[frederic-dynticks:task/work 5/6] include/linux/sched/isolation.h:93:52: warning: non-void function does not return a value

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git task/work
head:   3a5b43d6075ec915d0bf17d38d15f9c75d05dc26
commit: 1526f337fd88fdf6bf5184dd1d8ad334a40baac2 [5/6] sched/isolation: Introduce isolated task work
config: i386-buildonly-randconfig-005-20250207 (https://download.01.org/0day-ci/archive/20250207/202502070708.IhgkGkEH-lkp@intel.com/config)
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/20250207/202502070708.IhgkGkEH-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502070708.IhgkGkEH-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from mm/vmstat.c:28:
   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);
         |                                 ~~~~~~~~~~~~~~~~ ^ ~~~
   In file included from mm/vmstat.c:30:
>> include/linux/sched/isolation.h:93:52: warning: non-void function does not return a value [-Wreturn-type]
      93 | static inline int isolated_task_work_queue(void) { }
         |                                                    ^
   3 warnings generated.


vim +93 include/linux/sched/isolation.h

    90	
    91	extern void isolated_task_work_init(struct task_struct *tsk);
    92	#else
  > 93	static inline int isolated_task_work_queue(void) { }
    94	static inline void isolated_task_work_init(struct task_struct *tsk) { }
    95	#endif /* CONFIG_NO_HZ_FULL */
    96	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki