# git rev-parse -q --verify 3909c5f6d66dd7a56899e1c7a0a65284a0d3423f^{commit}
3909c5f6d66dd7a56899e1c7a0a65284a0d3423f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3909c5f6d66dd7a56899e1c7a0a65284a0d3423f
# git clean -qxdf
# < git log -1
# commit 3909c5f6d66dd7a56899e1c7a0a65284a0d3423f
# Author: Ram Pai <linuxram@us.ibm.com>
# Date:   Tue Mar 27 02:09:28 2018 -0700
# 
#     mm, x86, powerpc: display pkey in smaps only if arch supports pkeys
#     
#     Currently the  architecture  specific code is expected to
#     display  the  protection  keys  in  smap  for a given vma.
#     This can lead to redundant code and possibly to divergent
#     formats in which the key gets displayed.
#     
#     This  patch  changes  the implementation. It displays the
#     pkey only if the architecture support pkeys, i.e
#     arch_pkeys_enabled() returns true.  This patch
#     provides x86 implementation for arch_pkeys_enabled().
#     
#     x86 arch_show_smap() function is not needed anymore.
#     Deleting it.
#     
#     cc: Michael Ellermen <mpe@ellerman.id.au>
#     cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
#     cc: Andrew Morton <akpm@linux-foundation.org>
#     Reviewed-by: Dave Hansen <dave.hansen@intel.com>
#     Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
#     (fixed compilation errors for x86 configs)
#     Acked-by: Michal Hocko <mhocko@suse.com>
#     Reviewed-by: Ingo Molnar <mingo@kernel.org>
#     Signed-off-by: Ram Pai <linuxram@us.ibm.com>
#     [mpe: Don't remove include of asm/mmu_context.h from pkeys.h, to avoid
#           build errors on some configs.]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < git log --format=%s --max-count=1 3909c5f6d66dd7a56899e1c7a0a65284a0d3423f
# < make -s -j 120 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 120 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-  
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
  kernel: arch/sparc/boot/image is ready
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/powerpc-next_sparc64-defconfig_sparc64
# Build took: 0:00:43.060062