tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: 6e165f54437931f329d09dca6c19d99af08a36e1 commit: 98a9217fdcb8c8a64670a57180fdfc2f468e4ff0 [170/172] mempolicy.h: remove unnecessary header file inclusions config: x86_64-buildonly-randconfig-005-20241207 (https://download.01.org/0day-ci/archive/20241207/202412072238.EJIJEJfz-lkp@xxxxxxxxx/config) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241207/202412072238.EJIJEJfz-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/202412072238.EJIJEJfz-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from mm/z3fold.c:30: In file included from include/linux/mm.h:2287: include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 505 | item]; | ~~~~ include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 512 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 525 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ >> mm/z3fold.c:353:3: error: call to undeclared function 'lock_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 353 | lock_page(page); | ^ mm/z3fold.c:353:3: note: did you mean 'copy_page'? arch/x86/include/asm/page_64.h:62:6: note: 'copy_page' declared here 62 | void copy_page(void *to, void *from); | ^ >> mm/z3fold.c:355:3: error: call to undeclared function 'unlock_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 355 | unlock_page(page); | ^ mm/z3fold.c:1052:3: error: call to undeclared function 'lock_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1052 | lock_page(page); | ^ mm/z3fold.c:1054:3: error: call to undeclared function 'unlock_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1054 | unlock_page(page); | ^ >> mm/z3fold.c:1056:12: error: call to undeclared function 'trylock_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1056 | WARN_ON(!trylock_page(page)); | ^ mm/z3fold.c:1056:12: note: did you mean 'try_get_page'? include/linux/mm.h:1527:33: note: 'try_get_page' declared here 1527 | static inline __must_check bool try_get_page(struct page *page) | ^ mm/z3fold.c:1058:3: error: call to undeclared function 'unlock_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1058 | unlock_page(page); | ^ 4 warnings and 6 errors generated. vim +/lock_page +353 mm/z3fold.c 9a001fc19cccde Vitaly Wool 2016-05-20 348 9a001fc19cccde Vitaly Wool 2016-05-20 349 /* Resets the struct page fields and frees the page */ 1f862989b04ade Vitaly Wool 2019-05-13 350 static void free_z3fold_page(struct page *page, bool headless) 9a001fc19cccde Vitaly Wool 2016-05-20 351 { 1f862989b04ade Vitaly Wool 2019-05-13 352 if (!headless) { 1f862989b04ade Vitaly Wool 2019-05-13 @353 lock_page(page); 1f862989b04ade Vitaly Wool 2019-05-13 354 __ClearPageMovable(page); 1f862989b04ade Vitaly Wool 2019-05-13 @355 unlock_page(page); 1f862989b04ade Vitaly Wool 2019-05-13 356 } 5a27aa8220290b Vitaly Wool 2017-02-24 357 __free_page(page); 5a27aa8220290b Vitaly Wool 2017-02-24 358 } 5a27aa8220290b Vitaly Wool 2017-02-24 359 :::::: The code at line 353 was first introduced by commit :::::: 1f862989b04ade61d3aab49184c50e9957f84c7d mm/z3fold.c: support page migration :::::: TO: Vitaly Wool <vitalywool@xxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
