linaro-kernel April 2015

linaro-kernel@lists.linaro.org

45 participants
149 discussions

[PATCH] clockevents: Shutdown detached clockevent device

by Viresh Kumar

A clockevent device is marked DETACHED when it is replaced by another clockevent device. The device is shutdown properly for drivers that implement legacy ->set_mode() callback, as we call ->set_mode() for CLOCK_EVT_MODE_UNUSED as well. But for the new per-state callback interface, we skip shutting down the device, as we thought its an internal state change. That wasn't correct. The effect is that the device is left programmed in oneshot or periodic mode. Fall-back to 'case CLOCK_EVT_STATE_SHUTDOWN', to shutdown the device. Fixes: bd624d75db21 ("clockevents: Introduce mode specific callbacks") Reported-by: Daniel Lezcano <daniel.lezcano(a)linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- Tested on Samsung's Arndale (Dual Cortex A15) board. kernel/time/clockevents.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 25d942d1da27..629be4e21e96 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -117,11 +117,7 @@ static int __clockevents_set_state(struct clock_event_device *dev, /* Transition with new state-specific callbacks */ switch (state) { case CLOCK_EVT_STATE_DETACHED: - /* - * This is an internal state, which is guaranteed to go from - * SHUTDOWN to DETACHED. No driver interaction required. - */ - return 0; + /* The clockevent device is getting replaced. Shut it down. */ case CLOCK_EVT_STATE_SHUTDOWN: return dev->set_state_shutdown(dev); -- 2.3.0.rc0.44.ga94655d

9 years, 2 months

[PATCH 0/5] arm64: add kdump support

by AKASHI Takahiro

This patch set enables kdump (crash dump kernel) support on arm64 on top of Geoff's kexec patchset. In this version, there are some arm64-specific usage/constraints: 1) "mem=" boot parameter must be specified on crash dump kernel 2) Kvm will not be enabled on crash dump kernel even if configured See commit messages and Documentation/kdump/kdump.txt for details. The only concern I have is whether or not we can use the exact same kernel as both system kernel and crash dump kernel. The current arm64 kernel is not relocatable in the exact sense but I have no problems in using the same binary for testing kdump. I tested the code with - ATF v1.1 + EDK2(UEFI) v3.0-rc0 - kernel v4.0-rc4 + Geoff' kexec v8 on Base fast model, using my yet-to-be-submitted kexec-tools [1]. You may want to start a kernel with the following boot parameter: crashkernel=64M@2240M and try $ kexec -p --load <vmlinux> --append ... $ echo c > /proc/sysrq-trigger To examine vmcore (/proc/vmcore), you may use - gdb v7.7 or later - crash + a small patch (to recognize v4.0 kernel) [1] https://git.linaro.org/people/takahiro.akashi/kexec-tools.git AKASHI Takahiro (5): arm64: kdump: reserve memory for crash dump kernel arm64: kdump: implement machine_crash_shutdown() arm64: kdump: do not go into EL2 before starting a crash dump kernel arm64: add kdump support arm64: enable kdump in the arm64 defconfig Documentation/kdump/kdump.txt | 31 ++++++++++++++- arch/arm64/Kconfig | 12 ++++++ arch/arm64/configs/defconfig | 1 + arch/arm64/include/asm/kexec.h | 34 +++++++++++++++- arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/crash_dump.c | 71 +++++++++++++++++++++++++++++++++ arch/arm64/kernel/machine_kexec.c | 55 +++++++++++++++++++++++++- arch/arm64/kernel/process.c | 7 +++- arch/arm64/kernel/setup.c | 78 +++++++++++++++++++++++++++++++++++++ arch/arm64/kernel/smp.c | 10 ++++- 10 files changed, 294 insertions(+), 6 deletions(-) create mode 100644 arch/arm64/kernel/crash_dump.c -- 1.7.9.5

9 years, 2 months

master build: 0 failures 22 warnings (v4.0-rc7-42-ge5e02de0665e)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc7-42-ge5e02de0665e Commit: e5e02de066 Merge tag 'pm+acpi-4.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Build Time: 18 min 27 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 22 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 18 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-multi_v7_defconfig 7 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 22 3 ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] 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, 18 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/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../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/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../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-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 7 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] ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig x86_64-allnoconfig x86_64-defconfig arm-allnoconfig arm64-defconfig

9 years, 2 months

master build: 0 failures 22 warnings (v4.0-rc7-36-g3cfb2f7976a2)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc7-36-g3cfb2f7976a2 Commit: 3cfb2f7976 Merge tag 'pci-v4.0-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Build Time: 19 min 44 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 22 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 18 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-multi_v7_defconfig 7 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 22 3 ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] 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, 18 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/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../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-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 7 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/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../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 x86_64-allnoconfig x86_64-defconfig arm-allnoconfig arm64-defconfig

9 years, 2 months

next-20150409 build: 0 failures 33 warnings (next-20150409)

by Build bot for Mark Brown

Tree/Branch: next-20150409 Git describe: next-20150409 Commit: ce9797369a Add linux-next specific files for 20150409 Build Time: 21 min 2 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 33 Section Mismatches: 1 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 27 warnings 3 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-multi_v7_defconfig 10 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 33 3 ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] 2 ../drivers/soc/mediatek/mtk-pmic-wrap.c:567:6: warning: unused variable 'rdata' [-Wunused-variable] 2 ../drivers/soc/mediatek/mtk-pmic-wrap.c:566:6: warning: unused variable 'wdata' [-Wunused-variable] 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 ../sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] 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: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/gpu/drm/msm/msm_iommu.c:63:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/msm_iommu.c:102:3: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/msm_gem.c:490:4: warning: format '%d' expects argument of type 'int', but argument 11 has type 'size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/msm_drv.c:97:59: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/gpu/drm/msm/msm_drv.c:219:3: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'resource_size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/msm_drv.c:180:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/gpu/drm/msm/msm_drv.c:113:39: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/gpu/drm/msm/msm_drv.c:105:41: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/gpu/drm/msm/edp/edp_aux.c:158:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'ssize_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/edp/edp_aux.c:135:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/dsi/dsi_host.c:1042:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/dsi/dsi_host.c:1025:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 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/nvme-core.c:1822:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/block/nvme-core.c:1794:29: warning: cast to pointer from integer of different size [-Wint-to-pointer-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 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] Section Mismatch Summary: 1 3 WARNING: drivers/staging/fsl-mc/bus/mc-bus-driver.o(.init.text+0x18c): Section mismatch in reference from the function init_module() to the function .exit.text:dprc_driver_exit() =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 27 warnings, 3 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/gpu/drm/msm/edp/edp_aux.c:135:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/gpu/drm/msm/edp/edp_aux.c:158:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'ssize_t' [-Wformat=] ../drivers/gpu/drm/msm/msm_drv.c:97:59: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/gpu/drm/msm/msm_drv.c:105:41: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/gpu/drm/msm/msm_drv.c:113:39: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/gpu/drm/msm/msm_drv.c:180:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/gpu/drm/msm/msm_drv.c:219:3: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'resource_size_t' [-Wformat=] ../drivers/gpu/drm/msm/msm_gem.c:490:4: warning: format '%d' expects argument of type 'int', but argument 11 has type 'size_t' [-Wformat=] ../drivers/gpu/drm/msm/msm_iommu.c:63:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'size_t' [-Wformat=] ../drivers/gpu/drm/msm/msm_iommu.c:102:3: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'size_t' [-Wformat=] ../drivers/gpu/drm/msm/dsi/dsi_host.c:1025:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/gpu/drm/msm/dsi/dsi_host.c:1042:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../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/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../drivers/soc/mediatek/mtk-pmic-wrap.c:567:6: warning: unused variable 'rdata' [-Wunused-variable] ../drivers/soc/mediatek/mtk-pmic-wrap.c:566:6: warning: unused variable 'wdata' [-Wunused-variable] ../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:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] Section Mismatches: WARNING: drivers/staging/fsl-mc/bus/mc-bus-driver.o(.init.text+0x18c): Section mismatch in reference from the function init_module() to the function .exit.text:dprc_driver_exit() WARNING: drivers/staging/fsl-mc/bus/mc-bus-driver.o(.init.text+0x18c): Section mismatch in reference from the function init_module() to the function .exit.text:dprc_driver_exit() WARNING: drivers/staging/fsl-mc/bus/mc-bus-driver.o(.init.text+0x18c): Section mismatch in reference from the function init_module() to the function .exit.text:dprc_driver_exit() ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 10 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=] ../sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] ../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/block/nvme-core.c:1794:29: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/block/nvme-core.c:1822:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/soc/mediatek/mtk-pmic-wrap.c:567:6: warning: unused variable 'rdata' [-Wunused-variable] ../drivers/soc/mediatek/mtk-pmic-wrap.c:566:6: warning: unused variable 'wdata' [-Wunused-variable] ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../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 x86_64-allnoconfig x86_64-defconfig arm-allnoconfig arm64-defconfig

9 years, 2 months

master build: 0 failures 22 warnings (v4.0-rc7-30-g20624d17963c)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc7-30-g20624d17963c Commit: 20624d1796 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux Build Time: 20 min 38 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 22 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 18 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-multi_v7_defconfig 7 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 22 3 ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] 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, 18 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/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../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/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/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ../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] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 7 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/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-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/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 x86_64-allnoconfig x86_64-defconfig arm-allnoconfig arm64-defconfig

9 years, 2 months

master build: 0 failures 22 warnings (v4.0-rc7-16-g7b43b47373d4)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc7-16-g7b43b47373d4 Commit: 7b43b47373 Merge tag 'media/v3.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Build Time: 20 min 15 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 22 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 18 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-multi_v7_defconfig 7 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 22 3 ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] 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, 18 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/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../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-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 7 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/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-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/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 x86_64-allnoconfig x86_64-defconfig arm-allnoconfig arm64-defconfig

9 years, 2 months

[RFC PATCH 0/7] Pseudo-NMI for arm64 using ICC_PMR_EL1 (GICv3)

by Daniel Thompson

This patchset provides a pseudo-NMI for arm64 kernels by reimplementing the irqflags macros to modify the GIC PMR (the priority mask register is accessible as a system register on GICv3 and later) rather than the PSR. The pseudo-NMI changes are support by a prototype implementation of arch_trigger_all_cpu_backtrace that allows the new code to be exercised. In addition to the arm64 changes I've bundled in a few patches from other patchsets to make the patchset self-contained. Of particular note of the serial break emulation patch which allows ^B^R^K to be used instead of a serial break to trigger SysRq-L (FVP UART sockets don't seem to support serial breaks). This makes it easy to run arch_trigger_all_cpu_backtrace from an IRQ handler (i.e. somewhere with interrupts masked so we are forced to preempt and take the NMI). The code works-for-me (tm) but there are currently some pretty serious limitations. 1. Exercised only on the foundation model with gicv3 support. It has not been exercised on real silicon or even on the more advanced ARM models. 2. It has been written without any documentation describing GICv3 architecture (which has not yet been released by ARM). I've been guessing about the behaviour based on the ARMv8 and GICv2 architecture specs. The code works on the foundation model but I cannot check that it conforms architecturally. 3. Requires GICv3+ hardware together with firmware support to enable GICv3 features at EL3. If CONFIG_USE_ICC_SYSREGS_FOR_IRQFLAGS is enabled the kernel will not boot on older hardware. It will be hard to diagnose because we will crash very early in the boot (i.e. before the call to start_kernel). Auto-detection might be possible but the performance and code size cost of adding conditional code to the irqflags macros probably makes it impractical. As such it may never be possible to remove this limitation (although it might be possible to find a way to survive long enough to panic and show the results on the console). 4. No benchmarking (see #1 above). Unlike the PSR, updates to the PMR do not self synchronize which requires me to sprinkle isb instructions fairly liberally. I've been told the cost of isb varies from almost-free (A53) to somewhat costly (A57) thus we export this code to reduce kernel performance. However this needs to be quantified and I am currently unable to do this. I'd really like to but don't have any suitable hardware. 5. There is no code in el1_irq to detect NMI and switch from IRQ to NMI handling. This means all the irq handling machinary is re-entered in order to handle the NMI. This not safe and deadlocks are likely. This is a severe limitation although, in this proof-of-concept work, NMI can only be triggered by SysRq-L or severe kernel damage. This means we just about get away with it for simple test (lockdep detects that we are doing wrong and shows a backtrace). This is definitely the first thing that needs to be tackled to take this code further. Note also that alternative approaches to implementing a pseudo-NMI on arm64 are possible but only through runtime cooperation with other software components in the system, potentially both those running at EL3 and at secure EL1. I should like to explore these options in future but, as far as I know, this is the only sane way to provide NMI-like features whilst being implementable entirely in non-secure EL1[1] [1] Except for a single register write to ICC_SRE_EL3 by the EL3 firmware (and already implemented by ARM trusted firmware). Daniel Thompson (7): serial: Emulate break using control characters printk: Simple implementation for NMI backtracing irqchip: gic-v3: Reset BPR during initialization arm64: irqflags: Reorder the fiq & async macros arm64: irqflags: Use ICC sysregs to implement IRQ masking arm64: irqflags: Automatically identify I bit mis-management arm64: Add support for on-demand backtrace of other CPUs arch/arm64/Kconfig | 16 ++++ arch/arm64/include/asm/assembler.h | 72 +++++++++++++++-- arch/arm64/include/asm/hardirq.h | 2 +- arch/arm64/include/asm/irq.h | 5 ++ arch/arm64/include/asm/irqflags.h | 130 ++++++++++++++++++++++++++++-- arch/arm64/include/asm/ptrace.h | 10 +++ arch/arm64/include/asm/smp.h | 4 + arch/arm64/include/uapi/asm/ptrace.h | 8 ++ arch/arm64/kernel/entry.S | 70 ++++++++++++++--- arch/arm64/kernel/head.S | 27 +++++++ arch/arm64/kernel/irq.c | 6 ++ arch/arm64/kernel/smp.c | 70 +++++++++++++++++ arch/arm64/mm/cache.S | 4 +- arch/arm64/mm/proc.S | 19 +++++ drivers/irqchip/irq-gic-v3.c | 70 ++++++++++++++++- include/linux/irqchip/arm-gic-v3.h | 6 +- include/linux/irqchip/arm-gic.h | 2 +- include/linux/printk.h | 20 +++++ include/linux/serial_core.h | 83 +++++++++++++++----- init/Kconfig | 3 + kernel/printk/Makefile | 1 + kernel/printk/nmi_backtrace.c | 148 +++++++++++++++++++++++++++++++++++ lib/Kconfig.debug | 15 ++++ 23 files changed, 746 insertions(+), 45 deletions(-) create mode 100644 kernel/printk/nmi_backtrace.c -- 2.1.0

9 years, 2 months

next-20150408 build: 0 failures 28 warnings (next-20150408)

by Build bot for Mark Brown

Tree/Branch: next-20150408 Git describe: next-20150408 Commit: a897436e0e Add linux-next specific files for 20150408 Build Time: 20 min 14 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 28 Section Mismatches: 1 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 24 warnings 3 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-multi_v7_defconfig 8 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 28 3 ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] 2 ../drivers/soc/mediatek/mtk-pmic-wrap.c:567:6: warning: unused variable 'rdata' [-Wunused-variable] 2 ../drivers/soc/mediatek/mtk-pmic-wrap.c:566:6: warning: unused variable 'wdata' [-Wunused-variable] 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 ../sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] 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: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/gpu/drm/msm/msm_iommu.c:63:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/msm_iommu.c:102:3: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/msm_gem.c:484:4: warning: format '%d' expects argument of type 'int', but argument 11 has type 'size_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/msm_drv.c:97:59: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/gpu/drm/msm/msm_drv.c:180:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/gpu/drm/msm/msm_drv.c:113:39: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/gpu/drm/msm/msm_drv.c:105:41: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/gpu/drm/msm/edp/edp_aux.c:158:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'ssize_t' [-Wformat=] 1 ../drivers/gpu/drm/msm/edp/edp_aux.c:135:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 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 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] Section Mismatch Summary: 1 3 WARNING: drivers/staging/fsl-mc/bus/mc-bus-driver.o(.init.text+0x18c): Section mismatch in reference from the function init_module() to the function .exit.text:dprc_driver_exit() =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 24 warnings, 3 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] ../drivers/gpu/drm/msm/edp/edp_aux.c:135:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/gpu/drm/msm/edp/edp_aux.c:158:3: warning: format '%d' expects argument of type 'int', but argument 3 has type 'ssize_t' [-Wformat=] ../drivers/gpu/drm/msm/msm_drv.c:97:59: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/gpu/drm/msm/msm_drv.c:105:41: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/gpu/drm/msm/msm_drv.c:113:39: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/gpu/drm/msm/msm_drv.c:180:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/gpu/drm/msm/msm_gem.c:484:4: warning: format '%d' expects argument of type 'int', but argument 11 has type 'size_t' [-Wformat=] ../drivers/gpu/drm/msm/msm_iommu.c:63:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'size_t' [-Wformat=] ../drivers/gpu/drm/msm/msm_iommu.c:102:3: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'size_t' [-Wformat=] ../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/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/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../drivers/soc/mediatek/mtk-pmic-wrap.c:567:6: warning: unused variable 'rdata' [-Wunused-variable] ../drivers/soc/mediatek/mtk-pmic-wrap.c:566:6: warning: unused variable 'wdata' [-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/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] Section Mismatches: WARNING: drivers/staging/fsl-mc/bus/mc-bus-driver.o(.init.text+0x18c): Section mismatch in reference from the function init_module() to the function .exit.text:dprc_driver_exit() WARNING: drivers/staging/fsl-mc/bus/mc-bus-driver.o(.init.text+0x18c): Section mismatch in reference from the function init_module() to the function .exit.text:dprc_driver_exit() WARNING: drivers/staging/fsl-mc/bus/mc-bus-driver.o(.init.text+0x18c): Section mismatch in reference from the function init_module() to the function .exit.text:dprc_driver_exit() ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 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=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/soc/mediatek/mtk-pmic-wrap.c:567:6: warning: unused variable 'rdata' [-Wunused-variable] ../drivers/soc/mediatek/mtk-pmic-wrap.c:566:6: warning: unused variable 'wdata' [-Wunused-variable] ../drivers/media/v4l2-core/videobuf2-core.c:3228:26: warning: unused variable 'fileio' [-Wunused-variable] ../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 x86_64-allnoconfig x86_64-defconfig arm-allnoconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

9 years, 2 months

[PATCH v10 00/11] sched: consolidation of CPU capacity and usage

by Vincent Guittot

This patchset consolidates several changes in the capacity and the usage tracking of the CPU. It provides a frequency invariant metric of the usage of CPUs and generally improves the accuracy of load/usage tracking in the scheduler. The frequency invariant metric is the foundation required for the consolidation of cpufreq and implementation of a fully invariant load tracking. These are currently WIP and require several changes to the load balancer (including how it will use and interprets load and capacity metrics) and extensive validation. The frequency invariance is done with arch_scale_freq_capacity and this patchset doesn't provide the backends of the function which are architecture dependent. As discussed at LPC14, Morten and I have consolidated our changes into a single patchset to make it easier to review and merge. During load balance, the scheduler evaluates the number of tasks that a group of CPUs can handle. The current method assumes that tasks have a fix load of SCHED_LOAD_SCALE and CPUs have a default capacity of SCHED_CAPACITY_SCALE. This assumption generates wrong decision by creating ghost cores or by removing real ones when the original capacity of CPUs is different from the default SCHED_CAPACITY_SCALE. With this patch set, we don't try anymore to evaluate the number of available cores based on the group_capacity but instead we evaluate the usage of a group and compare it with its capacity. This patchset mainly replaces the old capacity_factor method by a new one and keeps the general policy almost unchanged. These new metrics will be also used in later patches. The CPU usage is based on a running time tracking version of the current implementation of the load average tracking. I also have a version that is based on the new implementation proposal [1] but I haven't provide the patches and results as [1] is still under review. I can provide change above [1] to change how CPU usage is computed and to adapt to new mecanism. Change since V9 - add a dedicated patch for removing unused capacity_orig - update some comments and fix typo - change the condition for actively migrating task on CPU with higher capacity Change since V8 - reorder patches Change since V7 - add freq invariance for usage tracking - add freq invariance for scale_rt - update comments and commits' message - fix init of utilization_avg_contrib - fix prefer_sibling Change since V6 - add group usage tracking - fix some commits' messages - minor fix like comments and argument order Change since V5 - remove patches that have been merged since v5 : patches 01, 02, 03, 04, 05, 07 - update commit log and add more details on the purpose of the patches - fix/remove useless code with the rebase on patchset [2] - remove capacity_orig in sched_group_capacity as it is not used - move code in the right patch - add some helper function to factorize code Change since V4 - rebase to manage conflicts with changes in selection of busiest group Change since V3: - add usage_avg_contrib statistic which sums the running time of tasks on a rq - use usage_avg_contrib instead of runnable_avg_sum for cpu_utilization - fix replacement power by capacity - update some comments Change since V2: - rebase on top of capacity renaming - fix wake_affine statistic update - rework nohz_kick_needed - optimize the active migration of a task from CPU with reduced capacity - rename group_activity by group_utilization and remove unused total_utilization - repair SD_PREFER_SIBLING and use it for SMT level - reorder patchset to gather patches with same topics Change since V1: - add 3 fixes - correct some commit messages - replace capacity computation by activity - take into account current cpu capacity [1] https://lkml.org/lkml/2014/10/10/131 [2] https://lkml.org/lkml/2014/7/25/589 Morten Rasmussen (2): sched: Track group sched_entity usage contributions sched: Make sched entity usage tracking scale-invariant Vincent Guittot (9): sched: add utilization_avg_contrib sched: remove frequency scaling from cpu_capacity sched: make scale_rt invariant with frequency sched: add per rq cpu_capacity_orig sched: get CPU's usage statistic sched: replace capacity_factor by usage sched; remove unused capacity_orig from sched: add SD_PREFER_SIBLING for SMT level sched: move cfs task on a CPU with higher capacity include/linux/sched.h | 21 ++- kernel/sched/core.c | 15 +-- kernel/sched/debug.c | 12 +- kernel/sched/fair.c | 366 +++++++++++++++++++++++++++++++------------------- kernel/sched/sched.h | 15 ++- 5 files changed, 271 insertions(+), 158 deletions(-) -- 1.9.1

9 years, 2 months

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linaro-kernel April 2015