# git rev-parse -q --verify 454099efd693c76a25d6326d2c5b1d7003b480f9^{commit}
454099efd693c76a25d6326d2c5b1d7003b480f9
already have revision, skipping fetch
# git checkout -q -f -B kisskb 454099efd693c76a25d6326d2c5b1d7003b480f9
# git clean -qxdf
# < git log -1
# commit 454099efd693c76a25d6326d2c5b1d7003b480f9
# Author: Christophe Leroy <christophe.leroy@c-s.fr>
# Date:   Fri Feb 14 06:53:00 2020 +0000
# 
#     powerpc/6xx: Fix power_save_ppc32_restore() with CONFIG_VMAP_STACK
#     
#     power_save_ppc32_restore() is called during exception entry, before
#     re-enabling the MMU. It substracts KERNELBASE from the address
#     of nap_save_msscr0 to access it.
#     
#     With CONFIG_VMAP_STACK enabled, data MMU translation has already been
#     re-enabled, so power_save_ppc32_restore() has to access
#     nap_save_msscr0 by its virtual address.
#     
#     Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
#     Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
#     Fixes: cd08f109e262 ("powerpc/32s: Enable CONFIG_VMAP_STACK")
#     Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/7bce32ccbab3ba3e3e0f27da6961bf6313df97ed.1581663140.git.christophe.leroy@c-s.fr
# < /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 454099efd693c76a25d6326d2c5b1d7003b480f9
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
# Added to kconfig CONFIG_NUMA=n
# yes \n | make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_le_defconfig+NO_NUMA_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 10 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x31dc): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init()
The function __boot_from_prom() references
the function __init prom_init().
This is often because __boot_from_prom lacks a __init 
annotation or the annotation of prom_init is wrong.

WARNING: vmlinux.o(.text+0x33c8): 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-fixes_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5
# Build took: 0:05:26.603568