[kbuild-all] [djwong-xfs:report-refcounts 320/320] ./usr/include/linux/fsrefcounts.h:68:19: error: unknown type name 'size_t'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git report-refcounts head: 2aa262ff63c05223413baf64953c5c1f2ce13d6b commit: 2aa262ff63c05223413baf64953c5c1f2ce13d6b [320/320] xfs: export reference count information to userspace config: x86_64-randconfig-a015-20210613 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/comm... git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git git fetch --no-tags djwong-xfs report-refcounts git checkout 2aa262ff63c05223413baf64953c5c1f2ce13d6b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from <built-in>:1: static __inline__ size_t ^ 1 error generated. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org