Hi Wupeng, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Wupeng-Ma/mm-memory-failure-update-ttu-flag-inside-unmap_poisoned_folio/20250116-142614 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20250116061657.227027-2-mawupeng1%40huawei.com patch subject: [PATCH v2 1/3] mm: memory-failure: update ttu flag inside unmap_poisoned_folio config: s390-randconfig-001-20250117 (https://download.01.org/0day-ci/archive/20250117/202501171300.SYkofFQ6-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250117/202501171300.SYkofFQ6-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/202501171300.SYkofFQ6-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): In file included from mm/page_isolation.c:13: >> mm/internal.h:1142:1: error: expected identifier or '(' before '{' token 1142 | { | ^ >> mm/internal.h:1141:19: warning: 'unmap_poisoned_folio' declared 'static' but never defined [-Wunused-function] 1141 | static inline int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill); | ^~~~~~~~~~~~~~~~~~~~ -- In file included from mm/damon/paddr.c:19: >> mm/damon/../internal.h:1142:1: error: expected identifier or '(' before '{' token 1142 | { | ^ >> mm/damon/../internal.h:1141:19: warning: 'unmap_poisoned_folio' declared 'static' but never defined [-Wunused-function] 1141 | static inline int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill); | ^~~~~~~~~~~~~~~~~~~~ vim +1142 mm/internal.h 31d3d3484f9bd2 Wu Fengguang 2009-12-16 1121 7c116f2b0dbac4 Wu Fengguang 2009-12-16 1122 extern u32 hwpoison_filter_dev_major; 7c116f2b0dbac4 Wu Fengguang 2009-12-16 1123 extern u32 hwpoison_filter_dev_minor; 478c5ffc0b5052 Wu Fengguang 2009-12-16 1124 extern u64 hwpoison_filter_flags_mask; 478c5ffc0b5052 Wu Fengguang 2009-12-16 1125 extern u64 hwpoison_filter_flags_value; 4fd466eb46a6a9 Andi Kleen 2009-12-16 1126 extern u64 hwpoison_filter_memcg; 1bfe5febe34d2b Haicheng Li 2009-12-16 1127 extern u32 hwpoison_filter_enable; 3a78f77fd1fb82 Miaohe Lin 2024-06-12 1128 #define MAGIC_HWPOISON 0x48575053U /* HWPS */ 3a78f77fd1fb82 Miaohe Lin 2024-06-12 1129 void SetPageHWPoisonTakenOff(struct page *page); 3a78f77fd1fb82 Miaohe Lin 2024-06-12 1130 void ClearPageHWPoisonTakenOff(struct page *page); 3a78f77fd1fb82 Miaohe Lin 2024-06-12 1131 bool take_page_off_buddy(struct page *page); 3a78f77fd1fb82 Miaohe Lin 2024-06-12 1132 bool put_page_back_buddy(struct page *page); 3a78f77fd1fb82 Miaohe Lin 2024-06-12 1133 struct task_struct *task_early_kill(struct task_struct *tsk, int force_early); 68158bfa3dbd4a Matthew Wilcox (Oracle 2024-10-05 1134) void add_to_kill_ksm(struct task_struct *tsk, const struct page *p, 3a78f77fd1fb82 Miaohe Lin 2024-06-12 1135 struct vm_area_struct *vma, struct list_head *to_kill, 3a78f77fd1fb82 Miaohe Lin 2024-06-12 1136 unsigned long ksm_addr); 68158bfa3dbd4a Matthew Wilcox (Oracle 2024-10-05 1137) unsigned long page_mapped_in_vma(const struct page *page, 68158bfa3dbd4a Matthew Wilcox (Oracle 2024-10-05 1138) struct vm_area_struct *vma); eb36c5873b96e8 Al Viro 2012-05-30 1139 16038c4fffd802 Kefeng Wang 2024-08-27 1140 #else 2b5df10a15dc74 Ma Wupeng 2025-01-16 @1141 static inline int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill); 16038c4fffd802 Kefeng Wang 2024-08-27 @1142 { 2b5df10a15dc74 Ma Wupeng 2025-01-16 1143 return -EBUSY; 16038c4fffd802 Kefeng Wang 2024-08-27 1144 } 16038c4fffd802 Kefeng Wang 2024-08-27 1145 #endif 16038c4fffd802 Kefeng Wang 2024-08-27 1146 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
