# git rev-parse -q --verify 3bbeabcd1685878d658e8d126371628052e2bfeb^{commit}
3bbeabcd1685878d658e8d126371628052e2bfeb
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3bbeabcd1685878d658e8d126371628052e2bfeb
# git clean -qxdf
# < git log -1
# commit 3bbeabcd1685878d658e8d126371628052e2bfeb
# Author: Nathan Chancellor <natechancellor@gmail.com>
# Date:   Mon May 18 11:10:43 2020 -0700
# 
#     input: i8042 - Remove special PowerPC handling
#     
#     This causes a build error with CONFIG_WALNUT because kb_cs and kb_data
#     were removed in commit 917f0af9e5a9 ("powerpc: Remove arch/ppc and
#     include/asm-ppc").
#     
#     ld.lld: error: undefined symbol: kb_cs
#     > referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
#     > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
#     > referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
#     > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
#     > referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
#     > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
#     
#     ld.lld: error: undefined symbol: kb_data
#     > referenced by i8042.c:309 (drivers/input/serio/i8042.c:309)
#     > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
#     > referenced by i8042-ppcio.h:33 (drivers/input/serio/i8042-ppcio.h:33)
#     > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
#     > referenced by i8042.c:319 (drivers/input/serio/i8042.c:319)
#     > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
#     > referenced 15 more times
#     
#     Presumably since nobody has noticed this for the last 12 years, there is
#     not anyone actually trying to use this driver so we can just remove this
#     special walnut code and use the generic header so it builds for all
#     configurations.
#     
#     Fixes: 917f0af9e5a9 ("powerpc: Remove arch/ppc and include/asm-ppc")
#     Reported-by: kbuild test robot <lkp@intel.com>
#     Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
#     Link: https://lore.kernel.org/r/20200518181043.3363953-1-natechancellor@gmail.com
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 3bbeabcd1685878d658e8d126371628052e2bfeb
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
# Added to kconfig CONFIG_NUMA=n
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/kernel/trace/ftrace.c: In function 'pid_open':
/kisskb/src/kernel/trace/ftrace.c:7166:6: warning: 'seq_ops' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ret = seq_open(file, seq_ops);
      ^
/kisskb/src/kernel/trace/ftrace.c: In function 'pid_write':
/kisskb/src/kernel/trace/ftrace.c:7244:8: warning: 'filtered_pids' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ret = trace_pid_write(filtered_pids, &pid_list, ubuf, cnt);
        ^
/kisskb/src/kernel/trace/ftrace.c:7261:22: warning: 'other_pids' may be used uninitialized in this function [-Wmaybe-uninitialized]
  } else if (pid_list && !other_pids) {
                      ^
Completed OK
# rm -rf /kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_powerpc-gcc5
# Build took: 0:03:28.396211