RE: [RFC PATCH 1/2] ACPI / button: Send "open" state after boot/resume

Hi, Rafael Thanks for the review. > From: rjwyso...@gmail.com [mailto:rjwyso...@gmail.com] On Behalf Of > Rafael J. Wysocki > Sent: Wednesday, May 18, 2016 7:37 AM > To: Zheng, Lv > Cc: Wysocki, Rafael J ; Rafael J. Wysocki > ;

[PATCH v4 4/5] locking/rwsem: Improve reader wakeup code

In __rwsem_do_wake(), the reader wakeup code will assume a writer has stolen the lock if the active reader/writer count is not 0. However, this is not as reliable an indicator as the original "< RWSEM_WAITING_BIAS" check. If another reader is present, the code will still break out and exit even if

[PATCH v4 2/5] locking/rwsem: Protect all writes to owner by WRITE_ONCE()

Without using WRITE_ONCE(), the compiler can potentially break a write into multiple smaller ones (store tearing). So a read from the same data by another task concurrently may return a partial result. This can result in a kernel crash if the data is a memory address that is being dereferenced.

[PATCH v4 3/5] locking/rwsem: Don't wake up one's own task

As rwsem_down_read_failed() will queue itself and potentially call __rwsem_do_wake(sem, RWSEM_WAKE_ANY), it is possible that a reader will try to wake up its own task. This patch adds a check to make sure that this won't happen. Signed-off-by: Waiman Long Reviewed-by: Peter

[PATCH v4 5/5] locking/rwsem: Streamline the rwsem_optimistic_spin() code

This patch moves the owner loading and checking code entirely inside of rwsem_spin_on_owner() to simplify the logic of rwsem_optimistic_spin() loop. Suggested-by: Peter Hurley Signed-off-by: Waiman Long Reviewed-by: Peter Hurley

[PATCH v4 0/5] [PATCH v3 0/4] locking/rwsem: Add reader-owned state to the owner field

v3->v4: - Add a new patch 2 to use WRITE_ONCE() for all rwsem->owner stores to prevent store tearing. v2->v3: - Make minor code changes as suggested by PeterZ & Peter Hurley. - Add 2 minor patches (#2 & #3) to improve the rwsem code - Add a 4th patch to streamline the

[PATCH v4 1/5] locking/rwsem: Add reader-owned state to the owner field

Currently, it is not possible to determine for sure if a reader owns a rwsem by looking at the content of the rwsem data structure. This patch adds a new state RWSEM_READER_OWNED to the owner field to indicate that readers currently own the lock. This enables us to address the following 2 issues

Re: [PATCH] Staging: comedi: quatech_daqp_cs.c: fixed a warning issue

On Tue, May 17, 2016 at 06:47:56AM -0700, Greg KH wrote: > A: http://en.wikipedia.org/wiki/Top_post > Q: Were do I find info about this thing called top-posting? > A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? > A: Top-posting. > Q:

Re: [f2fs-dev] [PATCH] f2fs: use bio count instead of F2FS_WRITEBACK page count

On Wed, May 18, 2016 at 09:17:00AM +0800, Chao Yu wrote: > Hi Jaegeuk, > > On 2016/5/18 8:44, Jaegeuk Kim wrote: > > This can reduce page counting overhead. > > We change to increase one reference for one bio, but block layer can split or > merge bios by itself, and write_end will be called per

Re: [PATCH v12 10/10] kprobes: Add arm64 case in kprobe example module

On Tue, May 17, 2016 at 11:24:27AM +0100, Mark Brown wrote: > On Tue, May 17, 2016 at 05:57:33PM +0800, Huang Shijie wrote: > > On Wed, Apr 27, 2016 at 02:53:05PM -0400, David Long wrote: > > > > +#ifdef CONFIG_ARM64 > > > + pr_info("pre_handler: p->addr = 0x%p, pc = 0x%lx\n", > > > I think you

[PATCH 1/2] kprobes: add a new module parameter

This patch adds a new module parameter which can be used as the symbol name. With this parameter, the module becomes more flexable. Signed-off-by: Huang Shijie --- samples/kprobes/kprobe_example.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git

[PATCH 2/2] kprobes: print out the symbol name for the hooks

Print out the symbol name for the hooks, it makes the logs more readable. Signed-off-by: Huang Shijie --- samples/kprobes/kprobe_example.c | 32 1 file changed, 16 insertions(+), 16 deletions(-) diff --git

[PATCH] mm: disable fault around on emulated access bit architecture

On Tue, May 17, 2016 at 03:34:23PM +0300, Kirill A. Shutemov wrote: > On Mon, May 16, 2016 at 11:56:32PM +0900, Minchan Kim wrote: > > On Mon, May 16, 2016 at 05:29:00PM +0300, Kirill A. Shutemov wrote: > > > > Kirill, > > > > You wanted to test non-HW access bit system and I did. > > > > What's

Re: [PATCH] doc: self-protection: provide initial details

On Tue, May 17, 2016 at 6:26 PM, Jonathan Corbet wrote: > On Mon, 16 May 2016 19:27:28 -0700 > Kees Cook wrote: > >> This document attempts to codify the intent around kernel self-protection >> along with discussion of both existing and desired

Linux-next parallel cp workload hang

Hi, Parallel cp workload (xfstests generic/273) hangs like blow. It's reproducible with a small chance, less the 1/100 i think. Have hit this in linux-next 20160504 0506 0510 trees, testing on xfs with loop or block device. Ext4 survived several rounds of testing. Linux next 20160510 tree hangs

Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of buildid dsos under symfs

On 5/17/16 7:47 PM, Hekuang wrote: 在 2016/5/16 10:50, David Ahern 写道: On 5/15/16 7:30 PM, Hekuang wrote: In previous patch, I use 'perf buildid-cache -a' to add vdso binary into the HOST buildid dir. So 'perf buildid-cache' needs the symfs option? With this patch 'PATCH v3 3/7 UPDATE',

Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of buildid dsos under symfs

在 2016/5/16 10:50, David Ahern 写道: On 5/15/16 7:30 PM, Hekuang wrote: In previous patch, I use 'perf buildid-cache -a' to add vdso binary into the HOST buildid dir. So 'perf buildid-cache' needs the symfs option? With this patch 'PATCH v3 3/7 UPDATE', the tree of symfs dir is like this:

Re: [PATCH] mmc: dw_mmc: Consider HLE errors to be data and command errors

Hi Doug, On 2016-5-18 8:47, Doug Anderson wrote: Jaehoon, On Mon, Mar 30, 2015 at 8:47 AM, Doug Anderson wrote: Jaehoon, On Sun, Mar 29, 2015 at 5:55 PM, Jaehoon Chung wrote: Dear Doug, I'm considering to control HLE error..So holding this

[PATCH v2] Drivers: hv: vmbus: fix the race when querying & updating the percpu list

There is a rare race when we remove an entry from the global list hv_context.percpu_list[cpu] in hv_process_channel_removal() -> percpu_channel_deq() -> list_del(): at this time, if vmbus_on_event() -> process_chn_event() -> pcpu_relid2channel() is trying to query the list, we can get the general

Re: [PATCH] mmc: dw_mmc: Consider HLE errors to be data and command errors

On 05/18/2016 09:47 AM, Doug Anderson wrote: > Jaehoon, > > On Mon, Mar 30, 2015 at 8:47 AM, Doug Anderson wrote: >> Jaehoon, >> >> On Sun, Mar 29, 2015 at 5:55 PM, Jaehoon Chung >> wrote: >>> Dear Doug, >>> >>> I'm considering to control HLE

Re: [PATCH v12 00/10] arm64: Add kernel probes (kprobes) support

On Thu, May 12, 2016 at 10:26:40AM +0800, Li Bin wrote: > > > on 2016/5/11 23:33, James Morse wrote: > > Hi David, > > > > On 27/04/16 19:52, David Long wrote: > >> From: "David A. Long" > >> > >> This patchset is heavily based on Sandeepa Prabhu's ARM v8 kprobes patches,

Re: mfd: twl-core: Return directly after a failed platform_device_alloc() in add_numbered_child()

On Mon, 16 May 2016, Julia Lawall wrote: > On Mon, 16 May 2016, SF Markus Elfring wrote: > > > >> * Change an error message. > > > > > > Why? Is dev_err needed? > > > > I interpreted Lee's response in this way. > > https://lkml.org/lkml/2016/1/11/104 > > OK. He didn't ask for the message to

[PATCH] fs:efs:fix return value

When the function sb_bread() fails, the return value should be -EIO, fix it. Signed-off-by: Heloise --- fs/efs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/efs/super.c b/fs/efs/super.c index cb68dac..368f7dd 100644 --- a/fs/efs/super.c +++

Re: divide error: 0000 [#1] SMP in task_numa_migrate - handle_mm_fault vanilla 4.4.6

Am 21.03.2016 um 14:38 schrieb Greg KH: > On Mon, Mar 21, 2016 at 11:52:23AM +0100, Stefan Priebe - Profihost AG wrote: >> >> Am 20.03.2016 um 22:41 schrieb Greg KH: >>> On Sun, Mar 20, 2016 at 10:27:23PM +0100, Stefan Priebe wrote: Am 19.03.2016 um 23:26 schrieb Vlastimil Babka: >

[PATCH] pinctrl: samsung: Suppress unbinding to prevent theoretical attacks

Although unbinding a pinctrl driver requires root privileges but it still might be used theoretically in certain attacks (by triggering NULL pointer exception or memory corruption). Samsung pincontrol drivers are essential for system operation so their removal is not expected. They do not

Re: linux-next: manual merge of the net-next tree with the arm64 tree

On 05/17/2016 02:24 AM, Stephen Rothwell wrote: Hi all, Today's linux-next merge of the net-next tree got a conflict in: arch/arm64/Kconfig between commit: 8ee708792e1c ("arm64: Kconfig: remove redundant HAVE_ARCH_TRANSPARENT_HUGEPAGE definition") from the arm64 tree and commit:

Re: [PATCH 1/1] tty/serial: to support 8250 earlycon can be enabled independently

On 2016/5/16 23:40, Peter Hurley wrote: > On 05/16/2016 04:35 AM, Zhen Lei wrote: >> Sometimes, we may only use SSH to login, and build 8250 uart driver as a >> ko(insmod if needed). But the earlycon may still be necessary, because >> the kernel boot process may take a long time. It's not good

RE: [PATCH 1/3] ACPI: table upgrade: use cacheable map for tables

Hi, > From: Aleksey Makarov [mailto:aleksey.maka...@linaro.org] > Subject: [PATCH 1/3] ACPI: table upgrade: use cacheable map for tables > > The new memory allocated in acpi_table_initrd_init() is used to > copy the upgraded tables to it. So it should be mapped with > early_memunmap() instead

Re: [PATCH] sched/cputime: add steal time support to full dynticks CPU time accounting

On Tue, 2016-05-10 at 13:34 +0800, Wanpeng Li wrote: > From: Wanpeng Li > > This patch adds steal guest time support to full dynticks CPU time  > accounting. After commit ff9a9b4c(sched, time: Switch > VIRT_CPU_ACCOUNTING_GEN  > to jiffy granularity), time is jiffy based

Re: [PATCH v12 05/10] arm64: Kprobes with single stepping support

On Thu, 12 May 2016 16:01:54 +0100 James Morse wrote: > Hi David, Sandeepa, > > On 27/04/16 19:53, David Long wrote: > > From: Sandeepa Prabhu > > > diff --git a/arch/arm64/kernel/kprobes.c b/arch/arm64/kernel/kprobes.c > > new file mode

[PATCH 1/1] Staging: comedi: fix CHECK: Prefer using the BIT macro issues in pcmmio.c

This patch Replace all occurences of (1< --- drivers/staging/comedi/drivers/pcmmio.c | 40

Re: mfd: twl-core: Return directly after a failed platform_device_alloc() in add_numbered_child()

On Mon, 16 May 2016, Julia Lawall wrote: > On Mon, 16 May 2016, SF Markus Elfring wrote: > > > >> * Change an error message. > > > > > > Why? Is dev_err needed? > > > > I interpreted Lee's response in this way. > > https://lkml.org/lkml/2016/1/11/104 > > OK. He didn't ask for the message to

Re: divide error: 0000 [#1] SMP in task_numa_migrate - handle_mm_fault vanilla 4.4.6

Am 21.03.2016 um 14:38 schrieb Greg KH: > On Mon, Mar 21, 2016 at 11:52:23AM +0100, Stefan Priebe - Profihost AG wrote: >> >> Am 20.03.2016 um 22:41 schrieb Greg KH: >>> On Sun, Mar 20, 2016 at 10:27:23PM +0100, Stefan Priebe wrote: Am 19.03.2016 um 23:26 schrieb Vlastimil Babka: >

[PATCH] pinctrl: samsung: Suppress unbinding to prevent theoretical attacks

Although unbinding a pinctrl driver requires root privileges but it still might be used theoretically in certain attacks (by triggering NULL pointer exception or memory corruption). Samsung pincontrol drivers are essential for system operation so their removal is not expected. They do not

Re: linux-next: manual merge of the net-next tree with the arm64 tree

On 05/17/2016 02:24 AM, Stephen Rothwell wrote: Hi all, Today's linux-next merge of the net-next tree got a conflict in: arch/arm64/Kconfig between commit: 8ee708792e1c ("arm64: Kconfig: remove redundant HAVE_ARCH_TRANSPARENT_HUGEPAGE definition") from the arm64 tree and commit:

[PATCH] fs:efs:fix return value

When the function sb_bread() fails, the return value should be -EIO, fix it. Signed-off-by: Heloise --- fs/efs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/efs/super.c b/fs/efs/super.c index cb68dac..368f7dd 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c

Re: [PATCH 1/1] tty/serial: to support 8250 earlycon can be enabled independently

On 2016/5/16 23:40, Peter Hurley wrote: > On 05/16/2016 04:35 AM, Zhen Lei wrote: >> Sometimes, we may only use SSH to login, and build 8250 uart driver as a >> ko(insmod if needed). But the earlycon may still be necessary, because >> the kernel boot process may take a long time. It's not good

Re: [git pull] vfs.git

On Mon, May 16, 2016 at 08:43:33AM -0700, Linus Torvalds wrote: > On Sun, May 15, 2016 at 8:32 PM, Al Viro wrote: > > FWIW, I considered sending that pile in several pull requests, but for some > > reason git request-pull v4.6 vfs work.lookups spews something very odd into > > diffstat - files

Re: [PATCH v2] drm/amd/powerplay: use ARRAY_SIZE() to calculate array size.

On Mon, May 16, 2016 at 04:53:50PM +0100, Eric Engestrom wrote: > On Fri, May 13, 2016 at 11:06:40PM +0530, Muhammad Falak R Wani wrote: > > It is preferred to use ARRAY_SIZE() for size calculation, instead > > using sizeof(array)/sizeof(*array). It makes the code more readable. > > > >

Re: 45aebeaf4f67 "ovl: Ensure upper filesystem supports d_type" breaking Docker

On Mon, May 16, 2016 at 09:07:27AM -0400, Vivek Goyal wrote: > So it became clear that we need a check at mount time to make sure > d_type is supported otherwise error out. This will require users to > do mkfs.xfs with ftype=1 to make progress. > > I think new defaults for mkfs.xfs are such that

[tip:x86/urgent] x86/efi: Fix 7-parameter efi_call()s

Commit-ID: 683ad8092cd262a02d01377dd17a29d492438b90 Gitweb: http://git.kernel.org/tip/683ad8092cd262a02d01377dd17a29d492438b90 Author: Linus Torvalds AuthorDate: Mon, 16 May 2016 13:05:45 -0700 Committer: Ingo Molnar CommitDate: Tue, 17 May 2016 08:25:06 +0200 x86/efi: Fix 7-parameter

Re: [PATCH] crypto/sha1-mb: make sha1_x8_avx2() conform to C function ABI

On Mon, May 16, 2016 at 04:07:53PM -0700, Megha Dey wrote: > > ok. I tried at my end too using some printk's and nothing seems to be > broken. Also, if you intend to use the same commit message, I spell my > name as Megha Dey and not Day :) Patch applied with the name corrected. Thanks, --

[PATCH RESEND v8] powerpc32: provide VIRT_CPU_ACCOUNTING

This patch provides VIRT_CPU_ACCOUTING to PPC32 architecture. PPC32 doesn't have the PACA structure, so we use the task_info structure to store the accounting data. In order to reuse on PPC32 the PPC64 functions, all u64 data has been replaced by 'unsigned long' so that it is u32 on PPC32 and u64

Re: [PATCH v2 4/5] of: overlay: Pick up label symbols from overlays.

On Mon, May 16, 2016 at 9:40 PM, Geert Uytterhoeven wrote: > On Mon, May 16, 2016 at 9:27 PM, Pantelis Antoniou > wrote: >>> On May 16, 2016, at 22:06 , Geert Uytterhoeven wrote: >>> On Mon, May 16, 2016 at 6:52 PM, Pantelis Antoniou >>> wrote: Insert overlay symbols to the base tree when

Re: [PATCH 28/28] mm, page_alloc: Defer debugging checks of pages allocated from the PCP

> @@ -2579,20 +2612,22 @@ struct page *buffered_rmqueue(struct zone > *preferred_zone, > struct list_head *list; > > local_irq_save(flags); > - pcp = _cpu_ptr(zone->pageset)->pcp; > - list = >lists[migratetype]; > - if

Re: 4.6 compilation error when making signing key

James Morris wrote: > CONFIG_MODULE_SIG_KEY="signing_key.pem" > > This should be 'certs/signing_key.pem', right? Yeah - it only gets autogenerated if it's that: ifeq ($(CONFIG_MODULE_SIG_KEY),"certs/signing_key.pem") from certs/Makefile. It may have leaked from an earlier version

[PATCH v3 0/7] powerpc/8xx: Optimisation of TLB handling for IMMR and RAM

The purpose of this set of patches is to continue on TLB handling optimisation on the 8xx with the handling of IMMR area as a single 512k area instead of multiple 4k pages. This set includes a rework of linear RAM mapping in order to not use page table but direct linear mapping. The result is

[PATCH v3 5/7] powerpc/8xx: Don't use page table for linear memory space

Instead of using the first level page table to define mappings for the linear memory space, we can use direct mapping from the TLB handling routines. This has several advantages: * No need to read the tables at each TLB miss * No issue in 16k pages mode where the 1st level table maps 64 Mbytes

[PATCH v3 1/7] powerpc/8xx: Fix vaddr for IMMR early remap

Memory: 124428K/131072K available (3748K kernel code, 188K rwdata, 648K rodata, 508K init, 290K bss, 6644K reserved) Kernel virtual memory layout: * 0xfffdf000..0xf000 : fixmap * 0xfde0..0xfe00 : consistent mem * 0xfddf6000..0xfde0 : early ioremap *

[PATCH v3 6/7] powerpc/8xx: Rework CONFIG_PIN_TLB handling

On recent kernels, with some debug options like for instance CONFIG_LOCKDEP, the BSS requires more than 8M memory, allthough the kernel code fits in the first 8M. Today, it is necessary to activate CONFIG_PIN_TLB to get more than 8M at startup, allthough pinning TLB is not necessary for that. We

Re: linux-next: manual merge of the net-next tree with the arm64 tree

On Tue, May 17, 2016 at 2:24 AM, Stephen Rothwell wrote: > > Today's linux-next merge of the net-next tree got a conflict in: > > arch/arm64/Kconfig > > between commit: > > 8ee708792e1c ("arm64: Kconfig: remove redundant > HAVE_ARCH_TRANSPARENT_HUGEPAGE definition") > > from the arm64 tree

[PATCH v3 4/7] powerpc/8xx: unpin all TLBs before flushing

Bootloader may have pinned some TLB entries so the kernel must unpin them before flushing TLBs with tlbia otherwise pinned TLB entries won't get flushed Signed-off-by: Christophe Leroy --- v2: No change v3: No change arch/powerpc/kernel/head_8xx.S | 18 ++ 1 file changed, 10

Re: [PATCH v4 3/3] drm: Add helper for simple display pipeline

On Thu, May 12, 2016 at 09:36:14PM +0300, Ville Syrjälä wrote: > On Thu, May 12, 2016 at 08:25:23PM +0200, Noralf Trønnes wrote: > > Provides helper functions for drivers that have a simple display > > pipeline. Plane, crtc and encoder are collapsed into one entity. > > > > Cc: jsa...@ti.com > >

[PATCH v3 2/7] powerpc/8xx: Map IMMR area with 512k page at a fixed address

Once the linear memory space has been mapped with 8Mb pages, as seen in the related commit, we get 11 millions DTLB missed during the reference 600s period. 77% of the misses are on user addresses and 23% are on kernel addresses (1 fourth for linear address space and 3 fourth for virtual address

[PATCH v3 7/7] powerpc/8xx: add CONFIG_PIN_TLB_IMMR

CONFIG_PIN_TLB maps IMMR area and the first 24 Mbytes of memory. In some circunstances it might be more interesting to not map IMMR but map 32 Mbytes of memory instead. Therefore we add config option CONFIG_PIN_TLB_IMMR to select if IMMR shall be pinned or not, hence whether we pin 24 or 32

[PATCH v3 3/7] powerpc/8xx: CONFIG_PIN_TLB unneeded for CONFIG_PPC_EARLY_DEBUG_CPM

IMMR is now mapped by a fixed 512k page managed by the TLB miss handler so it is not anymore necessary to PIN TLBs Signed-off-by: Christophe Leroy --- v2: No change v3: No change arch/powerpc/Kconfig.debug | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/Kconfig.debug

Re: [PATCH] mm: unhide vmstat_text definition for CONFIG_SMP

On Mon 16-05-16 15:36:56, Andrew Morton wrote: > On Mon, 16 May 2016 16:23:33 +0200 Michal Hocko wrote: > > > Andrew, I think that the following is more straightforward fix and > > should be folded in to the patch which has introduced vmstat_refresh. > > --- > > >From

Re: [GIT PULL] killable rwsems for v4.7

On Mon 16-05-16 13:32:28, Linus Torvalds wrote: > On Mon, May 16, 2016 at 7:55 AM, Ingo Molnar wrote: > > > > This tree, by Michal Hocko, implements down_write_killable(). The main > > usecase > > will be to update mm_sem usage sites to use this new API, > > Hmm. Is somebody (Michal?) looking

Re: [PATCH v4 2/3] drm/fb-cma-helper: Add function drm_fb_cma_create_with_funcs()

On Thu, May 12, 2016 at 08:25:22PM +0200, Noralf Trønnes wrote: > Add drm_fb_cma_create_with_funcs() for drivers that need to set the > dirty() callback. > > Signed-off-by: Noralf Trønnes > Acked-by: Laurent Pinchart Merged the first 2 patches to drm-misc, thanks. -Daniel > --- > > Changes

Re: [PATCH] qxl: catch qxlfb_create_pinned_object failures

On Thu, May 12, 2016 at 07:06:56PM +0200, Gerd Hoffmann wrote: > Signed-off-by: Gerd Hoffmann Applied to drm-misc, thanks. -Daniel > --- > drivers/gpu/drm/qxl/qxl_fb.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/qxl/qxl_fb.c b/drivers/gpu/drm/qxl/qxl_fb.c >

Re: linux-next: manual merge of the net-next tree with the arm64 tree

On 05/17/2016 09:03 AM, Geert Uytterhoeven wrote: [...] Someone's not gonna be happy with commit 606b5908 ("bpf: split HAVE_BPF_JIT into cBPF and eBPF variant") breaking the sort order again... Wasn't aware of that. Maybe I'm missing something, but there appears to be no throughout

Re: [PATCH 1/5] dt-bindings: Document the STM32 I2C bindings

Hi, 2016-05-16 17:04 GMT+02:00 Rob Herring : > On Wed, May 11, 2016 at 05:36:10PM +0200, M'boumba Cedric Madianga wrote: >> This patch adds documentation of device tree bindings for the STM32 I2C >> controller. >> >> Signed-off-by: M'boumba Cedric Madianga >> --- >>

[PATCH] clk: samsung: Suppress unbinding to prevent theoretical attacks

Although unbinding a driver requires root privileges but it still might be used theoretically in certain attacks (by triggering NULL pointer exception or memory corruption if driver does not provide proper remove callbacks or core does not handle it). Samsung clock drivers are essential for

[GIT pull] timer updates for 4.7

Linus, please pull the latest timers-core-for-linus git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-core-for-linus A rather small set of patches from the timer departement: - Some more y2038 work - Yet another new clocksource driver - The usual set of

Re: [tip:perf/urgent] perf/x86/intel/pt: Generate PMI in the STOP region as well

tip-bot for Alexander Shishkin writes: > Commit-ID: ab92b232ae05c382c3df0e3d6a5c6d16b639ac8c > Gitweb: http://git.kernel.org/tip/ab92b232ae05c382c3df0e3d6a5c6d16b639ac8c > Author: Alexander Shishkin > AuthorDate: Tue, 10 May 2016 16:18:32 +0300 > Committer: Ingo Molnar > CommitDate:

[PATCH 1/5] staging: unisys: Move vbushelper.h to visorbus directory

Only visorbus needs this header file so move it to visorbus directory. Signed-off-by: David Kershner --- drivers/staging/unisys/include/vbushelper.h | 46 drivers/staging/unisys/visorbus/vbushelper.h | 46 2 files changed, 46

[PATCH 3/5] Documentation: Move visorbus documentation from staging to Documentation/

This patch simple does a git mv of the drivers/staging/unisys/Documentation directory to Documentation. Renames overview.txt to visorbus.txt and renames sysfs-platform-visorchipset to the correct name sysfs-bus-visorbus. Signed-off-by: David Kershner ---

[PATCH 2/5] include: linux: visorbus: Add visorbus to include/linux directory

Update include/linux to include the s-Par associated common include header files needed for the s-Par visorbus. Signed-off-by: David Kershner --- include/linux/visorbus/channel.h | 572 +++ include/linux/visorbus/channel_guid.h| 55 +++

[PATCH 0/5] add bus driver for Unisys s-Par paravirtualized devices to arch/x86

This patchset moves the visorbus driver (fromdrivers/staging/unisys/visorbus) and its dependent headers files (from drivers/staging/unisys/include) out of staging into the main kernel tree. The visorbus driver is a bus driver for various paravirtualized devices presented within a Unisys s-Par

[PATCH 4/5] staging: unisys: visorbus: Have visorbus use include/linux/visorbus

Since we have now moved the include directories over to include/linux/visorbus this patch makes all of visorbus use the new include folders. Signed-off-by: David Kershner --- drivers/staging/unisys/visorbus/controlvmchannel.h | 2 +- drivers/staging/unisys/visorbus/periodic_work.c| 3 +--

Re: [PATCH v3 1/7 UPDATE] perf tools: Find vdso with the consider of cross-platform

On 13/05/16 11:51, He Kuang wrote: > There's a problem in machine__findnew_vdso(), vdso buildid generated > by a 32-bit machine stores it with the name 'vdso', but when > processing buildid on a 64-bit machine with the same 'perf.data', perf > will search for vdso named as 'vdso32' and get failed.

[GIT pull] irq updates for 4.7

Linus, please pull the latest irq-core-for-linus git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-core-for-linus This update delivers: - Yet another interrupt chip diver (LPC32xx) - Core functions to handle partitioned per-cpu interrupts - Enhancements to

Re: [PATCH v3 1/7 UPDATE] perf tools: Find vdso with the consider of cross-platform

On 16/05/16 16:32, Arnaldo Carvalho de Melo wrote: > Em Fri, May 13, 2016 at 08:51:49AM +, He Kuang escreveu: >> There's a problem in machine__findnew_vdso(), vdso buildid generated >> by a 32-bit machine stores it with the name 'vdso', but when >> processing buildid on a 64-bit machine with

RE: [PATCH v8 13/14] usb: gadget: udc: adapt to OTG core

Hi > -Original Message- > From: Roger Quadros [mailto:rog...@ti.com] > Sent: Monday, May 16, 2016 5:52 PM > To: Peter Chen > Cc: peter.c...@freescale.com; ba...@kernel.org; t...@atomide.com; > gre...@linuxfoundation.org; dan.j.willi...@intel.com; > mathias.ny...@linux.intel.com;

[PATCH v1] mm: bad_page() checks bad_flags instead of page->flags for hwpoison page

There's a race window between checking page->flags and unpoisoning, which taints kernel with "BUG: Bad page state". That's overkill. It's safer to use bad_flags to detect hwpoisoned page. Signed-off-by: Naoya Horiguchi --- mm/page_alloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2

[PATCH 1/1] perf/x86/intel: Change offcore response masks for Knights Landing

Due to change in register definition we need to update OCR mask. MSR_OFFCORE_RESP0 reserved bits: 3,4,18,29,30,33,34, 8,11,14 MSR_OFFCORE_RESP1 reserved bits: 3,4,18,29,30,33,34, 38 Reported-by: Andi Kleen Signed-off-by: Lukasz Odzioba --- arch/x86/events/intel/core.c | 6 ++ 1 file

Re: [PATCH] pinctrl: stm32: fix debugfs format string

Hi Arnd I have already send a fix for this on the mailing list on 12th may ([PATCH 0/2] pinctrl: stm32: .pin_config_dbg_show fixes). I don't know if Linus will merged it on his pinctrl branch. Sorry Patrice On 05/13/2016 03:53 PM, Arnd Bergmann wrote: The newly added stm32_pconf_dbg_show

[PATCH 1/1] arch/x86/perf/intel: Add static keyword to some arrays

Add static keyword to intel_bdw_event_constraints, snb_events_attrs, nhm_events_attrs, intel_skl_event_constraints arrays. Signed-off-by: Lukasz Odzioba --- arch/x86/events/intel/core.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/events/intel/core.c

Re: [PATCH v4 3/3] drm: Add helper for simple display pipeline

On Tue, May 17, 2016 at 09:05:01AM +0200, Daniel Vetter wrote: > On Thu, May 12, 2016 at 09:36:14PM +0300, Ville Syrjälä wrote: > > On Thu, May 12, 2016 at 08:25:23PM +0200, Noralf Trønnes wrote: > > > Provides helper functions for drivers that have a simple display > > > pipeline. Plane, crtc and

[PATCH v2 5/6] pv-qspinlock: use cmpxchg_release in __pv_queued_spin_unlock

cmpxchg_release is lighter, we can gain a better performace then. Suggested-by: Boqun Feng Signed-off-by: Pan Xinhui --- kernel/locking/qspinlock_paravirt.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/locking/qspinlock_paravirt.h

[PATCH v2 6/6] powerpc: pseries: pv-qspinlock build config/make

pseries can use pv-qspinlock. Signed-off-by: Pan Xinhui --- arch/powerpc/kernel/Makefile | 1 + arch/powerpc/platforms/pseries/Kconfig | 8 2 files changed, 9 insertions(+) diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 2da380f..ae7c2f1 100644

[PATCH v2 2/6] powerpc: pseries/Kconfig: qspinlock build config

pseries will use qspinlock by default. Signed-off-by: Pan Xinhui --- arch/powerpc/platforms/pseries/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index bec90fb..f669323 100644 ---

[PATCH v2 3/6] powerpc: lib/locks.c: cpu yield/wake helper function

pv-qspinlock core has pv_wait/pv_kick which will give a better performace by yielding and kicking cpu at some cases. lets support them by adding two corresponding helper functions. Signed-off-by: Pan Xinhui --- arch/powerpc/include/asm/spinlock.h | 4 arch/powerpc/lib/locks.c|

[PATCH v2 4/6] pv-qspinlock: powerpc support pv-qspinlock

As we need let pv-qspinlock-kernel run on all environment which might have no powervm, we should runtime choose which qspinlock version to use. The default pv-qspinlock use native version. pv_lock initialization should be done in bootstage with irq disabled. And if possible, restore pv_lock_ops

[PATCH v2 1/6] qspinlock: powerpc support qspinlock

Base code to enable qspinlock on powerpc. this patch add some #ifdef here and there. Although there is no paravirt related code, we can successfully build a qspinlock kernel after apply this patch. Signed-off-by: Pan Xinhui --- arch/powerpc/include/asm/qspinlock.h | 22

[PATCH v3 0/6] powerpc use pv-qpsinlock instead of spinlock

change fome v1: separate into 6 pathes from one patch some minor code changes. benchmark test results are below. run 3 tests on pseries IBM,8408-E8E with 32cpus, 64GB memory perf bench futex hash perf bench futex lock-pi perf record -advRT || perf bench sched messaging -g 1000 ||

Re: [PATCH] dwc3: gadget: Defer starting the gadget device until gadget is power on

Hi Felipe, On 13 May 2016 at 20:46, Felipe Balbi wrote: > > Hi, > > Baolin Wang writes: > why does it need restart? Why is dwc3 powered off? Who powers it off? Because when the dwc3 Vbus is off (no cable pluging in now), especially for some mobile device, the system need to

[PATCH V2] Use MACRO UINT_MAX instead of actual value

It's more elegant to use MACRO UINT_MAX to represent the max value of type unsigned int. So replace the actual value by using this MACRO. Signed-off-by: Minfei Huang --- v1: - fix typo --- drivers/nvme/host/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

Re: [PATCH v4 3/3] drm: Add helper for simple display pipeline

On Tue, May 17, 2016 at 10:46:51AM +0300, Ville Syrjälä wrote: > On Tue, May 17, 2016 at 09:05:01AM +0200, Daniel Vetter wrote: > > On Thu, May 12, 2016 at 09:36:14PM +0300, Ville Syrjälä wrote: > > > On Thu, May 12, 2016 at 08:25:23PM +0200, Noralf Trønnes wrote: > > > > Provides helper functions

Re: [PATCH v2 2/3] mfd: lp873x: Add lp873x PMIC support

On Fri, 13 May 2016, Keerthy wrote: > On Thursday 12 May 2016 06:48 PM, Lee Jones wrote: > >On Tue, 10 May 2016, Keerthy wrote: > > > >>The LP873X chip is a power management IC for Portable Navigation Systems > >> and Tablet Computing devices. It contains the following components: > >> > >>

Re: [PATCH v4 12/18] arm: use of_platform_default_populate() to populate

On Thursday 12 May 2016 05:36 PM, Kefeng Wang wrote: > Use helper of_platform_default_populate() in linux/of_platform > when possible, instead of calling of_platform_populate() with > the default match table. > > Cc: Nicolas Ferre > Cc: Krzysztof Halasa > Cc: Sekhar Nori > Cc: Shawn Guo > Cc:

Re: [PATCH] dwc3: gadget: Defer starting the gadget device until gadget is power on

Hi Baolin Wang writes: > Hi Felipe, > > On 13 May 2016 at 20:46, Felipe Balbi wrote: >> >> Hi, >> >> Baolin Wang writes: >> why does it need restart? Why is dwc3 powered off? Who powers it off? > > Because when the dwc3 Vbus is off (no cable pluging in now), > especially for

Re: [PATCH v2 2/3] mfd: lp873x: Add lp873x PMIC support

On Tuesday 17 May 2016 01:31 PM, Lee Jones wrote: On Fri, 13 May 2016, Keerthy wrote: On Thursday 12 May 2016 06:48 PM, Lee Jones wrote: On Tue, 10 May 2016, Keerthy wrote: The LP873X chip is a power management IC for Portable Navigation Systems and Tablet Computing devices. It

Re: [PATCH 2/2] ARM: dts: igep0020: Add SD card write-protect pin.

Hi Ladislav, 2016-05-13 14:37 GMT+02:00 Ladislav Michl : > Hi Enric! > > On Fri, May 06, 2016 at 11:02:34PM +0200, Enric Balletbo i Serra wrote: >> A host device that supports write protection should refuse to write to >> an SD card that is designated read-only when write-protect is set. This >>

Re: [RFC PATCH 09/11] drivers: acpi: implement acpi_dma_configure

Hi Lorenzo, On 14.04.2016 19:25, Lorenzo Pieralisi wrote: On DT based systems, the of_dma_configure() API implements DMA configuration for a given device. On ACPI systems an API equivalent to of_dma_configure() is missing which implies that it is currently not possible to set-up DMA operations

Re: More build fixes for omapdrm in current -next

On 11/05/16 19:01, Arnd Bergmann wrote: > A couple more errors showed up in linux-next in the last few > days, all because of missing header files. I have not seen these > before, and most configurations appear to be fine. There > must have been an implicit inclusion somewhere before that > just

Re: [PATCH v2 2/3] mfd: lp873x: Add lp873x PMIC support

On Tuesday 17 May 2016 01:34 PM, Keerthy wrote: On Tuesday 17 May 2016 01:31 PM, Lee Jones wrote: On Fri, 13 May 2016, Keerthy wrote: On Thursday 12 May 2016 06:48 PM, Lee Jones wrote: On Tue, 10 May 2016, Keerthy wrote: The LP873X chip is a power management IC for Portable Navigation

Re: [PATCH v8 13/14] usb: gadget: udc: adapt to OTG core

On 17/05/16 10:38, Jun Li wrote: > Hi > >> -Original Message- >> From: Roger Quadros [mailto:rog...@ti.com] >> Sent: Monday, May 16, 2016 5:52 PM >> To: Peter Chen >> Cc: peter.c...@freescale.com; ba...@kernel.org; t...@atomide.com; >> gre...@linuxfoundation.org;

Re: [PATCH 04/11] irqchip: irq-pic32-evic: Fix bug with external interrupts.

On 17/05/16 06:05, Purna Chandra Mandal wrote: > From: Joshua Henderson > > The wrong external interrupt bits are being set, offset by 1. > > Signed-off-by: Joshua Henderson > Signed-off-by: Purna Chandra Mandal Acked-by: Marc Zyngier I'll queue that for post -rc1. Thanks, M. --

Re: [PATCH] x86/boot: Refuse to build with data relocations

On Mon, May 16, 2016 at 3:30 AM, Ingo Molnar wrote: > > * H. Peter Anvin wrote: > >> On 05/12/16 15:54, Kees Cook wrote: >> >> >> >> It would be far better to warn on the *type* of relocations rather than >> >> in which section they feel. >> > >> > I'm open to specific changes. What's the best

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