# git rev-parse -q --verify 3f51a5add7bc61eddbd1049eb0fbd7ee95cd08ac^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test
# git rev-parse -q --verify 3f51a5add7bc61eddbd1049eb0fbd7ee95cd08ac^{commit}
3f51a5add7bc61eddbd1049eb0fbd7ee95cd08ac
# git checkout -q -f -B kisskb 3f51a5add7bc61eddbd1049eb0fbd7ee95cd08ac
# git clean -qxdf
# < git log -1
# commit 3f51a5add7bc61eddbd1049eb0fbd7ee95cd08ac
# Author: Christophe Leroy <christophe.leroy@csgroup.eu>
# Date:   Thu Dec 2 13:00:27 2021 +0100
# 
#     powerpc/code-patching: Replace patch_instruction() by ppc_inst_write() in selftests
#     
#     The purpose of selftests is to check that instructions are
#     properly formed. Not to check that they properly run.
#     
#     For that test it uses normal memory, not special test
#     memory.
#     
#     In preparation of a future patch enforcing patch_instruction()
#     to be used only on valid text areas, implement a ppc_inst_write()
#     instruction which is the complement of ppc_inst_read(). This
#     new function writes the formated instruction in valid kernel
#     memory and doesn't bother about icache.
#     
#     Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/7cf5335cc07ca9b6f8cdaa20ca9887fce4df3bea.1638446239.git.christophe.leroy@csgroup.eu
# < /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 3f51a5add7bc61eddbd1049eb0fbd7ee95cd08ac
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]
Completed OK
# rm -rf /kisskb/build/powerpc-next_pseries_le_defconfig_powerpc-gcc5
# Build took: 0:04:06.680836