# git rev-parse -q --verify 7a9f8064b8cbaa367b4520e839fd6d61be8eaeb3^{commit}
7a9f8064b8cbaa367b4520e839fd6d61be8eaeb3
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7a9f8064b8cbaa367b4520e839fd6d61be8eaeb3
# git clean -qxdf
# < git log -1
# commit 7a9f8064b8cbaa367b4520e839fd6d61be8eaeb3
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Sun Oct 13 21:23:51 2019 +1100
# 
#     powerpc/pseries: Mark accumulate_stolen_time() as notrace
#     
#     accumulate_stolen_time() is called prior to interrupt state being
#     reconciled, which can trip the warning in arch_local_irq_restore():
#     
#       WARNING: CPU: 5 PID: 1017 at arch/powerpc/kernel/irq.c:258 .arch_local_irq_restore+0x9c/0x130
#       ...
#       NIP .arch_local_irq_restore+0x9c/0x130
#       LR  .rb_start_commit+0x38/0x80
#       Call Trace:
#         .ring_buffer_lock_reserve+0xe4/0x620
#         .trace_function+0x44/0x210
#         .function_trace_call+0x148/0x170
#         .ftrace_ops_no_ops+0x180/0x1d0
#         ftrace_call+0x4/0x8
#         .accumulate_stolen_time+0x1c/0xb0
#         decrementer_common+0x124/0x160
#     
#     For now just mark it as notrace. We may change the ordering to call it
#     after interrupt state has been reconciled, but that is a larger
#     change.
#     
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 7a9f8064b8cbaa367b4520e839fd6d61be8eaeb3
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_holly_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  holly_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_holly_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x581210) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Completed OK
# rm -rf /kisskb/build/powerpc-next_holly_defconfig_powerpc-gcc5
# Build took: 0:00:44.908051