tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 4eab358930711bbeb85bf5ee267d0d42d3394c2c commit: 62754e4df9e04c4576e989f5ea2b909e824d8164 [6398/6705] mm/page_table_check: support userfault wr-protect entries config: riscv-randconfig-r001-20230105 (https://download.01.org/0day-ci/archive/20240417/202404171745.Zd13ydca-lkp@xxxxxxxxx/config) compiler: riscv64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240417/202404171745.Zd13ydca-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202404171745.Zd13ydca-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): mm/page_table_check.c: In function 'swap_cached_writable': mm/page_table_check.c:192:24: error: 'SWP_DEVICE_EXCLUSIVE_WRITE' undeclared (first use in this function) 192 | return type == SWP_DEVICE_EXCLUSIVE_WRITE || | ^~~~~~~~~~~~~~~~~~~~~~~~~~ mm/page_table_check.c:192:24: note: each undeclared identifier is reported only once for each function it appears in >> mm/page_table_check.c:194:1: warning: control reaches end of non-void function [-Wreturn-type] 194 | } | ^ vim +194 mm/page_table_check.c 186 187 /* Whether the swap entry cached writable information */ 188 static inline bool swap_cached_writable(swp_entry_t entry) 189 { 190 unsigned type = swp_type(entry); 191 192 return type == SWP_DEVICE_EXCLUSIVE_WRITE || 193 type == SWP_MIGRATION_WRITE; > 194 } 195 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki