# git rev-parse -q --verify 410c7c53ac066b38d80d9be7493054734b19244b^{commit}
410c7c53ac066b38d80d9be7493054734b19244b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 410c7c53ac066b38d80d9be7493054734b19244b
# git clean -qxdf
# < git log -1
# commit 410c7c53ac066b38d80d9be7493054734b19244b
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Tue Jun 12 19:38:08 2018 +1000
# 
#     powerpc/64s/radix: Fix radix_kvm_prefetch_workaround paca access of not possible CPU
#     
#     If possible CPUs are limited (e.g., by kexec), then the kvm prefetch
#     workaround function can access the paca pointer for a !possible CPU.
#     
#     Fixes: d2e60075a3d44 ("powerpc/64: Use array of paca pointers and allocate pacas individually")
#     Cc: stable@kernel.org
#     Reported-by: Pridhiviraj Paidipeddi <ppaidipe@linux.vnet.ibm.com>
#     Tested-by: Pridhiviraj Paidipeddi <ppaidipe@linux.vnet.ibm.com>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     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 410c7c53ac066b38d80d9be7493054734b19244b
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  powernv_defconfig
# Added to kconfig CONFIG_PERF_EVENTS=n
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
WARNING: modpost: Found 2 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
Completed OK
# rm -rf /kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_ppc64le
# Build took: 0:02:31.093039