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 All errors (new ones prefixed by >>): In file included from :1: >> ./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