# git rev-parse -q --verify 9cefe99349cf0b542c103c61c96e702a56a941da^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test
# git rev-parse -q --verify 9cefe99349cf0b542c103c61c96e702a56a941da^{commit}
9cefe99349cf0b542c103c61c96e702a56a941da
# git checkout -q -f -B kisskb 9cefe99349cf0b542c103c61c96e702a56a941da
# git clean -qxdf
# < git log -1
# commit 9cefe99349cf0b542c103c61c96e702a56a941da
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Fri Dec 3 17:33:25 2021 +1100
# 
#     powerpc: Drop unused CONFIG_PPC_HAS_FEATURE_CALLS
#     
#     Since ~2002 we have had CONFIG_PPC_HAS_FEATURE_CALLS defined as a faux
#     CONFIG symbol, firstly in include/asm-ppc/machdep.h, and then later
#     copied over to powerpc when ppc and ppc64 were merged.
#     
#     The last in-tree usage was removed in 2005 in commit
#     7bbd827750e6 ("[PATCH] ppc64: very basic desktop g5 sound support").
#     
#     I haven't been able to find any meaningful references to it anywhere
#     else, so I suspect it has been unused for many years. It confuses
#     scripts/checkkconfigsymbols.py, and seems to serve no purpose, so drop
#     it.
#     
#     Note that it's not in a uapi header, ie. it could only be used by
#     out-of-tree kernel modules, not general userspace code.
#     
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     ---
#     
#     If anything does use it, just let us know.
# < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-gcc --version
# < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-ld --version
# < git log --format=%s --max-count=1 9cefe99349cf0b542c103c61c96e702a56a941da
# < make -s -j 48 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  mmu_defconfig
# < make -s -j 48 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  help
# make -s -j 48 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  olddefconfig
# make -s -j 48 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  
<stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]
Kernel: arch/microblaze/boot/linux.bin is ready  (#1)
Completed OK
# rm -rf /kisskb/build/powerpc-next_mmu_defconfig_microblaze
# Build took: 0:01:20.092548