The PIN number for Dell headset mode of ALC3271 is wrong.
Fixes: fcc6c877a0 ("ALSA: hda/realtek - Support Dell headset mode for ALC3271")
Signed-off-by: Shih-Yuan Lee (FourDollars) <sylee@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull MIPS fixes from Ralf Baechle:
"Here's a final round of fixes for 4.12:
- Fix misordered instructions in assembly code making kenel startup
via UHB unreliable.
- Fix special case of MADDF and MADDF emulation.
- Fix alignment issue in address calculation in pm-cps on 64 bit.
- Fix IRQ tracing & lockdep when rescheduling
- Systems with MAARs require post-DMA cache flushes.
The reordering fix and the MADDF/MSUBF fix have sat in linux-next for
a number of days. The others haven't propagated from my pull tree to
linux-next yet but all have survived manual testing and Imagination's
automated test system and there are no pending bug reports"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Avoid accidental raw backtrace
MIPS: Perform post-DMA cache flushes on systems with MAARs
MIPS: Fix IRQ tracing & lockdep when rescheduling
MIPS: pm-cps: Drop manual cache-line alignment of ready_count
MIPS: math-emu: Handle zero accumulator case in MADDF and MSUBF separately
MIPS: head: Reorder instructions missing a delay slot
Pull ARM fix from Russell King:
"One final fix for 4.12 - Doug found a boot failure case triggered by
requesting a non-even MB vmalloc size"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8685/1: ensure memblock-limit is pmd-aligned
In PCM interface/protocol for userspace, parameters of runtime for PCM
substream is decided by an interaction between applications and ALSA
PCM core. In former commits, some tracepoints were added to probe a part
of the interaction.
This commit adds a documentation about the interaction and the
tracepoints.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull x86 fixes from Thomas Gleixner:
"Fixlets for x86:
- Prevent kexec crash when KASLR is enabled, which was caused by an
address calculation bug
- Restore the freeing of PUDs on memory hot remove
- Correct a negated pointer check in the intel uncore performance
monitoring driver
- Plug a memory leak in an error exit path in the RDT code"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel_rdt: Fix memory leak on mount failure
x86/boot/KASLR: Fix kexec crash due to 'virt_addr' calculation bug
x86/boot/KASLR: Add checking for the offset of kernel virtual address randomization
perf/x86/intel/uncore: Fix wrong box pointer check
x86/mm/hotplug: Fix BUG_ON() after hot-remove by not freeing PUD
Pull perf fix from Thomas Gleixner:
"The last fix for perf for this cycles:
- Prevent a segfault when kernel.kptr_restrict=2 is set by avoiding a
null pointer dereference"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf machine: Fix segfault for kernel.kptr_restrict=2
appears not to have been properly fixed, so the offending commit will be
reverted and we will find the proper fix for v4.13. Hopefully.
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Merge tag 'pinctrl-v4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fix from Linus Walleij:
"Brian noticed that this regression has not got a proper fix for the
entire merge window and consequently we need to revert the offending
commit.
It's part of the RT-mainstream work, the dance goes like this, two
steps forward, one step back.
Summary:
- A last fix for v4.12, an IRQ problem reported early in the merge
window appears not to have been properly fixed, so the offending
commit will be reverted and we will find the proper fix for v4.13.
Hopefully"
* tag 'pinctrl-v4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
Revert "pinctrl: rockchip: avoid hardirq-unsafe functions in irq_chip"
- Fix another ACPI problem with broken BIOSes.
- Filter out the GPIO right events, making a very user-visible bug
go away.
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Merge tag 'gpio-v4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull last minute fixes for GPIO from Linus Walleij:
- Fix another ACPI problem with broken BIOSes.
- Filter out the right GPIO events, making a very user-visible bug go
away.
* tag 'gpio-v4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: acpi: Skip _AEI entries without a handler rather then aborting the scan
gpiolib: fix filtering out unwanted events
platform_get_irq() returns an error code, but the ac97c
driver ignores it and always returns -ENXIO. This is not correct,
and prevents -EPROBE_DEFER from being propagated properly.
Notice that platform_get_irq() no longer returns 0 on error.
Print and propagate the return value of platform_get_irq on failure.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
One is for a crash when using the :mod: trace probe command into
stack_trace_filter. This bug was introduced during the last merge
window.
The other was there forever. It's a small bug that makes it impossible
to name a module function for kprobes when the module starts with a digit.
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Merge tag 'trace-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull last-minute tracing fixes from Steven Rostedt:
"Two fixes:
One is for a crash when using the :mod: trace probe command into
stack_trace_filter. This bug was introduced during the last merge
window.
The other was there forever. It's a small bug that makes it impossible
to name a module function for kprobes when the module starts with a
digit"
* tag 'trace-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/kprobes: Allow to create probe with a module name starting with a digit
ftrace: Fix regression with module command in stack_trace_filter
uapi/linux/a.out.h uses a number of predefined macros that are
deprecated because they're in the application namespace
(e.g. '#ifdef linux' instead of '#ifdef __linux__').
This patch either corrects or just removes them if they are not
applicable to Linux.
The primary reason this is worth bothering to fix, considering how
obsolete a.out binary support is, is that the GCC build process
considers this such a severe error that it will copy the header into a
private directory and change the macro names, which causes future
updates to the header to be masked. This header probably doesn't get
updated very often anymore, but it is the _only_ uapi header that gets
this treatment, so IMHO it is worth patching just to drive that number
all the way to zero.
Signed-off-by: Zack Weinberg <zackw@panix.com>
[hch: removed dead conditionals]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
"in a rcu enabled hashtable" is repeated twice in a comment.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
platform_get_irq() returns an error code, but the intel_hdmi_audio
driver ignores it and always returns -ENODEV. This is not correct,
and prevents -EPROBE_DEFER from being propagated properly. Also,
notice that platform_get_irq() no longer returns 0 on error.
Print error message and propagate the return value of platform_get_irq
on failure.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Two fixes for code we merged this cycle:
- cxl: Fixes for Coherent Accelerator Interface Architecture 2.0
- Avoid miscompilation w/GCC 4.6.3 on 32-bit - don't inline copy_to/from_user()
Thanks to:
Al Viro, Larry Finger, Christophe Lombard.
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Merge tag 'powerpc-4.12-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Hopefully the last two powerpc fixes for 4.12.
The CXL one is larger than I'd usually send at rc7, but it fixes new
code this cycle, so better to have it working for the release. It was
actually sent a few weeks back but got blocked in testing behind
another fix that was causing issues.
We are still tracking one crash in v4.12-rc7, but only one person has
reproduced it and the commit identified by bisect doesn't touch any of
the relevant code, so I think it's 50/50 whether that commit is
actually the problem or it's some code layout / toolchain issue.
Two fixes for code we merged this cycle:
- cxl: Fixes for Coherent Accelerator Interface Architecture 2.0
- Avoid miscompilation w/GCC 4.6.3 on 32-bit - don't inline
copy_to/from_user()
Thanks to Al Viro, Larry Finger, Christophe Lombard"
* tag 'powerpc-4.12-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/32: Avoid miscompilation w/GCC 4.6.3 - don't inline copy_to/from_user()
cxl: Fixes for Coherent Accelerator Interface Architecture 2.0
Two fixes:
* A fix for AMD IOMMU interrupt remapping code when
IRQs are forwarded directly to KVM guests
* Fixed check in the recently merged code to allow
tboot with Intel VT-d disabled
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Merge tag 'iommu-fixes-v4.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"Two fixes:
- A fix for AMD IOMMU interrupt remapping code when IRQs are
forwarded directly to KVM guests
- Fixed check in the recently merged code to allow tboot with
Intel VT-d disabled"
* tag 'iommu-fixes-v4.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix interrupt remapping when disable guest_mode
iommu/vt-d: Correctly disable Intel IOMMU force on
Two last-minute HD-audio fixes.
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Merge tag 'sound-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Two last-minute HD-audio fixes"
* tag 'sound-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix endless loop of codec configure
ALSA: hda - set input_path bitmap to zero after moving it to new place
Pull overlayfs fixes from Miklos Szeredi:
"Fix two bugs in copy-up code. One introduced in 4.11 and one in
4.12-rc"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: don't set origin on broken lower hardlink
ovl: copy-up: don't unlock between lookup and link
SRAM address and memory window size differ for different platforms.
So add members to sst_addr structure and initialize them in the
respective dsp_init().
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Driver modules have lot of information represented in struct
skl_module_cfg. Knowing this is useful for debug, so enable
debugfs for this structure.
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Vunny Sodhi <vunnyx.sodhi@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
For debug, the kernel debugfs mechanism is available. We can add various
debug options for driver like module configuration read, firmware register
read etc.
This patch adds debugfs as a child to asoc plaform component and caller is
added for skylake driver to do init and cleanup of debugfs.
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Vunny Sodhi <vunnyx.sodhi@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/soc-core.c:1961:2-3: Unneeded semicolon
Remove unneeded semicolon.
Generated by: scripts/coccinelle/misc/semicolon.cocci
Fixes: 98faf436ee ("ASoC: Drop invalid DMI fields when setting card long name from DMI info")
CC: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
For making the development easier, add quirk module option to override
the platform data setup. For example, a platform with inverted jack
detection with jd_mode=2, pass the value 0x21 (0x1 = inv_jd1_1, 0x20 =
jd_mode=2). It overrides the whole pdata fields, so pass it
carefully.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: James Cameron <quozl@laptop.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Don't populate the arrays path and cmd_case on the stack but make
them static const. Makes the object code smaller:
Before:
text data bss dec hex filename
2673 624 0 3297 ce1 sound/soc/sh/rcar/cmd.o
After:
text data bss dec hex filename
2398 768 0 3166 c5e sound/soc/sh/rcar/cmd.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
It's very common that audio card has a machine level amplifier which is
controlled by GPIO. The patch adds DAPM widgets and routing support
into audio-graph-card driver, and creates an output driver widget with
event to control the amplifier via GPIO.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The audio-graph-card should be able to support widgets and routing in
the same way as what simple-audio-card does. The patch adds the
properties into audio-graph-card bindings. Then an optional property
'pa-gpios' for controlling external amplifier, which depends on DAPM
widgets and routing, is added.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
We will set some volatile registers in jack detection function. But
those volatile registers will be clear in rt5665_calibrate function
because we set cache bypass and reset codec in rt5665_calibrate function.
This patch add a flag to make sure that rt5665_calibrate is done
before starting jack detection.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
dev_pm_ops are not supposed to change at runtime. All functions
working with dev_pm_ops provided by <linux/device.h> work with const
dev_pm_ops. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
8172 920 0 9092 2384 sound/soc/sh/rcar/core.o
File size After adding 'const':
text data bss dec hex filename
8364 728 0 9092 2384 sound/soc/sh/rcar/core.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The property type of "nuvoton,crosstalk-bypass" changes to boolean.
The document is updated as well.
Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: John Hsu <supercraig0719@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Add some DAPM widget types to better support the construction of DAPM
graphs within DSPs.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
SND_SOC_TPLG_INDEX_ALL is used by drivers to tell the core to load
all topology component indexes, not just the index in the header.
Fix this so that SND_SOC_TPLG_INDEX_ALL will load all components no matter
their index.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Don't populate the arrays fs_list and ps_list on the stack but make
them static const. Makes the object code smaller:
Before:
text data bss dec hex filename
12084 4888 64 17036 428c sound/soc/codecs/ak4642.o
After:
text data bss dec hex filename
11883 5032 64 16979 4253 sound/soc/codecs/ak4642.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
0x0285 Device ID was not used.
It just assigned for alias of ALC293 as backup.
So, remove it first.
Because our new codec will use this device ID.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In the commit fcc88d91cd ("ALSA: hda - Bind with i915 component
before codec binding"), the binding with i915 audio component is moved
to be performed always at probing the controller. This fixed the
potential problems on IVB, but now it brought another issue on HSW and
BDW. These two platforms give two individual HD-audio controllers,
one for the analog codec on PCH and another for HDMI over gfx. Since
I decided to take a lazy path to check only AZX_DRIVER_PCH type in the
commit above, now both controllers try to bind with i915, and you see
a kernel WARNING.
This patch tries to address it again properly. Now a new DCAPS bit,
AZX_DCAPS_I915_COMPONENT, is introduced for indicating the binding
with i915 component in addition to the existing I915_POWERWELL bit
flag. Each PCI entry has to give this new flag if it requires the
binding with i915 component. For HSW/BDW PCH (i.e. the ones defined
by AZX_DCAPS_INTEL_PCH) doesn't contain AZX_DCAPS_I915_COMPONENT bit
while others have it.
While we're at it, add parentheses around the bit flag check for
avoiding possible compiler warnings, too.
The bug was spotted by Intel CI tests.
Fixes: fcc88d91cd ("ALSA: hda - Bind with i915 component before codec binding")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196219
Reported-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Kernel text KASLR is separated into physical address and virtual
address randomization. And for virtual address randomization, we
only randomiza to get an offset between 16M and KERNEL_IMAGE_SIZE.
So the initial value of 'virt_addr' should be LOAD_PHYSICAL_ADDR,
but not the original kernel loading address 'output'.
The bug will cause kernel boot failure if kernel is loaded at a different
position than the address, 16M, which is decided at compiled time.
Kexec/kdump is such practical case.
To fix it, just assign LOAD_PHYSICAL_ADDR to virt_addr as initial
value.
Tested-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 8391c73 ("x86/KASLR: Randomize virtual address separately")
Link: http://lkml.kernel.org/r/1498567146-11990-3-git-send-email-bhe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
For kernel text KASLR, the virtual address is confined to area of 1G,
[0xffffffff80000000, 0xffffffffc0000000). For the implemenataion of
virtual address randomization, we only randomize to get an offset
between 16M and 1G, then add this offset to the starting address,
0xffffffff80000000. Here 16M is the offset which is decided at linking
stage. So the amount of the local variable 'virt_addr' which respresents
the offset plus the kernel output size can not exceed KERNEL_IMAGE_SIZE.
Add a debug check for the offset. If out of bounds, print error
message and hang there.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1498567146-11990-2-git-send-email-bhe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Always try to parse an address, since kstrtoul() will safely fail when
given a symbol as input. If that fails (which will be the case for a
symbol), try to parse a symbol instead.
This allows creating a probe such as:
p:probe/vlan_gro_receive 8021q:vlan_gro_receive+0
Which is necessary for this command to work:
perf probe -m 8021q -a vlan_gro_receive
Link: http://lkml.kernel.org/r/fd72d666f45b114e2c5b9cf7e27b91de1ec966f1.1498122881.git.sd@queasysnail.net
Cc: stable@vger.kernel.org
Fixes: 413d37d1e ("tracing: Add kprobe-based event tracer")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Since commit 81a76d7119 ("MIPS: Avoid using unwind_stack() with
usermode") show_backtrace() invokes the raw backtracer when
cp0_status & ST0_KSU indicates user mode to fix issues on EVA kernels
where user and kernel address spaces overlap.
However this is used by show_stack() which creates its own pt_regs on
the stack and leaves cp0_status uninitialised in most of the code paths.
This results in the non deterministic use of the raw back tracer
depending on the previous stack content.
show_stack() deals exclusively with kernel mode stacks anyway, so
explicitly initialise regs.cp0_status to KSU_KERNEL (i.e. 0) to ensure
we get a useful backtrace.
Fixes: 81a76d7119 ("MIPS: Avoid using unwind_stack() with usermode")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: <stable@vger.kernel.org> # 3.15+
Patchwork: https://patchwork.linux-mips.org/patch/16656/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Recent CPUs from Imagination Technologies such as the I6400 or P6600 are
able to speculatively fetch data from memory into caches. This means
that if used in a system with non-coherent DMA they require that caches
be invalidated after a device performs DMA, and before the CPU reads the
DMA'd data, in order to ensure that stale values weren't speculatively
prefetched.
Such CPUs also introduced Memory Accessibility Attribute Registers
(MAARs) in order to control the regions in which they are allowed to
speculate. Thus we can use the presence of MAARs as a good indication
that the CPU requires the above cache maintenance. Use the presence of
MAARs to determine the result of cpu_needs_post_dma_flush() in the
default case, in order to handle these recent CPUs correctly.
Note that the return type of cpu_needs_post_dma_flush() is changed to
bool, such that it's clearer what's happening when cpu_has_maar is cast
to bool for the return value. If this patch were backported to a
pre-v4.7 kernel then MIPS_CPU_MAAR was 1ull<<34, so when cast to an int
we would incorrectly return 0. It so happens that MIPS_CPU_MAAR is
currently 1ull<<30, so when truncated to an int gives a non-zero value
anyway, but even so the implicit conversion from long long int to bool
makes it clearer to understand what will happen than the implicit
conversion from long long int to int would. The bool return type also
fits this usage better semantically, so seems like an all-round win.
Thanks to Ed for spotting the issue for pre-v4.7 kernels & suggesting
the return type change.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Tested-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Cc: Ed Blake <ed.blake@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16363/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
When the scheduler sets TIF_NEED_RESCHED & we call into the scheduler
from arch/mips/kernel/entry.S we disable interrupts. This is true
regardless of whether we reach work_resched from syscall_exit_work,
resume_userspace or by looping after calling schedule(). Although we
disable interrupts in these paths we don't call trace_hardirqs_off()
before calling into C code which may acquire locks, and we therefore
leave lockdep with an inconsistent view of whether interrupts are
disabled or not when CONFIG_PROVE_LOCKING & CONFIG_DEBUG_LOCKDEP are
both enabled.
Without tracing this interrupt state lockdep will print warnings such
as the following once a task returns from a syscall via
syscall_exit_partial with TIF_NEED_RESCHED set:
[ 49.927678] ------------[ cut here ]------------
[ 49.934445] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3687 check_flags.part.41+0x1dc/0x1e8
[ 49.946031] DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)
[ 49.946355] CPU: 0 PID: 1 Comm: init Not tainted 4.10.0-00439-gc9fd5d362289-dirty #197
[ 49.963505] Stack : 0000000000000000 ffffffff81bb5d6a 0000000000000006 ffffffff801ce9c4
[ 49.974431] 0000000000000000 0000000000000000 0000000000000000 000000000000004a
[ 49.985300] ffffffff80b7e487 ffffffff80a24498 a8000000ff160000 ffffffff80ede8b8
[ 49.996194] 0000000000000001 0000000000000000 0000000000000000 0000000077c8030c
[ 50.007063] 000000007fd8a510 ffffffff801cd45c 0000000000000000 a8000000ff127c88
[ 50.017945] 0000000000000000 ffffffff801cf928 0000000000000001 ffffffff80a24498
[ 50.028827] 0000000000000000 0000000000000001 0000000000000000 0000000000000000
[ 50.039688] 0000000000000000 a8000000ff127bd0 0000000000000000 ffffffff805509bc
[ 50.050575] 00000000140084e0 0000000000000000 0000000000000000 0000000000040a00
[ 50.061448] 0000000000000000 ffffffff8010e1b0 0000000000000000 ffffffff805509bc
[ 50.072327] ...
[ 50.076087] Call Trace:
[ 50.079869] [<ffffffff8010e1b0>] show_stack+0x80/0xa8
[ 50.086577] [<ffffffff805509bc>] dump_stack+0x10c/0x190
[ 50.093498] [<ffffffff8015dde0>] __warn+0xf0/0x108
[ 50.099889] [<ffffffff8015de34>] warn_slowpath_fmt+0x3c/0x48
[ 50.107241] [<ffffffff801c15b4>] check_flags.part.41+0x1dc/0x1e8
[ 50.114961] [<ffffffff801c239c>] lock_is_held_type+0x8c/0xb0
[ 50.122291] [<ffffffff809461b8>] __schedule+0x8c0/0x10f8
[ 50.129221] [<ffffffff80946a60>] schedule+0x30/0x98
[ 50.135659] [<ffffffff80106278>] work_resched+0x8/0x34
[ 50.142397] ---[ end trace 0cb4f6ef5b99fe21 ]---
[ 50.148405] possible reason: unannotated irqs-off.
[ 50.154600] irq event stamp: 400463
[ 50.159566] hardirqs last enabled at (400463): [<ffffffff8094edc8>] _raw_spin_unlock_irqrestore+0x40/0xa8
[ 50.171981] hardirqs last disabled at (400462): [<ffffffff8094eb98>] _raw_spin_lock_irqsave+0x30/0xb0
[ 50.183897] softirqs last enabled at (400450): [<ffffffff8016580c>] __do_softirq+0x4ac/0x6a8
[ 50.195015] softirqs last disabled at (400425): [<ffffffff80165e78>] irq_exit+0x110/0x128
Fix this by using the TRACE_IRQS_OFF macro to call trace_hardirqs_off()
when CONFIG_TRACE_IRQFLAGS is enabled. This is done before invoking
schedule() following the work_resched label because:
1) Interrupts are disabled regardless of the path we take to reach
work_resched() & schedule().
2) Performing the tracing here avoids the need to do it in paths which
disable interrupts but don't call out to C code before hitting a
path which uses the RESTORE_SOME macro that will call
trace_hardirqs_on() or trace_hardirqs_off() as appropriate.
We call trace_hardirqs_on() using the TRACE_IRQS_ON macro before calling
syscall_trace_leave() for similar reasons, ensuring that lockdep has a
consistent view of state after we re-enable interrupts.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: linux-mips@linux-mips.org
Cc: stable <stable@vger.kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/15385/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
We allocate memory for a ready_count variable per-CPU, which is accessed
via a cached non-coherent TLB mapping to perform synchronisation between
threads within the core using LL/SC instructions. In order to ensure
that the variable is contained within its own data cache line we
allocate 2 lines worth of memory & align the resulting pointer to a line
boundary. This is however unnecessary, since kmalloc is guaranteed to
return memory which is at least cache-line aligned (see
ARCH_DMA_MINALIGN). Stop the redundant manual alignment.
Besides cleaning up the code & avoiding needless work, this has the side
effect of avoiding an arithmetic error found by Bryan on 64 bit systems
due to the 32 bit size of the former dlinesz. This led the ready_count
variable to have its upper 32b cleared erroneously for MIPS64 kernels,
causing problems when ready_count was later used on MIPS64 via cpuidle.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Fixes: 3179d37ee1 ("MIPS: pm-cps: add PM state entry code for CPS systems")
Reported-by: Bryan O'Donoghue <bryan.odonoghue@imgtec.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@imgtec.com>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable <stable@vger.kernel.org> # v3.16+
Patchwork: https://patchwork.linux-mips.org/patch/15383/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The pmd containing memblock_limit is cleared by prepare_page_table()
which creates the opportunity for early_alloc() to allocate unmapped
memory if memblock_limit is not pmd aligned causing a boot-time hang.
Commit 965278dcb8 ("ARM: 8356/1: mm: handle non-pmd-aligned end of RAM")
attempted to resolve this problem, but there is a path through the
adjust_lowmem_bounds() routine where if all memory regions start and
end on pmd-aligned addresses the memblock_limit will be set to
arm_lowmem_limit.
Since arm_lowmem_limit can be affected by the vmalloc early parameter,
the value of arm_lowmem_limit may not be pmd-aligned. This commit
corrects this oversight such that memblock_limit is always rounded
down to pmd-alignment.
Fixes: 965278dcb8 ("ARM: 8356/1: mm: handle non-pmd-aligned end of RAM")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Pull networking fixes from David Miller:
1) Need to access netdev->num_rx_queues behind an accessor in netvsc
driver otherwise the build breaks with some configs, from Arnd
Bergmann.
2) Add dummy xfrm_dev_event() so that build doesn't fail when
CONFIG_XFRM_OFFLOAD is not set. From Hangbin Liu.
3) Don't OOPS when pfkey_msg2xfrm_state() signals an erros, from Dan
Carpenter.
4) Fix MCDI command size for filter operations in sfc driver, from
Martin Habets.
5) Fix UFO segmenting so that we don't calculate incorrect checksums,
from Michal Kubecek.
6) When ipv6 datagram connects fail, reset destination address and
port. From Wei Wang.
7) TCP disconnect must reset the cached receive DST, from WANG Cong.
8) Fix sign extension bug on 32-bit in dev_get_stats(), from Eric
Dumazet.
9) fman driver has to depend on HAS_DMA, from Madalin Bucur.
10) Fix bpf pointer leak with xadd in verifier, from Daniel Borkmann.
11) Fix negative page counts with GFO, from Michal Kubecek.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
sfc: fix attempt to translate invalid filter ID
net: handle NAPI_GRO_FREE_STOLEN_HEAD case also in napi_frags_finish()
bpf: prevent leaking pointer via xadd on unpriviledged
arcnet: com20020-pci: add missing pdev setup in netdev structure
arcnet: com20020-pci: fix dev_id calculation
arcnet: com20020: remove needless base_addr assignment
Trivial fix to spelling mistake in arc_printk message
arcnet: change irq handler to lock irqsave
rocker: move dereference before free
mlxsw: spectrum_router: Fix NULL pointer dereference
net: sched: Fix one possible panic when no destroy callback
virtio-net: serialize tx routine during reset
net: usb: asix88179_178a: Add support for the Belkin B2B128
fsl/fman: add dependency on HAS_DMA
net: prevent sign extension in dev_get_stats()
tcp: reset sk_rx_dst in tcp_disconnect()
net: ipv6: reset daddr and dport in sk if connect() fails
bnx2x: Don't log mc removal needlessly
bnxt_en: Fix netpoll handling.
bnxt_en: Add missing logic to handle TPA end error conditions.
...
races with discard passdown to the underlying data device.
- A dm raid fix to not access the superblock's >= 1.9.0 'sectors' member
unconditionally.
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Merge tag 'for-4.12/dm-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- dm thinp fix for crash that will occur when metadata device failure
races with discard passdown to the underlying data device.
- dm raid fix to not access the superblock's >= 1.9.0 'sectors' member
unconditionally.
* tag 'for-4.12/dm-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm thin: do not queue freed thin mapping for next stage processing
dm raid: fix oops on upgrading to extended superblock format
