# git rev-parse -q --verify 37e5bf9657c8af85b91dda79c14eee5b7e0406d7^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git fixes-test
# git rev-parse -q --verify 37e5bf9657c8af85b91dda79c14eee5b7e0406d7^{commit}
37e5bf9657c8af85b91dda79c14eee5b7e0406d7
# git checkout -q -f -B kisskb 37e5bf9657c8af85b91dda79c14eee5b7e0406d7
# git clean -qxdf
# < git log -1
# commit 37e5bf9657c8af85b91dda79c14eee5b7e0406d7
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Tue Jan 31 21:59:21 2023 +1100
# 
#     powerpc/64s: Reconnect tlb_flush() to hash__tlb_flush()
#     
#     Commit baf1ed24b27d ("powerpc/mm: Remove empty hash__ functions")
#     removed some empty hash MMU flushing routines, but got a bit overeager
#     and also removed the call to hash__tlb_flush() from tlb_flush().
#     
#     In regular use this doesn't lead to any noticable breakage, which is a
#     little concerning. Presumably there are flushes happening via other
#     paths such as arch_leave_lazy_mmu_mode(), and/or a bit of luck.
#     
#     Fix it by reinstating the call to hash__tlb_flush().
#     
#     Fixes: baf1ed24b27d ("powerpc/mm: Remove empty hash__ functions")
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-ld --version
# < git log --format=%s --max-count=1 37e5bf9657c8af85b91dda79c14eee5b7e0406d7
# < make -s -j 160 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  defconfig
# < make -s -j 160 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  help
# make -s -j 160 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  olddefconfig
# make -s -j 160 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8
# Build took: 0:01:13.938504