# git rev-parse -q --verify 0fef459cce6cfb8bb067f519ae8aa8a85b225b25^{commit}
0fef459cce6cfb8bb067f519ae8aa8a85b225b25
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0fef459cce6cfb8bb067f519ae8aa8a85b225b25
# git clean -qxdf
# < git log -1
# commit 0fef459cce6cfb8bb067f519ae8aa8a85b225b25
# Author: Peter Xu <peterx@redhat.com>
# Date:   Thu Jan 31 18:30:22 2019 +0800
# 
#     powerpc/powernv/npu: Remove redundant change_pte() hook
#     
#     The change_pte() notifier was designed to use as a quick path to
#     update secondary MMU PTEs on write permission changes or PFN changes.
#     For KVM, it could reduce the vm-exits when vcpu faults on the pages
#     that was touched up by KSM. It's not used to do cache invalidations,
#     for example, if we see the notifier will be called before the real PTE
#     update after all (please see set_pte_at_notify that set_pte_at was
#     called later).
#     
#     All the necessary cache invalidation should all be done in
#     invalidate_range() already.
#     
#     Signed-off-by: Peter Xu <peterx@redhat.com>
#     Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
#     Reviewed-by: Alistair Popple <alistair@popple.id.au>
#     Reviewed-by: Balbir Singh <bsingharora@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 0fef459cce6cfb8bb067f519ae8aa8a85b225b25
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-next_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-next_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:40: LSE atomics not supported by binutils
/kisskb/src/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts:25.9-29.5: Warning (graph_port): /edp-panel/ports: graph port node name should be 'port'
/kisskb/src/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts:46.9-50.5: Warning (graph_port): /edp-panel/ports: graph port node name should be 'port'
/kisskb/src/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator.dts:94.9-98.5: Warning (graph_port): /edp-panel/ports: graph port node name should be 'port'
In file included from /kisskb/src/include/linux/rwsem.h:16:0,
                 from /kisskb/src/include/linux/notifier.h:15,
                 from /kisskb/src/include/linux/clk.h:17,
                 from /kisskb/src/drivers/tty/serial/sh-sci.c:24:
/kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_submit_rx':
/kisskb/src/include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _raw_spin_unlock_irqrestore(lock, flags); \
   ^
/kisskb/src/drivers/tty/serial/sh-sci.c:1338:16: note: 'flags' was declared here
  unsigned long flags;
                ^
Completed OK
# rm -rf /kisskb/build/powerpc-next_arm64-defconfig_arm64-gcc5.4
# Build took: 0:03:43.433490