# git rev-parse -q --verify da73fcd8cfdc3d0ef49280fa0d511723a0220e03^{commit} da73fcd8cfdc3d0ef49280fa0d511723a0220e03 already have revision, skipping fetch # git checkout -q -f -B kisskb da73fcd8cfdc3d0ef49280fa0d511723a0220e03 # git clean -qxdf # < git log -1 # commit da73fcd8cfdc3d0ef49280fa0d511723a0220e03 # Merge: 3f1266ec704d 8f868d68d335 # Author: Linus Torvalds # Date: Thu Dec 5 16:35:53 2019 -0800 # # Merge branch 'pipe-rework' (patches from David Howells) # # Merge two fixes for the pipe rework from David Howells: # "Here are a couple of patches to fix bugs syzbot found in the pipe # changes: # # - An assertion check will sometimes trip when polling a pipe because # the ring size and indices used are approximate and may be being # changed simultaneously. # # An equivalent approximate calculation was done previously, but # without the assertion check, so I've just dropped the check. To # make it accurate, the pipe mutex would need to be taken or the spin # lock could be used - but usage of the spinlock would need to be # rolled out into splice, iov_iter and other places for that. # # - The index mask and the max_usage values cannot be cached across # pipe_wait() as F_SETPIPE_SZ could have been called during the wait. # This can cause pipe_write() to break" # # * pipe-rework: # pipe: Fix missing mask update after pipe_wait() # pipe: Remove assertion from pipe_poll() # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 da73fcd8cfdc3d0ef49280fa0d511723a0220e03 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0xF8446544 # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n # Added to kconfig CONFIG_UBSAN=n # yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- In file included from /kisskb/src/arch/powerpc/xmon/xmon.c:64:0: /kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_powerpc': /kisskb/src/arch/powerpc/xmon/dis-asm.h:16:2: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat] /kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_spu': /kisskb/src/arch/powerpc/xmon/dis-asm.h:22:2: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat] /kisskb/src/drivers/bus/fsl-mc/fsl-mc-bus.c: In function 'fsl_mc_get_endpoint': /kisskb/src/drivers/bus/fsl-mc/fsl-mc-bus.c:718:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/bus/fsl-mc/fsl-mc-bus.c:718:9: warning: (near initialization for 'endpoint_desc.type') [-Wmissing-braces] /kisskb/src/drivers/bus/fsl-mc/fsl-mc-bus.c:719:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/bus/fsl-mc/fsl-mc-bus.c:719:9: warning: (near initialization for 'endpoint1.type') [-Wmissing-braces] /kisskb/src/drivers/bus/fsl-mc/fsl-mc-bus.c:720:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/bus/fsl-mc/fsl-mc-bus.c:720:9: warning: (near initialization for 'endpoint2.type') [-Wmissing-braces] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/hda/hdac_regmap.c: In function 'hda_reg_write': /kisskb/src/sound/hda/hdac_regmap.c:284:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/bpf/btf.c:3466:1: error: expected identifier before '}' token make[3]: *** [/kisskb/src/scripts/Makefile.build:266: kernel/bpf/btf.o] Error 1 make[2]: *** [/kisskb/src/scripts/Makefile.build:503: kernel/bpf] Error 2 make[2]: *** Waiting for unfinished jobs.... /kisskb/src/arch/powerpc/kernel/eeh.c:1769:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/sched/cputime.c: In function 'kcpustat_field': /kisskb/src/kernel/sched/cputime.c:1007:6: warning: 'val' may be used uninitialized in this function [-Wuninitialized] make[1]: *** [/kisskb/src/Makefile:1692: kernel] Error 2 make[1]: *** Waiting for unfinished jobs.... /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1377:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c: In function 'arm_v7s_map': /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:482:7: warning: 'cptep' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:478:22: note: 'cptep' was declared here /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr': /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here /kisskb/src/drivers/leds/leds-el15203000.c: In function 'el15203000_probe': /kisskb/src/drivers/leds/leds-el15203000.c:246:8: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/temperature/mlx90632.c: In function 'mlx90632_read_raw': /kisskb/src/drivers/iio/temperature/mlx90632.c:351:37: warning: 'object_old_raw' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/temperature/mlx90632.c:432:56: note: 'object_old_raw' was declared here /kisskb/src/drivers/iio/temperature/mlx90632.c:351:37: warning: 'object_new_raw' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/temperature/mlx90632.c:432:40: note: 'object_new_raw' was declared here /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c: In function 'vcn_v2_5_hw_init': /kisskb/src/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c:282:2: warning: 'r' may be used uninitialized in this function [-Wuninitialized] make: *** [Makefile:179: sub-make] Error 2 Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 # Build took: 0:01:52.580950