linaro-kernel December 2016

linaro-kernel@lists.linaro.org

35 participants
119 discussions

RE: [PATCH 09/10] PM / OPP: Don't expose srcu_head to register notifiers

by MyungJoo Ham

>Let the OPP core provide helpers to register notifiers for any device, >instead of exposing srcu_head outside of the core. > >Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> >--- > drivers/base/power/opp/core.c | 66 ++++++++++++++++++++++++++++++++----------- > drivers/devfreq/devfreq.c | 26 ++--------------- > include/linux/pm_opp.h | 14 ++++++--- > 3 files changed, 62 insertions(+), 44 deletions(-) > Acked-by: MyungJoo Ham <myungjoo.ham(a)samsung.com> Cheers, MyungJoo

7 years, 5 months

master build: 0 failures 0 warnings (v4.9-rc8-51-gbc3913a)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.9-rc8-51-gbc3913a Commit: bc3913a537 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc Build Time: 95 min 21 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years, 5 months

master build: 0 failures 0 warnings (v4.9-rc8-10-g10d20bd)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.9-rc8-10-g10d20bd Commit: 10d20bd25e shmem: fix shm fallocate() list corruption Build Time: 95 min 35 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years, 5 months

next-20161205 build: 3 failures 4 warnings (next-20161205)

by Build bot for Mark Brown

Tree/Branch: next-20161205 Git describe: next-20161205 Commit: cef87e9115 Add linux-next specific files for 20161205 Build Time: 12 min 33 sec Passed: 7 / 10 ( 70.00 %) Failed: 3 / 10 ( 30.00 %) Errors: 17 Warnings: 4 Section Mismatches: 0 Failed defconfigs: arm64-allnoconfig arm64-allmodconfig arm64-defconfig Errors: arm64-allnoconfig ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards arm64-allmodconfig ../arch/arm64/include/asm/probes.h:18:25: fatal error: asm/opcodes.h: No such file or directory arm64-defconfig ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 3 warnings 0 mismatches : arm-allmodconfig 1 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 17 2 ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression 2 ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards 2 ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression 2 ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards 2 ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression 2 ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards 2 ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression 2 ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards 2 ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression 2 ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards 2 ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression 2 ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards 2 ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression 2 ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards 2 ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression 2 ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards 1 ../arch/arm64/include/asm/probes.h:18:25: fatal error: asm/opcodes.h: No such file or directory Warnings Summary: 4 1 ../net/netfilter/nft_payload.c:261:15: warning: 'tsum' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../include/net/checksum.h:71:9: warning: 'fsum' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../fs/btrfs/inode.c:1198:31: warning: 'cur_end' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../drivers/net/ethernet/apm/xgene/xgene_enet_cle.c:836:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : FAIL, 16 errors, 0 warnings, 0 section mismatches Errors: ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 1 errors, 0 warnings, 0 section mismatches Errors: ../arch/arm64/include/asm/probes.h:18:25: fatal error: asm/opcodes.h: No such file or directory ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: ../net/netfilter/nft_payload.c:261:15: warning: 'tsum' may be used uninitialized in this function [-Wmaybe-uninitialized] ../include/net/checksum.h:71:9: warning: 'fsum' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/net/ethernet/apm/xgene/xgene_enet_cle.c:836:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] ------------------------------------------------------------------------------- arm64-defconfig : FAIL, 16 errors, 1 warnings, 0 section mismatches Errors: ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards Warnings: ../fs/btrfs/inode.c:1198:31: warning: 'cur_end' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig

7 years, 5 months

[PATCH v3 0/7] Add pwm and IIO timer drivers for stm32

by Benjamin Gaignard

version 3: - no change on mfd and pwm divers patches - add cross reference between bindings - change compatible to "st,stm32-timer-trigger" - fix attributes access rights - use string instead of int for master_mode and slave_mode - document device attributes in sysfs-bus-iio-timer-stm32 - udpate DT with the new compatible version 2: - keep only one compatible per driver - use DT parameters to describe hardware block configuration: - pwm channels, complementary output, counter size, break input - triggers accepted and create by IIO timers - change DT to limite use of reference to the node - interrupt is now in IIO timer driver - rename stm32-mfd-timer to stm32-gptimer (for general purpose timer) The following patches enable pwm and IIO Timer features for stm32 platforms. Those two features are mixed into the registers of the same hardware block (named general purpose timer) which lead to introduce a multifunctions driver on the top of them to be able to share the registers. In stm32 14 instances of timer hardware block exist, even if they all have the same register mapping they could have a different number of pwm channels and/or different triggers capabilities. We use various parameters in DT to describe the differences between hardware blocks The MFD (stm32-gptimer.c) takes care of clock and register mapping by using regmap. stm32_gptimer_dev structure is provided to its sub-node to share those information. PWM driver is implemented into pwm-stm32.c. Depending of the instance we may have up to 4 channels, sometime with complementary outputs or 32 bits counter instead of 16 bits. Some hardware blocks may also have a break input function which allows to stop pwm depending of a level, defined in devicetree, on an external pin. IIO timer driver (stm32-iio-timer.c and stm32-iio-timers.h) define a list of hardware triggers usable by hardware blocks like ADC, DAC or other timers. The matrix of possible connections between blocks is quite complex so we use trigger names and is_stm32_iio_timer_trigger() function to be sure that triggers are valid and configure the IPs. Possible triggers ar listed in include/dt-bindings/iio/timer/st,stm32-iio-timer.h At run time IIO timer hardware blocks can configure (through "master_mode" IIO device attribute) which internal signal (counter enable, reset, comparison block, etc...) is used to generate the trigger. By using "slave_mode" IIO device attribute timer can also configure on which event (level, rising edge) of the block is enabled. Since we can use trigger from one hardware to control an other block, we can use a pwm to control an other one. The following example shows how to configure pwm1 and pwm3 to make pwm3 generate pulse only when pwm1 pulse level is high. /sys/bus/iio/devices # ls iio:device0 iio:device1 trigger0 trigger1 configure timer1 to use pwm1 channel 0 as output trigger /sys/bus/iio/devices # echo 'OC1REF' > iio\:device0/master_mode configure timer3 to enable only when input is high /sys/bus/iio/devices # echo 'gated' > iio\:device1/slave_mode /sys/bus/iio/devices # cat trigger0/name tim1_trgo configure timer2 to use timer1 trigger is input /sys/bus/iio/devices # echo "tim1_trgo" > iio\:device1/trigger/current_trigger configure pwm3 channel 0 to generate a signal with a period of 100ms and a duty cycle of 50% /sys/devices/platform/soc/40000400.gptimer3/40000400.gptimer3:pwm3@0/pwm/pwmchip4 # echo 0 > export /sys/devices/platform/soc/40000400.gptimer3/40000400.gptimer3:pwm3@0/pwm/pwmchip4 # echo 100000000 > pwm0/period /sys/devices/platform/soc/40000400.gptimer3/40000400.gptimer3:pwm3@0/pwm/pwmchip4 # echo 50000000 > pwm0/duty_cycle /sys/devices/platform/soc/40000400.gptimer3/40000400.gptimer3:pwm3@0/pwm/pwmchip4# echo 1 > pwm0/enable here pwm3 channel 0, as expected, doesn't start because has to be triggered by pwm1 channel 0 configure pwm1 channel 0 to generate a signal with a period of 1s and a duty cycle of 50% /sys/devices/platform/soc/40010000.gptimer1/40010000.gptimer1:pwm1@0/pwm/pwmchip0 # echo 0 > export /sys/devices/platform/soc/40010000.gptimer1/40010000.gptimer1:pwm1@0/pwm/pwmchip0 # echo 1000000000 > pwm0/period /sys/devices/platform/soc/40010000.gptimer1/40010000.gptimer1:pwm1@0/pwm/pwmchip0 # echo 500000000 > pwm0/duty_cycle /sys/devices/platform/soc/40010000.gptimer1/40010000.gptimer1:pwm1@0/pwm/pwmchip0 # echo 1 > pwm0/enable finally pwm1 starts and pwm3 only generates pulse when pwm1 signal is high An other example to use a timer as source of clock for another device. Here timer1 is used a source clock for pwm3: /sys/bus/iio/devices # echo 100000 > trigger0/sampling_frequency /sys/bus/iio/devices # echo tim1_trgo > iio\:device1/trigger/current_trigger /sys/bus/iio/devices # echo 'external_clock' > iio\:device1/slave_mode /sys/devices/platform/soc/40000400.gptimer3/40000400.gptimer3:pwm3@0/pwm/pwmchip4 # echo 0 > export /sys/devices/platform/soc/40000400.gptimer3/40000400.gptimer3:pwm3@0/pwm/pwmchip4 # echo 1000000 > pwm0/period /sys/devices/platform/soc/40000400.gptimer3/40000400.gptimer3:pwm3@0/pwm/pwmchip4 # echo 500000 > pwm0/duty_cycle /sys/devices/platform/soc/40000400.gptimer3/40000400.gptimer3:pwm3@0/pwm/pwmchip4 # echo 1 > pwm0/enable Benjamin Gaignard (7): MFD: add bindings for stm32 general purpose timer driver MFD: add stm32 general purpose timer driver PWM: add pwm-stm32 DT bindings PWM: add pwm driver for stm32 plaftorm IIO: add bindings for stm32 timer trigger driver IIO: add STM32 timer trigger driver ARM: dts: stm32: add stm32 general purpose timer driver in DT .../ABI/testing/sysfs-bus-iio-timer-stm32 | 47 ++ .../bindings/iio/timer/stm32-timer-trigger.txt | 39 ++ .../bindings/mfd/stm32-general-purpose-timer.txt | 47 ++ .../devicetree/bindings/pwm/pwm-stm32.txt | 38 ++ arch/arm/boot/dts/stm32f429.dtsi | 333 +++++++++++++- arch/arm/boot/dts/stm32f469-disco.dts | 28 ++ drivers/iio/Kconfig | 2 +- drivers/iio/Makefile | 1 + drivers/iio/timer/Kconfig | 15 + drivers/iio/timer/Makefile | 1 + drivers/iio/timer/stm32-timer-trigger.c | 477 +++++++++++++++++++++ drivers/iio/trigger/Kconfig | 1 - drivers/mfd/Kconfig | 10 + drivers/mfd/Makefile | 2 + drivers/mfd/stm32-gptimer.c | 73 ++++ drivers/pwm/Kconfig | 8 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-stm32.c | 285 ++++++++++++ .../iio/timer/st,stm32-timer-triggers.h | 60 +++ include/linux/iio/timer/stm32-timer-trigger.h | 16 + include/linux/mfd/stm32-gptimer.h | 62 +++ 21 files changed, 1543 insertions(+), 3 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt create mode 100644 Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txt create mode 100644 drivers/iio/timer/Kconfig create mode 100644 drivers/iio/timer/Makefile create mode 100644 drivers/iio/timer/stm32-timer-trigger.c create mode 100644 drivers/mfd/stm32-gptimer.c create mode 100644 drivers/pwm/pwm-stm32.c create mode 100644 include/dt-bindings/iio/timer/st,stm32-timer-triggers.h create mode 100644 include/linux/iio/timer/stm32-timer-trigger.h create mode 100644 include/linux/mfd/stm32-gptimer.h -- 1.9.1

7 years, 5 months

next-20161206 build: 0 failures 3 warnings (next-20161206)

by Build bot for Mark Brown

Tree/Branch: next-20161206 Git describe: next-20161206 Commit: efe90db21f Add linux-next specific files for 20161206 Build Time: 98 min 51 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 3 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allmodconfig 3 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 3 2 ../net/netfilter/nft_payload.c:261:15: warning: 'tsum' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 ../include/net/checksum.h:71:9: warning: 'fsum' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../drivers/net/ethernet/apm/xgene/xgene_enet_cle.c:836:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ../net/netfilter/nft_payload.c:261:15: warning: 'tsum' may be used uninitialized in this function [-Wmaybe-uninitialized] ../include/net/checksum.h:71:9: warning: 'fsum' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: ../net/netfilter/nft_payload.c:261:15: warning: 'tsum' may be used uninitialized in this function [-Wmaybe-uninitialized] ../include/net/checksum.h:71:9: warning: 'fsum' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/net/ethernet/apm/xgene/xgene_enet_cle.c:836:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig

7 years, 5 months

master build: 0 failures 0 warnings (v4.9-rc8-9-gd9d0452)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.9-rc8-9-gd9d0452 Commit: d9d04527c7 Merge tag 'powerpc-4.9-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Build Time: 99 min 21 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years, 5 months

[PATCH] arm: kprobe: replace patch_lock to raw lock

by Yang Shi

When running kprobe on -rt kernel, the below bug is caught: BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:931 in_atomic(): 1, irqs_disabled(): 128, pid: 14, name: migration/0 INFO: lockdep is turned off. irq event stamp: 238 hardirqs last enabled at (237): [<80b5aecc>] _raw_spin_unlock_irqrestore+0x88/0x90 hardirqs last disabled at (238): [<80b56d88>] __schedule+0xec/0x94c softirqs last enabled at (0): [<80225584>] copy_process.part.5+0x30c/0x1994 softirqs last disabled at (0): [< (null)>] (null) Preemption disabled at:[<802f2b98>] cpu_stopper_thread+0xc0/0x140 CPU: 0 PID: 14 Comm: migration/0 Tainted: G O 4.8.3-rt2 #1 Hardware name: Freescale LS1021A [<80212e7c>] (unwind_backtrace) from [<8020cd2c>] (show_stack+0x20/0x24) [<8020cd2c>] (show_stack) from [<80689e14>] (dump_stack+0xa0/0xcc) [<80689e14>] (dump_stack) from [<8025a43c>] (___might_sleep+0x1b8/0x2a4) [<8025a43c>] (___might_sleep) from [<80b5b324>] (rt_spin_lock+0x34/0x74) [<80b5b324>] (rt_spin_lock) from [<80b5c31c>] (__patch_text_real+0x70/0xe8) [<80b5c31c>] (__patch_text_real) from [<80b5c3ac>] (patch_text_stop_machine+0x18/0x20) [<80b5c3ac>] (patch_text_stop_machine) from [<802f2920>] (multi_cpu_stop+0xfc/0x134) [<802f2920>] (multi_cpu_stop) from [<802f2ba0>] (cpu_stopper_thread+0xc8/0x140) [<802f2ba0>] (cpu_stopper_thread) from [<802563a4>] (smpboot_thread_fn+0x1a4/0x354) [<802563a4>] (smpboot_thread_fn) from [<80251d38>] (kthread+0x104/0x11c) [<80251d38>] (kthread) from [<80207f70>] (ret_from_fork+0x14/0x24) Since patch_text_stop_machine() is called in stop_machine() which disables IRQ, sleepable lock should be not used in this atomic context, so replace patch_lock to raw lock. Signed-off-by: Yang Shi <yang.shi(a)linaro.org> --- arch/arm/kernel/patch.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c index 69bda1a..1f665ac 100644 --- a/arch/arm/kernel/patch.c +++ b/arch/arm/kernel/patch.c @@ -15,7 +15,7 @@ struct patch { unsigned int insn; }; -static DEFINE_SPINLOCK(patch_lock); +static DEFINE_RAW_SPINLOCK(patch_lock); static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags) __acquires(&patch_lock) @@ -32,7 +32,7 @@ static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags) return addr; if (flags) - spin_lock_irqsave(&patch_lock, *flags); + raw_spin_lock_irqsave(&patch_lock, *flags); else __acquire(&patch_lock); @@ -47,7 +47,7 @@ static void __kprobes patch_unmap(int fixmap, unsigned long *flags) clear_fixmap(fixmap); if (flags) - spin_unlock_irqrestore(&patch_lock, *flags); + raw_spin_unlock_irqrestore(&patch_lock, *flags); else __release(&patch_lock); } -- 2.0.2

7 years, 5 months

[GIT PULL] [lsk-v4.4-android] linaro-android v4.4 topic branch update

by Amit Pundir

Hi Alex, Mark, Please consider following linaro-android pull request for "linux-linaro-lsk-v4.4-android" LSK branch. Boot tested on Qemu with Android M. KernelCI build job: https://kernelci.org/build/linaro-android/kernel/v4.4-4600-ga8575ee86e3e/ Regards, Amit Pundir The following changes since commit c39fa164766e4ead0594e8b6fd382b57fd9d5a1f: Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android (2016-11-29 16:06:48 +0800) are available in the git repository at: git://android.git.linaro.org/kernel/linaro-android lsk-v4.4-android for you to fetch changes up to a8575ee86e3ec89dde405193d61a6c0a958308cf: sched: tune: Fix lacking spinlock initialization (2016-12-01 15:18:44 +0530) ---------------------------------------------------------------- Amit Pundir (1): usb: gadget: f_mtp: simplify ptp NULL pointer check Anson Jacob (1): ANDROID: usb: gadget: function: cleanup: Add blank line after declaration Christoffer Dall (1): ANDROID: goldfish_fb: Set pixclock = 0 Greg Hackmann (8): BACKPORT: staging: goldfish: audio: add devicetree bindings BACKPORT: power: goldfish_battery: add devicetree bindings BACKPORT: Input: goldfish_events - add devicetree bindings BACKPORT: tty: goldfish: support platform_device with id -1 BACKPORT: staging: goldfish: audio: fix compiliation on arm ANDROID: video: goldfishfb: add devicetree bindings ANDROID: arch: x86: disable pic for Android toolchain ANDROID: goldfish: goldfish_pipe: fix locking errors Jason Hu (1): BACKPORT: Input: goldfish_events - enable ACPI-based enumeration for goldfish events Jin Qian (3): ANDROID: goldfish: add ranchu defconfigs arm64: rename ranchu defconfig to ranchu64 ANDROID: goldfish_pipe: fix allmodconfig build Joel Fernandes (3): UPSTREAM: timekeeping: Add a fast and NMI safe boot clock UPSTREAM: trace: Add an option for boot clock as trace clock UPSTREAM: trace: Update documentation for mono, mono_raw and boot clock Joshua Lang (1): ANDROID: goldfish_audio: Clear audio read buffer status after each read Julia Lawall (1): ANDROID: goldfish_pipe: fix call_kern.cocci warnings Ke Wang (1): sched: tune: Fix lacking spinlock initialization Lingfeng Yang (2): ANDROID: goldfish_events: no extra EV_SYN; register goldfish ANDROID: goldfish: Add goldfish sync driver Miodrag Dinic (1): BACKPORT: drivers: tty: goldfish: Add device tree bindings Viresh Kumar (1): cpufreq: sched: Fix kernel crash on accessing sysfs file Yu Ning (3): BACKPORT: goldfish: Enable ACPI-based enumeration for goldfish battery ANDROID: goldfish: Enable ACPI-based enumeration for goldfish framebuffer ANDROID: goldfish: Enable ACPI-based enumeration for goldfish audio Yurii Zubrytskyi (2): ANDROID: goldfish_pipe: bugfixes and performance improvements. ANDROID: goldfish_pipe: An implementation of more parallel pipe kbuild test robot (1): ANDROID: video: goldfishfb: fix platform_no_drv_owner.cocci warnings Documentation/devicetree/bindings/goldfish/audio.txt | 17 ++ Documentation/devicetree/bindings/goldfish/battery.txt | 17 ++ Documentation/devicetree/bindings/goldfish/events.txt | 17 ++ Documentation/devicetree/bindings/goldfish/tty.txt | 17 ++ Documentation/trace/ftrace.txt | 20 +++ arch/arm/configs/ranchu_defconfig | 315 +++++++++++++++++++++++++++++++++ arch/arm64/configs/ranchu64_defconfig | 311 +++++++++++++++++++++++++++++++++ arch/x86/Makefile | 2 + arch/x86/configs/i386_ranchu_defconfig | 423 +++++++++++++++++++++++++++++++++++++++++++++ arch/x86/configs/x86_64_ranchu_defconfig | 418 ++++++++++++++++++++++++++++++++++++++++++++ drivers/input/keyboard/goldfish_events.c | 45 ++++- drivers/platform/goldfish/Makefile | 3 +- drivers/platform/goldfish/goldfish_pipe.c | 287 +++++++++++------------------- drivers/platform/goldfish/goldfish_pipe.h | 91 ++++++++++ drivers/platform/goldfish/goldfish_pipe_v2.c | 889 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ drivers/power/goldfish_battery.c | 17 +- drivers/staging/goldfish/Kconfig | 6 + drivers/staging/goldfish/Makefile | 5 + drivers/staging/goldfish/goldfish_audio.c | 23 ++- drivers/staging/goldfish/goldfish_sync.c | 987 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ drivers/tty/goldfish.c | 40 +++-- drivers/usb/gadget/configfs.c | 5 - drivers/usb/gadget/function/f_accessory.c | 2 + drivers/usb/gadget/function/f_audio_source.c | 1 + drivers/usb/gadget/function/f_mtp.c | 6 +- drivers/usb/gadget/functions.c | 2 +- drivers/video/fbdev/goldfishfb.c | 18 +- include/linux/timekeeping.h | 1 + kernel/sched/cpufreq_sched.c | 4 +- kernel/sched/tune.c | 1 + kernel/time/timekeeping.c | 29 ++++ kernel/trace/trace.c | 1 + 32 files changed, 3805 insertions(+), 215 deletions(-) create mode 100644 Documentation/devicetree/bindings/goldfish/audio.txt create mode 100644 Documentation/devicetree/bindings/goldfish/battery.txt create mode 100644 Documentation/devicetree/bindings/goldfish/events.txt create mode 100644 Documentation/devicetree/bindings/goldfish/tty.txt create mode 100644 arch/arm/configs/ranchu_defconfig create mode 100644 arch/arm64/configs/ranchu64_defconfig create mode 100644 arch/x86/configs/i386_ranchu_defconfig create mode 100644 arch/x86/configs/x86_64_ranchu_defconfig create mode 100644 drivers/platform/goldfish/goldfish_pipe.h create mode 100644 drivers/platform/goldfish/goldfish_pipe_v2.c create mode 100644 drivers/staging/goldfish/goldfish_sync.c

7 years, 5 months

v4.9-rc8 build: 0 failures 0 warnings (v4.9-rc8)

by Build bot for Mark Brown

Tree/Branch: v4.9-rc8 Git describe: v4.9-rc8 Commit: 3e5de27e94 Linux 4.9-rc8 Build Time: 83 min 31 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years, 5 months

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linaro-kernel December 2016