# git rev-parse -q --verify 9f65b81f36e31563c5a5e4df3b3b8bc7550b6030^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/mpe/kisskb master
# git rev-parse -q --verify 9f65b81f36e31563c5a5e4df3b3b8bc7550b6030^{commit}
9f65b81f36e31563c5a5e4df3b3b8bc7550b6030
# git checkout -q -f -B kisskb 9f65b81f36e31563c5a5e4df3b3b8bc7550b6030
# git clean -qxdf
# < git log -1
# commit 9f65b81f36e31563c5a5e4df3b3b8bc7550b6030
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Tue May 1 00:55:57 2018 +1000
# 
#     tty: hvc: introduce the hv_ops.flush operation for hvc drivers
#     
#     Use .flush to wait for drivers to flush their console outside of
#     the spinlock, to reduce lock/irq latencies.
#     
#     Flush the hvc console driver after each write, which can help
#     messages make it out to the console after a crash.
#     
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < git log --format=%s --max-count=1 9f65b81f36e31563c5a5e4df3b3b8bc7550b6030
# < make -s -j 20 ARCH=sparc O=/kisskb/build/mpe_sparc-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
# make -s -j 20 ARCH=sparc O=/kisskb/build/mpe_sparc-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<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/mpe_sparc-defconfig_sparc64
# Build took: 0:00:53.985431