tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git swap-dio
head:   a65f2f4fe575e2069276795af46f962dd4559edf
commit: b52bb021e191a322c2ade3a5f83e658932bef2bf [2/9] mm: Add 'supports' field to the address_space_operations to list features
config: s390-allyesconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 11.2.0
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/dhowells/linux-fs.git/commit/?id=b52bb021e191a322c2ade3a5f83e658932bef2bf
        git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
        git fetch --no-tags dhowells-fs swap-dio
        git checkout b52bb021e191a322c2ade3a5f83e658932bef2bf
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> fs/affs/file.c:463:9: error: request for member 'supports' in something not a structure or union
     463 |         .supports       = AS_SUPPORTS_DIRECT_IO,
         |         ^


vim +/supports +463 fs/affs/file.c

   454	
   455	const struct address_space_operations affs_aops = {
   456		.set_page_dirty	= __set_page_dirty_buffers,
   457		.readpage = affs_readpage,
   458		.writepage = affs_writepage,
   459		.write_begin = affs_write_begin,
   460		.write_end = affs_write_end,
   461		.direct_IO = affs_direct_IO,
   462		.bmap = _affs_bmap
 > 463		.supports	= AS_SUPPORTS_DIRECT_IO,
   464	};
   465	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org