# git rev-parse -q --verify a0513756d815971391e8d20fcfd01434f0668731^{commit}
a0513756d815971391e8d20fcfd01434f0668731
already have revision, skipping fetch
# git checkout -q -f -B kisskb a0513756d815971391e8d20fcfd01434f0668731
# git clean -qxdf
# < git log -1
# commit a0513756d815971391e8d20fcfd01434f0668731
# Author: Andrew Donnellan <ajd@linux.ibm.com>
# Date:   Fri May 3 17:52:53 2019 +1000
# 
#     powerpc/powernv: Restrict OPAL symbol map to only be readable by root
#     
#     Currently the OPAL symbol map is globally readable, which seems bad as
#     it contains physical addresses.
#     
#     Restrict it to root.
#     
#     Fixes: c8742f85125d ("powerpc/powernv: Expose OPAL firmware symbol map")
#     Cc: stable@vger.kernel.org # v3.19+
#     Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
#     Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20190503075253.22798-1-ajd@linux.ibm.com
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 a0513756d815971391e8d20fcfd01434f0668731
# < make -s -j 80 ARCH=sparc64 O=/kisskb/build/powerpc-next_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
# make -s -j 80 ARCH=sparc64 O=/kisskb/build/powerpc-next_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/powerpc-next_sparc64-defconfig_sparc64
# Build took: 0:01:13.522399