Single caller passes GFP_NOFS. We can get rid of the
gfpflags_allow_blocking checks as NOFS can block but does not recurse to
filesystem through reclaim.
Signed-off-by: David Sterba <dsterba@suse.com>
Similar to __clear_extent_bit, do not fail if the state preallocation
fails as we might not need it. One less BUG_ON.
Signed-off-by: David Sterba <dsterba@suse.com>
Callers pass GFP_NOFS and tests pass GFP_KERNEL, but using NOFS there
does not hurt. No need to pass the flags around.
Signed-off-by: David Sterba <dsterba@suse.com>
Pull thermal fixes from Eduardo Valentin:
"Specifics in this pull request:
- Fixes in mediatek and OF thermal drivers
- Fixes in power_allocator governor
- More fixes of unsigned to int type change in thermal_core.c.
These change have been CI tested using KernelCI bot. \o/"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: fix Mediatek thermal controller build
thermal: consistently use int for trip temp
thermal: fix mtk_thermal build dependency
thermal: minor mtk_thermal.c cleanups
thermal: power_allocator: req_range multiplication should be a 64 bit type
thermal: of: add __init attribute
Here is one patch to wire up the preadv/pwritev system calls in the
generic system call table, which is required for all architectures
that were merged in the last few years, including arm64.
Usually these get merged along with the syscall implementation
or one of the architecture trees, but this time that did not
happen.
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Merge tag 'asm-generic-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic update from Arnd Bergmann:
"Here is one patch to wire up the preadv/pwritev system calls in the
generic system call table, which is required for all architectures
that were merged in the last few years, including arm64.
Usually these get merged along with the syscall implementation or one
of the architecture trees, but this time that did not happen.
Andre and Christoph both sent a version of this patch, I picked the
one I got first"
* tag 'asm-generic-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
generic syscalls: wire up preadv2 and pwritev2 syscalls
These new syscalls are implemented as generic code, so enable them for
architectures like arm64 which use the generic syscall table.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull x86 fixes from Ingo Molnar:
"Misc fixes: two EDAC driver fixes, a Xen crash fix, a HyperV log spam
fix and a documentation fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86 EDAC, sb_edac.c: Take account of channel hashing when needed
x86 EDAC, sb_edac.c: Repair damage introduced when "fixing" channel address
x86/mm/xen: Suppress hugetlbfs in PV guests
x86/doc: Correct limits in Documentation/x86/x86_64/mm.txt
x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances
Pull perf, cpu hotplug and timer fixes from Ingo Molnar:
"perf:
- A single tooling fix for a user-triggerable segfault.
CPU hotplug:
- Fix a CPU hotplug corner case regression, introduced by the recent
hotplug rework
timers:
- Fix a boot hang in the ARM based Tango SoC clocksource driver"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf intel-pt: Fix segfault tracing transactions
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Fix rollback during error-out in __cpu_disable()
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/tango-xtal: Fix boot hang due to incorrect test
Pull locking fixes from Ingo Molnar:
"Misc fixes:
pvqspinlocks:
- an instrumentation fix
futexes:
- preempt-count vs pagefault_disable decouple corner case fix
- futex requeue plist race window fix
- futex UNLOCK_PI transaction fix for a corner case"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
asm-generic/futex: Re-enable preemption in futex_atomic_cmpxchg_inatomic()
futex: Acknowledge a new waiter in counter before plist
futex: Handle unlock_pi race gracefully
locking/pvqspinlock: Fix division by zero in qstat_read()
Pull irq fixes from Ingo Molnar:
"A core irq affinity masks related fix and a MIPS irqchip driver fix"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mips-gic: Don't overrun pcpu_masks array
genirq: Dont allow affinity mask to be updated on IPIs
Pull objtool fixes from Ingo Molnar:
"A handful of objtool fixes: two improvements to how warnings are
printed plus a false positive warning fix, and build environment fix"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Fix Makefile to properly see if libelf is supported
objtool: Detect falling through to the next function
objtool: Add workaround for GCC switch jump table bug
Here are two small sets of patches, both from subsystem trees, USB
gadget and PHY drivers.
Full details are in the shortlog, and they have all been in linux-next
for a while (before I merged them to the USB tree.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / PHY driver fixes from Greg KH:
"Here are two small sets of patches, both from subsystem trees, USB
gadget and PHY drivers.
Full details are in the shortlog, and they have all been in linux-next
for a while (before I merged them to the USB tree)"
* tag 'usb-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: gadget: f_fs: Fix use-after-free
usb: dwc3: gadget: Fix suspend/resume during device mode
usb: dwc3: fix memory leak of dwc->regset
usb: dwc3: core: fix PHY handling during suspend
usb: dwc3: omap: fix up error path on probe()
usb: gadget: composite: Clear reserved fields of SSP Dev Cap
phy: rockchip-emmc: adapt binding to specifiy register offset and length
phy: rockchip-emmc: should be a child device of the GRF
phy: rockchip-dp: should be a child device of the GRF
Here are 3 serial driver fixes for issues that have been reported. Two
are reverts, fixing problems that were in the big TTY/Serial driver
merge in 4.6-rc1, and the last one is a simple bugfix for a regression
that showed up in 4.6-rc1 as well.
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial fixes from Greg KH:
"Here are 3 serial driver fixes for issues that have been reported.
Two are reverts, fixing problems that were in the big TTY/Serial
driver merge in 4.6-rc1, and the last one is a simple bugfix for a
regression that showed up in 4.6-rc1 as well.
All have been in linux-next with no reported issues"
* tag 'tty-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "serial: 8250: Add hardware dependency to RT288X option"
tty/serial/8250: fix RS485 half-duplex RX
Revert "serial-uartlite: Constify uartlite_be/uartlite_le"
- Make the i.MX driver select REGMAP as a dependency
- Fix up the Mediatek debounce time unit
- Fix a real hairy ffs vs __ffs issue in the Single pinctrl driver
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Merge tag 'pinctrl-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some pin control driver fixes came in. One headed for stable and the
other two are just ordinary merge window fixes.
- Make the i.MX driver select REGMAP as a dependency
- Fix up the Mediatek debounce time unit
- Fix a real hairy ffs vs __ffs issue in the Single pinctrl driver"
* tag 'pinctrl-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: single: Fix pcs_parse_bits_in_pinctrl_entry to use __ffs than ffs
pinctrl: mediatek: correct debounce time unit in mtk_gpio_set_debounce
pinctrl: imx: Kconfig: PINCTRL_IMX select REGMAP
- Cache invalidation fix for early CPU boot status update (incorrect
cacheline)
- of_put_node() missing in the spin_table code
- EL1/El2 early init inconsistency when Virtualisation Host Extensions
are present
- RCU warning fix in the arm_pmu.c driver
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Cache invalidation fix for early CPU boot status update (incorrect
cacheline)
- of_put_node() missing in the spin_table code
- EL1/El2 early init inconsistency when Virtualisation Host Extensions
are present
- RCU warning fix in the arm_pmu.c driver
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix EL1/EL2 early init inconsistencies with VHE
drivers/perf: arm-pmu: fix RCU usage on pmu resume from low-power
arm64: spin-table: add missing of_node_put()
arm64: fix invalidation of wrong __early_cpu_boot_status cacheline
- scan_features() updates incorrect bits for REAL_LE from Anton Blanchard
- Update cpu_user_features2 in scan_features() from Anton Blanchard
- Update TM user feature bits in scan_features() from Anton Blanchard
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Merge tag 'powerpc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Three powerpc cpu feature fixes from Anton Blanchard:
- scan_features() updated incorrect bits for REAL_LE
- update cpu_user_features2 in scan_features()
- update TM user feature bits in scan_features()"
* tag 'powerpc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Update TM user feature bits in scan_features()
powerpc: Update cpu_user_features2 in scan_features()
powerpc: scan_features() updates incorrect bits for REAL_LE
The fixes include:
* Two patches to revert the use of default domains in the ARM
SMMU driver. Enabling this caused regressions which need more
thorough fixing. So the regressions are fixed for now by
disabling the use of default domains.
* A fix for a v4.4 regression in the AMD IOMMU driver which
broke devices behind invisible PCIe-to-PCI bridges with IOMMU
enabled.
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Merge tag 'iommu-fixes-v4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"The fixes include:
- Two patches to revert the use of default domains in the ARM SMMU
driver. Enabling this caused regressions which need more thorough
fixing. So the regressions are fixed for now by disabling the use
of default domains.
- A fix for a v4.4 regression in the AMD IOMMU driver which broke
devices behind invisible PCIe-to-PCI bridges with IOMMU enabled"
* tag 'iommu-fixes-v4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/arm-smmu: Don't allocate resources for bypass domains
iommu/arm-smmu: Fix stream-match conflict with IOMMU_DOMAIN_DMA
iommu/amd: Fix checking of pci dma aliases
Pull drm fixes from Dave Airlie:
"i915, nouveau and amdgpu/radeon fixes in this:
nouveau:
Two fixes, one for a regression with dithering and one for a bug
hit by the userspace drivers.
i915:
A few fixes, mostly things heading for stable, two important
skylake GT3/4 hangs.
radeon/amdgpu:
Some audio, suspend/resume and some runtime PM fixes, along with
two patches to harden the userptr ABI a bit"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (24 commits)
drm: Loongson-3 doesn't fully support wc memory
drm/nouveau/gr/gf100: select a stream master to fixup tfb offset queries
amdgpu/uvd: add uvd fw version for amdgpu
drm/amdgpu: forbid mapping of userptr bo through radeon device file
drm/radeon: forbid mapping of userptr bo through radeon device file
drm/amdgpu: bump the afmt limit for CZ, ST, Polaris
drm/amdgpu: use defines for CRTCs and AMFT blocks
drm/dp/mst: Validate port in drm_dp_payload_send_msg()
drm/nouveau/kms: fix setting of default values for dithering properties
drm/radeon: print a message if ATPX dGPU power control is missing
Revert "drm/radeon: disable runtime pm on PX laptops without dGPU power control"
drm/amdgpu/acp: fix resume on CZ systems with AZ audio
drm/radeon: add a quirk for a XFX R9 270X
drm/radeon: print pci revision as well as pci ids on driver load
drm/i915: Use fw_domains_put_with_fifo() on HSW
drm/i915: Force ringbuffers to not be at offset 0
drm/i915: Adjust size of PIPE_CONTROL used for gen8 render seqno write
drm/i915/skl: Fix spurious gpu hang with gt3/gt4 revs
drm/i915/skl: Fix rc6 based gpu/system hang
drm/i915/userptr: Hold mmref whilst calling get-user-pages
...
Again a relatively calm week without surprise: most of fixes are about
HD-audio, including fixes for Cirrus codec regression and a race over
regmap access. Although both change are slightly unintuitive, the
risk of further breakage is quite low, I hope.
Other than that, all the rest are trivial.
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Merge tag 'sound-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Again a relatively calm week without surprise: most of fixes are about
HD-audio, including fixes for Cirrus codec regression and a race over
regmap access. Although both change are slightly unintuitive, the
risk of further breakage is quite low, I hope.
Other than that, all the rest are trivial"
* tag 'sound-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix possible race on regmap bypass flip
ALSA: pcxhr: Fix missing mutex unlock
ALSA: hda - add PCI ID for Intel Broxton-T
ALSA: hda - Keep powering up ADCs on Cirrus codecs
ALSA: hda/realtek - Add ALC3234 headset mode for Optiplex 9020m
ALSA - hda: hdmi check NULL pointer in hdmi_set_chmap
ALSA: hda - Don't trust the reported actual power state
*) make rockchip-dp and rockchip-emmc PHY child device of
GRF
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.6-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus
Kishon writes:
phy: for 4.6-rc
*) make rockchip-dp and rockchip-emmc PHY child device of
GRF
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Haswell and Broadwell can be configured to hash the channel
interleave function using bits [27:12] of the physical address.
On those processor models we must check to see if hashing is
enabled (bit21 of the HASWELL_HASYSDEFEATURE2 register) and
act accordingly.
Based on a patch by patrickg <patrickg@supermicro.com>
Tested-by: Patrick Geary <patrickg@supermicro.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Aristeu Rozanski <arozansk@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-edac@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
In commit:
eb1af3b71f ("Fix computation of channel address")
I switched the "sck_way" variable from holding the log2 value read
from the h/w to instead be the actual number. Unfortunately it
is needed in log2 form when used to shift the address.
Tested-by: Patrick Geary <patrickg@supermicro.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Aristeu Rozanski <arozansk@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-edac@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: eb1af3b71f ("Fix computation of channel address")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
No more major fixes left. Out of the 6 fixes we have
here, 4 are on dwc3.
The most important is the memory leak fix in
dwc3/debugfs.c. We also have a fix for PHY handling
in suspend/resume and a fix for dwc3-omap's error
handling.
Suspend/resume also had the potential to trigger a
NULL pointer dereference on dwc3; that's also fixed
now.
Our good ol' ffs function gets a use-after-free fix
while the generic composite.c layer has a robustness
fix by making sure reserved fields of a possible SSP
device capability descriptor is cleared to 0.
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Merge tag 'fixes-for-v4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.6-rc5
No more major fixes left. Out of the 6 fixes we have
here, 4 are on dwc3.
The most important is the memory leak fix in
dwc3/debugfs.c. We also have a fix for PHY handling
in suspend/resume and a fix for dwc3-omap's error
handling.
Suspend/resume also had the potential to trigger a
NULL pointer dereference on dwc3; that's also fixed
now.
Our good ol' ffs function gets a use-after-free fix
while the generic composite.c layer has a robustness
fix by making sure reserved fields of a possible SSP
device capability descriptor is cleared to 0.
Huge pages are not normally available to PV guests. Not suppressing
hugetlbfs use results in an endless loop of page faults when user mode
code tries to access a hugetlbfs mapped area (since the hypervisor
denies such PTEs to be created, but error indications can't be
propagated out of xen_set_pte_at(), just like for various of its
siblings), and - once killed in an oops like this:
kernel BUG at .../fs/hugetlbfs/inode.c:428!
invalid opcode: 0000 [#1] SMP
...
RIP: e030:[<ffffffff811c333b>] [<ffffffff811c333b>] remove_inode_hugepages+0x25b/0x320
...
Call Trace:
[<ffffffff811c3415>] hugetlbfs_evict_inode+0x15/0x40
[<ffffffff81167b3d>] evict+0xbd/0x1b0
[<ffffffff8116514a>] __dentry_kill+0x19a/0x1f0
[<ffffffff81165b0e>] dput+0x1fe/0x220
[<ffffffff81150535>] __fput+0x155/0x200
[<ffffffff81079fc0>] task_work_run+0x60/0xa0
[<ffffffff81063510>] do_exit+0x160/0x400
[<ffffffff810637eb>] do_group_exit+0x3b/0xa0
[<ffffffff8106e8bd>] get_signal+0x1ed/0x470
[<ffffffff8100f854>] do_signal+0x14/0x110
[<ffffffff810030e9>] prepare_exit_to_usermode+0xe9/0xf0
[<ffffffff814178a5>] retint_user+0x8/0x13
This is CVE-2016-3961 / XSA-174.
Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <JGross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: stable@vger.kernel.org
Cc: xen-devel <xen-devel@lists.xenproject.org>
Link: http://lkml.kernel.org/r/57188ED802000078000E431C@prv-mh.provo.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Correct the size of the module mapping space and the maximum available
physical memory size of current processors.
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: corbet@lwn.net
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/1461310504-15977-1-git-send-email-jgross@suse.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The recent introduction of the hotplug thread which invokes the callbacks on
the plugged cpu, cased the following regression:
If takedown_cpu() fails, then we run into several issues:
1) The rollback of the target cpu states is not invoked. That leaves the smp
threads and the hotplug thread in disabled state.
2) notify_online() is executed due to a missing skip_onerr flag. That causes
that both CPU_DOWN_FAILED and CPU_ONLINE notifications are invoked which
confuses quite some notifiers.
3) The CPU_DOWN_FAILED notification is not invoked on the target CPU. That's
not an issue per se, but it is inconsistent and in consequence blocks the
patches which rely on these states being invoked on the target CPU and not
on the controlling cpu. It also does not preserve the strict call order on
rollback which is problematic for the ongoing state machine conversion as
well.
To fix this we add a rollback flag to the remote callback machinery and invoke
the rollback including the CPU_DOWN_FAILED notification on the remote
cpu. Further mark the notify online state with 'skip_onerr' so we don't get a
double invokation.
This workaround will go away once we moved the unplug invocation to the target
cpu itself.
[ tglx: Massaged changelog and moved the CPU_DOWN_FAILED notifiaction to the
target cpu ]
Fixes: 4cb28ced23 ("cpu/hotplug: Create hotplug threads")
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-s390@vger.kernel.org
Cc: rt@linutronix.de
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>
Link: http://lkml.kernel.org/r/20160408124015.GA21960@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Commit 0881841f7e introduced a regression by inverting a test check
after calling clocksource_mmio_init(). That results on the system to
hang at boot time.
Fix it by inverting the test again.
Fixes: 0881841f7e ("Replace code by clocksource_mmio_init")
Reported-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
When doing a make allmodconfig, I hit the following compile error:
In file included from builtin-check.c:32:0:
elf.h:22:18: fatal error: gelf.h: No such file or directory
compilation terminated.
...
Digging into it, it appears that the $(shell ..) command in the Makefile does
not give the proper result when it fails to find -lelf, and continues to
compile objtool.
Instead, use the "try-run" makefile macro to perform the test. This gives a
proper result for both cases.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Chris J Arges <chris.j.arges@canonical.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: live-patching@vger.kernel.org
Fixes: 442f04c34a ("objtool: Add tool to perform compile-time stack metadata validation")
Link: http://lkml.kernel.org/r/20160420153234.GA24032@home.goodmis.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Misc radeon and amdgpu bug fixes for 4.6.
* 'drm-fixes-4.6' of git://people.freedesktop.org/~agd5f/linux:
amdgpu/uvd: add uvd fw version for amdgpu
drm/amdgpu: forbid mapping of userptr bo through radeon device file
drm/radeon: forbid mapping of userptr bo through radeon device file
drm/amdgpu: bump the afmt limit for CZ, ST, Polaris
drm/amdgpu: use defines for CRTCs and AMFT blocks
drm/radeon: print a message if ATPX dGPU power control is missing
Revert "drm/radeon: disable runtime pm on PX laptops without dGPU power control"
drm/amdgpu/acp: fix resume on CZ systems with AZ audio
drm/radeon: add a quirk for a XFX R9 270X
drm/radeon: print pci revision as well as pci ids on driver load
drm/amdgpu: when suspending, if uvd/vce was running. need to cancel delay work.
drm/radeon: fix initial connector audio value
Was previously always hardcoded to 0.
Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Allowing userptr bo which are basicly a list of page from some vma
(so either anonymous page or file backed page) would lead to serious
corruption of kernel structures and counters (because we overwrite
the page->mapping field when mapping buffer).
This will already block if the buffer was populated before anyone does
try to mmap it because then TTM_PAGE_FLAG_SG would be set in in the
ttm_tt flags. But that flag is check before ttm_tt_populate in the ttm
vm fault handler.
So to be safe just add a check to verify_access() callback.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Allowing userptr bo which are basicly a list of page from some vma
(so either anonymous page or file backed page) would lead to serious
corruption of kernel structures and counters (because we overwrite
the page->mapping field when mapping buffer).
This will already block if the buffer was populated before anyone does
try to mmap it because then TTM_PAGE_FLAG_SG would be set in in the
ttm_tt flags. But that flag is check before ttm_tt_populate in the ttm
vm fault handler.
So to be safe just add a check to verify_access() callback.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fixes array overflow on these chips.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Prerequiste for the next patch which ups the limits.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
With the joys of things running concurrently, there's always a chance
that the port we get passed in drm_dp_payload_send_msg() isn't actually
valid anymore. Because of this, we need to make sure we validate the
reference to the port before we use it otherwise we risk running into
various race conditions. For instance, on the Dell MST monitor I have
here for testing, hotplugging it enough times causes us to kernel panic:
[drm:intel_mst_enable_dp] 1
[drm:drm_dp_update_payload_part2] payload 0 1
[drm:intel_get_hpd_pins] hotplug event received, stat 0x00200000, dig 0x10101011, pins 0x00000020
[drm:intel_hpd_irq_handler] digital hpd port B - short
[drm:intel_dp_hpd_pulse] got hpd irq on port B - short
[drm:intel_dp_check_mst_status] got esi 00 10 00
[drm:drm_dp_update_payload_part2] payload 1 1
general protection fault: 0000 [#1] SMP
…
Call Trace:
[<ffffffffa012b632>] drm_dp_update_payload_part2+0xc2/0x130 [drm_kms_helper]
[<ffffffffa032ef08>] intel_mst_enable_dp+0xf8/0x180 [i915]
[<ffffffffa0310dbd>] haswell_crtc_enable+0x3ed/0x8c0 [i915]
[<ffffffffa030c84d>] intel_atomic_commit+0x5ad/0x1590 [i915]
[<ffffffffa01db877>] ? drm_atomic_set_crtc_for_connector+0x57/0xe0 [drm]
[<ffffffffa01dc4e7>] drm_atomic_commit+0x37/0x60 [drm]
[<ffffffffa0130a3a>] drm_atomic_helper_set_config+0x7a/0xb0 [drm_kms_helper]
[<ffffffffa01cc482>] drm_mode_set_config_internal+0x62/0x100 [drm]
[<ffffffffa01d02ad>] drm_mode_setcrtc+0x3cd/0x4e0 [drm]
[<ffffffffa01c18e3>] drm_ioctl+0x143/0x510 [drm]
[<ffffffffa01cfee0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
[<ffffffff810f79a7>] ? hrtimer_start_range_ns+0x1b7/0x3a0
[<ffffffff81212962>] do_vfs_ioctl+0x92/0x570
[<ffffffff81590852>] ? __sys_recvmsg+0x42/0x80
[<ffffffff81212eb9>] SyS_ioctl+0x79/0x90
[<ffffffff816b4e32>] entry_SYSCALL_64_fastpath+0x1a/0xa4
RIP [<ffffffffa012b026>] drm_dp_payload_send_msg+0x146/0x1f0 [drm_kms_helper]
Which occurs because of the hotplug event shown in the log, which ends
up causing DRM's dp helpers to drop the port we're updating the payload
on and panic.
CC: stable@vger.kernel.org
Signed-off-by: Lyude <cpaul@redhat.com>
Reviewed-by: David Airlie <airlied@linux.ie>
Signed-off-by: Dave Airlie <airlied@redhat.com>
