Hi Kefeng, 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/Kefeng-Wang/mm-memory_hotplug-check-hwpoisoned-page-firstly-in-do_migrate_range/20240425-164317 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240425084028.3888403-2-wangkefeng.wang%40huawei.com patch subject: [PATCH v2 01/10] mm: memory_hotplug: check hwpoisoned page firstly in do_migrate_range() config: arm64-defconfig (https://download.01.org/0day-ci/archive/20240427/202404271110.2fxPtHNB-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240427/202404271110.2fxPtHNB-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/202404271110.2fxPtHNB-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): mm/memory_hotplug.c: In function 'isolate_and_unmap_hwposion_folio': mm/memory_hotplug.c:1786:27: error: implicit declaration of function 'hugetlb_page_mapping_lock_write'; did you mean 'hugetlb_folio_mapping_lock_write'? [-Werror=implicit-function-declaration] 1786 | mapping = hugetlb_page_mapping_lock_write(&folio->page); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | hugetlb_folio_mapping_lock_write >> mm/memory_hotplug.c:1786:25: warning: assignment to 'struct address_space *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 1786 | mapping = hugetlb_page_mapping_lock_write(&folio->page); | ^ cc1: some warnings being treated as errors vim +1786 mm/memory_hotplug.c 1774 1775 static bool isolate_and_unmap_hwposion_folio(struct folio *folio) 1776 { 1777 if (WARN_ON(folio_test_lru(folio))) 1778 folio_isolate_lru(folio); 1779 1780 if (!folio_mapped(folio)) 1781 return true; 1782 1783 if (folio_test_hugetlb(folio) && !folio_test_anon(folio)) { 1784 struct address_space *mapping; 1785 > 1786 mapping = hugetlb_page_mapping_lock_write(&folio->page); 1787 if (mapping) { 1788 /* 1789 * In shared mappings, try_to_unmap could potentially 1790 * call huge_pmd_unshare. Because of this, take 1791 * semaphore in write mode here and set TTU_RMAP_LOCKED 1792 * to let lower levels know we have taken the lock. 1793 */ 1794 try_to_unmap(folio, TTU_IGNORE_MLOCK | TTU_RMAP_LOCKED); 1795 i_mmap_unlock_write(mapping); 1796 } 1797 } else { 1798 try_to_unmap(folio, TTU_IGNORE_MLOCK); 1799 } 1800 1801 return folio_mapped(folio); 1802 } 1803 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
