Hi Zhiguo, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Zhiguo-Jiang/mm-move-task_is_dying-to-h-headfile/20240730-215136 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240730114426.511-3-justinjiang%40vivo.com patch subject: [PATCH 2/2] mm: tlb: add tlb swap entries batch async release config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20240731/202407311947.VPJNRqad-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240731/202407311947.VPJNRqad-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/202407311947.VPJNRqad-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from arch/s390/include/asm/tlb.h:39, from mm/oom_kill.c:49: >> include/asm-generic/tlb.h:327:6: warning: no previous prototype for '__tlb_remove_swap_entries' [-Wmissing-prototypes] 327 | bool __tlb_remove_swap_entries(struct mmu_gather *tlb, | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +/__tlb_remove_swap_entries +327 include/asm-generic/tlb.h 323 324 extern bool __tlb_remove_swap_entries(struct mmu_gather *tlb, 325 swp_entry_t entry, int nr); 326 #else > 327 bool __tlb_remove_swap_entries(struct mmu_gather *tlb, 328 swp_entry_t entry, int nr) 329 { 330 return false; 331 } 332 #endif 333 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
