# git rev-parse -q --verify 36468c325e3aeb621c7565f8a8313a2eaafeda08^{commit}
36468c325e3aeb621c7565f8a8313a2eaafeda08
already have revision, skipping fetch
# git checkout -q -f -B kisskb 36468c325e3aeb621c7565f8a8313a2eaafeda08
# git clean -qxdf
# < git log -1
# commit 36468c325e3aeb621c7565f8a8313a2eaafeda08
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Sun Feb 9 11:59:01 2020 +0100
# 
#     powerpc/powernv: no need to check return value of debugfs_create functions
#     
#     When calling debugfs functions, there is no need to ever check the
#     return value.  The function can work or not, but the code logic should
#     never do something different based on this.
#     
#     Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20200209105901.1620958-6-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 36468c325e3aeb621c7565f8a8313a2eaafeda08
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# Added to kconfig CONFIG_PERF_EVENTS=n
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: 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/powerpc-next_powernv_defconfig+NO_PERF_ppc64le-gcc5
# Build took: 0:03:03.868577