# git rev-parse -q --verify 7bc08056a6dabc3a1442216daf527edf61ac24b6^{commit} 7bc08056a6dabc3a1442216daf527edf61ac24b6 already have revision, skipping fetch # git checkout -q -f -B kisskb 7bc08056a6dabc3a1442216daf527edf61ac24b6 # git clean -qxdf # < git log -1 # commit 7bc08056a6dabc3a1442216daf527edf61ac24b6 # Author: Andrew Donnellan # Date: Tue Jun 14 23:49:52 2022 +1000 # # powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address # # Add a special case to block_rtas_call() to allow the ibm,platform-dump RTAS # call through the RTAS filter if the buffer address is 0. # # According to PAPR, ibm,platform-dump is called with a null buffer address # to notify the platform firmware that processing of a particular dump is # finished. # # Without this, on a pseries machine with CONFIG_PPC_RTAS_FILTER enabled, an # application such as rtas_errd that is attempting to retrieve a dump will # encounter an error at the end of the retrieval process. # # Fixes: bd59380c5ba4 ("powerpc/rtas: Restrict RTAS requests from userspace") # Cc: stable@vger.kernel.org # Reported-by: Sathvika Vasireddy # Signed-off-by: Andrew Donnellan # Reviewed-by: Tyrel Datwyler # Reviewed-by: Nathan Lynch # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20220614134952.156010-1-ajd@linux.ibm.com # < /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 7bc08056a6dabc3a1442216daf527edf61ac24b6 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_sam440ep_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 44x/sam440ep_defconfig # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_sam440ep_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_sam440ep_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_sam440ep_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_44x_sam440ep_defconfig_powerpc-gcc5 # Build took: 0:00:25.222635