# git rev-parse -q --verify 454099efd693c76a25d6326d2c5b1d7003b480f9^{commit} 454099efd693c76a25d6326d2c5b1d7003b480f9 already have revision, skipping fetch # git checkout -q -f -B kisskb 454099efd693c76a25d6326d2c5b1d7003b480f9 # git clean -qxdf # < git log -1 # commit 454099efd693c76a25d6326d2c5b1d7003b480f9 # Author: Christophe Leroy # Date: Fri Feb 14 06:53:00 2020 +0000 # # powerpc/6xx: Fix power_save_ppc32_restore() with CONFIG_VMAP_STACK # # power_save_ppc32_restore() is called during exception entry, before # re-enabling the MMU. It substracts KERNELBASE from the address # of nap_save_msscr0 to access it. # # With CONFIG_VMAP_STACK enabled, data MMU translation has already been # re-enabled, so power_save_ppc32_restore() has to access # nap_save_msscr0 by its virtual address. # # Reported-by: Larry Finger # Signed-off-by: Christophe Leroy # Fixes: cd08f109e262 ("powerpc/32s: Enable CONFIG_VMAP_STACK") # Tested-by: Larry Finger # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/7bce32ccbab3ba3e3e0f27da6961bf6313df97ed.1581663140.git.christophe.leroy@c-s.fr # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 454099efd693c76a25d6326d2c5b1d7003b480f9 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_85xx_ppa8548_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 85xx/ppa8548_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_85xx_ppa8548_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- INFO: Uncompressed kernel (size 0x4a91b4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x500000) Image Name: Linux-5.6.0-rc2-g454099efd693 Created: Mon Feb 17 16:44:37 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2414940 Bytes = 2358.34 KiB = 2.30 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-fixes_85xx_ppa8548_defconfig_powerpc-gcc5 # Build took: 0:00:47.090451