# git rev-parse -q --verify e963b7a28b2bf2416304e1a15df967fcf662aff5^{commit}
e963b7a28b2bf2416304e1a15df967fcf662aff5
already have revision, skipping fetch
# git checkout -q -f -B kisskb e963b7a28b2bf2416304e1a15df967fcf662aff5
# git clean -qxdf
# < git log -1
# commit e963b7a28b2bf2416304e1a15df967fcf662aff5
# Author: Christophe Leroy <christophe.leroy@csgroup.eu>
# Date:   Sat May 9 09:42:14 2020 +0000
# 
#     powerpc/vdso32: Fallback on getres syscall when clock is unknown
#     
#     There are other clocks than the standard ones, for instance
#     per process clocks. Therefore, being above the last standard clock
#     doesn't mean it is a bad clock. So, fallback to syscall instead
#     of returning -EINVAL inconditionaly.
#     
#     Fixes: e33ffc956b08 ("powerpc/vdso32: implement clock_getres entirely")
#     Cc: stable@vger.kernel.org # v5.6+
#     Reported-by: Aurelien Jarno <aurelien@aurel32.net>
#     Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Tested-by: Aurelien Jarno <aurelien@aurel32.net>
#     Link: https://lore.kernel.org/r/7316a9e2c0c2517923eb4b0411c4a08d15e675a4.1589017281.git.christophe.leroy@csgroup.eu
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 e963b7a28b2bf2416304e1a15df967fcf662aff5
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64_defconfig
# Added to kconfig CONFIG_PPC_RADIX_MMU=n
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-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) {
                      ^
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1652:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
/kisskb/src/fs/btrfs/backref.c: In function 'is_shared_data_backref':
/kisskb/src/fs/btrfs/backref.c:394:9: warning: missing braces around initializer [-Wmissing-braces]
  struct prelim_ref target = {0};
         ^
/kisskb/src/fs/btrfs/backref.c:394:9: warning: (near initialization for 'target.rbnode') [-Wmissing-braces]
arch/powerpc/platforms/pseries/lpar.o:(.toc+0x0): undefined reference to `mmu_pid_bits'
make[1]: *** [/kisskb/src/Makefile:1106: vmlinux] Error 1
make: *** [Makefile:180: sub-make] Error 2
Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-fixes_ppc64_defconfig+NO_RADIX_powerpc-gcc4.9
# Build took: 0:02:48.734091