# git rev-parse -q --verify 84920cc7fbe10e838689e8e1437dfd18d6e54a2c^{commit}
84920cc7fbe10e838689e8e1437dfd18d6e54a2c
already have revision, skipping fetch
# git checkout -q -f -B kisskb 84920cc7fbe10e838689e8e1437dfd18d6e54a2c
# git clean -qxdf
# < git log -1
# commit 84920cc7fbe10e838689e8e1437dfd18d6e54a2c
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Wed May 6 08:13:35 2020 +0200
# 
#     Linux 4.19.121
# < /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 84920cc7fbe10e838689e8e1437dfd18d6e54a2c
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/stable-4.19_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/stable-4.19_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 80 ARCH=powerpc O=/kisskb/build/stable-4.19_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/stable-4.19_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: modpost: Found 1 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
Completed OK
# rm -rf /kisskb/build/stable-4.19_powernv_defconfig_powerpc-gcc5
# Build took: 0:02:46.318766