# git rev-parse -q --verify 1ff5c8e8c835e8a81c0868e3050c76563dd56a2c^{commit}
1ff5c8e8c835e8a81c0868e3050c76563dd56a2c
already have revision, skipping fetch
# git checkout -q -f -B kisskb 1ff5c8e8c835e8a81c0868e3050c76563dd56a2c
# git clean -qxdf
# < git log -1
# commit 1ff5c8e8c835e8a81c0868e3050c76563dd56a2c
# Author: Kefeng Wang <wangkefeng.wang@huawei.com>
# Date:   Thu Apr 7 00:57:58 2022 +1000
# 
#     Revert "powerpc: Set max_mapnr correctly"
#     
#     This reverts commit 602946ec2f90d5bd965857753880db29d2d9a1e9.
#     
#     If CONFIG_HIGHMEM is enabled, no highmem will be added with max_mapnr
#     set to max_low_pfn, see mem_init():
#     
#       for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) {
#             ...
#             free_highmem_page();
#       }
#     
#     Now that virt_addr_valid() has been fixed in the previous commit, we can
#     revert the change to max_mapnr.
#     
#     Fixes: 602946ec2f90 ("powerpc: Set max_mapnr correctly")
#     Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
#     Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Reported-by: Erhard F. <erhard_f@mailbox.org>
#     [mpe: Update change log to reflect series reordering]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20220406145802.538416-2-mpe@ellerman.id.au
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 1ff5c8e8c835e8a81c0868e3050c76563dd56a2c
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_SPLPAR_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_defconfig
# Added to kconfig CONFIG_PPC_SPLPAR=n
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_SPLPAR_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_SPLPAR_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_SPLPAR_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_pseries_defconfig+NO_SPLPAR_powerpc-gcc9
# Build took: 0:04:08.070595