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The
if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
line of code is not exactly the easiest to audit, especially when
it ends up at two different indentation levels. This eliminates
one of the the copy-n-paste versions. It also gives us a unified
exit point for each path through this function. We need this in
a minute for our tracepoint.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: http://lkml.kernel.org/r/20140731154054.44F1CDDC@viggo.jf.intel.com
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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ABE DPLL frequency need to be lowered from 361267200
to 180633600 to facilitate the ATL requironments.
The dpll_abe_m2x2_ck clock need to be set to double
of ABE DPLL rate in order to have correct clocks
for audio.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Paul Handrigan <Paul.Handrigan@cirrus.com>
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Resolve shadow warnings that appear in W=2 builds. Instead of
using ret to hold the return pointer, save the length in a new
variable saved_len and compute the pointer on exit. This also
resolves a very technical error, in that ret was declared as
a const char *, when it really was a char * const.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-next
Two fixes for recently introduced regressions
- a memory leak on busy SIGP
- pontentially lost SIGP stop in rare situations (shutdown loops)
The first issue is not part of a released kernel. The 2nd issue is
present in all KVM versions, but did not trigger before commit
7dfc63cf977447e09b1072911c2 (KVM: s390: allow only one SIGP STOP
(AND STORE STATUS) at a time) with Linux as a guest.
So no need for cc stable
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Just like GICv2 was fixed in 63afbe7a0ac1
(kvm: arm64: vgic: fix hyp panic with 64k pages on juno platform),
mandate the GICV region to be both aligned on a page boundary and
its size to be a multiple of page size.
This prevents a guest from being able to poke at regions where we
have no idea what is sitting there.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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Th AF_ALG socket was missing a security label (e.g. SELinux)
which means that socket was in "unlabeled" state.
This was recently demonstrated in the cryptsetup package
(cryptsetup v1.6.5 and later.)
See https://bugzilla.redhat.com/show_bug.cgi?id=1115120
This patch clones the sock's label from the parent sock
and resolves the issue (similar to AF_BLUETOOTH protocol family).
Cc: stable@vger.kernel.org
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Commit 72c583951526 (arm64: gicv3: Allow GICv3 compilation with
older binutils) changed the way we express the GICv3 system registers,
but couldn't change the occurences used by KVM as the code wasn't
merged yet.
Just fix the accessors.
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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X.509 certificate issuer and subject fields are mandatory fields in the ASN.1
and so their existence needn't be tested for. They are guaranteed to end up
with an empty string if the name material has nothing we can use (see
x509_fabricate_name()).
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
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Help ensure that patches get sent to the Realtek developers for review by
adding an explicit MAINTAINERS entry for them.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Bard Liao <bardliao@realtek.com>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
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This reverts commit a28e3f4b90543f7c249a956e3ca518e243a04618.
Ard and Yi Li report that this patch is broken by design, so revert it
and let them sort it out for 3.18 instead.
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
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The CODEC doesn't care how data is laid out in memory.
Signed-off-by: Mark Brown <broonie@linaro.org>
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A GIC interrupt which is declared as having a GIC_MAP_TO_NMI_MSK
mapping causes the cpu parameter to gic_setup_intr() to be increased
to 32, causing memory corruption when pcpu_masks[] is written to again
later in the function.
Signed-off-by: Jeffrey Deans <jeffrey.deans@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7375/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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DT boot does not yet support more than one edma device. To avoid issues at
runtime we should not register the second device when the kernel is booted
with DT.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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In case of edma_alloc_slot() failure during probe we should return the error
unchanged to make debugging easier.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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Document the device tree bindings for the R-Car Generation 2 DMA
Controller (DMAC).
Cc: devicetree@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The sg list used to prepare cyclic DMA descriptors is currently
allocated statically on the stack as an array of 32 elements. This makes
the shdma_prep_dma_cyclic() function consume a lot of stack space, as
reported by the compiler:
drivers/dma/sh/shdma-base.c: In function ‘shdma_prep_dma_cyclic’:
drivers/dma/sh/shdma-base.c:715:1: warning: the frame size of 1056 bytes
is larger than 1024 bytes [-Wframe-larger-than=]
Given the limited Linux kernel stack size, this could lead to stack
overflows. Fix the problem by allocating the sg list dynamically.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The shdma_chan_filter() function relies on the DMA channel being
embedded in an shdma_chan structure. If this assumption isn't true, for
instance when the system contains DMA channels supported by an unrelated
driver, the function will crash.
Avoid this by returning false directly when the channel belongs to an
unrelated device.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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Separate helpers and drivers in the Kconfig and Makefile to improve
readability and move the CONFIG_OF dependency from the Makefile to
Kconfig.
[pebolle@tiscali.nl: reported need to rename SHDMA_R8A73A4 instances]
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[horms+renesas@verge.net.au: squashed rename of SHDMA_R8A73A4 instances]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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A user process setting the CPU affinity of an IRQ for a KVM
direct-assigned device via /proc/irq/<IRQ#>/smp_affinity can race with
the IRQ being released by QEMU, resulting in a NULL iommu pointer
dereference in get_irte(), causing this crash:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000090
IP: [<ffffffff8190a652>] intel_ioapic_set_affinity+0x82/0x1b0
PGD 99172e067 PUD 1026979067 PMD 0
Oops: 0000 [#1] SMP
Modules linked in:
CPU: 1 PID: 3354 Comm: affin Not tainted 3.16.0-rc7-00007-g31dab71 #1
Hardware name: Supermicro SYS-F617R2-RT+/X9DRFR, BIOS 3.0a 01/29/2014
task: ffff881025b0e720 ti: ffff88099173c000 task.ti: ffff88099173c000
RIP: 0010:[<ffffffff8190a652>] [<ffffffff8190a652>] intel_ioapic_set_affinity+0x82/0x1b0
RSP: 0018:ffff88099173fdb0 EFLAGS: 00010046
RAX: 0000000000000082 RBX: ffff880a36294600 RCX: 0000000000000082
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8266af00
RBP: ffff88099173fdf8 R08: 0000000000000000 R09: ffff88103ec00490
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88099173fe90
R13: 000000000000005f R14: ffff880faa38fe80 R15: ffff880faa38fe80
FS: 00007f7161f05740(0000) GS:ffff88107fc40000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000090 CR3: 000000099140d000 CR4: 00000000001427e0
Stack:
ffffffff81c44740 ffff88099173fdc8 ffffffff00000000 00000000c991fd3b
ffff880a36294600 ffff88099173fe90 ffff88099173fe90 0000000000000000
0000000000000286 ffff88099173fe08 ffffffff8190aac5 ffff88099173fe28
Call Trace:
[<ffffffff8190aac5>] set_remapped_irq_affinity+0x25/0x40
[<ffffffff811322dc>] irq_do_set_affinity+0x1c/0x50
[<ffffffff81132458>] irq_set_affinity_locked+0x98/0xd0
[<ffffffff811324d6>] __irq_set_affinity+0x46/0x70
[<ffffffff811362dc>] write_irq_affinity.isra.6+0xdc/0x100
[<ffffffff8113631c>] irq_affinity_list_proc_write+0x1c/0x20
[<ffffffff8129f30d>] proc_reg_write+0x3d/0x80
[<ffffffff812384a7>] vfs_write+0xb7/0x1f0
[<ffffffff81243619>] ? putname+0x29/0x40
[<ffffffff812390c5>] SyS_write+0x55/0xd0
[<ffffffff81adc729>] system_call_fastpath+0x16/0x1b
Code: ff 48 85 d2 74 68 4c 8b 7a 30 4d 85 ff 74 5f 48 c7 c7 00 af 66 82 e8 9e 1b 1d 00 49 8b 57 20 41 0f b7 77 28 48 c7 c7 00 af 66 82 <48> 8b 8a 90 00 00 00 41 0f b7 57 2a 01 f2 48 89 c6 48 63 d2 48
RIP [<ffffffff8190a652>] intel_ioapic_set_affinity+0x82/0x1b0
RSP <ffff88099173fdb0>
CR2: 0000000000000090
Signed-off-by: Greg Edwards <gedwards@ddn.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Commit 190f1ca85d07 ("arm64: add support for kernel mode NEON in interrupt
context") introduced a typing error in fpsimd_save_partial_state ENDPROC.
This patch fixes the typing error.
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: byungchul.park <byungchul.park@lge.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Our break hooks are used to handle brk exceptions from kgdb (and potentially
kprobes if that code ever resurfaces), so don't bother calling them if
the BRK exception comes from userspace.
This prevents userspace from trapping to a kdb shell on systems where
kgdb is enabled and active.
Cc: <stable@vger.kernel.org>
Reported-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Fixes the following sparse warnings:
drivers/video/backlight/ipaq_micro_bl.c:73:24: warning:
symbol 'micro_backlight_device_driver' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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We handle FSCR feature bits (well, TAR only really today) lazily when the guest
starts using them. So when a guest activates the bit and later uses that feature
we enable it for real in hardware.
However, when the guest stops using that bit we don't stop setting it in
hardware. That means we can potentially lose a trap that the guest expects to
happen because it thinks a feature is not active.
This patch adds support to drop TAR when then guest turns it off in FSCR. While
at it it also restricts FSCR access to 64bit systems - 32bit ones don't have it.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Make the link between all the hardware drivers and DRM/KMS interface.
Create the driver itself and make it register all the sub-components.
Use GEM CMA helpers for buffer allocation.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
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The mic mute led on dell laptops is controlled by the wmi driver.
Followed this part being merged to the kernel, we add the mic mute led
hook in the hda driver.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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A VCPU might never stop if it intercepts (for whatever reason) between
"fake interrupt delivery" and execution of the stop function.
Heart of the problem is that SIGP STOP is an interrupt that has to be
processed on every SIE entry until the VCPU finally executes the stop
function.
This problem was made apparent by commit 7dfc63cf977447e09b1072911c2
(KVM: s390: allow only one SIGP STOP (AND STORE STATUS) at a time).
With the old code, the guest could (incorrectly) inject SIGP STOPs
multiple times. The bug of losing a sigp stop exists in KVM before
7dfc63cf97, but it was hidden by Linux guests doing a sigp stop loop.
The new code (rightfully) returns CC=2 and does not queue a new
interrupt.
This patch is a simple fix of the problem. Longterm we are going to
rework that code - e.g. get rid of the action bits and so on.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[some additional patch description]
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Since both ARCH_HI3xxx and ARCH_HIX5HD2 are based on Cortex A9 & they're
using similiar kernel features, make them share the hi3xxx_config.
And add it into multi_v7_defconfig too.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
[olof: also turn on ARCH_HISI in multi_v7]
Signed-off-by: Olof Johansson <olof@lixom.net>
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We do not need to block on ->node_write among different node page writers e.g.
fsync/flush, unless we have a node page writer from write_checkpoint.
So it's better use rw_semaphore instead of mutex type for ->node_write to
promote performance.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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In commit ae91d60ba88ef0bdb1b5e9b2363bd52fc45d2af7, a bug was fixed that
involved converting !x & y to !(x & y). The code below shows the same
pattern, and thus should perhaps be fixed in the same way.
The Coccinelle semantic patch that makes this change is as follows:
// <smpl>
@@ expression E1,E2; @@
(
!E1 & !E2
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- !E1 & E2
+ !(E1 & E2)
)
// </smpl>
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Acked-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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