tree: https://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git mount_setattr head: 604fb5cc1864b64fb74c76679f3d099552210cfd commit: ae04f172df5d207dbf185c2ae5c293306ca6a143 [3/4] fs: add mount_setattr() config: x86_64-randconfig-s021-20200714 (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-41-g14e84ffc-dirty git checkout ae04f172df5d207dbf185c2ae5c293306ca6a143 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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 <command-line>:32: 124 | __u64 attr_set; | ^~~~~ ./usr/include/linux/mount.h:125:2: error: unknown type name '__u64' 125 | __u64 attr_clr; | ^~~~~ 126 | __u32 propagation; | ^~~~~ ./usr/include/linux/mount.h:127:2: error: unknown type name '__u32' 127 | __u32 atime; | ^~~~~ --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org