Hi Junjie, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on brauner-vfs/vfs.all linus/master v6.13-rc2 next-20241211] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Junjie-Fu/mempolicy-h-Remove-unnecessary-header-file-inclusions-with-no-test-failure/20241211-120550 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/tencent_C12D22B8989E0314FDE7073D6446186E3C09%40qq.com patch subject: [PATCH RESEND] mempolicy.h: Remove unnecessary header file inclusions with no test failure config: i386-buildonly-randconfig-003-20241211 (https://download.01.org/0day-ci/archive/20241212/202412120124.VtMN4Kk6-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/20241212/202412120124.VtMN4Kk6-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/202412120124.VtMN4Kk6-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: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_" | ~~~~~~~~~~~ ^ ~~~ >> 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_32.h:25:20: note: 'copy_page' declared here 25 | static inline 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); | ^ 1 warning and 6 errors generated. vim +/lock_page +353 mm/z3fold.c 9a001fc19cccdeb Vitaly Wool 2016-05-20 348 9a001fc19cccdeb Vitaly Wool 2016-05-20 349 /* Resets the struct page fields and frees the page */ 1f862989b04ade6 Vitaly Wool 2019-05-13 350 static void free_z3fold_page(struct page *page, bool headless) 9a001fc19cccdeb Vitaly Wool 2016-05-20 351 { 1f862989b04ade6 Vitaly Wool 2019-05-13 352 if (!headless) { 1f862989b04ade6 Vitaly Wool 2019-05-13 @353 lock_page(page); 1f862989b04ade6 Vitaly Wool 2019-05-13 354 __ClearPageMovable(page); 1f862989b04ade6 Vitaly Wool 2019-05-13 @355 unlock_page(page); 1f862989b04ade6 Vitaly Wool 2019-05-13 356 } 5a27aa8220290b6 Vitaly Wool 2017-02-24 357 __free_page(page); 5a27aa8220290b6 Vitaly Wool 2017-02-24 358 } 5a27aa8220290b6 Vitaly Wool 2017-02-24 359 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
