# git rev-parse -q --verify 315443293a2d0d7c183ca6dd4624d9e4f8a7054a^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-stable.git linux-5.4.y
# git rev-parse -q --verify 315443293a2d0d7c183ca6dd4624d9e4f8a7054a^{commit}
315443293a2d0d7c183ca6dd4624d9e4f8a7054a
# git checkout -q -f -B kisskb 315443293a2d0d7c183ca6dd4624d9e4f8a7054a
# git clean -qxdf
# < git log -1
# commit 315443293a2d0d7c183ca6dd4624d9e4f8a7054a
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Wed Nov 18 19:20:34 2020 +0100
# 
#     Linux 5.4.78
#     
#     Tested-by: Jon Hunter <jonathanh@nvidia.com>
#     Tested-by: Shuah Khan <skhan@linuxfoundation.org>
#     Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
#     Reviewed-by: Guenter Roeck <linux@roeck-us.net>
#     Link: https://lore.kernel.org/r/20201117122121.381905960@linuxfoundation.org
#     Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 315443293a2d0d7c183ca6dd4624d9e4f8a7054a
# < make -s -j 80 ARCH=s390 O=/kisskb/build/stable-5.4_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  defconfig
# < make -s -j 80 ARCH=s390 O=/kisskb/build/stable-5.4_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 80 ARCH=s390 O=/kisskb/build/stable-5.4_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 80 ARCH=s390 O=/kisskb/build/stable-5.4_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  
/kisskb/src/fs/btrfs/tree-checker.c: In function 'check_root_item':
/kisskb/src/fs/btrfs/tree-checker.c:890:9: warning: missing braces around initializer [-Wmissing-braces]
  struct btrfs_root_item ri = { 0 };
         ^
/kisskb/src/fs/btrfs/tree-checker.c:890:9: warning: (near initialization for 'ri.inode') [-Wmissing-braces]
Completed OK
# rm -rf /kisskb/build/stable-5.4_s390-defconfig_s390x-gcc4.9
# Build took: 0:06:35.293286