# git rev-parse -q --verify 5e45834c3b34d6321f70a5267533e632bf8e773a^{commit}
5e45834c3b34d6321f70a5267533e632bf8e773a
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5e45834c3b34d6321f70a5267533e632bf8e773a
# git clean -qxdf
# < git log -1
# commit 5e45834c3b34d6321f70a5267533e632bf8e773a
# Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
# Date:   Fri Feb 19 17:56:48 2021 +0100
# 
#     powerpc/mm: Move the linear_mapping_mutex to the ifdef where it is used
#     
#     The mutex linear_mapping_mutex is defined at the of the file while its
#     only two user are within the CONFIG_MEMORY_HOTPLUG block.
#     A compile without CONFIG_MEMORY_HOTPLUG set fails on PREEMPT_RT because
#     its mutex implementation is smart enough to realize that it is unused.
#     
#     Move the definition of linear_mapping_mutex to ifdef block where it is
#     used.
#     
#     Fixes: 1f73ad3e8d755 ("powerpc/mm: print warning in arch_remove_linear_mapping()")
#     Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20210219165648.2505482-1-bigeasy@linutronix.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 5e45834c3b34d6321f70a5267533e632bf8e773a
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc40x_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc40x_defconfig
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc40x_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/powerpc-next_ppc40x_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/powerpc-next_ppc40x_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x5e2728) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x5e2728) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Image Name:   Linux-5.11.0-g5e45834c3b34
Created:      Tue Feb 23 19:42:43 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2983094 Bytes = 2913.18 KiB = 2.84 MiB
Load Address: 00600000
Entry Point:  006017dc
Image Name:   Linux-5.11.0-g5e45834c3b34
Created:      Tue Feb 23 19:42:43 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2983440 Bytes = 2913.52 KiB = 2.85 MiB
Load Address: 00600000
Entry Point:  00601a18
Completed OK
# rm -rf /kisskb/build/powerpc-next_ppc40x_defconfig_powerpc-gcc5
# Build took: 0:01:06.584052