# git rev-parse -q --verify c21dc62879c153cfa5950ec3d0e8c5eb9565c46a^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next
# git rev-parse -q --verify c21dc62879c153cfa5950ec3d0e8c5eb9565c46a^{commit}
c21dc62879c153cfa5950ec3d0e8c5eb9565c46a
# git checkout -q -f -B kisskb c21dc62879c153cfa5950ec3d0e8c5eb9565c46a
# git clean -qxdf
# < git log -1
# commit c21dc62879c153cfa5950ec3d0e8c5eb9565c46a
# Merge: fa6304910b7c 90d39628ac79
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Mon Dec 21 21:51:22 2020 +0900
# 
#     Merge branch 'kconfig' into for-next
# < /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 c21dc62879c153cfa5950ec3d0e8c5eb9565c46a
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/kbuild_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# Added to kconfig CONFIG_SMP=y
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/kbuild_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 32 ARCH=powerpc O=/kisskb/build/kbuild_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4121:warning: override: reassigning to symbol SMP
# make -s -j 32 ARCH=powerpc O=/kisskb/build/kbuild_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/platforms/powermac/smp.c: In function 'smp_core99_cpu_disable':
/kisskb/src/arch/powerpc/platforms/powermac/smp.c:914:2: error: implicit declaration of function 'cleanup_cpu_mmu_context' [-Werror=implicit-function-declaration]
  cleanup_cpu_mmu_context();
  ^
cc1: all warnings being treated as errors
make[4]: *** [/kisskb/src/scripts/Makefile.build:279: arch/powerpc/platforms/powermac/smp.o] Error 1
make[3]: *** [/kisskb/src/scripts/Makefile.build:496: arch/powerpc/platforms/powermac] Error 2
make[2]: *** [/kisskb/src/scripts/Makefile.build:496: arch/powerpc/platforms] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1805: arch/powerpc] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:185: __sub-make] Error 2
Command 'make -s -j 32 ARCH=powerpc O=/kisskb/build/kbuild_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/kbuild_pmac32_defconfig+SMP_powerpc-gcc5
# Build took: 0:01:00.305785