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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
- virt_to_page/page_address optimisations
- support for NUMA systems described using device-tree
- support for hibernate/suspend-to-disk
- proper support for maxcpus= command line parameter
- detection and graceful handling of AArch64-only CPUs
- miscellaneous cleanups and non-critical fixes
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits)
arm64: do not enforce strict 16 byte alignment to stack pointer
arm64: kernel: Fix incorrect brk randomization
arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
arm64: secondary_start_kernel: Remove unnecessary barrier
arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
arm64: Replace hard-coded values in the pmd/pud_bad() macros
arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
arm64: Fix typo in the pmdp_huge_get_and_clear() definition
arm64: mm: remove unnecessary EXPORT_SYMBOL_GPL
arm64: always use STRICT_MM_TYPECHECKS
arm64: kvm: Fix kvm teardown for systems using the extended idmap
arm64: kaslr: increase randomization granularity
arm64: kconfig: drop CONFIG_RTC_LIB dependency
arm64: make ARCH_SUPPORTS_DEBUG_PAGEALLOC depend on !HIBERNATION
arm64: hibernate: Refuse to hibernate if the boot cpu is offline
arm64: kernel: Add support for hibernate/suspend-to-disk
PM / Hibernate: Call flush_icache_range() on pages restored in-place
arm64: Add new asm macro copy_page
arm64: Promote KERNEL_START/KERNEL_END definitions to a header file
arm64: kernel: Include _AC definition in page.h
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar:
"The main change is the addition of SGI/UV4 support"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
x86/platform/UV: Fix incorrect nodes and pnodes for cpuless and memoryless nodes
x86/platform/UV: Remove Obsolete GRU MMR address translation
x86/platform/UV: Update physical address conversions for UV4
x86/platform/UV: Build GAM reference tables
x86/platform/UV: Support UV4 socket address changes
x86/platform/UV: Add obtaining GAM Range Table from UV BIOS
x86/platform/UV: Add UV4 addressing discovery function
x86/platform/UV: Fold blade info into per node hub info structs
x86/platform/UV: Allocate common per node hub info structs on local node
x86/platform/UV: Move blade local processor ID to the per cpu info struct
x86/platform/UV: Move scir info to the per cpu info struct
x86/platform/UV: Create per cpu info structs to replace per hub info structs
x86/platform/UV: Update MMIOH setup function to work for both UV3 and UV4
x86/platform/UV: Clean up redunduncies after merge of UV4 MMR definitions
x86/platform/UV: Add UV4 Specific MMR definitions
x86/platform/UV: Prep for UV4 MMR updates
x86/platform/UV: Add UV MMR Illegal Access Function
x86/platform/UV: Add UV4 Specific Defines
x86/platform/UV: Add UV Architecture Defines
x86/platform/UV: Add Initial UV4 definitions
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 boot updates from Ingo Molnar:
"The biggest changes in this cycle were:
- prepare for more KASLR related changes, by restructuring, cleaning
up and fixing the existing boot code. (Kees Cook, Baoquan He,
Yinghai Lu)
- simplifly/concentrate subarch handling code, eliminate
paravirt_enabled() usage. (Luis R Rodriguez)"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits)
x86/KASLR: Clarify purpose of each get_random_long()
x86/KASLR: Add virtual address choosing function
x86/KASLR: Return earliest overlap when avoiding regions
x86/KASLR: Add 'struct slot_area' to manage random_addr slots
x86/boot: Add missing file header comments
x86/KASLR: Initialize mapping_info every time
x86/boot: Comment what finalize_identity_maps() does
x86/KASLR: Build identity mappings on demand
x86/boot: Split out kernel_ident_mapping_init()
x86/boot: Clean up indenting for asm/boot.h
x86/KASLR: Improve comments around the mem_avoid[] logic
x86/boot: Simplify pointer casting in choose_random_location()
x86/KASLR: Consolidate mem_avoid[] entries
x86/boot: Clean up pointer casting
x86/boot: Warn on future overlapping memcpy() use
x86/boot: Extract error reporting functions
x86/boot: Correctly bounds-check relocations
x86/KASLR: Clean up unused code from old 'run_size' and rename it to 'kernel_total_size'
x86/boot: Fix "run_size" calculation
x86/boot: Calculate decompression size during boot not build
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
"The main changes in this cycle were:
- MSR access API fixes and enhancements (Andy Lutomirski)
- early exception handling improvements (Andy Lutomirski)
- user-space FS/GS prctl usage fixes and improvements (Andy
Lutomirski)
- Remove the cpu_has_*() APIs and replace them with equivalents
(Borislav Petkov)
- task switch micro-optimization (Brian Gerst)
- 32-bit entry code simplification (Denys Vlasenko)
- enhance PAT handling in enumated CPUs (Toshi Kani)
... and lots of other cleanups/fixlets"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
x86/arch_prctl/64: Restore accidentally removed put_cpu() in ARCH_SET_GS
x86/entry/32: Remove asmlinkage_protect()
x86/entry/32: Remove GET_THREAD_INFO() from entry code
x86/entry, sched/x86: Don't save/restore EFLAGS on task switch
x86/asm/entry/32: Simplify pushes of zeroed pt_regs->REGs
selftests/x86/ldt_gdt: Test set_thread_area() deletion of an active segment
x86/tls: Synchronize segment registers in set_thread_area()
x86/asm/64: Rename thread_struct's fs and gs to fsbase and gsbase
x86/arch_prctl/64: Remove FSBASE/GSBASE < 4G optimization
x86/segments/64: When load_gs_index fails, clear the base
x86/segments/64: When loadsegment(fs, ...) fails, clear the base
x86/asm: Make asm/alternative.h safe from assembly
x86/asm: Stop depending on ptrace.h in alternative.h
x86/entry: Rename is_{ia32,x32}_task() to in_{ia32,x32}_syscall()
x86/asm: Make sure verify_cpu() has a good stack
x86/extable: Add a comment about early exception handlers
x86/msr: Set the return value to zero when native_rdmsr_safe() fails
x86/paravirt: Make "unsafe" MSR accesses unsafe even if PARAVIRT=y
x86/paravirt: Add paravirt_{read,write}_msr()
x86/msr: Carry on after a non-"safe" MSR access fails
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Ingo Molnar:
"Main changes in this cycle were:
- AMD MCE/RAS handling updates (Yazen Ghannam, Aravind
Gopalakrishnan)
- Cleanups (Borislav Petkov)
- logging fix (Tony Luck)"
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/RAS: Add SMCA support to AMD Error Injector
EDAC, mce_amd: Detect SMCA using X86_FEATURE_SMCA
x86/mce: Update AMD mcheck init to use cpu_has() facilities
x86/cpu: Add detection of AMD RAS Capabilities
x86/mce/AMD: Save an indentation level in prepare_threshold_block()
x86/mce/AMD: Disable LogDeferredInMcaStat for SMCA systems
x86/mce/AMD: Log Deferred Errors using SMCA MCA_DE{STAT,ADDR} registers
x86/mce: Detect local MCEs properly
x86/mce: Look in genpool instead of mcelog for pending error records
x86/mce: Detect and use SMCA-specific msr_ops
x86/mce: Define vendor-specific MSR accessors
x86/mce: Carve out writes to MCx_STATUS and MCx_CTL
x86/mce: Grade uncorrected errors for SMCA-enabled systems
x86/mce: Log MCEs after a warm rest on AMD, Fam17h and later
x86/mce: Remove explicit smp_rmb() when starting CPUs sync
x86/RAS: Rename AMD MCE injector config item
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Bigger kernel side changes:
- Add backwards writing capability to the perf ring-buffer code,
which is preparation for future advanced features like robust
'overwrite support' and snapshot mode. (Wang Nan)
- Add pause and resume ioctls for the perf ringbuffer (Wang Nan)
- x86 Intel cstate code cleanups and reorgnization (Thomas Gleixner)
- x86 Intel uncore and CPU PMU driver updates (Kan Liang, Peter
Zijlstra)
- x86 AUX (Intel PT) related enhancements and updates (Alexander
Shishkin)
- x86 MSR PMU driver enhancements and updates (Huang Rui)
- ... and lots of other changes spread out over 40+ commits.
Biggest tooling side changes:
- 'perf trace' features and enhancements. (Arnaldo Carvalho de Melo)
- BPF tooling updates (Wang Nan)
- 'perf sched' updates (Jiri Olsa)
- 'perf probe' updates (Masami Hiramatsu)
- ... plus 200+ other enhancements, fixes and cleanups to tools/
The merge commits, the shortlog and the changelogs contain a lot more
details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (249 commits)
perf/core: Disable the event on a truncated AUX record
perf/x86/intel/pt: Generate PMI in the STOP region as well
perf buildid-cache: Use lsdir() for looking up buildid caches
perf symbols: Use lsdir() for the search in kcore cache directory
perf tools: Use SBUILD_ID_SIZE where applicable
perf tools: Fix lsdir to set errno correctly
perf trace: Move seccomp args beautifiers to tools/perf/trace/beauty/
perf trace: Move flock op beautifier to tools/perf/trace/beauty/
perf build: Add build-test for debug-frame on arm/arm64
perf build: Add build-test for libunwind cross-platforms support
perf script: Fix export of callchains with recursion in db-export
perf script: Fix callchain addresses in db-export
perf script: Fix symbol insertion behavior in db-export
perf symbols: Add dso__insert_symbol function
perf scripting python: Use Py_FatalError instead of die()
perf tools: Remove xrealloc and ALLOC_GROW
perf help: Do not use ALLOC_GROW in add_cmd_list
perf pmu: Make pmu_formats_string to check return value of strbuf
perf header: Make topology checkers to check return value of strbuf
perf tools: Make alias handler to check return value of strbuf
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
"The main changes in this cycle were:
- Drop the unused EFI_SYSTEM_TABLES efi.flags bit and ensure the
ARM/arm64 EFI System Table mapping is read-only (Ard Biesheuvel)
- Add a comment to explain that one of the code paths in the x86/pat
code is only executed for EFI boot (Matt Fleming)
- Improve Secure Boot status checks on arm64 and handle unexpected
errors (Linn Crosetto)
- Remove the global EFI memory map variable 'memmap' as the same
information is already available in efi::memmap (Matt Fleming)
- Add EFI Memory Attribute table support for ARM/arm64 (Ard
Biesheuvel)
- Add EFI GOP framebuffer support for ARM/arm64 (Ard Biesheuvel)
- Add EFI Bootloader Control driver for storing reboot(2) data in EFI
variables for consumption by bootloaders (Jeremy Compostella)
- Add Core EFI capsule support (Matt Fleming)
- Add EFI capsule char driver (Kweh, Hock Leong)
- Unify EFI memory map code for ARM and arm64 (Ard Biesheuvel)
- Add generic EFI support for detecting when firmware corrupts CPU
status register bits (like IRQ flags) when performing EFI runtime
service calls (Mark Rutland)
... and other misc cleanups"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
efivarfs: Make efivarfs_file_ioctl() static
efi: Merge boolean flag arguments
efi/capsule: Move 'capsule' to the stack in efi_capsule_supported()
efibc: Fix excessive stack footprint warning
efi/capsule: Make efi_capsule_pending() lockless
efi: Remove unnecessary (and buggy) .memmap initialization from the Xen EFI driver
efi/runtime-wrappers: Remove ARCH_EFI_IRQ_FLAGS_MASK #ifdef
x86/efi: Enable runtime call flag checking
arm/efi: Enable runtime call flag checking
arm64/efi: Enable runtime call flag checking
efi/runtime-wrappers: Detect firmware IRQ flag corruption
efi/runtime-wrappers: Remove redundant #ifdefs
x86/efi: Move to generic {__,}efi_call_virt()
arm/efi: Move to generic {__,}efi_call_virt()
arm64/efi: Move to generic {__,}efi_call_virt()
efi/runtime-wrappers: Add {__,}efi_call_virt() templates
efi/arm-init: Reserve rather than unmap the memory map for ARM as well
efi: Add misc char driver interface to update EFI firmware
x86/efi: Force EFI reboot to process pending capsules
efi: Add 'capsule' update support
...
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Pull networking fixes from David Miller:
1) Fix mvneta/bm dependencies, from Arnd Bergmann.
2) RX completion hw bug workaround in bnxt_en, from Michael Chan.
3) Kernel pointer leak in nf_conntrack, from Linus.
4) Hoplimit route attribute limits not enforced properly, from Paolo
Abeni.
5) qlcnic driver NULL deref fix from Dan Carpenter.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
arm64: bpf: jit JMP_JSET_{X,K}
net/route: enforce hoplimit max value
nf_conntrack: avoid kernel pointer value leak in slab name
drivers: net: xgene: fix register offset
drivers: net: xgene: fix statistics counters race condition
drivers: net: xgene: fix ununiform latency across queues
drivers: net: xgene: fix sharing of irqs
drivers: net: xgene: fix IPv4 forward crash
xen-netback: fix extra_info handling in xenvif_tx_err()
net: mvneta: bm: fix dependencies again
bnxt_en: Add workaround to detect bad opaque in rx completion (part 2)
bnxt_en: Add workaround to detect bad opaque in rx completion (part 1)
qlcnic: potential NULL dereference in qlcnic_83xx_get_minidump_template()
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This patch fixes SG_RX_DV_GATE_REG_0_ADDR register offset
and ring state field lengths.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the race condition on updating the statistics
counters by moving the counters to the ring structure.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch addresses ununiform latency across queues by adding
more queues to match with, upto number of CPU cores.
Also, number of interrupts are increased and the channel numbers
are reordered.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since hardware doesn't allow sharing of interrupts,
this patch fixes the same by removing IRQF_SHARED flag.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the crash observed during IPv4 forward test by
setting the drop field in the dbptr.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A small collection of driver specific fixes for the regulator
subsysetem:
- Fix handling of probe deferral for GPIO regulators
- Fix a typo in the module alias for DA9053
- Fix the definition of BUCK9 in the S2MPS11 driver. This change
looks larger than it is because an irregularity in the hardware
means that the macro used to define bucks 6-10 needs duplicating
and tweaking to have a separate macro for 9
- Fix a series of errors in the definitions of the LDOs the AXP20x
regulators, some of which had always been present and some of which
were introduced in the merge window"
* tag 'regulator-fix-v4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: da9063: Correct module alias prefix to fix module autoloading
regulator: axp20x: Fix axp22x ldo_io registration error on cold boot
regulator: axp20x: Fix axp22x ldo_io voltage ranges
regulator: axp20x: Fix LDO4 linear voltage range
regulator: s2mps11: Fix invalid selector mask and voltages for buck9
regulator: gpio: check return value of of_get_named_gpio
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"This is rather too late so it'd be completely understandable if you
don't want to pull it at this point, I had thought I'd sent this
earlier but it seems I didn't. Everything has been in -next for some
time now.
The main set of fixes here are mopping up some more issues with MMIO,
fixing handling of endianness configuration in DT (which just wasn't
working at all) and cases where the register and value endianness are
different.
There is also a fix for bulk register reads on SPMI"
* tag 'regmap-fix-v4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: spmi: Fix regmap_spmi_ext_read in multi-byte case
regmap: mmio: Explicitly say little endian is the defualt in the bus config
regmap: mmio: Parse endianness definitions from DT
regmap: Fix implicit inclusion of device.h
regmap: mmio: Fix value endianness selection
regmap: fix documentation to match code
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fix from Mauro Carvalho Chehab:
"A revert fixing a breakage that caused an OOPS on all VB2-based DVB
drivers.
We already have a proper fix, but it sounds safer to keep it being
tested for a while and not hurry, to avoid the risk of another
regression, specially since this is meant to be c/c to stable. So,
for now, let's just revert the broken patch"
* tag 'media/v4.6-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
Revert "[media] videobuf2-v4l2: Verify planes array in buffer dequeueing"
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Pull drm fixes from Dave Airlie:
"A bunch of radeon displayport mode setting fixes, and some misc i915
fixes.
There is one revert, the MST audio code in i915 was causing some
oopses, so we've decided just to drop it until next kernel when we can
fix it properly"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/amdgpu: fix DP mode validation
drm/radeon: fix DP mode validation
drm/i915: Bail out of pipe config compute loop on LPT
drm/radeon: fix PLL sharing on DCE6.1 (v2)
drm/radeon: fix DP link training issue with second 4K monitor
Revert "drm/i915: start adding dp mst audio"
drm/i915/bdw: Add missing delay during L3 SQC credit programming
drm/i915/lvds: separate border enable readout from panel fitter
drm/i915: Update CDCLK_FREQ register on BDW after changing cdclk frequency
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'regulator/fix/da9063', 'regulator/fix/gpio' and 'regulator/fix/s2mps11' into regulator-linus
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'regmap/fix/spmi' into regmap-linus
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Patch 562abd39 "xen-netback: support multiple extra info fragments
passed from frontend" contained a mistake which can result in an in-
correct number of responses being generated when handling errors
encountered when processing packets containing extra info fragments.
This patch fixes the problem.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reported-by: Jan Beulich <JBeulich@suse.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I tried to fix this before, but my previous fix was incomplete
and we can still get the same link error in randconfig builds
because of the way that Kconfig treats the
default y if MVNETA=y && MVNETA_BM_ENABLE
line that does not actually trigger when MVNETA_BM_ENABLE=m,
unlike I intended.
Changing the line to use MVNETA_BM_ENABLE!=n however has
the desired effect and hopefully makes all configurations
work as expected.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 019ded3aa7c9 ("net: mvneta: bm: clarify dependencies")
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: twl6040-vibra - fix DT node memory management
Input: max8997-haptic - fix NULL pointer dereference
Input: byd - update copyright header
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Switch the order of the loops to walk the rates on the top
so we exhaust all DP 1.1 rate/lane combinations before trying
DP 1.2 rate/lane combos.
This avoids selecting rates that are supported by the monitor,
but not the connector leading to valid modes getting rejected.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=95206
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Switch the order of the loops to walk the rates on the top
so we exhaust all DP 1.1 rate/lane combinations before trying
DP 1.2 rate/lane combos.
This avoids selecting rates that are supported by the monitor,
but not the connector leading to valid modes getting rejected.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=95206
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fix from Linus Walleij:
"A single last pin control fix for v4.6. t's tagged for stable and
only hits a single driver with two added lines so should be safe.
Tested in linux-next.
- The pull up/down logic for the AT91 PIO4 controller was tilted: we
need to mask the reverse pull when unmasking a pull direction.
Setting both pull up & pull down is illegal and makes no sense"
* tag 'pinctrl-v4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: at91-pio4: fix pull-up/down logic
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Use X86_FEATURE_SMCA when detecting if SMCA is available instead of
directly using CPUID 0x80000007_EBX.
Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1462971509-3856-7-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Add detection and recovery code when the hardware returned opaque value
does not match the expected consumer index. Once the issue is detected,
we skip the processing of all RX and LRO/GRO packets. These completion
entries are discarded without sending the SKB to the stack and without
producing new buffers. The function will be reset from a workqueue.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a rare hardware bug that can cause a bad opaque value in the RX
or TPA completion. When this happens, the hardware may have used the
same buffer twice for 2 rx packets. In addition, the driver will also
crash later using the bad opaque as the index into the ring.
The rx opaque value is predictable and is always monotonically increasing.
The workaround is to keep track of the expected next opaque value and
compare it with the one returned by hardware during RX and TPA start
completions. If they miscompare, we will not process any more RX and
TPA completions and exit NAPI. We will then schedule a workqueue to
reset the function.
This patch adds the logic to keep track of the next rx consumer index.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If qlcnic_fw_cmd_get_minidump_temp() fails then "fw_dump->tmpl_hdr" is
NULL or possibly freed. It can lead to an oops later.
Fixes: d01a6d3c8ae1 ('qlcnic: Add support to enable capability to extend minidump for iSCSI')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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into drm-fixes
Two some radeon display fixes.
* 'drm-fixes-4.6' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix PLL sharing on DCE6.1 (v2)
drm/radeon: fix DP link training issue with second 4K monitor
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git://anongit.freedesktop.org/drm-intel into drm-fixes
Misc intel fixes, reverting MST audio which was causing oops for now.
* tag 'drm-intel-fixes-2016-05-11' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Bail out of pipe config compute loop on LPT
Revert "drm/i915: start adding dp mst audio"
drm/i915/bdw: Add missing delay during L3 SQC credit programming
drm/i915/lvds: separate border enable readout from panel fitter
drm/i915: Update CDCLK_FREQ register on BDW after changing cdclk frequency
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This patch causes a Kernel panic when called on a DVB driver.
This was also reported by David R <david@unsolicited.net>:
May 7 14:47:35 server kernel: [ 501.247123] BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
May 7 14:47:35 server kernel: [ 501.247239] IP: [<ffffffffa0222c71>] __verify_planes_array.isra.3+0x1/0x80 [videobuf2_v4l2]
May 7 14:47:35 server kernel: [ 501.247354] PGD cae6f067 PUD ca99c067 PMD 0
May 7 14:47:35 server kernel: [ 501.247426] Oops: 0000 [#1] SMP
May 7 14:47:35 server kernel: [ 501.247482] Modules linked in: xfs tun xt_connmark xt_TCPMSS xt_tcpmss xt_owner xt_REDIRECT nf_nat_redirect xt_nat ipt_MASQUERADE nf_nat_masquerade_ipv4 ts_kmp ts_bm xt_string ipt_REJECT nf_reject_ipv4 xt_recent xt_conntrack xt_multiport xt_pkttype xt_tcpudp xt_mark nf_log_ipv4 nf_log_common xt_LOG xt_limit iptable_mangle iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_filter ip_tables ip6table_filter ip6_tables x_tables pppoe pppox dm_crypt ts2020 regmap_i2c ds3000 cx88_dvb dvb_pll cx88_vp3054_i2c mt352 videobuf2_dvb cx8800 cx8802 cx88xx pl2303 tveeprom videobuf2_dma_sg ppdev videobuf2_memops videobuf2_v4l2 videobuf2_core dvb_usb_digitv snd_hda_codec_via snd_hda_codec_hdmi snd_hda_codec_generic radeon dvb_usb snd_hda_intel amd64_edac_mod serio_raw snd_hda_codec edac_core fbcon k10temp bitblit softcursor snd_hda_core font snd_pcm_oss i2c_piix4 snd_mixer_oss tileblit drm_kms_helper syscopyarea snd_pcm snd_seq_dummy sysfillrect snd_seq_oss sysimgblt fb_sys_fops ttm snd_seq_midi r8169 snd_rawmidi drm snd_seq_midi_event e1000e snd_seq snd_seq_device snd_timer snd ptp pps_core i2c_algo_bit soundcore parport_pc ohci_pci shpchp tpm_tis tpm nfsd auth_rpcgss oid_registry hwmon_vid exportfs nfs_acl mii nfs bonding lockd grace lp sunrpc parport
May 7 14:47:35 server kernel: [ 501.249564] CPU: 1 PID: 6889 Comm: vb2-cx88[0] Not tainted 4.5.3 #3
May 7 14:47:35 server kernel: [ 501.249644] Hardware name: System manufacturer System Product Name/M4A785TD-V EVO, BIOS 0211 07/08/2009
May 7 14:47:35 server kernel: [ 501.249767] task: ffff8800aebf3600 ti: ffff8801e07a0000 task.ti: ffff8801e07a0000
May 7 14:47:35 server kernel: [ 501.249861] RIP: 0010:[<ffffffffa0222c71>] [<ffffffffa0222c71>] __verify_planes_array.isra.3+0x1/0x80 [videobuf2_v4l2]
May 7 14:47:35 server kernel: [ 501.250002] RSP: 0018:ffff8801e07a3de8 EFLAGS: 00010086
May 7 14:47:35 server kernel: [ 501.250071] RAX: 0000000000000283 RBX: ffff880210dc5000 RCX: 0000000000000283
May 7 14:47:35 server kernel: [ 501.250161] RDX: ffffffffa0222cf0 RSI: 0000000000000000 RDI: ffff880210dc5014
May 7 14:47:35 server kernel: [ 501.250251] RBP: ffff8801e07a3df8 R08: ffff8801e07a0000 R09: 0000000000000000
May 7 14:47:35 server kernel: [ 501.250348] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8800cda2a9d8
May 7 14:47:35 server kernel: [ 501.250438] R13: ffff880210dc51b8 R14: 0000000000000000 R15: ffff8800cda2a828
May 7 14:47:35 server kernel: [ 501.250528] FS: 00007f5b77fff700(0000) GS:ffff88021fc40000(0000) knlGS:00000000adaffb40
May 7 14:47:35 server kernel: [ 501.250631] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
May 7 14:47:35 server kernel: [ 501.250704] CR2: 0000000000000004 CR3: 00000000ca19d000 CR4: 00000000000006e0
May 7 14:47:35 server kernel: [ 501.250794] Stack:
May 7 14:47:35 server kernel: [ 501.250822] ffff8801e07a3df8 ffffffffa0222cfd ffff8801e07a3e70 ffffffffa0236beb
May 7 14:47:35 server kernel: [ 501.250937] 0000000000000283 ffff8801e07a3e94 0000000000000000 0000000000000000
May 7 14:47:35 server kernel: [ 501.251051] ffff8800aebf3600 ffffffff8108d8e0 ffff8801e07a3e38 ffff8801e07a3e38
May 7 14:47:35 server kernel: [ 501.251165] Call Trace:
May 7 14:47:35 server kernel: [ 501.251200] [<ffffffffa0222cfd>] ? __verify_planes_array_core+0xd/0x10 [videobuf2_v4l2]
May 7 14:47:35 server kernel: [ 501.251306] [<ffffffffa0236beb>] vb2_core_dqbuf+0x2eb/0x4c0 [videobuf2_core]
May 7 14:47:35 server kernel: [ 501.251398] [<ffffffff8108d8e0>] ? prepare_to_wait_event+0x100/0x100
May 7 14:47:35 server kernel: [ 501.251482] [<ffffffffa023855b>] vb2_thread+0x1cb/0x220 [videobuf2_core]
May 7 14:47:35 server kernel: [ 501.251569] [<ffffffffa0238390>] ? vb2_core_qbuf+0x230/0x230 [videobuf2_core]
May 7 14:47:35 server kernel: [ 501.251662] [<ffffffffa0238390>] ? vb2_core_qbuf+0x230/0x230 [videobuf2_core]
May 7 14:47:35 server kernel: [ 501.255982] [<ffffffff8106f984>] kthread+0xc4/0xe0
May 7 14:47:35 server kernel: [ 501.260292] [<ffffffff8106f8c0>] ? kthread_park+0x50/0x50
May 7 14:47:35 server kernel: [ 501.264615] [<ffffffff81697a5f>] ret_from_fork+0x3f/0x70
May 7 14:47:35 server kernel: [ 501.268962] [<ffffffff8106f8c0>] ? kthread_park+0x50/0x50
May 7 14:47:35 server kernel: [ 501.273216] Code: 0d 01 74 16 48 8b 46 28 48 8b 56 30 48 89 87 d0 01 00 00 48 89 97 d8 01 00 00 5d c3 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 <8b> 46 04 48 89 e5 8d 50 f7 31 c0 83 fa 01 76 02 5d c3 48 83 7e
May 7 14:47:35 server kernel: [ 501.282146] RIP [<ffffffffa0222c71>] __verify_planes_array.isra.3+0x1/0x80 [videobuf2_v4l2]
May 7 14:47:35 server kernel: [ 501.286391] RSP <ffff8801e07a3de8>
May 7 14:47:35 server kernel: [ 501.290619] CR2: 0000000000000004
May 7 14:47:35 server kernel: [ 501.294786] ---[ end trace b2b354153ccad110 ]---
This reverts commit 2c1f6951a8a82e6de0d82b1158b5e493fc6c54ab.
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org
Fixes: 2c1f6951a8a8 ("[media] videobuf2-v4l2: Verify planes array in buffer dequeueing")
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a couple of small fixes: one is a potential uninitialised
error variable in the alua code, potentially causing spurious failures
and the other is a problem caused by the conversion of SCSI to
hostwide tags which resulted in the qla1280 driver always failing in
host initialisation"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
qla1280: Don't allocate 512kb of host tags
scsi_dh_alua: uninitialized variable in alua_rtpg()
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Pull networking fixes from David Miller:
"Hopefully the last round of fixes this release, fingers crossed :)
1) Initialize static nf_conntrack_locks_all_lock properly, from
Florian Westphal.
2) Need to cancel pending work when destroying IDLETIMER entries,
from Liping Zhang.
3) Fix TX param usage when sending TSO over iwlwifi devices, from
Emmanuel Grumbach.
4) NFACCT quota params not validated properly, from Phil Turnbull.
5) Resolve more glibc vs. kernel header conflicts, from Mikko
Tapeli.
6) Missing IRQ free in ravb_close(), from Geert Uytterhoeven.
7) Fix infoleak in x25, from Kangjie Lu.
8) Similarly in thunderx driver, from Heinrich Schuchardt.
9) tc_ife.h uapi header not exported properly, from Jamal Hadi Salim.
10) Don't reenable PHY interreupts if device is in polling mode, from
Shaohui Xie.
11) Packet scheduler actions late binding was not being handled
properly at all, from Jamal Hadi Salim.
12) Fix binding of conntrack entries to helpers in openvswitch, from
Joe Stringer"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
gre: do not keep the GRE header around in collect medata mode
openvswitch: Fix cached ct with helper.
net sched: ife action fix late binding
net sched: skbedit action fix late binding
net sched: simple action fix late binding
net sched: mirred action fix late binding
net sched: ipt action fix late binding
net sched: vlan action fix late binding
net: phylib: fix interrupts re-enablement in phy_start
tcp: refresh skb timestamp at retransmit time
net: nps_enet: bug fix - handle lost tx interrupts
net: nps_enet: Tx handler synchronization
export tc ife uapi header
net: thunderx: avoid exposing kernel stack
net: fix a kernel infoleak in x25 module
ravb: Add missing free_irq() call to ravb_close()
uapi glibc compat: fix compile errors when glibc net/if.h included before linux/if.h
netfilter: nfnetlink_acct: validate NFACCT_QUOTA parameter
iwlwifi: mvm: don't override the rate with the AMSDU len
netfilter: IDLETIMER: fix race condition when destroy the target
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A bunch of small driver specific fixes that have come up, none of them
remarkable in themselves. One fixes a regression introduced in the
merge window and another two are targetted at stable"
* tag 'spi-fix-v4.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: pxa2xx: Do not detect number of enabled chip selects on Intel SPT
spi: spi-ti-qspi: Handle truncated frames properly
spi: spi-ti-qspi: Fix FLEN and WLEN settings if bits_per_word is overridden
spi: omap2-mcspi: Undo broken fix for dma transfer of vmalloced buffer
spi: spi-fsl-dspi: Fix cs_change handling in message transfer
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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If phy was suspended and is starting, current driver always enable
phy's interrupts, if phy works in polling, phy can raise unexpected
interrupt which will not be handled, the interrupt will block system
enter suspend again. So interrupts should only be re-enabled if phy
works in interrupt.
Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The tx interrupt is of edge type, and in case such interrupt is triggered
while it is masked it will not be handled even after tx interrupts are
re-enabled in the end of NAPI poll.
This will cause tx network to stop in the following scenario:
* Rx is being handled, hence interrupts are masked.
* Tx interrupt is triggered after checking if there is some tx to handle
and before re-enabling the interrupts.
In this situation only rx transaction will release tx requests.
In order to handle the tx that was missed( if there was one ),
a NAPI reschdule was added after enabling the interrupts.
Signed-off-by: Elad Kanfi <eladkan@mellanox.com>
Acked-by: Noam Camus <noamca@mellanox.com>
Acked-by: Gilad Ben-Yossef <giladby@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Below is a description of a possible problematic
sequence. CPU-A is sending a frame and CPU-B handles
the interrupt that indicates the frame was sent. CPU-B
reads an invalid value of tx_packet_sent.
CPU-A CPU-B
----- -----
nps_enet_send_frame
.
.
tx_skb = skb
tx_packet_sent = true
order HW to start tx
.
.
HW complete tx
------> get tx complete interrupt
.
.
if(tx_packet_sent == true)
handle tx_skb
end memory transaction
(tx_packet_sent actually
written)
Furthermore there is a dependency between tx_skb and tx_packet_sent.
There is no assurance that tx_skb contains a valid pointer at CPU B
when it sees tx_packet_sent == true.
Solution:
Initialize tx_skb to NULL and use it to indicate that packet was sent,
in this way tx_packet_sent can be removed.
Add a write memory barrier after setting tx_skb in order to make sure
that it is valid before HW is informed and IRQ is fired.
Fixed sequence will be:
CPU-A CPU-B
----- -----
tx_skb = skb
wmb()
.
.
order HW to start tx
.
.
HW complete tx
------> get tx complete interrupt
.
.
if(tx_skb != NULL)
handle tx_skb
tx_skb = NULL
Signed-off-by: Elad Kanfi <eladkan@mellanox.com>
Acked-by: Noam Camus <noamca@mellanox.com>
Acked-by: Gilad Ben-Yossef <giladby@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"Since v4.5, we've WARNed during resume if a PCI device, including a
Thunderbolt device, was added while we were suspended. A change we
merged for v4.6-rc1 turned that warning into a system hang. These
enumeration patches from Lukas Wunner fix this issue:
- Fix BUG on device attach failure
- Do not treat EPROBE_DEFER as device attach failure"
* tag 'pci-v4.6-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Do not treat EPROBE_DEFER as device attach failure
PCI: Fix BUG on device attach failure
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s/paltform/platform/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
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LPT is pch, so might run into the fdi bandwidth constraint (especially
since it has only 2 lanes). But right now we just force pipe_bpp back
to 24, resulting in a nice loop (which we bail out with a loud
WARN_ON). Fix this.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=93477
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1462264381-7573-1-git-send-email-daniel.vetter@ffwll.ch
(cherry picked from commit f58a1acc7e4a1f37d26124ce4c875c647fbcc61f)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 4.6
iwlwifi
* fix P2P rates (and possibly other issues)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reserved fields should be set to zero to avoid exposing
bits from the kernel stack.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When reopening the network device on ra7795/salvator-x, e.g. after a
DHCP timeout:
IP-Config: Reopening network devices...
genirq: Flags mismatch irq 139. 00000000 (eth0:ch24:emac) vs. 00000000 (eth0:ch24:emac)
ravb e6800000.ethernet eth0: cannot request IRQ eth0:ch24:emac
IP-Config: Failed to open eth0
IP-Config: No network devices available
The "mismatch" is due to requesting an IRQ that is already in use,
while IRQF_PROBE_SHARED wasn't set.
However, the real cause is that ravb_close() doesn't release the R-Car
Gen3-specific secondary IRQ.
Add the missing free_irq() call to fix this.
Fixes: 22d4df8ff3a3cc72 ("ravb: Add support for r8a7795 SoC")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm build fix from Dan Williams:
"A build fix for the usage of HPAGE_SIZE in the last libnvdimm pull
request.
I have taken note that the kbuild robot build success test does not
include results for alpha_allmodconfig. Thanks to Guenter for the
report. It's tagged for -stable since the original fix will land
there and cause build problems"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm, pfn: fix ARCH=alpha allmodconfig build failure
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commit e7ec014a47e4 ("Input: twl6040-vibra - update for device tree support")
made the separate vibra DT node to a subnode of the twl6040.
It now calls of_find_node_by_name() to locate the "vibra" subnode.
This function has a side effect to call of_node_put on() for the twl6040
parent node passed in as a parameter. This causes trouble later on.
Solution: we must call of_node_get() before of_find_node_by_name()
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- bug in ahash SG list walking that may lead to crashes
- resource leak in qat
- missing RSA dependency that causes it to fail"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: rsa - select crypto mgr dependency
crypto: hash - Fix page length clamping in hash walk
crypto: qat - fix adf_ctl_drv.c:undefined reference to adf_init_pf_wq
crypto: qat - fix invalid pf2vf_resp_wq logic
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Pull networking fixes from David Miller:
1) Check klogctl failure correctly, from Colin Ian King.
2) Prevent OOM when under memory pressure in flowcache, from Steffen
Klassert.
3) Fix info leak in llc and rtnetlink ifmap code, from Kangjie Lu.
4) Memory barrier and multicast handling fixes in bnxt_en, from Michael
Chan.
5) Endianness bug in mlx5, from Daniel Jurgens.
6) Fix disconnect handling in VSOCK, from Ian Campbell.
7) Fix locking of netdev list walking in get_bridge_ifindices(), from
Nikolay Aleksandrov.
8) Bridge multicast MLD parser can look at wrong packet offsets, fix
from Linus Lüssing.
9) Fix chip hang in qede driver, from Sudarsana Reddy Kalluru.
10) Fix missing setting of encapsulation before inner handling completes
in udp_offload code, from Jarno Rajahalme.
11) Missing rollbacks during LAG join and flood configuration failures
in mlxsw driver, from Ido Schimmel.
12) Fix error code checks in netxen driver, from Dan Carpenter.
13) Fix key size in new macsec driver, from Sabrina Dubroca.
14) Fix mlx5/VXLAN dependencies, from Arnd Bergmann.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits)
net/mlx5e: make VXLAN support conditional
Revert "net/mlx5: Kconfig: Fix MLX5_EN/VXLAN build issue"
macsec: key identifier is 128 bits, not 64
Documentation/networking: more accurate LCO explanation
macvtap: segmented packet is consumed
tools: bpf_jit_disasm: check for klogctl failure
qede: uninitialized variable in qede_start_xmit()
netxen: netxen_rom_fast_read() doesn't return -1
netxen: reversed condition in netxen_nic_set_link_parameters()
netxen: fix error handling in netxen_get_flash_block()
mlxsw: spectrum: Add missing rollback in flood configuration
mlxsw: spectrum: Fix rollback order in LAG join failure
udp_offload: Set encapsulation before inner completes.
udp_tunnel: Remove redundant udp_tunnel_gro_complete().
qede: prevent chip hang when increasing channels
net: ipv6: tcp reset, icmp need to consider L3 domain
bridge: fix igmp / mld query parsing
net: bridge: fix old ioctl unlocked net device walk
VSOCK: do not disconnect socket when peer has shutdown SEND only
net/mlx4_en: Fix endianness bug in IPV6 csum calculation
...
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