# git rev-parse -q --verify 1bdbe227492075d058e37cb3d400e6468d0095b5^{commit}
1bdbe227492075d058e37cb3d400e6468d0095b5
already have revision, skipping fetch
# git checkout -q -f -B kisskb 1bdbe227492075d058e37cb3d400e6468d0095b5
# git clean -qxdf
# < git log -1
# commit 1bdbe227492075d058e37cb3d400e6468d0095b5
# Merge: f0ebbe9b18e0 58fec830fc19
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Jan 10 09:20:46 2019 -0800
# 
#     Merge tag 'vfio-v5.0-rc2' of git://github.com/awilliam/linux-vfio
#     
#     Pull VFIO fixes from Alex Williamson:
#     
#      - Fix trace header include path for in-tree builds (Masahiro Yamada)
#     
#      - Fix overflow in unmap wrap-around test (Alex Williamson)
#     
#     * tag 'vfio-v5.0-rc2' of git://github.com/awilliam/linux-vfio:
#       vfio/type1: Fix unmap overflow off-by-one
#       vfio/pci: set TRACE_INCLUDE_PATH to fix the build error
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-ld --version
# < git log --format=%s --max-count=1 1bdbe227492075d058e37cb3d400e6468d0095b5
# < make -s -j 8 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 8 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
<stdin>:1333:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1336:2: warning: #warning syscall rseq not implemented [-Wcpp]
Completed OK
# rm -rf /kisskb/build/linus_xtensa-defconfig_xtensa
# Build took: 0:00:45.025353