# git rev-parse -q --verify b1112139a103b4b1101d0d2d72931f2d33d8c978^{commit}
b1112139a103b4b1101d0d2d72931f2d33d8c978
already have revision, skipping fetch
# git checkout -q -f -B kisskb b1112139a103b4b1101d0d2d72931f2d33d8c978
# git clean -qxdf
# < git log -1
# commit b1112139a103b4b1101d0d2d72931f2d33d8c978
# Author: Sergei Trofimovich <slyfox@gentoo.org>
# Date:   Tue Mar 17 00:07:18 2020 +0000
# 
#     Makefile: disallow data races on gcc-10 as well
#     
#     gcc-10 will rename --param=allow-store-data-races=0
#     to -fno-allow-store-data-races.
#     
#     The flag change happened at https://gcc.gnu.org/PR92046.
#     
#     Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
#     Acked-by: Jiri Kosina <jkosina@suse.cz>
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.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 b1112139a103b4b1101d0d2d72931f2d33d8c978
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 24 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: modpost: vmlinux.o(.text+0x2fc8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5
# Build took: 0:04:02.000632