Hi Brendan, kernel test robot noticed the following build errors: [auto build test ERROR on d58172d128acbafa2295aa17cc96e28260da9a86] url: https://github.com/intel-lab-lkp/linux/commits/Brendan-Jackman/mm-page_alloc-Add-lockdep-assertion-for-pageblock-type-change/20250228-002107 base: d58172d128acbafa2295aa17cc96e28260da9a86 patch link: https://lore.kernel.org/r/20250227-pageblock-lockdep-v1-1-3701efb331bb%40google.com patch subject: [PATCH] mm/page_alloc: Add lockdep assertion for pageblock type change config: x86_64-buildonly-randconfig-002-20250228 (https://download.01.org/0day-ci/archive/20250301/202503010129.rJvGqZN1-lkp@xxxxxxxxx/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250301/202503010129.rJvGqZN1-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/202503010129.rJvGqZN1-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from mm/page_alloc.c:19: In file included from include/linux/mm.h:2302: include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from mm/page_alloc.c:44: include/linux/mm_inline.h:47:41: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 47 | __mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~ ^ ~~~ include/linux/mm_inline.h:49:22: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 49 | NR_ZONE_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~~~~~~ ^ ~~~ >> mm/page_alloc.c:421:3: error: call to undeclared function 'in_mem_hotplug'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 421 | in_mem_hotplug() || | ^ mm/page_alloc.c:2857:2: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type') [-Wenum-enum-conversion] 2857 | __count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:139:34: note: expanded from macro '__count_zid_vm_events' 139 | __count_vm_events(item##_NORMAL - ZONE_NORMAL + zid, delta) | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ mm/page_alloc.c:2974:3: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type') [-Wenum-enum-conversion] 2974 | __count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:139:34: note: expanded from macro '__count_zid_vm_events' 139 | __count_vm_events(item##_NORMAL - ZONE_NORMAL + zid, delta) | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ mm/page_alloc.c:4745:2: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type') [-Wenum-enum-conversion] 4745 | __count_zid_vm_events(PGALLOC, zone_idx(zone), nr_account); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:139:34: note: expanded from macro '__count_zid_vm_events' 139 | __count_vm_events(item##_NORMAL - ZONE_NORMAL + zid, delta) | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ 6 warnings and 1 error generated. vim +/in_mem_hotplug +421 mm/page_alloc.c 417 418 void set_pageblock_migratetype(struct page *page, int migratetype) 419 { 420 lockdep_assert_once(system_state == SYSTEM_BOOTING || > 421 in_mem_hotplug() || 422 lockdep_is_held(&page_zone(page)->lock)); 423 424 if (unlikely(page_group_by_mobility_disabled && 425 migratetype < MIGRATE_PCPTYPES)) 426 migratetype = MIGRATE_UNMOVABLE; 427 428 set_pfnblock_flags_mask(page, (unsigned long)migratetype, 429 page_to_pfn(page), MIGRATETYPE_MASK); 430 } 431 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
