# git rev-parse -q --verify e6cf6872af0a1abf9cc4dfd99883a5839f27f029^{commit}
e6cf6872af0a1abf9cc4dfd99883a5839f27f029
already have revision, skipping fetch
# git checkout -q -f -B kisskb e6cf6872af0a1abf9cc4dfd99883a5839f27f029
# git clean -qxdf
# < git log -1
# commit e6cf6872af0a1abf9cc4dfd99883a5839f27f029
# Author: Michal Suchanek <msuchanek@suse.de>
# Date:   Mon May 28 15:19:14 2018 +0200
# 
#     powerpc/64s: Enhance the information in cpu_show_spectre_v1()
#     
#     We now have barrier_nospec as mitigation so print it in
#     cpu_show_spectre_v1() when enabled.
#     
#     Signed-off-by: Michal Suchanek <msuchanek@suse.de>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-gcc --version
# < git log --format=%s --max-count=1 e6cf6872af0a1abf9cc4dfd99883a5839f27f029
# < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_skiroot_defconfig_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  skiroot_defconfig
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_skiroot_defconfig_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  
WARNING: modpost: Found 3 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
arch/powerpc/kernel/watchdog.o: In function `wd_timer_fn':
watchdog.c:(.text+0xb54): undefined reference to `arch_trigger_cpumask_backtrace'
arch/powerpc/kernel/watchdog.o: In function `soft_nmi_interrupt':
watchdog.c:(.text+0xeac): undefined reference to `arch_trigger_cpumask_backtrace'
kernel/rcu/tree.o: In function `rcu_dump_cpu_stacks':
tree.c:(.text.unlikely+0xdc): undefined reference to `arch_trigger_cpumask_backtrace'
kernel/hung_task.o: In function `watchdog':
hung_task.c:(.text+0x328): undefined reference to `arch_trigger_cpumask_backtrace'
kernel/watchdog.o: In function `watchdog_timer_fn':
watchdog.c:(.text+0x304): undefined reference to `arch_trigger_cpumask_backtrace'
drivers/tty/sysrq.o:sysrq.c:(.text+0x2a4): more undefined references to `arch_trigger_cpumask_backtrace' follow
/kisskb/src/Makefile:1041: recipe for target 'vmlinux' failed
make[1]: *** [vmlinux] Error 1
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_skiroot_defconfig_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next_skiroot_defconfig_ppc64le
# Build took: 0:00:32.094919