# git rev-parse -q --verify 06d5d309a3f17e32cd59926f391db1e1ea652184^{commit}
06d5d309a3f17e32cd59926f391db1e1ea652184
already have revision, skipping fetch
# git checkout -q -f -B kisskb 06d5d309a3f17e32cd59926f391db1e1ea652184
# git clean -qxdf
# < git log -1
# commit 06d5d309a3f17e32cd59926f391db1e1ea652184
# Merge: cd278456d4ca 207da4c82ade
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Feb 28 12:40:35 2021 -0800
# 
#     Merge tag 'kbuild-fixes-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kbuild fixes from Masahiro Yamada:
#     
#      - Fix UNUSED_KSYMS_WHITELIST for Clang LTO
#     
#      - Make -s builds really silent irrespective of V= option
#     
#      - Fix build error when SUBLEVEL or PATCHLEVEL is empty
#     
#     * tag 'kbuild-fixes-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
#       kbuild: Fix <linux/version.h> for empty SUBLEVEL or PATCHLEVEL again
#       kbuild: make -s option take precedence over V=1
#       ia64: remove redundant READELF from arch/ia64/Makefile
#       kbuild: do not include include/config/auto.conf from adjust_autoksyms.sh
#       kbuild: fix UNUSED_KSYMS_WHITELIST for Clang LTO
#       kbuild: lto: add _mcount to list of used symbols
# < /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 06d5d309a3f17e32cd59926f391db1e1ea652184
# < make -s -j 32 ARCH=s390 O=/kisskb/build/linus_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 32 ARCH=s390 O=/kisskb/build/linus_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 32 ARCH=s390 O=/kisskb/build/linus_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 32 ARCH=s390 O=/kisskb/build/linus_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:1071:9: warning: missing braces around initializer [-Wmissing-braces]
  struct btrfs_root_item ri = { 0 };
         ^
/kisskb/src/fs/btrfs/tree-checker.c:1071:9: warning: (near initialization for 'ri.inode') [-Wmissing-braces]
Completed OK
# rm -rf /kisskb/build/linus_s390-defconfig_s390x-gcc4.9
# Build took: 0:04:27.686801