# git rev-parse -q --verify 7c98a42618271210c60b79128b220107d35938d9^{commit}
7c98a42618271210c60b79128b220107d35938d9
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7c98a42618271210c60b79128b220107d35938d9
# git clean -qxdf
# < git log -1
# commit 7c98a42618271210c60b79128b220107d35938d9
# Merge: 3381918fec92 7e241f647dc7
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Nov 23 11:24:55 2018 -0800
# 
#     Merge tag 'ceph-for-4.20-rc4' of https://github.com/ceph/ceph-client
#     
#     Pullk ceph fix from Ilya Dryomov:
#      "A messenger fix, marked for stable"
#     
#     * tag 'ceph-for-4.20-rc4' of https://github.com/ceph/ceph-client:
#       libceph: fall back to sendmsg for slab pages
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < git log --format=%s --max-count=1 7c98a42618271210c60b79128b220107d35938d9
# < make -s -j 48 ARCH=xtensa O=/kisskb/build/linus_xtensa-allnoconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  allnoconfig
drivers/staging/mt7621-dts/Kconfig:4:warning: 'BUILTIN_DTB' has wrong type. 'select' only accept arguments of bool and tristate type
# make -s -j 48 ARCH=xtensa O=/kisskb/build/linus_xtensa-allnoconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
Completed OK
# rm -rf /kisskb/build/linus_xtensa-allnoconfig_xtensa
# Build took: 0:00:13.328336