# 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/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-ld --version
# < git log --format=%s --max-count=1 0fef459cce6cfb8bb067f519ae8aa8a85b225b25
# < make -s -j 80 ARCH=i386 O=/kisskb/build/powerpc-next_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  i386_defconfig
# make -s -j 80 ARCH=i386 O=/kisskb/build/powerpc-next_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  
You are building kernel with non-retpoline compiler.
Please update your compiler.
make[1]: *** [arch/x86/Makefile:300: checkbin] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:152: sub-make] Error 2
Command 'make -s -j 80 ARCH=i386 O=/kisskb/build/powerpc-next_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next_i386_defconfig_i386
# Build took: 0:00:05.145936