# git rev-parse -q --verify ae6088216ce4b99b3a4aaaccd2eb2dd40d473d42^{commit}
ae6088216ce4b99b3a4aaaccd2eb2dd40d473d42
already have revision, skipping fetch
# git checkout -q -f -B kisskb ae6088216ce4b99b3a4aaaccd2eb2dd40d473d42
# git clean -qxdf
# < git log -1
# commit ae6088216ce4b99b3a4aaaccd2eb2dd40d473d42
# Merge: 7ae564122f75 72879ee0c53e
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jan 6 15:38:38 2020 -0800
# 
#     Merge tag 'trace-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
#     
#     Pull tracing fixes from Steven Rostedt:
#      "Various tracing fixes:
#     
#        - kbuild found missing define of MCOUNT_INSN_SIZE for various build
#          configs
#     
#        - Initialize variable to zero as gcc thinks it is used undefined (it
#          really isn't but the code is subtle enough that this doesn't hurt)
#     
#        - Convert from do_div() to div64_ull() to prevent potential divide by
#          zero
#     
#        - Unregister a trace point on error path in sched_wakeup tracer
#     
#        - Use signed offset for archs that can have stext not be first
#     
#        - A simple indentation fix (whitespace error)"
#     
#     * tag 'trace-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
#       tracing: Fix indentation issue
#       kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail
#       tracing: Change offset type to s32 in preempt/irq tracepoints
#       ftrace: Avoid potential division by zero in function profiler
#       tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined
#       tracing: Define MCOUNT_INSN_SIZE when not defined without direct calls
#       tracing: Initialize val to zero in parse_entry of inject code
# < /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 ae6088216ce4b99b3a4aaaccd2eb2dd40d473d42
# < 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
# 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-  
Completed OK
# rm -rf /kisskb/build/linus_xtensa-defconfig_xtensa
# Build took: 0:00:58.656654