# git rev-parse -q --verify af3d0a68698c7e5df8b72267086b23422a3954bb^{commit}
af3d0a68698c7e5df8b72267086b23422a3954bb
already have revision, skipping fetch
# git checkout -q -f -B kisskb af3d0a68698c7e5df8b72267086b23422a3954bb
# git clean -qxdf
# < git log -1
# commit af3d0a68698c7e5df8b72267086b23422a3954bb
# Author: Christophe Leroy <christophe.leroy@c-s.fr>
# Date:   Fri Mar 6 16:49:49 2020 +0000
# 
#     powerpc/kasan: Fix shadow memory protection with CONFIG_KASAN_VMALLOC
#     
#     With CONFIG_KASAN_VMALLOC, new page tables are created at the time
#     shadow memory for vmalloc area is unmapped. If some parts of the
#     page table still have entries to the zero page shadow memory, the
#     entries are wrongly marked RW.
#     
#     With CONFIG_KASAN_VMALLOC, almost the entire kernel address space
#     is managed by KASAN. To make it simple, just create KASAN page tables
#     for the entire kernel space at kasan_init(). That doesn't use much
#     more space, and that's anyway already done for hash platforms.
#     
#     Fixes: 3d4247fcc938 ("powerpc/32: Add support of KASAN_VMALLOC")
#     Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/ef5248fc1f496c6b0dfdb59380f24968f25f75c5.1583513368.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 af3d0a68698c7e5df8b72267086b23422a3954bb
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64le_defconfig
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64le_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x31e4): 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_ppc64le_defconfig_powerpc-gcc5
# Build took: 0:02:50.887209