# git rev-parse -q --verify 7c0eda1a04340a1de09bdf6521853e3bc0637c3b^{commit}
7c0eda1a04340a1de09bdf6521853e3bc0637c3b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7c0eda1a04340a1de09bdf6521853e3bc0637c3b
# git clean -qxdf
# < git log -1
# commit 7c0eda1a04340a1de09bdf6521853e3bc0637c3b
# Author: Michal Suchanek <msuchanek@suse.de>
# Date:   Fri Mar 20 11:20:18 2020 +0100
# 
#     powerpc/perf: split callchain.c by bitness
#     
#     Building callchain.c with !COMPAT proved quite ugly with all the
#     defines. Splitting out the 32bit and 64bit parts looks better.
#     
#     No code change intended.
#     
#     Signed-off-by: Michal Suchanek <msuchanek@suse.de>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/a20027bf1074935a7934ee2a6757c99ea047e70d.1584699455.git.msuchanek@suse.de
# < /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 7c0eda1a04340a1de09bdf6521853e3bc0637c3b
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+UP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64_defconfig
# Added to kconfig CONFIG_SMP=n
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+UP_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/powerpc-next_ppc64_defconfig+UP_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/powerpc-next_ppc64_defconfig+UP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text.unlikely+0x2b0): Section mismatch in reference from the function .early_init_mmu() to the function .init.text:.radix__early_init_mmu()
The function .early_init_mmu() references
the function __init .radix__early_init_mmu().
This is often because .early_init_mmu lacks a __init 
annotation or the annotation of .radix__early_init_mmu is wrong.

WARNING: vmlinux.o(.text.unlikely+0x2bc): Section mismatch in reference from the function .early_init_mmu() to the function .init.text:.hash__early_init_mmu()
The function .early_init_mmu() references
the function __init .hash__early_init_mmu().
This is often because .early_init_mmu lacks a __init 
annotation or the annotation of .hash__early_init_mmu is wrong.

Completed OK
# rm -rf /kisskb/build/powerpc-next_ppc64_defconfig+UP_powerpc-gcc5
# Build took: 0:04:02.357961