# git rev-parse -q --verify bd13be2e1e1ae48f4900837f785cadc9b994e9e7^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-stable-rc.git linux-5.4.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 bd13be2e1e1ae48f4900837f785cadc9b994e9e7^{commit}
bd13be2e1e1ae48f4900837f785cadc9b994e9e7
# git checkout -q -f -B kisskb bd13be2e1e1ae48f4900837f785cadc9b994e9e7
# git clean -qxdf
# < git log -1
# commit bd13be2e1e1ae48f4900837f785cadc9b994e9e7
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Thu Jan 23 19:30:22 2020 +0100
# 
#     Linux 5.4.15-rc1
# < /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 bd13be2e1e1ae48f4900837f785cadc9b994e9e7
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/stable-rc-5.4_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/fsp2_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/stable-rc-5.4_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x95b414) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xa00000)
Image Name:   Linux-5.4.15-rc1-gbd13be2e1e1a
Created:      Fri Jan 24 07:46:37 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    4209419 Bytes = 4110.76 KiB = 4.01 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/stable-rc-5.4_44x_fsp2_defconfig_powerpc-gcc5
# Build took: 0:05:00.141172