# git gc
# git rev-parse -q --verify 6861025cd04f5c10af4c542065de4201d8a9eb90^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next
# git rev-parse -q --verify 6861025cd04f5c10af4c542065de4201d8a9eb90^{commit}
6861025cd04f5c10af4c542065de4201d8a9eb90
# git checkout -q -f -B kisskb 6861025cd04f5c10af4c542065de4201d8a9eb90
# git clean -qxdf
# < git log -1
# commit 6861025cd04f5c10af4c542065de4201d8a9eb90
# Merge: 6c02f6f4124b dd024ff25b0c
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Sat Dec 19 20:32:54 2020 +0900
# 
#     Merge branch 'kbuild' into for-next
# < /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 6861025cd04f5c10af4c542065de4201d8a9eb90
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/kbuild_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/kbuild_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/kbuild_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/kbuild_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/kernel/rcu/update.c:578:0:
/kisskb/src/kernel/rcu/tasks.h:710:13: warning: 'show_rcu_tasks_rude_gp_kthread' defined but not used [-Wunused-function]
 static void show_rcu_tasks_rude_gp_kthread(void) {}
             ^
INFO: Uncompressed kernel (size 0xa76e88) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xb00000)
Image Name:   Linux-5.10.0-rc7-g6861025cd04f
Created:      Sat Dec 19 23:25:58 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    4561645 Bytes = 4454.73 KiB = 4.35 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/kbuild_44x_fsp2_defconfig_powerpc-gcc5
# Build took: 0:06:41.148297