tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: df3541670ca99b09f2f70d1733516ef7a2289b29 commit: 91bac2310ae7eca9d9869222c96fcc3d02851eea [1424/1424] mm: add function __putback_isolated_page config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20250303/202503031153.NCtb0XuW-lkp@i...) 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/20250303/202503031153.NCtb0XuW-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202503031153.NCtb0XuW-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/page_alloc.c:21: include/linux/pagemap.h:425:21: warning: cast from 'int (*)(struct file *, struct page *)' to 'filler_t *' (aka 'int (*)(void *, struct page *)') converts to incompatible function type [-Wcast-function-type-strict] 425 | filler_t *filler = (filler_t *)mapping->a_ops->readpage; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from mm/page_alloc.c:58: include/linux/mm_inline.h:32:41: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 32 | __mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~ ^ ~~~ include/linux/mm_inline.h:34:22: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 34 | NR_ZONE_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~~~~~~ ^ ~~~ mm/page_alloc.c:1419:6: warning: no previous prototype for function 'set_zone_contiguous' [-Wmissing-prototypes] 1419 | void set_zone_contiguous(struct zone *zone) | ^ mm/page_alloc.c:1419:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1419 | void set_zone_contiguous(struct zone *zone) | ^ | static mm/page_alloc.c:1441:6: warning: no previous prototype for function 'clear_zone_contiguous' [-Wmissing-prototypes] 1441 | void clear_zone_contiguous(struct zone *zone) | ^ mm/page_alloc.c:1441:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1441 | void clear_zone_contiguous(struct zone *zone) | ^ | static mm/page_alloc.c:2304:5: warning: no previous prototype for function 'find_suitable_fallback' [-Wmissing-prototypes] 2304 | int find_suitable_fallback(struct free_area *area, unsigned int order, | ^ mm/page_alloc.c:2304:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2304 | int find_suitable_fallback(struct free_area *area, unsigned int order, | ^ | static mm/page_alloc.c:3081:3: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type') [-Wenum-enum-conversion] 3081 | __count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:127:34: note: expanded from macro '__count_zid_vm_events' 127 | __count_vm_events(item##_NORMAL - ZONE_NORMAL + zid, delta) | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ mm/page_alloc.c:3129:2: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type') [-Wenum-enum-conversion] 3129 | __count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:127:34: note: expanded from macro '__count_zid_vm_events' 127 | __count_vm_events(item##_NORMAL - ZONE_NORMAL + zid, delta) | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ 8 warnings generated.
mm/page_alloc.c:3005: warning: Function parameter or member 'mt' not described in '__putback_isolated_page' mm/page_alloc.o: warning: objtool: missing symbol for section .ref.text
vim +3005 mm/page_alloc.c 2995 2996 /** 2997 * __putback_isolated_page - Return a now-isolated page back where we got it 2998 * @page: Page that was isolated 2999 * @order: Order of the isolated page 3000 * 3001 * This function is meant to return a page pulled from the free lists via 3002 * __isolate_free_page back to the free lists they were pulled from. 3003 */ 3004 void __putback_isolated_page(struct page *page, unsigned int order, int mt)
3005 { 3006 struct zone *zone = page_zone(page); 3007 3008 /* zone lock should be held when this function is called */ 3009 lockdep_assert_held(&zone->lock); 3010 3011 /* Return isolated page to tail of freelist. */ 3012 __free_one_page(page, page_to_pfn(page), zone, order, mt); 3013 } 3014
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