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2017-02-13perf diff: Change default setting to "delta-abs"Namhyung Kim
The "delta-abs" compute method will show most changed entries on top. So users can easily see how much effect between the data. Note that it also changes the default of -o option to 1 in order to apply the compute method. To see original-style (sorted by baseline) use -o 0 option. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170210161856.18422-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13perf diff: Add diff.compute config optionNamhyung Kim
The diff.compute config variable is to set the default compute method of perf diff command (-c option). Possible values 'delta' (default), 'delta-abs', 'ratio' and 'wdiff'. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Taeung Song <treeze.taeung@gmail.com> Link: http://lkml.kernel.org/r/20170210073614.24584-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13perf diff: Add diff.order config optionNamhyung Kim
In many cases, I need to look at differences between two data so I often used the -o option to sort the result base on the difference first. It'd be nice to have a config option to set it by default. The diff.order config option is to set the default value of -o/--order option. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Taeung Song <treeze.taeung@gmail.com> Link: http://lkml.kernel.org/r/20170210073614.24584-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13perf diff: Add 'delta-abs' compute methodNamhyung Kim
The 'delta-abs' compute method is same as 'delta' but shows entries with bigger absolute delta first instead of sorting numerically. This is only useful together with -o option. Below is default output (-c delta): $ perf diff -o 1 -c delta | grep -v ^# | head 42.22% +4.97% [kernel.kallsyms] [k] cfb_imageblit 0.62% +1.23% [kernel.kallsyms] [k] mutex_lock +1.15% [kernel.kallsyms] [k] copy_user_generic_string 2.40% +0.95% [kernel.kallsyms] [k] bit_putcs 0.31% +0.79% [kernel.kallsyms] [k] link_path_walk +0.64% [kernel.kallsyms] [k] kmem_cache_alloc 0.00% +0.57% [kernel.kallsyms] [k] __rcu_read_unlock +0.45% [kernel.kallsyms] [k] alloc_set_pte 0.16% +0.45% [kernel.kallsyms] [k] menu_select +0.41% ld-2.24.so [.] do_lookup_x Now with 'delta-abs' it shows entries have bigger delta value either positive or negative. $ perf diff -o 1 -c delta-abs | grep -v ^# | head 42.22% +4.97% [kernel.kallsyms] [k] cfb_imageblit 12.72% -3.01% [kernel.kallsyms] [k] intel_idle 9.72% -1.31% [unknown] [.] 0x0000000000411343 0.62% +1.23% [kernel.kallsyms] [k] mutex_lock 2.40% +0.95% [kernel.kallsyms] [k] bit_putcs 0.31% +0.79% [kernel.kallsyms] [k] link_path_walk 1.35% -0.71% [kernel.kallsyms] [k] smp_call_function_single 0.00% +0.57% [kernel.kallsyms] [k] __rcu_read_unlock 0.16% +0.45% [kernel.kallsyms] [k] menu_select 0.72% -0.44% [kernel.kallsyms] [k] lookup_fast Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20170210073614.24584-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13tools include: Introduce linux/compiler-gcc.hArnaldo Carvalho de Melo
To match the kernel headers structure, setting up things that are specific to gcc or to some specific version of gcc. It gets included by linux/compiler.h when gcc is the compiler being used. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joe Perches <joe@perches.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-fabcqfq4asodq9t158hcs8t3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13MAINTAINERS: Remove old e-mail addressArnaldo Carvalho de Melo
The ghostprotocols.net domain is not working, remove it from CREDITS and MAINTAINERS, and change the status to "Odd fixes", and since I haven't been maintaining those, remove my address from there. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-13[media] cec: initiator should be the same as the destination for, pollHans Verkuil
Poll messages that are used to allocate a logical address should use the same initiator as the destination. Instead, it expected that the initiator was 0xf which is not according to the standard. This also had consequences for the message checks in cec_transmit_msg_fh that incorrectly rejected poll messages with the same initiator and destination. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-13[media] videodev2.h: go back to limited range Y'CbCr for SRGB and, ADOBERGBHans Verkuil
This reverts 'commit 7e0739cd9c40 ("[media] videodev2.h: fix sYCC/AdobeYCC default quantization range"). The problem is that many drivers can convert R'G'B' content (often from sensors) to Y'CbCr, but they all produce limited range Y'CbCr. To stay backwards compatible the default quantization range for sRGB and AdobeRGB Y'CbCr encoding should be limited range, not full range, even though the corresponding standards specify full range. Update the V4L2_MAP_QUANTIZATION_DEFAULT define accordingly and also update the documentation. Fixes: 7e0739cd9c40 ("[media] videodev2.h: fix sYCC/AdobeYCC default quantization range") Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: <stable@vger.kernel.org> # for v4.9 and up Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-13futex: Move futex_init() to core_initcallYang Yang
The UEVENT user mode helper is enabled before the initcalls are executed and is available when the root filesystem has been mounted. The user mode helper is triggered by device init calls and the executable might use the futex syscall. futex_init() is marked __initcall which maps to device_initcall, but there is no guarantee that futex_init() is invoked _before_ the first device init call which triggers the UEVENT user mode helper. If the user mode helper uses the futex syscall before futex_init() then the syscall crashes with a NULL pointer dereference because the futex subsystem has not been initialized yet. Move futex_init() to core_initcall so futexes are initialized before the root filesystem is mounted and the usermode helper becomes available. [ tglx: Rewrote changelog ] Signed-off-by: Yang Yang <yang.yang29@zte.com.cn> Cc: jiang.biao2@zte.com.cn Cc: jiang.zhengxiong@zte.com.cn Cc: zhong.weidong@zte.com.cn Cc: deng.huali@zte.com.cn Cc: Peter Zijlstra <peterz@infradead.org> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1483085875-6130-1-git-send-email-yang.yang29@zte.com.cn Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-13m68k/sun3: Remove dead code in paging_init()Mathias Krause
The macro TEST_VERIFY_AREA can never be defined as there's no wp_works_ok variable. So just remove the dead code. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-13tick/broadcast: Prevent deadlock on tick_broadcast_lockMike Galbraith
tick_broadcast_lock is taken from interrupt context, but the following call chain takes the lock without disabling interrupts: [ 12.703736] _raw_spin_lock+0x3b/0x50 [ 12.703738] tick_broadcast_control+0x5a/0x1a0 [ 12.703742] intel_idle_cpu_online+0x22/0x100 [ 12.703744] cpuhp_invoke_callback+0x245/0x9d0 [ 12.703752] cpuhp_thread_fun+0x52/0x110 [ 12.703754] smpboot_thread_fn+0x276/0x320 So the following deadlock can happen: lock(tick_broadcast_lock); <Interrupt> lock(tick_broadcast_lock); intel_idle_cpu_online() is the only place which violates the calling convention of tick_broadcast_control(). This was caused by the removal of the smp function call in course of the cpu hotplug rework. Instead of slapping local_irq_disable/enable() at the call site, we can relax the calling convention and handle it in the core code, which makes the whole machinery more robust. Fixes: 29d7bbada98e ("intel_idle: Remove superfluous SMP fuction call") Reported-by: Gabriel C <nix.or.die@gmail.com> Signed-off-by: Mike Galbraith <efault@gmx.de> Cc: Ruslan Ruslichenko <rruslich@cisco.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: lwn@lwn.net Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: stable <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/1486953115.5912.4.camel@gmx.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-12net/llc: avoid BUG_ON() in skb_orphan()Eric Dumazet
It seems nobody used LLC since linux-3.12. Fortunately fuzzers like syzkaller still know how to run this code, otherwise it would be no fun. Setting skb->sk without skb->destructor leads to all kinds of bugs, we now prefer to be very strict about it. Ideally here we would use skb_set_owner() but this helper does not exist yet, only CAN seems to have a private helper for that. Fixes: 376c7311bdb6 ("net: add a temporary sanity check in skb_orphan()") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-12bpf: introduce BPF_F_ALLOW_OVERRIDE flagAlexei Starovoitov
If BPF_F_ALLOW_OVERRIDE flag is used in BPF_PROG_ATTACH command to the given cgroup the descendent cgroup will be able to override effective bpf program that was inherited from this cgroup. By default it's not passed, therefore override is disallowed. Examples: 1. prog X attached to /A with default prog Y fails to attach to /A/B and /A/B/C Everything under /A runs prog X 2. prog X attached to /A with allow_override. prog Y fails to attach to /A/B with default (non-override) prog M attached to /A/B with allow_override. Everything under /A/B runs prog M only. 3. prog X attached to /A with allow_override. prog Y fails to attach to /A with default. The user has to detach first to switch the mode. In the future this behavior may be extended with a chain of non-overridable programs. Also fix the bug where detach from cgroup where nothing is attached was not throwing error. Return ENOENT in such case. Add several testcases and adjust libbpf. Fixes: 3007098494be ("cgroup: add support for eBPF programs") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Daniel Mack <daniel@zonque.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-12Input: elan_i2c - add ELAN0605 to the ACPI tableIHARA Hiroka
ELAN0605 has been confirmed to be a variant of ELAN0600, which is blacklisted in the hid-core to be managed by elan_i2c. This device can be found in Lenovo ideapad 310s (80U4000). Signed-off-by: Hiroka IHARA <ihara_h@live.jp> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-12Linux 4.10-rc8v4.10-rc8Linus Torvalds
2017-02-12genirq/devres: Use dev_name(dev) as default for devnameHeiner Kallweit
Allow the devname parameter to be NULL and use dev_name(dev) in this case. This should be an appropriate default for most use cases. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: http://lkml.kernel.org/r/05c63d67-30b4-7026-02d5-ce7fb7bc185f@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-12m68k/include: Modernize printing of kernel messagesGeert Uytterhoeven
- Convert from printk() to pr_*(), - Add dummies for validating format strings when debugging is disabled. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/mm: Modernize printing of kernel messagesGeert Uytterhoeven
Convert from printk() to pr_*(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/mm: sun3 - Modernize printing of kernel messagesGeert Uytterhoeven
- Convert from printk() to pr_*(), - Add missing print to do_page_mapin(), as print_pte_vaddr() calls pr_cont(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/kernel: Modernize printing of kernel messagesGeert Uytterhoeven
- Use pr_err_ratelimited() instead of deprecated printk_ratelimit(), - Add dummies for validating format strings when debugging is disabled, - Convert from printk() to pr_*(), - Correct printf()-style format specifiers. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/sun3x: Modernize printing of kernel messagesGeert Uytterhoeven
- Convert from printk() to pr_*(), - Remove #undef DEBUG, - Drop useless Warning prefix, - Use TABs for indentation while at it. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/sun3: Modernize printing of kernel messagesGeert Uytterhoeven
- Convert from printk() to pr_*(), - Add missing continuations, - Do not print nonexistent len variable, - Add missing sysname[] variable, - Correct printf()-style format specifiers. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/q40: Modernize printing of kernel messagesGeert Uytterhoeven
- Convert from printk() to pr_*(), - Use TABs for indentation while at it. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/mvme16x: Modernize printing of kernel messagesGeert Uytterhoeven
Convert from printk() to pr_*(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/mvme147: Modernize printing of kernel messagesGeert Uytterhoeven
Convert from printk() to pr_*(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/bvme6000: Modernize printing of kernel messagesGeert Uytterhoeven
Convert from printk() to pr_*(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-12m68k/68000: Modernize printing of kernel messagesGeert Uytterhoeven
Convert from printk() to pr_*(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Greg Ungerer <gerg@linux-m68k.org>
2017-02-12m68k/atari: Modernize printing of kernel messagesGeert Uytterhoeven
- Convert from printk() to pr_*(), - Add missing continuations, to fix user-visible breakage, - Drop useless WARNING prefix, - Move trailing spaces to start of continuations. Note that the "Keyboard overrun" message will now only be generated when the kernel has been compiled for debugging. Fixes: 4bcc595ccd80decb ("printk: reinstate KERN_CONT for printing continuation lines") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-11ibmvnic: Call napi_disable instead of napi_enable in failure pathNathan Fontenot
The failure path in ibmvnic_open() mistakenly makes a second call to napi_enable instead of calling napi_disable. This can result in a BUG_ON for any queues that were enabled in the previous call to napi_enable. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-11ibmvnic: Initialize completion variables before starting workNathan Fontenot
Initialize condition variables prior to invoking any work that can mark them complete. This resolves a race in the ibmvnic driver where the driver faults trying to complete an uninitialized condition variable. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-11clocksource/drivers/arm_arch_timer:: Mark cyclecounter __ro_after_initBhumika Goyal
The object cyclecounter of type cyclecounter is only modified during initialization in arch_counter_register. So it can be marked __ro_after_init. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Cc: mark.rutland@arm.com Cc: keescook@chromium.org Cc: marc.zyngier@arm.com Cc: daniel.lezcano@linaro.org Cc: julia.lawall@lip6.fr Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1486840818-22214-1-git-send-email-bhumirks@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-11perf/x86/intel: Add Kaby Lake supportSrinivas Pandruvada
Add Kaby Lake mobile and desktop models for RAPL, CSTATE and UNCORE matching Skylake. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: peterz@infradead.org Cc: kan.liang@intel.com Cc: bigeasy@linutronix.de Cc: dave.hansen@linux.intel.com Cc: piotr.luc@intel.com Cc: davidcc@google.com Cc: bp@suse.de Link: http://lkml.kernel.org/r/1486755517-17812-1-git-send-email-srinivas.pandruvada@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-11Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Last minute x86 fixes: - Fix a softlockup detector warning and long delays if using ptdump with KASAN enabled. - Two more TSC-adjust fixes for interesting firmware interactions. - Two commits to fix an AMD CPU topology enumeration bug that caused a measurable gaming performance regression" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/ptdump: Fix soft lockup in page table walker x86/tsc: Make the TSC ADJUST sanitizing work for tsc_reliable x86/tsc: Avoid the large time jump when sanitizing TSC ADJUST x86/CPU/AMD: Fix Zen SMT topology x86/CPU/AMD: Bring back Compute Unit ID
2017-02-11Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Ingo Molnar: "Fix a sporadic missed timer hw reprogramming bug that can result in random delays" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick/nohz: Fix possible missing clock reprog after tick soft restart
2017-02-11Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "A kernel crash fix plus three tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix crash in perf_event_read() perf callchain: Reference count maps perf diff: Fix -o/--order option behavior (again) perf diff: Fix segfault on 'perf diff -o N' option
2017-02-11Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull lockdep fix from Ingo Molnar: "This fixes an ugly lockdep stack trace output regression. (But also affects other stacktrace users such as kmemleak, KASAN, etc)" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: stacktrace, lockdep: Fix address, newline ugliness
2017-02-11Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Ingo Molnar: "Two last minute ARM irqchip driver fixes" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mxs: Enable SKIP_SET_WAKE and MASK_ON_SUSPEND irqchip/keystone: Fix "scheduling while atomic" on rt
2017-02-11Merge branch 'for-linus-4.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "This has two last minute fixes. The highest priority here is a regression fix for the decompression code, but we also fixed up a problem with the 32-bit compat ioctls. The decompression bug could hand back the wrong data on big reads when zlib was used. I have a larger cleanup to make the math here less error prone, but at this stage in the release Omar's patch is the best choice" * 'for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: fix btrfs_decompress_buf2page() btrfs: fix btrfs_compat_ioctl failures on non-compat ioctls
2017-02-11Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Six fairly small fixes. None is a real show stopper, two automation detected problems: one memory leak, one use after free and four others each of which fixes something that has been a significant source of annoyance to someone" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: zfcp: fix use-after-free by not tracing WKA port open/close on failed send scsi: aacraid: Fix INTx/MSI-x issue with older controllers scsi: mpt3sas: disable ASPM for MPI2 controllers scsi: mpt3sas: Force request partial completion alignment scsi: qla2xxx: Avoid that issuing a LIP triggers a kernel crash scsi: qla2xxx: Fix a recently introduced memory leak
2017-02-10devicetree: add lm90 thermal_zone sensor supportChristian Lamparter
This patch updates the LM90's devicetree definition to include the #thermal-sensor-cells property as well as the sensor constants in include/dt-bindings/thermal/lm90.h. Cc: Wei Ni <wni@nvidia.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-10hwmon: (it87) Add support for IT8792EGuenter Roeck
The chip is similar to IT8732E, but supports only three fans and pwm outputs instead of four (the driver currently does not support the 4th fan and pwm output of IT8732E). Note that the chip ID is 0x8733, not 0x8792 as one would expect. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-10hwmon: (it87) Do not overwrite bit 2..6 of pwm control registersGuenter Roeck
In IT8620E, after setting pwm control to manual, it was observed that pwm values for fan 4..6 have reversed results (writing 0 results in fans running at full speed, writing 255 results in fans turned off). With the new PWM control, pwm polarity for pwm control 4..6 is specified in its pwm control registers. Those registers are overwritten when setting the pwm mode or the temperature mapping. Do not touch bit 2..6 of pwm control registers on register writes to fix the problem. Cc: stable@vger.kernel.org # 4.9+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-10hwmon: (it87) Fix pwm4 detection for IT8620 and IT8628Guenter Roeck
pwm4 is enabled if bit 2 of GPIO control register 4 is disabled, not when it is enabled. Since the check is for the skip condition, it is reversed. This applies to both IT8620 and IT8628. Fixes: 36c4d98a7883d ("hwmon: (it87) Add support for all pwm channels ...") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-10hwmon: (it87) Ensure that pwm control cache is current before updating valuesGuenter Roeck
If sensor attributes were never read, the pwm control data has not been initiialized, which can cause wrong driver behavior. Ensure that cached data is current before acting on it. Cc: stable@vger.kernel.org # 4.4+ Reported-by: Kevin Folz <kfolz@evertz.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-10hwmon: (it87) Improve IT8622 supportGuenter Roeck
Configuration registers on ITE8622 are different to 8620 and 8628 and require special handling. Also, the chip supports up to 5 pwm controls. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-10hwmon: (it87) Add support for IT8622EGuenter Roeck
IT8622E is similar to IT8620E, but only supports five pwm controls and five fan tachometers. Originally-from: Kevin Folz <kfolz@evertz.com>. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-10hwmon: (it87) Add feature flag indicating that VIN3 is connected to 5VGuenter Roeck
On IT8622E and IT8628E, VIN3 is expected to be connected to +5V. Add feature flag and reflect in input label. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-10Btrfs: fix btrfs_decompress_buf2page()Omar Sandoval
If btrfs_decompress_buf2page() is handed a bio with its page in the middle of the working buffer, then we adjust the offset into the working buffer. After we copy into the bio, we advance the iterator by the number of bytes we copied. Then, we have some logic to handle the case of discontiguous pages and adjust the offset into the working buffer again. However, if we didn't advance the bio to a new page, we may enter this case in error, essentially repeating the adjustment that we already made when we entered the function. The end result is bogus data in the bio. Previously, we only checked for this case when we advanced to a new page, but the conversion to bio iterators changed that. This restores the old, correct behavior. A case I saw when testing with zlib was: buf_start = 42769 total_out = 46865 working_bytes = total_out - buf_start = 4096 start_byte = 45056 The condition (total_out > start_byte && buf_start < start_byte) is true, so we adjust the offset: buf_offset = start_byte - buf_start = 2287 working_bytes -= buf_offset = 1809 current_buf_start = buf_start = 42769 Then, we copy bytes = min(bvec.bv_len, PAGE_SIZE - buf_offset, working_bytes) = 1809 buf_offset += bytes = 4096 working_bytes -= bytes = 0 current_buf_start += bytes = 44578 After bio_advance(), we are still in the same page, so start_byte is the same. Then, we check (total_out > start_byte && current_buf_start < start_byte), which is true! So, we adjust the values again: buf_offset = start_byte - buf_start = 2287 working_bytes = total_out - start_byte = 1809 current_buf_start = buf_start + buf_offset = 45056 But note that working_bytes was already zero before this, so we should have stopped copying. Fixes: 974b1adc3b10 ("btrfs: use bio iterators for the decompression handlers") Reported-by: Pat Erley <pat-lkml@erley.org> Reviewed-by: Chris Mason <clm@fb.com> Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Chris Mason <clm@fb.com> Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Tested-by: Liu Bo <bo.li.liu@oracle.com>
2017-02-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) If the timing is wrong we can indefinitely stop generating new ipv6 temporary addresses, from Marcus Huewe. 2) Don't double free per-cpu stats in ipv6 SIT tunnel driver, from Cong Wang. 3) Put protections in place so that AF_PACKET is not able to submit packets which don't even have a link level header to drivers. From Willem de Bruijn. 4) Fix memory leaks in ipv4 and ipv6 multicast code, from Hangbin Liu. 5) Don't use udp_ioctl() in l2tp code, UDP version expects a UDP socket and that doesn't go over very well when it is passed an L2TP one. Fix from Eric Dumazet. 6) Don't crash on NULL pointer in phy_attach_direct(), from Florian Fainelli. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: l2tp: do not use udp_ioctl() xen-netfront: Delete rx_refill_timer in xennet_disconnect_backend() NET: mkiss: Fix panic net: hns: Fix the device being used for dma mapping during TX net: phy: Initialize mdio clock at probe function igmp, mld: Fix memory leak in igmpv3/mld_del_delrec() xen-netfront: Improve error handling during initialization sierra_net: Skip validating irrelevant fields for IDLE LSIs sierra_net: Add support for IPv6 and Dual-Stack Link Sense Indications kcm: fix 0-length case for kcm_sendmsg() xen-netfront: Rework the fix for Rx stall during OOM and network stress net: phy: Fix PHY module checks and NULL deref in phy_attach_direct() net: thunderx: Fix PHY autoneg for SGMII QLM mode net: dsa: Do not destroy invalid network devices ping: fix a null pointer dereference packet: round up linear to header len net: introduce device min_header_len sit: fix a double free on error path lwtunnel: valid encap attr check should return 0 when lwtunnel is disabled ipv6: addrconf: fix generation of new temporary addresses
2017-02-10Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "Third round of -rc fixes for 4.10 kernel: - two security related issues in the rxe driver - one compile issue in the RDMA uapi header" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: RDMA: Don't reference kernel private header from UAPI header IB/rxe: Fix mem_check_range integer overflow IB/rxe: Fix resid update