# git rev-parse -q --verify a41426c5f97c5492ce7988d729dd65e592b86f6f^{commit} a41426c5f97c5492ce7988d729dd65e592b86f6f already have revision, skipping fetch # git checkout -q -f -B kisskb a41426c5f97c5492ce7988d729dd65e592b86f6f # git clean -qxdf # < git log -1 # commit a41426c5f97c5492ce7988d729dd65e592b86f6f # Author: Christophe Leroy # Date: Fri Apr 17 11:58:36 2020 +0000 # # powerpc/mm: Fix CONFIG_PPC_KUAP_DEBUG on PPC32 # # CONFIG_PPC_KUAP_DEBUG is not selectable because it depends on PPC_32 # which doesn't exists. # # Fixing it leads to a deadlock due to a vital register getting # clobbered in _switch(). # # Change dependency to PPC32 and use r0 instead of r4 in _switch() # # Fixes: e2fb9f544431 ("powerpc/32: Prepare for Kernel Userspace Access Protection") # Cc: stable@vger.kernel.org # v5.2+ # Signed-off-by: Christophe Leroy # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/540242f7d4573f7cdf1b3bf46bb35f743b2cd68f.1587124651.git.christophe.leroy@c-s.fr # < /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 a41426c5f97c5492ce7988d729dd65e592b86f6f # < make -s -j 48 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 48 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 48 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 48 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/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/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:471:21: note: 'pdeo' was declared here /kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec': /kisskb/src/fs/ext4/extents.c:4774:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/namei.c: In function 'handle_dots': /kisskb/src/fs/namei.c:1805:10: warning: 'inode' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/namei.c:1805:10: warning: 'seq' 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:5497:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5497:9: 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.94': /kisskb/src/fs/io_uring.c:6701:13: 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 0x6c70d8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6c70d8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6c70d8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-5.7.0-rc2-ga41426c5f97c Created: Wed Apr 22 00:25:38 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3405865 Bytes = 3326.04 KiB = 3.25 MiB Load Address: 00700000 Entry Point: 00700278 Image Name: Linux-5.7.0-rc2-ga41426c5f97c Created: Wed Apr 22 00:25:38 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3406943 Bytes = 3327.09 KiB = 3.25 MiB Load Address: 00700000 Entry Point: 00700278 INFO: Uncompressed kernel (size 0x6b6a8c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-5.7.0-rc2-ga41426c5f97c Created: Wed Apr 22 00:25:38 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3377153 Bytes = 3298.00 KiB = 3.22 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.7.0-rc2-ga41426c5f97c Created: Wed Apr 22 00:25:39 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3406895 Bytes = 3327.05 KiB = 3.25 MiB Load Address: 00700000 Entry Point: 00700278 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 # Build took: 0:01:08.516786