# git rev-parse -q --verify c8855e990a676dc5054395b63239e347ee56c85a^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/stable linux-4.19.y
remote: error: refs/tags/v5.4.174 does not point to a valid object!        
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 c8855e990a676dc5054395b63239e347ee56c85a^{commit}
c8855e990a676dc5054395b63239e347ee56c85a
# git checkout -q -f -B kisskb c8855e990a676dc5054395b63239e347ee56c85a
# git clean -qxdf
# < git log -1
# commit c8855e990a676dc5054395b63239e347ee56c85a
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Thu Jan 27 09:04:34 2022 +0100
# 
#     Linux 4.19.226
#     
#     Link: https://lore.kernel.org/r/20220124183943.102762895@linuxfoundation.org
#     Tested-by: Pavel Machek (CIP) <pavel@denx.de>
#     Tested-by: Shuah Khan <skhan@linuxfoundation.org>
#     Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
#     Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
#     Tested-by: Jon Hunter <jonathanh@nvidia.com>
#     Tested-by: Hulk Robot <hulkrobot@huawei.com>
#     Tested-by: Guenter Roeck <linux@roeck-us.net>
#     Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# < /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 c8855e990a676dc5054395b63239e347ee56c85a
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-4.19_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 32 ARCH=powerpc O=/kisskb/build/stable-4.19_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-4.19_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-4.19_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 0x8deeec) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x900000)
Image Name:   Linux-4.19.226-gc8855e990a67
Created:      Thu Jan 27 19:45:30 2022
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    4008662 Bytes = 3914.71 KiB = 3.82 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/stable-4.19_44x_fsp2_defconfig_powerpc-gcc5
# Build took: 0:04:36.733056