# git rev-parse -q --verify b5dbcd05792a4bad2c9bb3c4658c854e72c444b7^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-stable.git linux-5.4.y
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify b5dbcd05792a4bad2c9bb3c4658c854e72c444b7^{commit}
b5dbcd05792a4bad2c9bb3c4658c854e72c444b7
# git checkout -q -f -B kisskb b5dbcd05792a4bad2c9bb3c4658c854e72c444b7
# git clean -qxdf
# < git log -1
# commit b5dbcd05792a4bad2c9bb3c4658c854e72c444b7
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Fri May 7 10:51:38 2021 +0200
# 
#     Linux 5.4.117
#     
#     Tested-by: Jon Hunter <jonathanh@nvidia.com>
#     Tested-by: Florian Fainelli <f.fainelli@gmail.com>
#     Tested-by: Shuah Khan <skhan@linuxfoundation.org>
#     Tested-by: Jason Self <jason@bluehome.net>
#     Tested-by: Hulk Robot <hulkrobot@huawei.com>
#     Tested-by: Guenter Roeck <linux@roeck-us.net>
#     Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
#     Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
#     Link: https://lore.kernel.org/r/20210505112324.729798712@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 b5dbcd05792a4bad2c9bb3c4658c854e72c444b7
# < make -s -j 48 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 48 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 48 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 48 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/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]
/kisskb/src/fs/btrfs/tree-checker.c: In function 'check_root_item':
/kisskb/src/fs/btrfs/tree-checker.c:897:9: warning: missing braces around initializer [-Wmissing-braces]
  struct btrfs_root_item ri = { 0 };
         ^
/kisskb/src/fs/btrfs/tree-checker.c:897:9: warning: (near initialization for 'ri.inode') [-Wmissing-braces]
Completed OK
# rm -rf /kisskb/build/stable-5.4_s390-defconfig_s390x-gcc4.9
# Build took: 0:04:07.644843