linaro-kernel March 2015

linaro-kernel@lists.linaro.org

58 participants
126 discussions

[RFC] vmstat: Avoid waking up idle-cpu to service shepherd work

by Viresh Kumar

A delayed work to schedule vmstat_shepherd() is queued at periodic intervals for internal working of vmstat core. This work and its timer end up waking an idle cpu sometimes, as this always stays on CPU0. Because we re-queue the work from its handler, idle_cpu() returns false and so the timer (used by delayed work) never migrates to any other CPU. This may not be the desired behavior always as waking up an idle CPU to queue work on few other CPUs isn't good from power-consumption point of view. In order to avoid waking up an idle core, we can replace schedule_delayed_work() with a normal work plus a separate timer. The timer handler will then queue the work after re-arming the timer. If the CPU was idle before the timer fired, idle_cpu() will mostly return true and the next timer shall be migrated to a non-idle CPU. But the timer core has a limitation, when the timer is re-armed from its handler, timer core disables migration of that timer to other cores. Details of that limitation are present in kernel/time/timer.c:__mod_timer() routine. Another simple yet effective solution can be to keep two timers with same handler and keep toggling between them, so that the above limitation doesn't hold true anymore. This patch replaces schedule_delayed_work() with schedule_work() plus two timers. After this, it was seen that the timer and its do get migrated to other non-idle CPUs, when the local cpu is idle. Tested-by: Vinayak Menon <vinmenon(a)codeaurora.org> Tested-by: Shiraz Hashim <shashim(a)codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- This patch isn't sent to say its the best way forward, but to get a discussion started on the same. mm/vmstat.c | 31 +++++++++++++++++++++++++------ 1 file changed, 25 insertions(+), 6 deletions(-) diff --git a/mm/vmstat.c b/mm/vmstat.c index 4f5cd974e11a..d45e4243a046 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1424,8 +1424,18 @@ static bool need_update(int cpu) * inactivity. */ static void vmstat_shepherd(struct work_struct *w); +static DECLARE_WORK(shepherd, vmstat_shepherd); -static DECLARE_DELAYED_WORK(shepherd, vmstat_shepherd); +/* + * Two timers are used here to avoid waking up an idle CPU. If a single timer is + * kept, then re-arming the timer from its handler doesn't let us migrate it. + */ +static struct timer_list shepherd_timer[2]; +#define toggle_timer() (shepherd_timer_index = !shepherd_timer_index, \ + &shepherd_timer[shepherd_timer_index]) + +static void vmstat_shepherd_timer(unsigned long data); +static int shepherd_timer_index; static void vmstat_shepherd(struct work_struct *w) { @@ -1441,15 +1451,19 @@ static void vmstat_shepherd(struct work_struct *w) &per_cpu(vmstat_work, cpu), 0); put_online_cpus(); +} - schedule_delayed_work(&shepherd, - round_jiffies_relative(sysctl_stat_interval)); +static void vmstat_shepherd_timer(unsigned long data) +{ + mod_timer(toggle_timer(), + jiffies + round_jiffies_relative(sysctl_stat_interval)); + schedule_work(&shepherd); } static void __init start_shepherd_timer(void) { - int cpu; + int cpu, i = -1; for_each_possible_cpu(cpu) INIT_DELAYED_WORK(per_cpu_ptr(&vmstat_work, cpu), @@ -1459,8 +1473,13 @@ static void __init start_shepherd_timer(void) BUG(); cpumask_copy(cpu_stat_off, cpu_online_mask); - schedule_delayed_work(&shepherd, - round_jiffies_relative(sysctl_stat_interval)); + while (++i < 2) { + init_timer(&shepherd_timer[i]); + shepherd_timer[i].function = vmstat_shepherd_timer; + }; + + mod_timer(toggle_timer(), + jiffies + round_jiffies_relative(sysctl_stat_interval)); } static void vmstat_cpu_dead(int node) -- 2.3.0.rc0.44.ga94655d

9 years, 8 months

[PATCH] clocksource: efm32: Use CLOCK_EVT_FEAT_PERIODIC for defining features

by Viresh Kumar

We have used CLOCK_EVT_MODE_PERIODIC instead of CLOCK_EVT_FEAT_PERIODIC while defining features. Fix it. Cc: Uwe Kleine-Koenig <u.kleine-koenig(a)pengutronix.de> Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- drivers/clocksource/time-efm32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clocksource/time-efm32.c b/drivers/clocksource/time-efm32.c index bba62f9deefb..9edeab37a14b 100644 --- a/drivers/clocksource/time-efm32.c +++ b/drivers/clocksource/time-efm32.c @@ -111,7 +111,7 @@ static irqreturn_t efm32_clock_event_handler(int irq, void *dev_id) static struct efm32_clock_event_ddata clock_event_ddata = { .evtdev = { .name = "efm32 clockevent", - .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_MODE_PERIODIC, + .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, .set_mode = efm32_clock_event_set_mode, .set_next_event = efm32_clock_event_set_next_event, .rating = 200, -- 2.3.0.rc0.44.ga94655d

9 years, 8 months

next-20150330 build: 2 failures 23 warnings (next-20150330)

by Build bot for Mark Brown

Tree/Branch: next-20150330 Git describe: next-20150330 Commit: 42bffc802c Add linux-next specific files for 20150330 Build Time: 21 min 1 sec Passed: 6 / 8 ( 75.00 %) Failed: 2 / 8 ( 25.00 %) Errors: 0 Warnings: 23 Section Mismatches: 0 Failed defconfigs: arm64-allmodconfig arm-allmodconfig Errors: ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : x86_64-allnoconfig 16 warnings 0 mismatches : arm64-allmodconfig 4 warnings 0 mismatches : arm-multi_v7_defconfig 8 warnings 0 mismatches : arm-allmodconfig 1 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 23 4 ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined 3 ../drivers/net/ethernet/smsc/smc91x.c:2208:6: warning: unused variable 'res' [-Wunused-variable] 2 ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../include/linux/dmapool.h:31:7: warning: 'struct device' declared inside parameter list 1 ../include/linux/dmapool.h:18:4: warning: its scope is only this definition or declaration, which is probably not what you want 1 ../include/linux/dmapool.h:18:4: warning: 'struct device' declared inside parameter list 1 ../drivers/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mmc/host/sh_mmcif.c:402:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/mmc/host/sh_mmcif.c:401:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/dma/xilinx/xilinx_vdma.c:502:5: warning: passing argument 2 of 'dma_pool_create' from incompatible pointer type 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/x86/kernel/cpu/common.c:1225:2: warning: right shift count >= width of type 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- x86_64-allnoconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../arch/x86/kernel/cpu/common.c:1225:2: warning: right shift count >= width of type ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 0 errors, 16 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/mmc/host/sh_mmcif.c:401:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/mmc/host/sh_mmcif.c:402:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/net/ethernet/smsc/smc91x.c:2208:6: warning: unused variable 'res' [-Wunused-variable] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type ../drivers/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: ../include/linux/dmapool.h:18:4: warning: 'struct device' declared inside parameter list ../include/linux/dmapool.h:18:4: warning: its scope is only this definition or declaration, which is probably not what you want ../include/linux/dmapool.h:31:7: warning: 'struct device' declared inside parameter list ../drivers/dma/xilinx/xilinx_vdma.c:502:5: warning: passing argument 2 of 'dma_pool_create' from incompatible pointer type ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 0 errors, 8 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/net/ethernet/smsc/smc91x.c:2208:6: warning: unused variable 'res' [-Wunused-variable] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/net/ethernet/smsc/smc91x.c:2208:6: warning: unused variable 'res' [-Wunused-variable] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-allnoconfig x86_64-defconfig

9 years, 8 months

v4.0-rc6 build: 0 failures 21 warnings (v4.0-rc6)

by Build bot for Mark Brown

Tree/Branch: v4.0-rc6 Git describe: v4.0-rc6 Commit: e42391cd04 Linux 4.0-rc6 Build Time: 22 min 8 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 21 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] 1 ....../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ....../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 8 months

master build: 0 failures 21 warnings (v4.0-rc5-152-g08f41f7c35ec)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc5-152-g08f41f7c35ec Commit: 08f41f7c35 Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Build Time: 22 min 57 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 21 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 8 months

master build: 0 failures 21 warnings (v4.0-rc5-131-g7fc377ecf452)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc5-131-g7fc377ecf452 Commit: 7fc377ecf4 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Build Time: 21 min 56 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 21 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 9 months

master build: 0 failures 21 warnings (v4.0-rc5-104-ga39bdfb590f5)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc5-104-ga39bdfb590f5 Commit: a39bdfb590 Merge git://www.linux-watchdog.org/linux-watchdog Build Time: 22 min 37 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 21 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 9 months

next-20150327 build: 1 failures 22 warnings (next-20150327)

by Build bot for Mark Brown

Tree/Branch: next-20150327 Git describe: next-20150327 Commit: c5a124cce9 Add linux-next specific files for 20150327 Build Time: 24 min 1 sec Passed: 7 / 8 ( 87.50 %) Failed: 1 / 8 ( 12.50 %) Errors: 7 Warnings: 22 Section Mismatches: 0 Failed defconfigs: arm-allmodconfig Errors: arm-allmodconfig ../fs/btrfs/inode.c:8094:2: error: implicit declaration of function 'iov_iter_alignment' [-Werror=implicit-function-declaration] ../fs/btrfs/inode.c:8105:26: error: dereferencing pointer to incomplete type ../fs/btrfs/inode.c:8106:29: error: dereferencing pointer to incomplete type ../fs/btrfs/inode.c:8107:12: error: dereferencing pointer to incomplete type ../fs/btrfs/inode.c:8107:39: error: dereferencing pointer to incomplete type ../fs/btrfs/inode.c:8140:2: error: implicit declaration of function 'iov_iter_count' [-Werror=implicit-function-declaration] ../drivers/net/ethernet/broadcom/bgmac.c:20:27: fatal error: bcm47xx_nvram.h: No such file or directory ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : x86_64-allnoconfig 15 warnings 0 mismatches : arm64-allmodconfig 4 warnings 0 mismatches : arm-multi_v7_defconfig 7 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Errors summary: 7 1 ../fs/btrfs/inode.c:8140:2: error: implicit declaration of function 'iov_iter_count' [-Werror=implicit-function-declaration] 1 ../fs/btrfs/inode.c:8107:39: error: dereferencing pointer to incomplete type 1 ../fs/btrfs/inode.c:8107:12: error: dereferencing pointer to incomplete type 1 ../fs/btrfs/inode.c:8106:29: error: dereferencing pointer to incomplete type 1 ../fs/btrfs/inode.c:8105:26: error: dereferencing pointer to incomplete type 1 ../fs/btrfs/inode.c:8094:2: error: implicit declaration of function 'iov_iter_alignment' [-Werror=implicit-function-declaration] 1 ../drivers/net/ethernet/broadcom/bgmac.c:20:27: fatal error: bcm47xx_nvram.h: No such file or directory Warnings Summary: 22 4 ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined 2 ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../include/linux/dmapool.h:31:7: warning: 'struct device' declared inside parameter list 1 ../include/linux/dmapool.h:18:4: warning: its scope is only this definition or declaration, which is probably not what you want 1 ../include/linux/dmapool.h:18:4: warning: 'struct device' declared inside parameter list 1 ../drivers/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mmc/host/sh_mmcif.c:402:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/mmc/host/sh_mmcif.c:401:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/dma/xilinx/xilinx_vdma.c:502:5: warning: passing argument 2 of 'dma_pool_create' from incompatible pointer type 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/x86/kernel/cpu/common.c:1223:2: warning: right shift count >= width of type 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- x86_64-allnoconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../arch/x86/kernel/cpu/common.c:1223:2: warning: right shift count >= width of type ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 15 warnings, 0 section mismatches Warnings: ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/mmc/host/sh_mmcif.c:401:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/mmc/host/sh_mmcif.c:402:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: ../include/linux/dmapool.h:18:4: warning: 'struct device' declared inside parameter list ../include/linux/dmapool.h:18:4: warning: its scope is only this definition or declaration, which is probably not what you want ../include/linux/dmapool.h:31:7: warning: 'struct device' declared inside parameter list ../drivers/dma/xilinx/xilinx_vdma.c:502:5: warning: passing argument 2 of 'dma_pool_create' from incompatible pointer type ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 7 errors, 7 warnings, 0 section mismatches Errors: ../fs/btrfs/inode.c:8094:2: error: implicit declaration of function 'iov_iter_alignment' [-Werror=implicit-function-declaration] ../fs/btrfs/inode.c:8105:26: error: dereferencing pointer to incomplete type ../fs/btrfs/inode.c:8106:29: error: dereferencing pointer to incomplete type ../fs/btrfs/inode.c:8107:12: error: dereferencing pointer to incomplete type ../fs/btrfs/inode.c:8107:39: error: dereferencing pointer to incomplete type ../fs/btrfs/inode.c:8140:2: error: implicit declaration of function 'iov_iter_count' [-Werror=implicit-function-declaration] ../drivers/net/ethernet/broadcom/bgmac.c:20:27: fatal error: bcm47xx_nvram.h: No such file or directory Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig x86_64-defconfig arm-allnoconfig arm64-defconfig

9 years, 9 months

[PATCH v1] arm64:mm: enable the kernel execute attribute for HEAD_TEXT segment

by Zhichang Yuan

From: yuanzhichang <yuanzhichang(a)hisilicon.com> In the patch whose title is "add better page protections to arm64" (commit da141706aea52c1a9fbd28cb8d289b78819f5436), The direct mapping page table entries for HEAD_TEXT segment were configured as PAGE_KERNEL, without the executable attribute. But when the secondary CPUs are booting based on spin-table mechanism, some functions in head.S are needed to run. Only PAGE_KERNEL dosen't work for this case. This patch will configure the page attributes as PAGE_KERNEL_EXEC for HEAD_TEXT segment. Signed-off-by: Zhichang Yuan <yuanzhichang(a)hisilicon.com> --- arch/arm64/mm/mmu.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index c6daaf6..ad08dfd 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -305,8 +305,8 @@ static void __init __map_memblock(phys_addr_t start, phys_addr_t end) * for now. This will get more fine grained later once all memory * is mapped */ - unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE); - unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE); + phys_addr_t kernel_x_start = round_down(__pa(_text), SECTION_SIZE); + phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE); if (end < kernel_x_start) { create_mapping(start, __phys_to_virt(start), @@ -315,6 +315,18 @@ static void __init __map_memblock(phys_addr_t start, phys_addr_t end) create_mapping(start, __phys_to_virt(start), end - start, PAGE_KERNEL); } else { + /* + * At this moment, the text segment must reside in valid physical + * memory section range to make sure the text are totally mapped. + * If mapping from non-section aligned address is support, then + * _text can be used here directly in replace to kernel_x_start. + */ + phys_addr_t max_left, min_right; + + max_left = max(kernel_x_start, start); + min_right = min(kernel_x_end, end); + BUG_ON(max_left != kernel_x_start || min_right != kernel_x_end); + if (start < kernel_x_start) create_mapping(start, __phys_to_virt(start), kernel_x_start - start, @@ -394,12 +406,12 @@ void __init fixup_executable(void) { #ifdef CONFIG_DEBUG_RODATA /* now that we are actually fully mapped, make the start/end more fine grained */ - if (!IS_ALIGNED((unsigned long)_stext, SECTION_SIZE)) { - unsigned long aligned_start = round_down(__pa(_stext), + if (!IS_ALIGNED((unsigned long)_text, SECTION_SIZE)) { + unsigned long aligned_start = round_down(__pa(_text), SECTION_SIZE); create_mapping(aligned_start, __phys_to_virt(aligned_start), - __pa(_stext) - aligned_start, + __pa(_text) - aligned_start, PAGE_KERNEL); } @@ -418,7 +430,7 @@ void mark_rodata_ro(void) { create_mapping_late(__pa(_stext), (unsigned long)_stext, (unsigned long)_etext - (unsigned long)_stext, - PAGE_KERNEL_EXEC | PTE_RDONLY); + (PAGE_KERNEL_EXEC | PTE_RDONLY) & ~PTE_WRITE); } #endif -- 1.9.1

9 years, 9 months

master build: 0 failures 21 warnings (v4.0-rc5-96-g3c435c1e472b)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc5-96-g3c435c1e472b Commit: 3c435c1e47 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux Build Time: 23 min 17 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 21 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 9 months

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linaro-kernel March 2015