# git rev-parse -q --verify c2101d01826480755f2bd9f3dd5e36757be61e23^{commit}
c2101d01826480755f2bd9f3dd5e36757be61e23
already have revision, skipping fetch
# git checkout -q -f -B kisskb c2101d01826480755f2bd9f3dd5e36757be61e23
# git clean -qxdf
# < git log -1
# commit c2101d01826480755f2bd9f3dd5e36757be61e23
# Merge: 6ef746769ef5 6a9b593d4b6f
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Oct 30 09:15:31 2018 -0700
# 
#     Merge tag 'acpi-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
#     
#     Pull more ACPI updates from Rafael Wysocki:
#      "Rework the handling of the P-unit semaphore on Intel Baytrail and
#       Cherrytrail systems to avoid race conditions and excessive overhead
#       related to it (Hans de Goede)"
#     
#     * tag 'acpi-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
#       ACPI / PMIC: xpower: Add depends on IOSF_MBI to Kconfig entry
#       i2c: designware: Cleanup bus lock handling
#       ACPI / PMIC: xpower: Block P-Unit I2C access during read-modify-write
#       x86: baytrail/cherrytrail: Rework and move P-Unit PMIC bus semaphore code
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < git log --format=%s --max-count=1 c2101d01826480755f2bd9f3dd5e36757be61e23
# < make -s -j 80 ARCH=sparc O=/kisskb/build/linus_sparc-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
# make -s -j 80 ARCH=sparc O=/kisskb/build/linus_sparc-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_sparc-defconfig_sparc64
# Build took: 0:00:42.904944