nouveau fixes.
* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/gm107/gr: bump attrib cb size quite a bit
drm/nouveau: fix another lock unbalance in nouveau_crtc_page_flip
drm/nouveau/bios: fix shadowing from PROM on big-endian systems
drm/nouveau/acpi: allow non-optimus setups to load vbios from acpi
Some more i915 fixes. There's still some DP issues we are looking into,
but wanted to get these moving.
* tag 'topc/core-stuff-2014-05-05' of git://anongit.freedesktop.org/drm-intel:
drm/i915: don't try DP_LINK_BW_5_4 on HSW ULX
drm/i915: Sanitize the enable_ppgtt module option once
drm/i915: Break encoder->crtc link separately in intel_sanitize_crtc()
this is the next pull quested for stashed up radeon fixes for 3.15. As discussed support for Mullins was separated out and will get it's own pull request. Remaining highlights are:
1. Some more patches to better handle PLL limits.
2. Making use of the PFLIP additional to the VBLANK interrupt, otherwise we sometimes miss page flip events.
3. Fix for the UVD command stream parser.
4. Fix for bootup UVD clocks on RV7xx systems.
5. Adding missing error check on dpcd reads.
6. Fixes number of banks calculation on SI.
* 'drm-fixes-3.15' of git://people.freedesktop.org/~deathsimple/linux:
drm/radeon: lower the ref * post PLL maximum
drm/radeon: check that we have a clock before PLL setup
drm/radeon: drm/radeon: add missing radeon_semaphore_free to error path
drm/radeon: Fix num_banks calculation for SI
drm/radeon/dp: check for errors in dpcd reads
drm/radeon: avoid high jitter with small frac divs
drm/radeon: check buffer relocation offset
drm/radeon: use pflip irq on R600+ v2
drm/radeon/uvd: use lower clocks on old UVD to boot v2
The way the tile mode array index was calculated only makes sense for
the CIK specific macrotile mode array. For SI, we need to use one of the
tile mode array indices reserved for displayable surfaces.
This happened to result in correct display most if not all of the time
because most of the SI tiling modes use the same number of banks.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
On 64 bit systems the agp_info struct has a 4 byte hole between
->agp_mode and ->aper_base. We need to clear it to avoid disclosing
stack information to userspace.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Pull irq fixes from Thomas Gleixner:
"This udpate delivers:
- A fix for dynamic interrupt allocation on x86 which is required to
exclude the GSI interrupts from the dynamic allocatable range.
This was detected with the newfangled tablet SoCs which have GPIOs
and therefor allocate a range of interrupts. The MSI allocations
already excluded the GSI range, so we never noticed before.
- The last missing set_irq_affinity() repair, which was delayed due
to testing issues
- A few bug fixes for the armada SoC interrupt controller
- A memory allocation fix for the TI crossbar interrupt controller
- A trivial kernel-doc warning fix"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: irq-crossbar: Not allocating enough memory
irqchip: armanda: Sanitize set_irq_affinity()
genirq: x86: Ensure that dynamic irq allocation does not conflict
linux/interrupt.h: fix new kernel-doc warnings
irqchip: armada-370-xp: Fix releasing of MSIs
irqchip: armada-370-xp: implement the ->check_device() msi_chip operation
irqchip: armada-370-xp: fix invalid cast of signed value into unsigned variable
Pull timer fixes from Thomas Gleixner:
"This update brings along:
- Two fixes for long standing bugs in the hrtimer code, one which
prevents remote enqueuing and the other preventing arbitrary delays
after a interrupt hang was detected
- A fix in the timer wheel which prevents math overflow
- A fix for a long standing issue with the architected ARM timer
related to the C3STOP mechanism.
- A trivial compile fix for nspire SoC clocksource"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timer: Prevent overflow in apply_slack
hrtimer: Prevent remote enqueue of leftmost timers
hrtimer: Prevent all reprogramming if hang detected
clocksource: nspire: Fix compiler warning
clocksource: arch_arm_timer: Fix age-old arch timer C3STOP detection issue
Pull tracing fix from Steven Rostedt:
"This is a small fix where the trigger code used the wrong
rcu_dereference(). It required rcu_dereference_sched() instead of the
normal rcu_dereference(). It produces a nasty RCU lockdep splat due
to the incorrect rcu notation"
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
* tag 'trace-fixes-v3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Use rcu_dereference_sched() for trace event triggers
As trace event triggers are now part of the mainline kernel, I added
my trace event trigger tests to my test suite I run on all my kernels.
Now these tests get run under different config options, and one of
those options is CONFIG_PROVE_RCU, which checks under lockdep that
the rcu locking primitives are being used correctly. This triggered
the following splat:
===============================
[ INFO: suspicious RCU usage. ]
3.15.0-rc2-test+ #11 Not tainted
-------------------------------
kernel/trace/trace_events_trigger.c:80 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
rcu_scheduler_active = 1, debug_locks = 0
4 locks held by swapper/1/0:
#0: ((&(&j_cdbs->work)->timer)){..-...}, at: [<ffffffff8104d2cc>] call_timer_fn+0x5/0x1be
#1: (&(&pool->lock)->rlock){-.-...}, at: [<ffffffff81059856>] __queue_work+0x140/0x283
#2: (&p->pi_lock){-.-.-.}, at: [<ffffffff8106e961>] try_to_wake_up+0x2e/0x1e8
#3: (&rq->lock){-.-.-.}, at: [<ffffffff8106ead3>] try_to_wake_up+0x1a0/0x1e8
stack backtrace:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.15.0-rc2-test+ #11
Hardware name: /DG965MQ, BIOS MQ96510J.86A.0372.2006.0605.1717 06/05/2006
0000000000000001 ffff88007e083b98 ffffffff819f53a5 0000000000000006
ffff88007b0942c0 ffff88007e083bc8 ffffffff81081307 ffff88007ad96d20
0000000000000000 ffff88007af2d840 ffff88007b2e701c ffff88007e083c18
Call Trace:
<IRQ> [<ffffffff819f53a5>] dump_stack+0x4f/0x7c
[<ffffffff81081307>] lockdep_rcu_suspicious+0x107/0x110
[<ffffffff810ee51c>] event_triggers_call+0x99/0x108
[<ffffffff810e8174>] ftrace_event_buffer_commit+0x42/0xa4
[<ffffffff8106aadc>] ftrace_raw_event_sched_wakeup_template+0x71/0x7c
[<ffffffff8106bcbf>] ttwu_do_wakeup+0x7f/0xff
[<ffffffff8106bd9b>] ttwu_do_activate.constprop.126+0x5c/0x61
[<ffffffff8106eadf>] try_to_wake_up+0x1ac/0x1e8
[<ffffffff8106eb77>] wake_up_process+0x36/0x3b
[<ffffffff810575cc>] wake_up_worker+0x24/0x26
[<ffffffff810578bc>] insert_work+0x5c/0x65
[<ffffffff81059982>] __queue_work+0x26c/0x283
[<ffffffff81059999>] ? __queue_work+0x283/0x283
[<ffffffff810599b7>] delayed_work_timer_fn+0x1e/0x20
[<ffffffff8104d3a6>] call_timer_fn+0xdf/0x1be^M
[<ffffffff8104d2cc>] ? call_timer_fn+0x5/0x1be
[<ffffffff81059999>] ? __queue_work+0x283/0x283
[<ffffffff8104d823>] run_timer_softirq+0x1a4/0x22f^M
[<ffffffff8104696d>] __do_softirq+0x17b/0x31b^M
[<ffffffff81046d03>] irq_exit+0x42/0x97
[<ffffffff81a08db6>] smp_apic_timer_interrupt+0x37/0x44
[<ffffffff81a07a2f>] apic_timer_interrupt+0x6f/0x80
<EOI> [<ffffffff8100a5d8>] ? default_idle+0x21/0x32
[<ffffffff8100a5d6>] ? default_idle+0x1f/0x32
[<ffffffff8100ac10>] arch_cpu_idle+0xf/0x11
[<ffffffff8107b3a4>] cpu_startup_entry+0x1a3/0x213
[<ffffffff8102a23c>] start_secondary+0x212/0x219
The cause is that the triggers are protected by rcu_read_lock_sched() but
the data is dereferenced with rcu_dereference() which expects it to
be protected with rcu_read_lock(). The proper reference should be
rcu_dereference_sched().
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Pull ACPI and power management fixes from Rafael Wysocki:
"A bunch of regression fixes this time. They fix two regressions in
the PNP subsystem, one in the ACPI processor driver and one in the
ACPI EC driver, four cpufreq driver regressions and an unrelated bug
in one of the drivers. The regressions are recent or introduced in
3.14.
Specifics:
- There are two bugs in the ACPI PNP core that cause errors to be
returned if optional ACPI methods are not present. After an ACPI
core change made in 3.14 one of those errors leads to serial port
suspend failures on some systems. Fix from Rafael J Wysocki.
- A recently added PNP quirk related to Intel chipsets intorduced a
build error in unusual configurations (PNP without PCI). Fix from
Bjorn Helgaas.
- An ACPI EC workaround related to system suspend on Samsung machines
added in 3.14 introduced a race causing some valid EC events to be
discarded. Fix from Kieran Clancy.
- The acpi-cpufreq driver fails to load on some systems after a 3.14
commit related to APIC ID parsing that overlooked one corner case.
Fix from Lan Tianyu.
- Fix for a recently introduced build problem in the ppc-corenet
cpufreq driver from Tim Gardner.
- A recent cpufreq core change to ensure serialization of frequency
transitions for drivers with a ->target_index() callback overlooked
the fact that some of those drivers had been doing operations
introduced by it into the core already by themselves. That
resulted in a mess in which the core and the drivers try to do the
same thing and block each other which leads to deadlocks. Fixes
for the powernow-k7, powernow-k6, and longhaul cpufreq drivers from
Srivatsa S Bhat.
- Fix for a computational error in the powernow-k6 cpufreq driver
from Srivatsa S Bhat"
* tag 'pm+acpi-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / processor: Fix failure of loading acpi-cpufreq driver
PNP / ACPI: Do not return errors if _DIS or _SRS are not present
PNP: Fix compile error in quirks.c
ACPI / EC: Process rather than discard events in acpi_ec_clear
cpufreq: ppc-corenet-cpufreq: Fix __udivdi3 modpost error
cpufreq: powernow-k7: Fix double invocation of cpufreq_freq_transition_begin/end
cpufreq: powernow-k6: Fix double invocation of cpufreq_freq_transition_begin/end
cpufreq: powernow-k6: Fix incorrect comparison with max_multipler
cpufreq: longhaul: Fix double invocation of cpufreq_freq_transition_begin/end
Pull driver core deferred probe fix from Grant Likely:
"Drivercore race condition fix (exposed by devicetree)
This branch fixes a bug where a device can get stuck in the deferred
list even though all its dependencies are met. The bug has existed
for a long time, but new platform conversions to device tree have
exposed it. This patch is needed to get those platforms working.
This was the pending bug fix I mentioned in my previous pull request.
Normally this would go through Greg's tree seeing that it is a
drivercore change, but devicetree exposes the problem. I've discussed
with Greg and he okayed me asking you to pull directly"
* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux:
drivercore: deferral race condition fix
* acpi-ec:
ACPI / EC: Process rather than discard events in acpi_ec_clear
* acpi-processor:
ACPI / processor: Fix failure of loading acpi-cpufreq driver
Pull device mapper fixes from Mike Snitzer:
"A few dm-thinp fixes for changes merged in 3.15-rc1.
A dm-verity fix for an immutable biovec regression that affects 3.14+.
A dm-cache fix to properly quiesce when using writethrough mode (3.14+)"
* tag 'dm-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: fix writethrough mode quiescing in cache_map
dm thin: use INIT_WORK_ONSTACK in noflush_work to avoid ODEBUG warning
dm verity: fix biovecs hash calculation regression
dm thin: fix rcu_read_lock being held in code that can sleep
dm thin: irqsave must always be used with the pool->lock spinlock
Pull x86 fixes from Peter Anvin:
"Two very small changes: one fix for the vSMP Foundation platform, and
one to help LLVM not choke on options it doesn't understand (although
it probably should)"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vsmp: Fix irq routing
x86: LLVMLinux: Wrap -mno-80387 with cc-option
Pull KVM fixes from Paolo Bonzini:
- Fix for a Haswell regression in nested virtualization, introduced
during the merge window.
- A fix from Oleg to async page faults.
- A bunch of small ARM changes.
- A trivial patch to use the new MSI-X API introduced during the merge
window.
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: ARM: vgic: Fix the overlap check action about setting the GICD & GICC base address.
KVM: arm/arm64: vgic: fix GICD_ICFGR register accesses
KVM: async_pf: mm->mm_users can not pin apf->mm
KVM: ARM: vgic: Fix sgi dispatch problem
MAINTAINERS: co-maintainance of KVM/{arm,arm64}
arm: KVM: fix possible misalignment of PGDs and bounce page
KVM: x86: Check for host supported fields in shadow vmcs
kvm: Use pci_enable_msix_exact() instead of pci_enable_msix()
ARM: KVM: disable KVM in Kconfig on big-endian systems
Pull s390 fixes from Martin Schwidefsky:
"Two bug fixes, one to fix a potential information leak in the BPF jit
and common-io-layer fix for old firmware levels"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/bpf,jit: initialize A register if 1st insn is BPF_S_LDX_B_MSH
s390/chsc: fix SEI usage on old FW levels
When initially looking at traces, missed the fact the binary driver was
using large pages.
Fixes page faults when launching geometry shaders.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Fixes a regression introduced by 060810d7ab "drm/nouveau: fix locking
issues in page flipping paths". chan->cli->mutex is unlocked a second time
in the fail_unreserve path, fix this by moving mutex_unlock down.
Cc: stable@vger.kernel.org # v3.11+
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
There appear to be a crop of new hardware where the vbios is not
available from PROM/PRAMIN, but there is a valid _ROM method in ACPI.
The data read from PCIROM almost invariably contains invalid
instructions (still has the x86 opcodes), which makes this a low-risk
way to try to obtain a valid vbios image.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76475
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: <stable@vger.kernel.org> # v2.6.35+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Pull infiniband/rdma fixes from Roland Dreier:
"cxgb4 hardware driver fixes"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
RDMA/cxgb4: Update Kconfig to include Chelsio T5 adapter
RDMA/cxgb4: Only allow kernel db ringing for T4 devs
RDMA/cxgb4: Force T5 connections to use TAHOE congestion control
RDMA/cxgb4: Fix endpoint mutex deadlocks
Pull parisc fixes from Helge Deller:
"Drop the architecture-specifc value for_STK_LIM_MAX to fix stack
related problems with GNU make"
* 'parisc-3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Use generic uapi/asm/resource.h file
parisc: remove _STK_LIM_MAX override
Commit 2ee57d5873 ("dm cache: add passthrough mode") inadvertently
removed the deferred set reference that was taken in cache_map()'s
writethrough mode support. Restore taking this reference.
This issue was found with code inspection.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Cc: stable@vger.kernel.org # 3.13+
Pull pin control fixes from Linus Walleij:
"Here is a small set of pin control fixes for the v3.15 series. All
are individual driver fixes and quite self-contained. One of them
tagged for stable.
- Signedness bug in the TB10x
- GPIO inversion fix for the AS3722
- Clear pending pin interrups enabled in the bootloader in the
pinctrl-single driver
- Minor pin definition fixes for the PFC/Renesas driver"
* tag 'pinctrl-v3.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
sh-pfc: r8a7791: Fix definition of MOD_SEL3
sh-pfc: r8a7790: Fix definition of IPSR5
pinctrl: single: Clear pin interrupts enabled by bootloader
pinctrl: as3722: fix handling of GPIO invert bit
pinctrl/TB10x: Fix signedness bug
Pull module fixes from Rusty Russell:
"Fixed one missing place for the new taint flag, and remove a warning
giving only false positives (now we finally figured out why)"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
module: remove warning about waiting module removal.
Fix: tracing: use 'E' instead of 'X' for unsigned module taint flag
There are only a couple of architectures that override _STK_LIM_MAX to
a non-infinity value. This changes the stack allocation semantics in
subtle ways. For example, GNU make changes its stack allocation to the
hard maximum defined by _STK_LIM_MAX. As a results, threads executed
by processes running under make are allocated a stack size of
_STK_LIM_MAX rather than a sensible default value. This causes various
thread stress tests to fail when they can't muster more than about 50
threads.
The attached change implements the default behavior used by the
majority of architectures.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Reviewed-by: Carlos O'Donell <carlos@systemhalted.org>
Cc: stable@vger.kernel.org # 3.14
Signed-off-by: Helge Deller <deller@gmx.de>
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, plus an Intel RAPL PMU driver fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tests x86: Fix stack map lookup in dwarf unwind test
perf x86: Fix perf to use non-executable stack, again
perf tools: Remove extra '/' character in events file path
perf machine: Search for modules in %s/lib/modules/%s
perf tests: Add static build make test
perf tools: Fix bfd dependency libraries detection
perf tools: Use LDFLAGS instead of ALL_LDFLAGS
perf/x86: Fix RAPL rdmsrl_safe() usage
tools lib traceevent: Fix memory leak in pretty_print()
tools lib traceevent: Fix backward compatibility macros for pevent filter enums
perf tools: Disable libdw unwind for all but x86 arch
perf tests x86: Fix memory leak in sample_ustack()
This is simpler and cleaner. Depending on architecture, a smart
compiler may or may not generate the same code.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull aio fixes from Ben LaHaise:
"The first change from Anatol fixes a regression where io_destroy() no
longer waits for outstanding aios to complete. The second corrects a
memory leak in an error path for vectored aio operations.
Both of these bug fixes should be queued up for stable as well"
* git://git.kvack.org/~bcrl/aio-fixes:
aio: fix potential leak in aio_run_iocb().
aio: block io_destroy() until all context requests are completed
iovec should be reclaimed whenever caller of rw_copy_check_uvector() returns,
but it doesn't hold when failure happens right after aio_setup_vectored_rw().
Fix that in a such way to avoid hairy goto.
Signed-off-by: Leon Yu <chianglungyu@gmail.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Cc: stable@vger.kernel.org
This reverts commit 9fb6c9c73b.
Tjmax on some Intel CPUs is below 85 degrees C. One known example is
L5630 with Tjmax of 71 degrees C. There are other Xeon processors with
Tjmax of 70 or 80 degrees C. Also, the Intel IA32 System Programming
document states that the temperature target is in bits 23:16 of MSR 0x1a2
(MSR_TEMPERATURE_TARGET), which is 8 bits, not 7.
So even if turbostat uses similar checks to validate Tjmax, there is no
evidence that the checks are actually required. On the contrary, the
checks are known to cause problems and therefore need to be removed.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=75071.
Fixes: 9fb6c9c hwmon: (coretemp) Refine TjMax detection
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Check to make sure the transaction succeeded before
using the register value. Fixes occasional link training
problems.
Noticed-by: Sergei Antonov <saproj@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Testing the update pending bit directly after issuing an
update is nonsense cause depending on the pixel clock the
CRTC needs a bit of time to execute the flip even when we
are in the VBLANK period.
This is just a non invasive patch to solve the problem at
hand, a more complete and cleaner solution should follow
in the next merge window.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=76564
v2: fix source IDs for CRTC2-6
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Pull perf/urgent fixes from Jiri Olsa:
* Fix perf to use non-executable stack, again (Mathias Krause)
* Remove extra '/' character in events file path (Xia Kaixu)
* Search for modules in %s/lib/modules/%s (Richard Yao)
* Build related fixies plus static build test (Jiri Olsa)
* Fix stack map lookup in dwarf unwind test (Jiri Olsa)
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
According commit d640113fe (ACPI: processor: fix acpi_get_cpuid for UP
processor), BIOS may not provide _MAT or MADT tables and acpi_get_apicid()
always returns -1. For these cases, original code will pass apic_id with
vaule of -1 to acpi_map_cpuid() and it will check the acpi_id. If acpi_id
is equal to zero, ignores apic_id and return zero for CPU0.
Commit b981513 (ACPI / scan: bail out early if failed to parse APIC
ID for CPU) changed the behavior. Return ENODEV when find apic_id is
less than zero after calling acpi_get_apicid(). This causes acpi-cpufreq
driver fails to be loaded on some machines. This patch is to fix it.
Fixes: b981513f80 (ACPI / scan: bail out early if failed to parse APIC ID for CPU)
References: https://bugzilla.kernel.org/show_bug.cgi?id=73781
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Reported-and-tested-by: KATO Hiroshi <katoh@mikage.ne.jp>
Reported-and-tested-by: Stuart Foster <smf.linux@ntlworld.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The ACPI PNP subsystem returns errors from pnpacpi_set_resources()
and pnpacpi_disable_resources() if the _SRS or _DIS methods are not
present, respectively, but it should not do that, because those
methods are optional. For this reason, modify pnpacpi_set_resources()
and pnpacpi_disable_resources(), respectively, to ignore missing _SRS
or _DIS.
This problem has been uncovered by commit 202317a573 (ACPI / scan:
Add acpi_device objects for all device nodes in the namespace) and
manifested itself by causing serial port suspend to fail on some
systems.
Fixes: 202317a573 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
References: https://bugzilla.kernel.org/show_bug.cgi?id=74371
Reported-by: wxg4net <wxg4net@gmail.com>
Reported-and-tested-by: <nonproffessional@gmail.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
First round of KVM/ARM Fixes for 3.15
Includes vgic fixes, a possible kernel corruption bug due to
misalignment of pages and disabling of KVM in KConfig on big-endian
systems, because the last one breaks the build.
There was a very small race window where resume to kernel mode from a
Exception Path (or pure kernel mode which is true for most of ARC
exceptions anyways), was not disabling interrupts in restore_regs,
clobbering the exception regs
Anton found the culprit call flow (after many sleepless nights)
| 1. we got a Trap from user land
| 2. started to service it.
| 3. While doing some stuff on user-land memory (I think it is padzero()),
| we got a DataTlbMiss
| 4. On return from it we are taking "resume_kernel_mode" path
| 5. NEED_RESHED is not set, so we go to "return from exception" path in
| restore regs.
| 6. there seems to be IRQ happening
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: <stable@vger.kernel.org> #3.10, 3.12, 3.13, 3.14
Cc: Anton Kolesov <Anton.Kolesov@synopsys.com>
Cc: Francois Bedard <Francois.Bedard@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull sound fixes from Takashi Iwai:
"A few collections of small eggs that have been gathered during the
Easter holidays. Mostly small ASoC fixes, with a HD-audio quirk and a
workaround for Nvidia controller"
* tag 'sound-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Suppress CORBRP clear on Nvidia controller chips
ALSA: hda - add headset mic detect quirk for a Dell laptop
ASoC: jz4740: Remove Makefile entry for removed file
ASoC: Intel: Fix audio crash due to negative address offset
ASoC: dapm: Fix widget double free with auto-disable DAPM kcontrol
ASoC: Intel: Fix incorrect sizeof() in sst_hsw_stream_get_volume()
ASoC: Intel: some incorrect sizeof() usages
ASoC: cs42l73: Convert to use devm_gpio_request_one
ASoC: cs42l52: Convert to use devm_gpio_request_one
ASoC: tlv320aic31xx: document that the regulators are mandatory
ASoC: fsl_spdif: Fix wrong OFFSET of STC_SYSCLK_DIV
ASoC: alc5623: Fix regmap endianness
ASoC: tlv320aic3x: fix shared reset pin for DT
ASoC: rsnd: fix clock prepare/unprepare
