# git rev-parse -q --verify 63bbbcd8ed53c404649e0b4248c1e5d42c41ac97^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/stable linux-4.19.y
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 63bbbcd8ed53c404649e0b4248c1e5d42c41ac97^{commit}
63bbbcd8ed53c404649e0b4248c1e5d42c41ac97
# git checkout -q -f -B kisskb 63bbbcd8ed53c404649e0b4248c1e5d42c41ac97
# git clean -qxdf
# < git log -1
# commit 63bbbcd8ed53c404649e0b4248c1e5d42c41ac97
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Sat Jun 22 08:15:22 2019 +0200
# 
#     Linux 4.19.54
# < /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 63bbbcd8ed53c404649e0b4248c1e5d42c41ac97
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/stable-4.19_ppc64le_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64le_defconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/stable-4.19_ppc64le_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: modpost: Found 3 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_ppc64le_defconfig_ppc64le-gcc5
# Build took: 0:05:31.822927