# git rev-parse -q --verify a5dde5b54c02a2b1f839939ee89aa69caca3e02c^{commit} a5dde5b54c02a2b1f839939ee89aa69caca3e02c already have revision, skipping fetch # git checkout -q -f -B kisskb a5dde5b54c02a2b1f839939ee89aa69caca3e02c # git clean -qxdf # < git log -1 # commit a5dde5b54c02a2b1f839939ee89aa69caca3e02c # Author: Michal Suchanek # Date: Thu Mar 15 20:15:52 2018 +0100 # # powerpc/64: Use barrier_nospec in syscall entry # # On powerpc syscall entry is done in assembly so patch in an explicit # barrier_nospec. # # Signed-off-by: Michal Suchanek # [mpe: Move the barrier to immediately prior to the vulnerable load, # and add a comment trying to explain why. Drop the barrier from # syscall_dotrace, because that syscall number comes from the # kernel.] # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 a5dde5b54c02a2b1f839939ee89aa69caca3e02c # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_corenet64_smp_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- corenet64_smp_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_corenet64_smp_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- arch/powerpc/kernel/module.o: In function `module_finalize': /kisskb/src/arch/powerpc/kernel/module.c:78: undefined reference to `.do_barrier_nospec_fixups' arch/powerpc/kernel/module.o:(.toc+0x0): undefined reference to `powerpc_barrier_nospec' /kisskb/src/Makefile:1032: recipe for target 'vmlinux' failed make[1]: *** [vmlinux] Error 1 Makefile:146: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_corenet64_smp_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/powerpc-next_corenet64_smp_defconfig_powerpc-5.3 # Build took: 0:01:30.499357