# git rev-parse -q --verify c9194f32bfd932e976a158d1af97a63be68a2aab^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify c9194f32bfd932e976a158d1af97a63be68a2aab^{commit}
c9194f32bfd932e976a158d1af97a63be68a2aab
# git checkout -q -f -B kisskb c9194f32bfd932e976a158d1af97a63be68a2aab
# git clean -qxdf
# < git log -1
# commit c9194f32bfd932e976a158d1af97a63be68a2aab
# Merge: 2c4b1ec683f2 877ba3f729fd
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Aug 6 12:55:07 2021 -0700
# 
#     Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
#     
#     Pull ext4 fixes from Ted Ts'o:
#      "A regression fix, bug fix, and a comment cleanup for ext4"
#     
#     * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
#       ext4: fix potential htree corruption when growing large_dir directories
#       ext4: remove conflicting comment from __ext4_forget
#       ext4: fix potential uninitialized access to retval in kmmpd
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 c9194f32bfd932e976a158d1af97a63be68a2aab
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  randconfig
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
.config:5304:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8
# Build took: 0:02:42.456048