# git rev-parse -q --verify 5092adb2272e1760030a889aa4a3e9cf1d5f74b5^{commit}
5092adb2272e1760030a889aa4a3e9cf1d5f74b5
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5092adb2272e1760030a889aa4a3e9cf1d5f74b5
# git clean -qxdf
# < git log -1
# commit 5092adb2272e1760030a889aa4a3e9cf1d5f74b5
# Merge: e572fa0e8401 3cf85f9f6bd7
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Dec 21 11:15:36 2018 -0800
# 
#     Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
#     
#     Pull kvm fix from Paolo Bonzini:
#      "A simple patch for a pretty bad bug: Unbreak AMD nested
#       virtualization."
#     
#     * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
#       KVM: x86: nSVM: fix switch to guest mmu
# < /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 5092adb2272e1760030a889aa4a3e9cf1d5f74b5
# < make -s -j 120 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 120 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: 0:00:10.334399