# git rev-parse -q --verify fc37a1632d40c80c067eb1bc235139f5867a2667^{commit} fc37a1632d40c80c067eb1bc235139f5867a2667 already have revision, skipping fetch # git checkout -q -f -B kisskb fc37a1632d40c80c067eb1bc235139f5867a2667 # git clean -qxdf # < git log -1 # commit fc37a1632d40c80c067eb1bc235139f5867a2667 # Author: Desnes A. Nunes do Rosario # Date: Thu Feb 27 10:47:15 2020 -0300 # # powerpc: fix hardware PMU exception bug on PowerVM compatibility mode systems # # PowerVM systems running compatibility mode on a few Power8 revisions are # still vulnerable to the hardware defect that loses PMU exceptions arriving # prior to a context switch. # # The software fix for this issue is enabled through the CPU_FTR_PMAO_BUG # cpu_feature bit, nevertheless this bit also needs to be set for PowerVM # compatibility mode systems. # # Fixes: 68f2f0d431d9ea4 ("powerpc: Add a cpu feature CPU_FTR_PMAO_BUG") # Signed-off-by: Desnes A. Nunes do Rosario # Reviewed-by: Leonardo Bras # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20200227134715.9715-1-desnesn@linux.ibm.com # < /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 fc37a1632d40c80c067eb1bc235139f5867a2667 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc5200_defconfig # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- help # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- olddefconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:72:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here /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/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec': /kisskb/src/fs/ext4/extents.c:5009:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port': /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5400:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5400:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2598:6: 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:1859:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/io_uring.c: In function '__io_sqe_files_update.isra.81': /kisskb/src/fs/io_uring.c:5824:13: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /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] INFO: Uncompressed kernel (size 0x6c3150) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6c3150) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6c3150) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6b2b04) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-5.6.0-rc2-gfc37a1632d40 Created: Sat Feb 29 01:22:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3363986 Bytes = 3285.14 KiB = 3.21 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.6.0-rc2-gfc37a1632d40 Created: Sat Feb 29 01:22:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3393977 Bytes = 3314.43 KiB = 3.24 MiB Load Address: 00700000 Entry Point: 00700278 Image Name: Linux-5.6.0-rc2-gfc37a1632d40 Created: Sat Feb 29 01:22:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3393618 Bytes = 3314.08 KiB = 3.24 MiB Load Address: 00700000 Entry Point: 00700278 Image Name: Linux-5.6.0-rc2-gfc37a1632d40 Created: Sat Feb 29 01:22:15 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3393975 Bytes = 3314.43 KiB = 3.24 MiB Load Address: 00700000 Entry Point: 00700278 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 # Build took: 0:01:11.119221