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: i386-buildonly-randconfig-005-20250301 (https://download.01.org/0day-ci/archive/20250301/202503010632.CEkonAAQ-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250301/202503010632.CEkonAAQ-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/202503010632.CEkonAAQ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from arch/x86/include/asm/bug.h:99, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:6, from mm/page_alloc.c:19: mm/page_alloc.c: In function 'set_pageblock_migratetype': >> mm/page_alloc.c:421:17: error: implicit declaration of function 'in_mem_hotplug' [-Werror=implicit-function-declaration] 421 | in_mem_hotplug() || | ^~~~~~~~~~~~~~ include/asm-generic/bug.h:171:32: note: in definition of macro 'WARN_ON' 171 | int __ret_warn_on = !!(condition); \ | ^~~~~~~~~ include/linux/lockdep.h:282:14: note: in expansion of macro 'WARN_ON_ONCE' 282 | do { WARN_ON_ONCE(debug_locks && !(cond)); } while (0) | ^~~~~~~~~~~~ mm/page_alloc.c:420:9: note: in expansion of macro 'lockdep_assert_once' 420 | lockdep_assert_once(system_state == SYSTEM_BOOTING || | ^~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors 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
