# git rev-parse -q --verify a84ca704d8306a949578d36c028c8e1bab3dcf0b^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test
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 a84ca704d8306a949578d36c028c8e1bab3dcf0b^{commit}
a84ca704d8306a949578d36c028c8e1bab3dcf0b
# git checkout -q -f -B kisskb a84ca704d8306a949578d36c028c8e1bab3dcf0b
# git clean -qxdf
# < git log -1
# commit a84ca704d8306a949578d36c028c8e1bab3dcf0b
# Author: Haowen Bai <baihaowen@meizu.com>
# Date:   Sun Apr 24 16:26:41 2022 +0800
# 
#     selftests/powerpc/pmu: Fix unsigned function returning negative constant
#     
#     The function __perf_reg_mask has an unsigned return type, but returns a
#     negative constant to indicate an error condition. So we change unsigned
#     to int.
#     
#     Signed-off-by: Haowen Bai <baihaowen@meizu.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/1650788802-14402-1-git-send-email-baihaowen@meizu.com
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux-ld --version
# < git log --format=%s --max-count=1 a84ca704d8306a949578d36c028c8e1bab3dcf0b
# < make -s -j 32 ARCH=m68k O=/kisskb/build/powerpc-next_m68k-defconfig_m68k-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux-  defconfig
# < make -s -j 32 ARCH=m68k O=/kisskb/build/powerpc-next_m68k-defconfig_m68k-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux-  help
# make -s -j 32 ARCH=m68k O=/kisskb/build/powerpc-next_m68k-defconfig_m68k-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux-  olddefconfig
# make -s -j 32 ARCH=m68k O=/kisskb/build/powerpc-next_m68k-defconfig_m68k-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-next_m68k-defconfig_m68k-gcc11
# Build took: 0:01:34.987173