# git rev-parse -q --verify cb4723c2aac5ee2d5f41d81f4e6f19aaa19b278f^{commit}
cb4723c2aac5ee2d5f41d81f4e6f19aaa19b278f
already have revision, skipping fetch
# git checkout -q -f -B kisskb cb4723c2aac5ee2d5f41d81f4e6f19aaa19b278f
# git clean -qxdf
# < git log -1
# commit cb4723c2aac5ee2d5f41d81f4e6f19aaa19b278f
# Author: Christoph Hellwig <hch@lst.de>
# Date:   Tue Jun 25 16:52:39 2019 +0200
# 
#     powerpc/powernv: remove the unused vas_win_paste_addr and vas_win_id functions
#     
#     These two function have never been used anywhere in the kernel tree
#     since they were added to the kernel.
#     
#     Signed-off-by: Christoph Hellwig <hch@lst.de>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 cb4723c2aac5ee2d5f41d81f4e6f19aaa19b278f
# < make -s -j 48 ARCH=s390 O=/kisskb/build/powerpc-next_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  defconfig
# make -s -j 48 ARCH=s390 O=/kisskb/build/powerpc-next_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  
arch/s390/../../virt/kvm/kvm_main.o: In function `kvm_vcpu_unmap':
/kisskb/src/arch/s390/kvm/../../../virt/kvm/kvm_main.c:1799: undefined reference to `memunmap'
make[1]: *** [/kisskb/src/Makefile:1052: vmlinux] Error 1
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 48 ARCH=s390 O=/kisskb/build/powerpc-next_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next_s390-defconfig_s390x-gcc8
# Build took: 0:01:41.493304