# git rev-parse -q --verify a075f23dd4b036ebaf918b3af477aa1f249ddfa0^{commit}
a075f23dd4b036ebaf918b3af477aa1f249ddfa0
already have revision, skipping fetch
# git checkout -q -f -B kisskb a075f23dd4b036ebaf918b3af477aa1f249ddfa0
# git clean -qxdf
# < git log -1
# commit a075f23dd4b036ebaf918b3af477aa1f249ddfa0
# Merge: 93d1a05ea6b2 4cea9037f82a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Jan 25 10:55:24 2020 -0800
# 
#     Merge tag 'for-5.5-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fix from David Sterba:
#      "Here's a last minute fix for a regression introduced in this
#       development cycle.
#     
#       There's a small chance of a silent corruption when device replace and
#       NOCOW data writes happen at the same time in one block group. Metadata
#       or COW data writes are unaffected.
#     
#       The extra fixup patch is there to silence an unnecessary warning"
#     
#     * tag 'for-5.5-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: dev-replace: remove warning for unknown return codes when finished
#       btrfs: scrub: Require mandatory block group RO for dev-replace
# < /opt/cross/kisskb/or1k-linux-5.4.0-20170218/or1k-linux/bin/or1k-linux-gcc --version
# < /opt/cross/kisskb/or1k-linux-5.4.0-20170218/or1k-linux/bin/or1k-linux-ld --version
# < git log --format=%s --max-count=1 a075f23dd4b036ebaf918b3af477aa1f249ddfa0
# < make -s -j 24 ARCH=openrisc O=/kisskb/build/linus_or1ksim_defconfig_or32 CROSS_COMPILE=/opt/cross/kisskb/or1k-linux-5.4.0-20170218/or1k-linux/bin/or1k-linux-  or1ksim_defconfig
# make -s -j 24 ARCH=openrisc O=/kisskb/build/linus_or1ksim_defconfig_or32 CROSS_COMPILE=/opt/cross/kisskb/or1k-linux-5.4.0-20170218/or1k-linux/bin/or1k-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
Completed OK
# rm -rf /kisskb/build/linus_or1ksim_defconfig_or32
# Build took: 0:00:32.136977