# git rev-parse -q --verify 8881af30b4211dbbe141d6e0ee2251d45c538dc7^{commit}
8881af30b4211dbbe141d6e0ee2251d45c538dc7
already have revision, skipping fetch
# git checkout -q -f -B kisskb 8881af30b4211dbbe141d6e0ee2251d45c538dc7
# git clean -qxdf
# < git log -1
# commit 8881af30b4211dbbe141d6e0ee2251d45c538dc7
# Author: Gustavo A. R. Silva <gustavoars@kernel.org>
# Date:   Mon Sep 13 16:45:28 2021 -0500
# 
#     Makefile: Enable -Wimplicit-fallthrough for Clang
#     
#     With the recent fixes for fallthrough warnings, it is now possible to
#     enable -Wimplicit-fallthrough for Clang.
#     
#     Special thanks to Nathan Chancellor who fixed the Clang bug[1][2]
#     that put the application of this patch to a halt, temporarily. This
#     bugfix only appears in Clang 14.0.0, so older versions still contain
#     the bug and -Wimplicit-fallthrough won't be enabled for them, for
#     now.
#     
#     This concludes a long journey and now we are finally getting rid
#     of the unintentional fallthrough bug-class in the kernel, entirely. :)
#     
#     [1] https://github.com/llvm/llvm-project/commit/9ed4a94d6451046a51ef393cd62f00710820a7e8
#     [2] https://bugs.llvm.org/show_bug.cgi?id=51094
#     
#     Link: https://github.com/KSPP/linux/issues/115
#     Link: https://github.com/ClangBuiltLinux/linux/issues/236
#     [The conditional "ifneq" was idea of Nathan]
#     Suggested-by: Nathan Chancellor <nathan@kernel.org>
#     Reviewed-by: Nathan Chancellor <nathan@kernel.org>
#     Tested-by: Nathan Chancellor <nathan@kernel.org>
#     Co-developed-by: Kees Cook <keescook@chromium.org>
#     Signed-off-by: Kees Cook <keescook@chromium.org>
#     Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
# < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-gcc --version
# < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-ld --version
# < git log --format=%s --max-count=1 8881af30b4211dbbe141d6e0ee2251d45c538dc7
# < make -s -j 32 ARCH=microblaze O=/kisskb/build/gustavoars_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  mmu_defconfig
# < make -s -j 32 ARCH=microblaze O=/kisskb/build/gustavoars_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  help
# make -s -j 32 ARCH=microblaze O=/kisskb/build/gustavoars_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  olddefconfig
# make -s -j 32 ARCH=microblaze O=/kisskb/build/gustavoars_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  
Kernel: arch/microblaze/boot/linux.bin is ready  (#1)
Completed OK
# rm -rf /kisskb/build/gustavoars_mmu_defconfig_microblaze
# Build took: 0:00:35.446662