[djwong-xfs:report-refcounts 313/313] ./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:   27a479f2c92652ce57a4d640b19240344404b21d
commit: 27a479f2c92652ce57a4d640b19240344404b21d [313/313] xfs: export reference count information to userspace
config: x86_64-randconfig-a004-20211017 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 8ca4b3ef19fe82d7ad6a6e1515317dcc01b41515)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/commit/?id=27a479f2c92652ce57a4d640b19240344404b21d
        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 27a479f2c92652ce57a4d640b19240344404b21d
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   In file included from <built-in>:1:

quoted

./usr/include/linux/fsrefcounts.h:68:19: error: unknown type name 'size_t'

   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