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- adds coupled cpuidle support for exynos4210
: fix for Exynos platform PM code preparing it for the coupled
cpuidle support and adds coupled cpuidle AFTR mode on exynos4210
Note this is mostrly based on earlier cpuidle-exynos4210 driver
from Daniel Lezcano and Bart updated.
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Merge tag 'samsung-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers
Merge "Samsung CPUIdle updates for v3.20" from Kukjin Kim:
- adds coupled cpuidle support for exynos4210
: fix for Exynos platform PM code preparing it for the coupled
cpuidle support and adds coupled cpuidle AFTR mode on exynos4210
Note this is mostrly based on earlier cpuidle-exynos4210 driver
from Daniel Lezcano and Bart updated.
* tag 'samsung-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
cpuidle: exynos: add coupled cpuidle support for exynos4210
ARM: EXYNOS: apply S5P_CENTRAL_SEQ_OPTION fix only when necessary
Signed-off-by: Olof Johansson <olof@lixom.net>
- Makefile tweak so that knav_qmss and knav_dma can be made loadable
modules without depedency issues.
- Few more exports to support ARM allmodconfig.
- Marking knav_range_setup_acc_irq() local function as static.
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Merge tag 'drivers-soc-ti' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/drivers
Merge "soc: ti: Keystone Navigator SOC driver updates for 3.20" from Santosh
Shilimkar:
Keystone Navigator SOC driver updates for 3.20
- Makefile tweak so that knav_qmss and knav_dma can be made loadable
modules without depedency issues.
- Few more exports to support ARM allmodconfig.
- Marking knav_range_setup_acc_irq() local function as static.
* tag 'drivers-soc-ti' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
soc: ti: knav_qmss_queue: change knav_range_setup_acc_irq to static
soc: ti: knav_qmss_queue: makefile tweak to build as dynamic module
soc: ti: knav_qmss_queue: export API calls for use by user driver
Signed-off-by: Olof Johansson <olof@lixom.net>
The following patch adds coupled cpuidle support for Exynos4210 to
an existing cpuidle-exynos driver. As a result it enables AFTR mode
to be used by default on Exynos4210 without the need to hot unplug
CPU1 first.
The patch is heavily based on earlier cpuidle-exynos4210 driver from
Daniel Lezcano:
http://www.spinics.net/lists/linux-samsung-soc/msg28134.html
Changes from Daniel's code include:
- porting code to current kernels
- fixing it to work on my setup (by using S5P_INFORM register
instead of S5P_VA_SYSRAM one on Revison 1.1 and retrying poking
CPU1 out of the BOOT ROM if necessary)
- fixing rare lockup caused by waiting for CPU1 to get stuck in
the BOOT ROM (CPU hotplug code in arch/arm/mach-exynos/platsmp.c
doesn't require this and works fine)
- moving Exynos specific code to arch/arm/mach-exynos/pm.c
- using cpu_boot_reg_base() helper instead of BOOT_VECTOR macro
- using exynos_cpu_*() helpers instead of accessing registers
directly
- using arch_send_wakeup_ipi_mask() instead of dsb_sev()
(this matches CPU hotplug code in arch/arm/mach-exynos/platsmp.c)
- integrating separate exynos4210-cpuidle driver into existing
exynos-cpuidle one
Cc: Colin Cross <ccross@google.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Commit c2dd114d24 ("ARM: EXYNOS: fix register setup for AFTR mode
code") added S5P_CENTRAL_SEQ_OPTION register setup fix for all
Exynos SoCs to AFTR mode code-path. It turned out that for coupled
cpuidle AFTR mode on Exynos4210 (added by the next patch) applying
this fix causes lockup so enable it in the AFTR mode code-path only
on SoCs that require it (in the suspend code-path it can be always
applied like it was before commit c2dd114d24 ("ARM: EXYNOS: fix
register setup for AFTR mode code")
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Colin Cross <ccross@google.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
knav_range_setup_acc_irq() is used only within the file and should
be defined as static.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Currently configuring qmss and dma as dynamic module creates three .ko
files. knav_qmss_acc.ko and knav_qmss_queue.ko both can't be insmod
because of circular dependency. So combine these two into one module
by changing the makefile.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Until the driver is corrected to stop including mach/at91_ramc.h and using
mach/io.h, it won't compile in a ARCH_MULTIPLATFORM configuration.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Currently only few of the API calls are exported. This creates problem
when the knav* modules are built as modules and another user module
such as netcp_core try to use these API calls and they are also built
as module. This patch export these APIs to address the issue.
This is needed to support allmodconfig for ARM
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Now that we can create and attach to IOMMU domains via of_dma_configure,
make sure we give the architecture a chance to tear them down when a
platform or amba device is destroyed.
Acked-by: Rob Herring <robh@kernel.org>
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
* Fix sparse NULL pointer warning
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Merge tag 'renesas-sh73a0-ccf2-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers
Merge "Second Round of Renesas ARM Based SoC Sh73a0 CCF Updates for v3.20" from
Simon Horman:
Second Round of Renesas ARM Based SoC Sh73a0 CCF Updates for v3.20
* Fix sparse NULL pointer warning
* tag 'renesas-sh73a0-ccf2-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
clk: shmobile: fix sparse NULL pointer warning
Signed-off-by: Olof Johansson <olof@lixom.net>
Allocate udc structure instead of relying on the statically declared
object.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Three compatible strings have been added to the at91_udc driver.
Update the documentation accordingly.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
cpu_is_at91xxx are a set of macros defined in mach/cpu.h and are here used
to detect the SoC we are booting on.
Use compatible string + a caps structure to replace those cpu_is_xxx tests.
Remove all mach and asm headers (which are now unused).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Make use of devm_ functions to simplify probe and remove code.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Since non-DT board support has been removed from the at91 architecture we
can safely remove non-DT handling code.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
The at91_udc driver request 2 clocks, and thus need them to be defined in
the device tree.
Document the clocks and clock-names properties so that everybody use the
correct names.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Now that at91 system clocks forward set_rate request to their parent we
can remove the uclk clock and directly call clk_set_rate on fclk.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
The driver is requesting clock by their global name (those declared in the
clk_lookup list), but this only works with !CCF kernels.
Now that all SoCs have moved to CCF, fix the driver to use local names
(hclk and pclk).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
The SMC registers are used to configure Atmel EBI (External Bus Interface)
to interface with standard memory devices (NAND, NOR, SRAM or specialized
devices like FPGAs).
Declare this memory region as a syscon, so that different drivers can
configure the SMC interface (mostly timing configuration) according to
their need.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Atmel AT91 SoCs have a memory range reserved for SMC (Static Memory
Controller) configuration.
Expose those registers so that drivers can make use of the smc syscon
declared in at91 DTs.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
The Matrix registers are provided to configure internal bus behavior on
at91 SoCs.
Some registers might be accessed by several drivers (e.g. to configure
external memory bus timings), hence we declare this register set as a
syscon device.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
AT91 SoCs have a memory range reserved for internal bus configuration.
Expose those registers so that drivers can make use of the matrix syscon
declared in at91 DTs.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes the following sparse warnings:
drivers/clk/shmobile/clk-sh73a0.c:57:17: warning:
Using plain integer as NULL pointer
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull ARM fixes from Russell King:
"Three small fixes from over the Christmas period, and wiring up the
new execveat syscall for ARM"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error
ARM: 8253/1: mm: use phys_addr_t type in map_lowmem() for kernel mem region
ARM: 8249/1: mm: dump: don't skip regions
ARM: wire up execveat syscall
Pull x86 fixes from Ingo Molnar:
"Misc fixes: two vdso fixes, two kbuild fixes and a boot failure fix
with certain odd memory mappings"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, vdso: Use asm volatile in __getcpu
x86/build: Clean auto-generated processor feature files
x86: Fix mkcapflags.sh bash-ism
x86: Fix step size adjustment during initial memory mapping
x86_64, vdso: Fix the vdso address randomization algorithm
Pull scheduler fixes from Ingo Molnar:
"Misc fixes: group scheduling corner case fix, two deadline scheduler
fixes, effective_load() overflow fix, nested sleep fix, 6144 CPUs
system fix"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix RCU stall upon -ENOMEM in sched_create_group()
sched/deadline: Avoid double-accounting in case of missed deadlines
sched/deadline: Fix migration of SCHED_DEADLINE tasks
sched: Fix odd values in effective_load() calculations
sched, fanotify: Deal with nested sleeps
sched: Fix KMALLOC_MAX_SIZE overflow during cpumask allocation
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, but also some kernel side fixes: uncore PMU
driver fix, user regs sampling fix and an instruction decoder fix that
unbreaks PEBS precise sampling"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/uncore/hsw-ep: Handle systems with only two SBOXes
perf/x86_64: Improve user regs sampling
perf: Move task_pt_regs sampling into arch code
x86: Fix off-by-one in instruction decoder
perf hists browser: Fix segfault when showing callchain
perf callchain: Free callchains when hist entries are deleted
perf hists: Fix children sort key behavior
perf diff: Fix to sort by baseline field by default
perf list: Fix --raw-dump option
perf probe: Fix crash in dwarf_getcfi_elf
perf probe: Fix to fall back to find probe point in symbols
perf callchain: Append callchains only when requested
perf ui/tui: Print backtrace symbols when segfault occurs
perf report: Show progress bar for output resorting
Pull locking fixes from Ingo Molnar:
"A liblockdep fix and a mutex_unlock() mutex-debugging fix"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
mutex: Always clear owner field upon mutex_unlock()
tools/liblockdep: Fix debug_check thinko in mutex destroy
Fix for BUG_ON(anon_vma->degree) splashes in unlink_anon_vmas() ("kernel
BUG at mm/rmap.c:399!") caused by commit 7a3ef208e6 ("mm: prevent
endless growth of anon_vma hierarchy")
Anon_vma_clone() is usually called for a copy of source vma in
destination argument. If source vma has anon_vma it should be already
in dst->anon_vma. NULL in dst->anon_vma is used as a sign that it's
called from anon_vma_fork(). In this case anon_vma_clone() finds
anon_vma for reusing.
Vma_adjust() calls it differently and this breaks anon_vma reusing
logic: anon_vma_clone() links vma to old anon_vma and updates degree
counters but vma_adjust() overrides vma->anon_vma right after that. As
a result final unlink_anon_vmas() decrements degree for wrong anon_vma.
This patch assigns ->anon_vma before calling anon_vma_clone().
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Reported-and-tested-by: Chris Clayton <chris2553@googlemail.com>
Reported-and-tested-by: Oded Gabbay <oded.gabbay@amd.com>
Reported-and-tested-by: Chih-Wei Huang <cwhuang@android-x86.org>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Daniel Forrest <dan.forrest@ssec.wisc.edu>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org # to match back-porting of 7a3ef208e6
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit fee7e49d45 ("mm: propagate error from stack expansion even for
guard page") made sure that we return the error properly for stack
growth conditions. It also theorized that counting the guard page
towards the stack limit might break something, but also said "Let's see
if anybody notices".
Somebody did notice. Apparently android-x86 sets the stack limit very
close to the limit indeed, and including the guard page in the rlimit
check causes the android 'zygote' process problems.
So this adds the (fairly trivial) code to make the stack rlimit check be
against the actual real stack size, rather than the size of the vma that
includes the guard page.
Reported-and-tested-by: Chih-Wei Huang <cwhuang@android-x86.org>
Cc: Jay Foad <jay.foad@gmail.com>
Cc: stable@kernel.org # to match back-porting of fee7e49d45
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Just one fix: a qlogic busy wait regression.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"Just one fix: a qlogic busy wait regression"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
qla2xxx: fix busy wait regression
All a few small regression or stable fixes: a Nvidia HDMI ID addition,
a regression fix for CAIAQ stream count, a typo fix for GPIO setup
with STAC/IDT HD-audio codecs, and a Fireworks big-endian fix.
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Merge tag 'sound-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"All a few small regression or stable fixes: a Nvidia HDMI ID addition,
a regression fix for CAIAQ stream count, a typo fix for GPIO setup
with STAC/IDT HD-audio codecs, and a Fireworks big-endian fix"
* tag 'sound-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: fireworks: fix an endianness bug for transaction length
ALSA: hda - Add new GPU codec ID 0x10de0072 to snd-hda
ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs
ALSA: snd-usb-caiaq: fix stream count check
Pull HID updates from Jiri Kosina:
- bounds checking fixes in logitech and roccat drivers, from Peter Wu
and Dan Carpenter
- double-kfree fix in i2c-hid driver on bus shutdown, from Mika
Westerberg
- a couple of various small driver fixes
- a few device id additions
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
HID: Add a new id 0x501a for Genius MousePen i608X
HID: logitech-hidpp: prefix the name with "Logitech"
HID: logitech-hidpp: avoid unintended fall-through
HID: Allow HID_BATTERY_STRENGTH to be enabled
HID: i2c-hid: Do not free buffers in i2c_hid_stop()
HID: add battery quirk for USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO keyboard
HID: logitech-hidpp: check WTP report length
HID: logitech-dj: check report length
Pull drm fixes from Dave Airlie:
"I'm briefly working between holidays and LCA, so this is close to a
couple of weeks of fixes,
Two sets of amdkfd fixes, this is a new feature this kernel, and this
pull fixes a few issues since it got merged, ordering when built-in to
kernel and also the iommu vs gpu ordering patch, it also reworks the
ioctl before the initial release.
Otherwise:
- radeon: some misc fixes all over, hdmi, 4k, dpm
- nouveau: mcp77 init fixes, oops fix, bug on fix, msi fix
- i915: power fixes, revert VGACNTR patch
Probably be quiteer next week since I'll be at LCA anyways"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (33 commits)
drm/amdkfd: rewrite kfd_ioctl() according to drm_ioctl()
drm/amdkfd: reformat IOCTL definitions to drm-style
drm/amdkfd: Do copy_to/from_user in general kfd_ioctl()
drm/radeon: integer underflow in radeon_cp_dispatch_texture()
drm/radeon: adjust default bapm settings for KV
drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw
drm/radeon: fix sad_count check for dce3
drm/radeon: KV has three PPLLs (v2)
drm/amdkfd: unmap VMID<-->PASID when relesing VMID (non-HWS)
drm/radeon: Init amdkfd only if it was compiled
amdkfd: actually allocate longs for the pasid bitmask
drm/nouveau/nouveau: Do not BUG_ON(!spin_is_locked()) on UP
drm/nv4c/mc: disable msi
drm/nouveau/fb/ram/mcp77: enable NISO poller
drm/nouveau/fb/ram/mcp77: use carveout reg to determine size
drm/nouveau/fb/ram/mcp77: subclass nouveau_ram
drm/nouveau: wake up the card if necessary during gem callbacks
drm/nouveau/device: Add support for GK208B, resolves bug 86935
drm/nouveau: fix missing return statement in nouveau_ttm_tt_unpopulate
drm/nouveau/bios: fix oops on pre-nv50 chipsets
...
- Fix early mapping fixmap corruption by EFI runtime services
- Fix __NR_compat_syscalls off-by-one
- Add missing sanity checks for some 32-bit registers
- Add some missing #includes which we get transitively
- Remove unused prepare_to_copy() macro
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Here is a handful of minor arm64 fixes discovered and fixed over the
Christmas break. The main part is adding some missing #includes that
we seem to be getting transitively but have started causing problems
in -next.
- Fix early mapping fixmap corruption by EFI runtime services
- Fix __NR_compat_syscalls off-by-one
- Add missing sanity checks for some 32-bit registers
- Add some missing #includes which we get transitively
- Remove unused prepare_to_copy() macro"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/efi: add missing call to early_ioremap_reset()
arm64: fix missing asm/io.h include in kernel/smp_spin_table.c
arm64: fix missing asm/alternative.h include in kernel/module.c
arm64: fix missing linux/bug.h include in asm/arch_timer.h
arm64: fix missing asm/pgtable-hwdef.h include in asm/processor.h
arm64: sanity checks: add missing AArch32 registers
arm64: Remove unused prepare_to_copy()
arm64: Correct __NR_compat_syscalls for bpf
Cleanups
kdb: Remove unused command flags, repeat flags and KDB_REPEAT_NONE
Fixes
kgdb/kdb: Allow access on a single core, if a CPU round up is deemed
impossible, which will allow inspection of the now "trashed" kernel
kdb: Add enable mask for the command groups
kdb: access controls to restrict sensitive commands
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Merge tag 'for_linus-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb
Pull kgdb/kdb fixes from Jason Wessel:
"These have been around since 3.17 and in kgdb-next for the last 9
weeks and some will go back to -stable.
Summary of changes:
Cleanups
- kdb: Remove unused command flags, repeat flags and KDB_REPEAT_NONE
Fixes
- kgdb/kdb: Allow access on a single core, if a CPU round up is
deemed impossible, which will allow inspection of the now "trashed"
kernel
- kdb: Add enable mask for the command groups
- kdb: access controls to restrict sensitive commands"
* tag 'for_linus-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb:
kernel/debug/debug_core.c: Logging clean-up
kgdb: timeout if secondary CPUs ignore the roundup
kdb: Allow access to sensitive commands to be restricted by default
kdb: Add enable mask for groups of commands
kdb: Categorize kdb commands (similar to SysRq categorization)
kdb: Remove KDB_REPEAT_NONE flag
kdb: Use KDB_REPEAT_* values as flags
kdb: Rename kdb_register_repeat() to kdb_register_flags()
kdb: Rename kdb_repeat_t to kdb_cmdflags_t, cmd_repeat to cmd_flags
kdb: Remove currently unused kdbtab_t->cmd_flags
Pull two nfsd bugfixes from Bruce Fields.
* 'for-3.19' of git://linux-nfs.org/~bfields/linux:
rpc: fix xdr_truncate_encode to handle buffer ending on page boundary
nfsd: fix fi_delegees leak when fi_had_conflict returns true
Pull two Ceph fixes from Sage Weil:
"These are both pretty trivial: a sparse warning fix and size_t printk
thing"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: fix sparse endianness warnings
ceph: use %zu for len in ceph_fill_inline_data()
Pull btrfs fixes from Chris Mason:
"None of these are huge, but my commit does fix a regression from 3.18
that could cause lost files during log replay.
This also adds Dave Sterba to the list of Btrfs maintainers. It
doesn't mean we're doing things differently, but Dave has really been
helping with the maintainer workload for years"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: don't delay inode ref updates during log replay
Btrfs: correctly get tree level in tree_backref_for_extent
Btrfs: call inode_dec_link_count() on mkdir error path
Btrfs: abort transaction if we don't find the block group
Btrfs, scrub: uninitialized variable in scrub_extent_for_parity()
Btrfs: add more maintainers
Merge misc fixes from Andrew Morton:
"12 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed
memcg: fix destination cgroup leak on task charges migration
mm: memcontrol: switch soft limit default back to infinity
mm/debug_pagealloc: remove obsolete Kconfig options
vfs: renumber FMODE_NONOTIFY and add to uniqueness check
arch/blackfin/mach-bf533/boards/stamp.c: add linux/delay.h
ocfs2: fix the wrong directory passed to ocfs2_lookup_ino_from_name() when link file
MAINTAINERS: update rydberg's addresses
mm: protect set_page_dirty() from ongoing truncation
mm: prevent endless growth of anon_vma hierarchy
exit: fix race between wait_consider_task() and wait_task_zombie()
ocfs2: remove bogus check in dlm_process_recovery_data
In v3.19-rc3 tree when CONFIG_ARM_LPAE and CONFIG_DEBUG_RODATA are enabled
image failed to compile with the following error:
arch/arm/mm/init.c:661:14: error: ‘PMD_SECT_RDONLY’ undeclared here (not in a function)
It seems that '80d6b0c ARM: mm: allow text and rodata sections to be read-only'
and 'ded9477 ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE'
commits crossed. 80d6b0c uses PMD_SECT_RDONLY macro but ded9477 renames it
and uses software bits L_PMD_SECT_RDONLY instead.
Fix is to use L_PMD_SECT_RDONLY instead PMD_SECT_RDONLY as ded9477 does in
another places.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This is a static checker fix. We write some binary settings to the
sysfs file. One of the settings is the "->startup_profile". There
isn't any checking to make sure it fits into the
pyra->profile_settings[] array in the profile_activated() function.
I added a check to pyra_sysfs_write_settings() in both places because
I wasn't positive that the other callers were correct.
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Currently if DEBUG_MUTEXES is enabled, the mutex->owner field is only
cleared iff debug_locks is active. This exposes a race to other users of
the field where the mutex->owner may be still set to a stale value,
potentially upsetting mutex_spin_on_owner() among others.
References: https://bugs.freedesktop.org/show_bug.cgi?id=87955
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1420540175-30204-1-git-send-email-chris@chris-wilson.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The dl_runtime_exceeded() function is supposed to ckeck if
a SCHED_DEADLINE task must be throttled, by checking if its
current runtime is <= 0. However, it also checks if the
scheduling deadline has been missed (the current time is
larger than the current scheduling deadline), further
decreasing the runtime if this happens.
This "double accounting" is wrong:
- In case of partitioned scheduling (or single CPU), this
happens if task_tick_dl() has been called later than expected
(due to small HZ values). In this case, the current runtime is
also negative, and replenish_dl_entity() can take care of the
deadline miss by recharging the current runtime to a value smaller
than dl_runtime
- In case of global scheduling on multiple CPUs, scheduling
deadlines can be missed even if the task did not consume more
runtime than expected, hence penalizing the task is wrong
This patch fix this problem by throttling a SCHED_DEADLINE task
only when its runtime becomes negative, and not modifying the runtime
Signed-off-by: Luca Abeni <luca.abeni@unitn.it>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@gmail.com>
Cc: <stable@vger.kernel.org>
Cc: Dario Faggioli <raistlin@linux.it>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1418813432-20797-3-git-send-email-luca.abeni@unitn.it
Signed-off-by: Ingo Molnar <mingo@kernel.org>
