# git rev-parse -q --verify 2205457db4855a3984b477c3e5daba2feff02cbc^{commit}
2205457db4855a3984b477c3e5daba2feff02cbc
already have revision, skipping fetch
# git checkout -q -f -B kisskb 2205457db4855a3984b477c3e5daba2feff02cbc
# git clean -qxdf
# < git log -1
# commit 2205457db4855a3984b477c3e5daba2feff02cbc
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Thu Aug 24 22:28:49 2023 +1000
# 
#     powerpc/mm: Allow ARCH_FORCE_MAX_ORDER up to 12
#     
#     Christophe reported that the change to ARCH_FORCE_MAX_ORDER to limit the
#     range to 10 had broken his ability to configure hugepages:
#     
#       # echo 1 > /sys/kernel/mm/hugepages/hugepages-8192kB/nr_hugepages
#       sh: write error: Invalid argument
#     
#     Several of the powerpc defconfigs previously set the
#     ARCH_FORCE_MAX_ORDER value to 12, via the definition in
#     arch/powerpc/configs/fsl-emb-nonhw.config, used by:
#     
#       mpc85xx_defconfig
#       mpc85xx_smp_defconfig
#       corenet32_smp_defconfig
#       corenet64_smp_defconfig
#       mpc86xx_defconfig
#       mpc86xx_smp_defconfig
#     
#     Fix it by increasing the allowed range to 12 to restore the previous
#     behaviour.
#     
#     Fixes: 358e526a1648 ("powerpc/mm: Reinstate ARCH_FORCE_MAX_ORDER ranges")
#     Reported-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://msgid.link/id:8011d806-5b30-bf26-2bfe-a08c39d57e20@csgroup.eu
#     Link: https://msgid.link/20230824122849.942072-1-mpe@ellerman.id.au
# < /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 2205457db4855a3984b477c3e5daba2feff02cbc
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_makalu_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  40x/makalu_defconfig
# < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_makalu_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_makalu_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_makalu_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_40x_makalu_defconfig_powerpc-gcc5
# Build took: 0:00:31.420263