# git rev-parse -q --verify 6fb9ffb9bf05ec891f8a8de85aa1b606549c57ab^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next
# git rev-parse -q --verify 6fb9ffb9bf05ec891f8a8de85aa1b606549c57ab^{commit}
6fb9ffb9bf05ec891f8a8de85aa1b606549c57ab
# git checkout -q -f -B kisskb 6fb9ffb9bf05ec891f8a8de85aa1b606549c57ab
# git clean -qxdf
# < git log -1
# commit 6fb9ffb9bf05ec891f8a8de85aa1b606549c57ab
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Sat Apr 4 16:20:34 2020 +0900
# 
#     kbuild: remove -I$(srctree)/tools/include from scripts/Makefile
#     
#     I do not like to add an extra include path for every tool with no
#     good reason. This should be specified per file.
#     
#     This line was added by commit 6520fe5564ac ("x86, realmode: 16-bit
#     real-mode code support for relocs tool"), which did not touch
#     anything else in scripts/. I see no reason to add this.
#     
#     Also, remove the comment about kallsyms because we do not have any
#     for the rest of programs.
#     
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.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 6fb9ffb9bf05ec891f8a8de85aa1b606549c57ab
# < make -s -j 48 ARCH=s390 O=/kisskb/build/kbuild_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/kbuild_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/kbuild_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/kbuild_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  
/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]
In file included from /kisskb/src/net/netfilter/nft_set_pipapo.c:342:0:
/kisskb/src/net/netfilter/nft_set_pipapo_avx2.h:4:28: fatal error: asm/fpu/xstate.h: No such file or directory
 #include <asm/fpu/xstate.h>
                            ^
compilation terminated.
make[3]: *** [/kisskb/src/scripts/Makefile.build:266: net/netfilter/nft_set_pipapo.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:488: net/netfilter] Error 2
make[1]: *** [/kisskb/src/Makefile:1705: net] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:180: sub-make] Error 2
Command 'make -s -j 48 ARCH=s390 O=/kisskb/build/kbuild_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/kbuild_s390-defconfig_s390x-gcc4.9
# Build took: 0:03:29.479584