[kbuild-all] [hnaz-mm:master 185/280] mm/swap.c:637:9: error: implicit declaration of function 'mlock_page_drain'

tree: https://github.com/hnaz/linux-mm master head: f3077ea7c68baf736944f1ebf7d8bae1668a9e51 commit: 4b3b8bd6c8287d44703aaaeeba94a500821703c9 [185/280] mm/munlock: mlock_page() munlock_page() batch by pagevec config: h8300-allnoconfig (https://download.01.org/0day-ci/archive/20220212/202202120048.jS44WAmd-lk...) compiler: h8300-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://github.com/hnaz/linux-mm/commit/4b3b8bd6c8287d44703aaaeeba94a5008... git remote add hnaz-mm https://github.com/hnaz/linux-mm git fetch --no-tags hnaz-mm master git checkout 4b3b8bd6c8287d44703aaaeeba94a500821703c9 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=h8300 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): mm/swap.c: In function 'lru_add_drain_cpu': 637 | mlock_page_drain(cpu); | ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/mlock_page_drain +637 mm/swap.c 600 601 /* 602 * Drain pages out of the cpu's pagevecs. 603 * Either "cpu" is the current CPU, and preemption has already been 604 * disabled; or "cpu" is being hot-unplugged, and is already dead. 605 */ 606 void lru_add_drain_cpu(int cpu) 607 { 608 struct pagevec *pvec = &per_cpu(lru_pvecs.lru_add, cpu); 609 610 if (pagevec_count(pvec)) 611 __pagevec_lru_add(pvec); 612 613 pvec = &per_cpu(lru_rotate.pvec, cpu); 614 /* Disabling interrupts below acts as a compiler barrier. */ 615 if (data_race(pagevec_count(pvec))) { 616 unsigned long flags; 617 618 /* No harm done if a racing interrupt already did this */ 619 local_lock_irqsave(&lru_rotate.lock, flags); 620 pagevec_lru_move_fn(pvec, pagevec_move_tail_fn); 621 local_unlock_irqrestore(&lru_rotate.lock, flags); 622 } 623 624 pvec = &per_cpu(lru_pvecs.lru_deactivate_file, cpu); 625 if (pagevec_count(pvec)) 626 pagevec_lru_move_fn(pvec, lru_deactivate_file_fn); 627 628 pvec = &per_cpu(lru_pvecs.lru_deactivate, cpu); 629 if (pagevec_count(pvec)) 630 pagevec_lru_move_fn(pvec, lru_deactivate_fn); 631 632 pvec = &per_cpu(lru_pvecs.lru_lazyfree, cpu); 633 if (pagevec_count(pvec)) 634 pagevec_lru_move_fn(pvec, lru_lazyfree_fn); 635 636 activate_page_drain(cpu); 638 } 639 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org