs_dest_entry isn't fully initialized before copying back to
userspace, fix from Dan Carpenter.
5) Fix ubuf reference counting regression in vhost_net, from Jason
Wang.
6) When sock_diag dumps a socket filter back to userspace, we have to
translate it out of the kernel's internal representation first.
From Nicolas Dichtel.
7) davinci_mdio holds a spinlock while calling pm_runtime, which
sleeps. Fix from Sebastian Siewior.
8) Timeout check in sh_eth_check_reset is off by one, from Sergei
Shtylyov.
9) If sctp socket init fails, we can NULL deref during cleanup. Fix
from Daniel Borkmann.
10) netlink_mmap() does not propagate errors properly, from Patrick
McHardy.
11) Disable powersave and use minstrel by default in ath9k. From Sujith
Manoharan.
12) Fix a regression in that SOCK_ZEROCOPY is not set on tuntap sockets
which prevents vhost from being able to use zerocopy. From Jason
Wang.
13) Fix race between port lookup and TX path in team driver, from Jiri
Pirko.
14) Missing length checks in bluetooth L2CAP packet parsing, from Johan
Hedberg.
15) rtlwifi fails to connect to networking using any encryption method
other than WPA2. Fix from Larry Finger.
16) Fix iwlegacy build due to incorrect CONFIG_* ifdeffing for power
management stuff. From Yijing Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (35 commits)
b43: stop format string leaking into error msgs
ath9k: Use minstrel rate control by default
Revert "ath9k_hw: Update rx gain initval to improve rx sensitivity"
ath9k: Disable PowerSave by default
net: wireless: iwlegacy: fix build error for il_pm_ops
rtlwifi: Fix a false leak indication for PCI devices
wl12xx/wl18xx: scan all 5ghz channels
wl12xx: increase minimum singlerole firmware version required
wl12xx: fix minimum required firmware version for wl127x multirole
rtlwifi: rtl8192cu: Fix problem in connecting to WEP or WPA(1) networks
mwifiex: debugfs: Fix out of bounds array access
Bluetooth: Fix mgmt handling of power on failures
Bluetooth: Fix missing length checks for L2CAP signalling PDUs
Bluetooth: btmrvl: support Marvell Bluetooth device SD8897
Bluetooth: Fix checks for LE support on LE-only controllers
team: fix checks in team_get_first_port_txable_rcu()
team: move add to port list before port enablement
team: check return value of team_get_port_by_index_rcu() for NULL
tuntap: set SOCK_ZEROCOPY flag during open
netlink: fix error propagation in netlink_mmap()
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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If hci_dev_open fails we need to ensure that the corresponding
mgmt_set_powered command gets an appropriate response. This patch fixes
the missing response by adding a new mgmt_set_powered_failed function
that's used to indicate a power on failure to mgmt. Since a situation
with the device being rfkilled may require special handling in user
space the patch uses a new dedicated mgmt status code for this.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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should be checked if "cur" is txable, not "port".
Introduced by commit 6e88e1357c "team: use function team_port_txable()
for determing enabled and up port"
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Filters need to be translated to real BPF code for userland, like SO_GETFILTER.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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