# git rev-parse -q --verify 4597fcff07044d89c646d0c5d8b42cd976d966a1^{commit}
4597fcff07044d89c646d0c5d8b42cd976d966a1
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4597fcff07044d89c646d0c5d8b42cd976d966a1
# git clean -qxdf
# < git log -1
# commit 4597fcff07044d89c646d0c5d8b42cd976d966a1
# Merge: a205f0c 48debaf
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Jun 12 18:12:08 2018 -0700
# 
#     Merge tag 'for-4.18/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
#     
#     Pull device mapper updates from Mike Snitzer:
#     
#      - Adjust various DM structure members to improve alignment relative to
#        4.18 block's mempool_t and bioset changes.
#     
#      - Add DM writecache target that offers writeback caching to persistent
#        memory or SSD.
#     
#      - Small DM core error message change to give context for why a DM table
#        type transition wasn't allowed.
#     
#     * tag 'for-4.18/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
#       dm: add writecache target
#       dm: adjust structure members to improve alignment
#       dm: report which conflicting type caused error during table_load()
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < git log --format=%s --max-count=1 4597fcff07044d89c646d0c5d8b42cd976d966a1
# < make -s -j 10 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  defconfig
drivers/staging/mt7621-dts/Kconfig:4:warning: 'BUILTIN_DTB' has wrong type. 'select' only accept arguments of bool and tristate type
# make -s -j 10 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
drivers/staging/mt7621-dts/Kconfig:4:warning: 'BUILTIN_DTB' has wrong type. 'select' only accept arguments of bool and tristate type
CONFIG_CC_STACKPROTECTOR_AUTO: Compiler does not support any known stack-protector
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
Completed OK
# rm -rf /kisskb/build/linus_xtensa-defconfig_xtensa
# Build took: 0:00:30.561220