29 Sep, 2013
2 commits
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Pull DeviceTree fixes from Rob Herring:
"Clean-up to fix some warnings for !OF builds and spelling fixes in
docs:- Clean-up openrisc prom.h
- Fix warnings caused by of_irq.h ifdefs
- Spelling fix for Synopsys"* tag 'devicetree-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dts: Fix misspelling of Synopsys
of: clean-up ifdefs in of_irq.h
openrisc: clean-up prom.h -
Pull ARM fixes from Russell King:
"Just a few relatively small ARM fixes found since the last merge
window, nothing too exciting"* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7837/3: fix Thumb-2 bug in AES assembler code
ARM: only allow kernel mode neon with AEABI
ARM: 7839/1: entry: fix tracing of ARM-private syscalls
ARM: 7836/1: add __get_user_unaligned/__put_user_unaligned
28 Sep, 2013
6 commits
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Pull hwmon fix from Guenter Roeck:
"Fix potential crash condition in applesmc driver"* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (applesmc) Check key count before proceeding -
Pull sound fixes from Takashi Iwai:
"Nothing too serious here: a couple of compress-offload core fixes,
Haswell HDMI audio fix, a fixup for new MacBook Airs and a few COEF
setups for ALC283 mic problems"* tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Enable internal mic on a Thinkpad machine with ALC283
ALSA: hda - Fix Internal Mic boost can't control with ALC283
ALSA: hda - Add documentation for CS4208 fixups
ALSA: hda - Add fixup for MacBook Air 6,1 and 6,2 with CS4208 codec
ALSA : hda - not use assigned converters for all unused pins
ALSA: compress: Make sure we trigger STOP before closing the stream.
ALSA: compress: Fix compress device unregister. -
Pull fbdev fixes from Tomi Valkeinen:
"Small fbdev fixes for various fb drivers"* tag 'fbdev-fixes-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
video: mxsfb: Add missing break
video: of: display_timing: correct display-timings node finding
neofb: fix error return code in neofb_probe()
s3fb: fix error return code in s3_pci_probe()
video: mmp: drop needless devm cleanup
OMAPDSS: Add missing dependency on backlight for DSI-CM panel drier
OMAPDSS: DISPC: set irq_safe for runtime PM
OMAPDSS: Return right error during connector probe -
Pull reiserfs and UDF fixes from Jan Kara:
"The contains fix of an UDF oops when mounting corrupted media and a
fix of a race in reiserfs leading to oops"* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
reiserfs: fix race with flush_used_journal_lists and flush_journal_list
reiserfs: remove useless flush_old_journal_lists
udf: Fortify LVID loading -
In kobj_ns_current_may_mount the default should be to allow the mount.
The test is only for a single kobj_ns_type at a time, and unless there
is a reason to prevent it the mounting sysfs should be allowed.
Subsystems that are not registered can't have are not involved so can't
have a reason to prevent mounting sysfs.This is a bug-fix to commit 7dc5dbc879bd ("sysfs: Restrict mounting
sysfs") that came in via the userns tree during the 3.12 merge window.Reported-and-tested-by: James Hogan
Signed-off-by: "Eric W. Biederman"
Signed-off-by: Linus Torvalds -
The 64-bit cmpxchg operation on the lockref is ordered by virtue of
hazarding between the cmpxchg operation and the reference count
manipulation. On weakly ordered memory architectures (such as ARM), it
can be of great benefit to omit the barrier instructions where they are
not needed.This patch moves the lockless lockref code over to a cmpxchg64_relaxed
operation, which doesn't provide barrier semantics. If the operation
isn't defined, we simply #define it as the usual 64-bit cmpxchg macro.Cc: Waiman Long
Signed-off-by: Will Deacon
Signed-off-by: Linus Torvalds
27 Sep, 2013
4 commits
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More thorough testing showed that these verbs were necessary to
improve quality of the internal mic. Patch originally from Realtek.BugLink: https://bugs.launchpad.net/bugs/1231931
Signed-off-by: David Henningsson
Signed-off-by: Takashi Iwai -
ALC283 pin control for Line1 default control by hidden register.
Use line1 as internal Mic will not get sound when boost value up.
Set control by verb for hidden register will solve this issue.Signed-off-by: Kailang Yang
Signed-off-by: Takashi Iwai -
Signed-off-by: Takashi Iwai
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This patch adds the default pin configuration and some init verbs for
setting COEFs, in addition to the correction of input pin AMP caps
for MacBook Air 6,1 and 6,2. With these changes, the headphone jack
detection starts working properly.[trivial space fixes by tiwai]
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60811
Signed-off-by: Ben Whitten
Signed-off-by: Takashi Iwai
26 Sep, 2013
17 commits
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Add missing break into the restore function.
Signed-off-by: Marek Vasut
Cc: Fabio Estevam
Cc: Shawn Guo
Cc: Tomi Valkeinen
Signed-off-by: Tomi Valkeinen -
After reports from Chris and Josh Boyer of a rare crash in applesmc,
Guenter pointed at the initialization problem fixed below. The patch
has not been verified to fix the crash, but should be applied
regardless.Reported-by:
Suggested-by: Guenter Roeck
Signed-off-by: Henrik Rydberg
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck -
of_get_display_timing(s) use of_find_node_by_name
to get child node, this is incorrect, of_get_child_by_name
should be used instead. The patch fixes it.
Small typo is also corrected.Signed-off-by: Andrzej Hajda
Signed-off-by: Kyungmin Park
Signed-off-by: Tomi Valkeinen -
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.Signed-off-by: Wei Yongjun
Signed-off-by: Tomi Valkeinen -
Fix to return -EINVAL when virtual vertical size smaller than real
instead of 0, as done elsewhere in this function. Also remove dup code.Signed-off-by: Wei Yongjun
Signed-off-by: Tomi Valkeinen -
The nice thing about devm_* is that the driver doesn't need to free the
resources but the driver core takes care about that. This also
simplifies the error path quite a bit and removes the wrong check for a
clock pointer being NULL.Russell King - ARM Linux :
"And this patch also fixes the above: disabling/unpreparing _after_ putting
the thing - which was quite silly... :)"Signed-off-by: Uwe Kleine-König
Signed-off-by: Tomi Valkeinen -
The DSI-CM driver uses the backlight class so needs to build depend on it.
Signed-off-by: Mark Brown
Reviewed-by: Jingoo Han
Signed-off-by: Tomi Valkeinen -
BIOS can mark a pin as "no physical connection" if the port is used by an
integrated display which is not audio capable. And audio driver will overlook
such pins.On Haswell, such a disconneted pin will keep muted and connected to the 1st
converter by default. But if the 1st convertor is assigned to a connected pin
for audio streaming. The muted disconnected pin can make the connected pin
no sound output.So this patch avoids using assigned converters for all unused pins for Haswell,
including the disconected pins.Signed-off-by: Mengdong Lin
Reviewed-by: David Henningsson
Signed-off-by: Takashi Iwai -
Currently we assume that userspace will shut down the compressed stream
correctly. However, if userspcae dies (e.g. cplay & ctrl-C) we dont
stop the stream before freeing it.This now checks that the stream is stopped before freeing.
Signed-off-by: Liam Girdwood
Signed-off-by: Takashi Iwai -
Pull Xen fixes from Konrad Rzeszutek Wilk:
"Bug-fixes and one update to the kernel-paramters.txt documentation.- Fix PV spinlocks triggering jump_label code bug
- Remove extraneous code in the tpm front driver
- Fix ballooning out of pages when non-preemptible
- Fix deadlock when using a 32-bit initial domain with large amount
of memory
- Add xen_nopvpsin parameter to the documentation"* tag 'stable/for-linus-3.12-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/spinlock: Document the xen_nopvspin parameter.
xen/p2m: check MFN is in range before using the m2p table
xen/balloon: don't alloc page while non-preemptible
xen: Do not enable spinlocks before jump_label_init() has executed
tpm: xen-tpmfront: Remove the locality sysfs attribute
tpm: xen-tpmfront: Fix default durations -
Pull device-mapper fixes from Mike Snitzer:
"A few fixes for dm-snapshot, a 32 bit fix for dm-stats, a couple error
handling fixes for dm-multipath. A fix for the thin provisioning
target to not expose non-zero discard limits if discards are disabled.Lastly, add two DM module parameters which allow users to tune the
emergency memory reserves that DM mainatins per device -- this helps
fix a long-standing issue for dm-multipath. The conservative default
reserve for request-based dm-multipath devices (256) has proven
problematic for users with many multipathed SCSI devices but
relatively little memory. To responsibly select a smaller value users
should use the new nr_bios tracepoint info (via commit 75afb352
"block: Add nr_bios to block_rq_remap tracepoint") to determine the
peak number of bios their workloads create"* tag 'dm-3.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: add reserved_bio_based_ios module parameter
dm: add reserved_rq_based_ios module parameter
dm: lower bio-based mempool reservation
dm thin: do not expose non-zero discard limits if discards disabled
dm mpath: disable WRITE SAME if it fails
dm-snapshot: fix performance degradation due to small hash size
dm snapshot: workaround for a false positive lockdep warning
dm stats: fix possible counter corruption on 32-bit systems
dm mpath: do not fail path on -ENOSPC -
Pull MIPS fixes from Ralf Baechle:
- Fix a comment
- A small cleanup the main purpose of which is to work around an
internal compiler error bug in certain Codesource toolchains.* git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: mm: Move some checks out of 'for' loop in DMA operations
MIPS: cpu-features.h: s/MIPS53/MIPS64/ -
Pull powerpc fixes from Ben Herrenschmidt:
"Here are a few things for -rc2, this time it's all written by me so it
can only be perfect .... right ? :)So we have the fix to call irq_enter/exit on the irq stack we've been
discussing, plus a cleanup on top to remove an unused (and broken)
stack limit tracking feature (well, make it 32-bit only in fact where
it is used and works properly).Then we have two things that I wrote over the last couple of days and
made the executive decision to include just because I can (and I'm
sure you won't object .... right ?).They fix a couple of annoying and long standing "issues":
- We had separate zImages for when booting via Open Firmware vs.
booting via a flat device-tree, while it's trivial to make one that
deals with both- We wasted a ton of cycles spinning secondary CPUs uselessly at boot
instead of starting them when needed on pseries, thus contributing
significantly to global warming"* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/pseries: Do not start secondaries in Open Firmware
powerpc/zImage: make the "OF" wrapper support ePAPR boot
powerpc: Remove ksp_limit on ppc64
powerpc/irq: Run softirqs off the top of the irq stack -
Pull x86 fixes from Ingo Molnar:
"An EFI fix and two reboot-quirk fixes"* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/reboot: Fix apparent cut-n-paste mistake in Dell reboot workaround
x86/reboot: Add quirk to make Dell C6100 use reboot=pci automatically
x86, efi: Don't map Boot Services on i386 -
Pull scheduler fixes from Ingo Molnar:
"Three small fixes"* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/balancing: Fix cfs_rq->task_h_load calculation
sched/balancing: Fix 'local->avg_load > busiest->avg_load' case in fix_small_imbalance()
sched/balancing: Fix 'local->avg_load > sds->avg_load' case in calculate_imbalance() -
Pull perf fixes from Ingo Molnar:
"Assorted standalone fixes"* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Add model number for Avoton Silvermont
perf: Fix capabilities bitfield compatibility in 'struct perf_event_mmap_page'
perf/x86/intel/uncore: Don't use smp_processor_id() in validate_group()
perf: Update ABI comment
tools lib lk: Uninclude linux/magic.h in debugfs.c
perf tools: Fix old GCC build error in trace-event-parse.c:parse_proc_kallsyms()
perf probe: Fix finder to find lines of given function
perf session: Check for SIGINT in more loops
perf tools: Fix compile with libelf without get_phdrnum
perf tools: Fix buildid cache handling of kallsyms with kcore
perf annotate: Fix objdump line parsing offset validation
perf tools: Fill in new definitions for madvise()/mmap() flags
perf tools: Sharpen the libaudit dependencies test -
My old @it.uu.se email address is going away, so update relevant
files to point to my @gmail.com address instead. In sata_promise.c
just delete the address, people can get it from MAINTAINERS.Signed-off-by: Mikael Pettersson
Signed-off-by: Linus Torvalds
25 Sep, 2013
11 commits
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The check cpu_needs_post_dma_flush() in mips_dma_sync_sg_for_cpu() and
the check !plat_device_is_coherent() in mips_dma_sync_sg_for_device()
can be moved outside the for loop.As a side effect, this also avoids a GCC bug that caused kernel compile
to fail with the error:arch/mips/mm/dma-default.c: In function 'mips_dma_sync_sg_for_cpu':
arch/mips/mm/dma-default.c:316:1: internal compiler error: in add_insn_before, at emit-rtl.c:3852This gcc failure is seen in Code Sourcery toolchains [e.g. gcc version
4.7.2 (Sourcery CodeBench Lite 2012.09-99)] after commit "MIPS: Optimize
current_cpu_type() for better code."Signed-off-by: Jayachandran C
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5907/
Reviewed-by: Markos Chandras
Tested-by: Markos Chandras
Signed-off-by: Ralf Baechle -
Which disables in the ticketlock slowpath the Xen PV optimization's.
Useful for diagnosing issues and comparing benchmarks in
over-commit CPU scenarios.Signed-off-by: Konrad Rzeszutek Wilk
-
On hosts with more than 168 GB of memory, a 32-bit guest may attempt
to grant map an MFN that is error cannot lookup in its mapping of the
m2p table. There is an m2p lookup as part of m2p_add_override() and
m2p_remove_override(). The lookup falls off the end of the mapped
portion of the m2p and (because the mapping is at the highest virtual
address) wraps around and the lookup causes a fault on what appears to
be a user space address.do_page_fault() (thinking it's a fault to a userspace address), tries
to lock mm->mmap_sem. If the gntdev device is used for the grant map,
m2p_add_override() is called from from gnttab_mmap() with mm->mmap_sem
already locked. do_page_fault() then deadlocks.The deadlock would most commonly occur when a 64-bit guest is started
and xenconsoled attempts to grant map its console ring.Introduce mfn_to_pfn_no_overrides() which checks the MFN is within the
mapped portion of the m2p table before accessing the table and use
this in m2p_add_override(), m2p_remove_override(), and mfn_to_pfn()
(which already had the correct range check).All faults caused by accessing the non-existant parts of the m2p are
thus within the kernel address space and exception_fixup() is called
without trying to lock mm->mmap_sem.This means that for MFNs that are outside the mapped range of the m2p
then mfn_to_pfn() will always look in the m2p overrides. This is
correct because it must be a foreign MFN (and the PFN in the m2p in
this case is only relevant for the other domain).Signed-off-by: David Vrabel
Cc: Stefano Stabellini
Cc: Jan Beulich
--
v3: check for auto_translated_physmap in mfn_to_pfn_no_overrides()
v2: in mfn_to_pfn() look in m2p_overrides if the MFN is out of
range as it's probably foreign.
Signed-off-by: Konrad Rzeszutek Wilk
Acked-by: Stefano Stabellini -
This seems to have been copied from the Optiplex 990 entry
above, but somoene forgot to change the ident text.Signed-off-by: Dave Jones
Link: http://lkml.kernel.org/r/20130925001344.GA13554@redhat.com
Signed-off-by: Ingo Molnar -
Starting secondary CPUs early on from Open Firmware and placing them
in a holding spin loop slows down the boot process significantly under
some hypervisors such as KVM.This is also unnecessary when RTAS supports querying the CPU state
So let's not do it.
Signed-off-by: Benjamin Herrenschmidt
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This makes the "OF" zImage wrapper (zImage.pseries, zImage.pmac,
zImage.maple) work if booted via a flat device-tree (ePAPR boot
mode), and thus potentially usable with kexec.Signed-off-by: Benjamin Herrenschmidt
-
We've been keeping that field in thread_struct for a while, it contains
the "limit" of the current stack pointer and is meant to be used for
detecting stack overflows.It has a few problems however:
- First, it was never actually *used* on 64-bit. Set and updated but
not actually exploited- When switching stack to/from irq and softirq stacks, it's update
is racy unless we hard disable interrupts, which is costly. This
is fine on 32-bit as we don't soft-disable there but not on 64-bit.Thus rather than fixing 2 in order to implement 1 in some hypothetical
future, let's remove the code completely from 64-bit. In order to avoid
a clutter of ifdef's, we remove the updates from C code completely
during interrupt stack switching, and instead maintain it from the
asm helper that is used to do the stack switching in the first place.Signed-off-by: Benjamin Herrenschmidt
-
Nowadays, irq_exit() calls __do_softirq() pretty much directly
instead of calling do_softirq() which switches to the decicated
softirq stack.This has lead to observed stack overflows on powerpc since we call
irq_enter() and irq_exit() outside of the scope that switches to
the irq stack.This fixes it by moving the stack switching up a level, making
irq_enter() and irq_exit() run off the irq stack.Signed-off-by: Benjamin Herrenschmidt
-
There is a loop in do_mlockall() that lacks a preemption point, which
means that the following can happen on non-preemptible builds of the
kernel. Dave Jones reports:"My fuzz tester keeps hitting this. Every instance shows the non-irq
stack came in from mlockall. I'm only seeing this on one box, but
that has more ram (8gb) than my other machines, which might explain
it.INFO: rcu_preempt self-detected stall on CPU { 3} (t=6500 jiffies g=470344 c=470343 q=0)
sending NMI to all CPUs:
NMI backtrace for cpu 3
CPU: 3 PID: 29664 Comm: trinity-child2 Not tainted 3.11.0-rc1+ #32
Call Trace:
lru_add_drain_all+0x15/0x20
SyS_mlockall+0xa5/0x1a0
tracesys+0xdd/0xe2"This commit addresses this problem by inserting the required preemption
point.Reported-by: Dave Jones
Signed-off-by: Paul E. McKenney
Cc: KOSAKI Motohiro
Cc: Michel Lespinasse
Cc: Andrew Morton
Signed-off-by: Linus Torvalds -
s/Synopsis/Synopsys
s/synopsis/synopsysSigned-off-by: Dinh Nguyen
Cc: Pavel Machek
CC: Arnd Bergmann
CC: Olof Johansson
Cc: Rob Herring
Cc: Pawel Moll
Cc: Mark Rutland
Cc: Stephen Warren
Cc: Ian Campbell
Cc: Chris Ball
Cc: Jaehoon Chung
Cc: Seungwon Jeon
Cc: Tomasz Figa
Cc: devicetree@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
Acked-by: Olof Johansson
Signed-off-by: Rob Herring -
Much of of_irq.h is needlessly ifdef'ed. Clean this up and minimize the
amount ifdef'ed code. This fixes some build warnings when CONFIG_OF
is not enabled (seen on i386 and x86_64):include/linux/of_irq.h:82:7: warning: 'struct device_node' declared inside parameter list [enabled by default]
include/linux/of_irq.h:82:7: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
include/linux/of_irq.h:87:47: warning: 'struct device_node' declared inside parameter list [enabled by default]Compile tested on i386, sparc and arm.
Reported-by: Randy Dunlap
Cc: Grant Likely
Signed-off-by: Rob Herring
