Hi Menglong, kernel test robot noticed the following build warnings: [auto build test WARNING on tip/master] url: https://github.com/intel-lab-lkp/linux/commits/Menglong-Dong/arch-add-the-macro-COMPILE_OFFSETS-to-all-the-asm-offsets-c/20250810-110846 base: tip/master patch link: https://lore.kernel.org/r/20250810030442.246974-3-dongml2%40chinatelecom.cn patch subject: [PATCH tip 2/3] sched: make migrate_enable/migrate_disable inline config: arc-randconfig-001-20250810 (https://download.01.org/0day-ci/archive/20250810/202508101230.2KBZa0Ql-lkp@xxxxxxxxx/config) compiler: arc-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250810/202508101230.2KBZa0Ql-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/202508101230.2KBZa0Ql-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> kernel/sched/core.c:2385:6: warning: no previous prototype for '__migrate_enable' [-Wmissing-prototypes] void __migrate_enable(void) ^~~~~~~~~~~~~~~~ vim +/__migrate_enable +2385 kernel/sched/core.c 2384 > 2385 void __migrate_enable(void) 2386 { 2387 struct task_struct *p = current; 2388 struct affinity_context ac = { 2389 .new_mask = &p->cpus_mask, 2390 .flags = SCA_MIGRATE_ENABLE, 2391 }; 2392 2393 __set_cpus_allowed_ptr(p, &ac); 2394 } 2395 EXPORT_SYMBOL_GPL(__migrate_enable); 2396 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
