# git rev-parse -q --verify 4669e13cd67f8532be12815ed3d37e775a9bdc16^{commit}
4669e13cd67f8532be12815ed3d37e775a9bdc16
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4669e13cd67f8532be12815ed3d37e775a9bdc16
# git clean -qxdf
# < git log -1
# commit 4669e13cd67f8532be12815ed3d37e775a9bdc16
# Merge: 27eb687bcdb9 340e84573878
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Jul 30 11:08:12 2021 -0700
# 
#     Merge tag 'block-5.14-2021-07-30' of git://git.kernel.dk/linux-block
#     
#     Pull block fixes from Jens Axboe:
#     
#      - gendisk freeing fix (Christoph)
#     
#      - blk-iocost wake ordering fix (Tejun)
#     
#      - tag allocation error handling fix (John)
#     
#      - loop locking fix. While this isn't the prettiest fix in the world,
#        nobody has any good alternatives for 5.14. Something to likely
#        revisit for 5.15. (Tetsuo)
#     
#     * tag 'block-5.14-2021-07-30' of git://git.kernel.dk/linux-block:
#       block: delay freeing the gendisk
#       blk-iocost: fix operation ordering in iocg_wake_fn()
#       blk-mq-sched: Fix blk_mq_sched_alloc_tags() error handling
#       loop: reintroduce global lock for safe loop_validate_file() traversal
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 4669e13cd67f8532be12815ed3d37e775a9bdc16
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/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-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
.config:5009:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4
# Build took: 0:01:44.211909