# git rev-parse -q --verify a39e75458e1ceb7fefaa3a0bd9df21558713cf0d^{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 a39e75458e1ceb7fefaa3a0bd9df21558713cf0d^{commit}
a39e75458e1ceb7fefaa3a0bd9df21558713cf0d
# git checkout -q -f -B kisskb a39e75458e1ceb7fefaa3a0bd9df21558713cf0d
# git clean -qxdf
# < git log -1
# commit a39e75458e1ceb7fefaa3a0bd9df21558713cf0d
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Thu Jun 25 15:33:11 2020 +0200
# 
#     Linux 4.19.130
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 a39e75458e1ceb7fefaa3a0bd9df21558713cf0d
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/stable-4.19_cell_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  cell_defconfig
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/stable-4.19_cell_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 8 ARCH=powerpc O=/kisskb/build/stable-4.19_cell_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/stable-4.19_cell_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/stable-4.19_cell_defconfig_powerpc-gcc4.9
# Build took: 0:05:57.461074