[frederic-dynticks:timers/core 6/11] include/linux/tick.h:28:1: warning: no return statement in function returning non-void

[frederic-dynticks:timers/core 6/11] include/linux/tick.h:28:1: warning: no return statement in function returning non-void

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git timers/core
head:   018d96d27486694a8496e3937ac2f7270442c7c3
commit: 0f851847642e32105fa0ace39063fa5018379f8c [6/11] timers: Start centralizing tick related CPU hotplug operations
config: parisc-allmodconfig (https://download.01.org/0day-ci/archive/20231227/202312271122.e6aLJwtY-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231227/202312271122.e6aLJwtY-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/202312271122.e6aLJwtY-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/sched/isolation.h:6,
                    from kernel/cpu.c:13:
   include/linux/tick.h: In function 'tick_cpu_dying':
>> include/linux/tick.h:28:1: warning: no return statement in function returning non-void [-Wreturn-type]
      28 | static inline int tick_cpu_dying(unsigned int cpu) { }
         | ^~~~~~
--
   In file included from kernel/irq_work.c:17:
   include/linux/tick.h: In function 'tick_cpu_dying':
>> include/linux/tick.h:28:1: warning: no return statement in function returning non-void [-Wreturn-type]
      28 | static inline int tick_cpu_dying(unsigned int cpu) { }
         | ^~~~~~
   kernel/irq_work.c: At top level:
   kernel/irq_work.c:72:13: warning: no previous prototype for 'arch_irq_work_raise' [-Wmissing-prototypes]
      72 | void __weak arch_irq_work_raise(void)
         |             ^~~~~~~~~~~~~~~~~~~
--
   In file included from kernel/time/hrtimer.c:32:
   include/linux/tick.h: In function 'tick_cpu_dying':
>> include/linux/tick.h:28:1: warning: no return statement in function returning non-void [-Wreturn-type]
      28 | static inline int tick_cpu_dying(unsigned int cpu) { }
         | ^~~~~~
   kernel/time/hrtimer.c: At top level:
   kernel/time/hrtimer.c:120:35: warning: initialized field overwritten [-Woverride-init]
     120 |         [CLOCK_REALTIME]        = HRTIMER_BASE_REALTIME,
         |                                   ^~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:120:35: note: (near initialization for 'hrtimer_clock_to_base_table[0]')
   kernel/time/hrtimer.c:121:35: warning: initialized field overwritten [-Woverride-init]
     121 |         [CLOCK_MONOTONIC]       = HRTIMER_BASE_MONOTONIC,
         |                                   ^~~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:121:35: note: (near initialization for 'hrtimer_clock_to_base_table[1]')
   kernel/time/hrtimer.c:122:35: warning: initialized field overwritten [-Woverride-init]
     122 |         [CLOCK_BOOTTIME]        = HRTIMER_BASE_BOOTTIME,
         |                                   ^~~~~~~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:122:35: note: (near initialization for 'hrtimer_clock_to_base_table[7]')
   kernel/time/hrtimer.c:123:35: warning: initialized field overwritten [-Woverride-init]
     123 |         [CLOCK_TAI]             = HRTIMER_BASE_TAI,
         |                                   ^~~~~~~~~~~~~~~~
   kernel/time/hrtimer.c:123:35: note: (near initialization for 'hrtimer_clock_to_base_table[11]')


vim +28 include/linux/tick.h

    15	
    16	#ifdef CONFIG_GENERIC_CLOCKEVENTS
    17	extern void __init tick_init(void);
    18	/* Should be core only, but ARM BL switcher requires it */
    19	extern void tick_suspend_local(void);
    20	/* Should be core only, but XEN resume magic and ARM BL switcher require it */
    21	extern void tick_resume_local(void);
    22	extern int tick_cpu_dying(unsigned int cpu);
    23	extern void tick_cleanup_dead_cpu(int cpu);
    24	#else /* CONFIG_GENERIC_CLOCKEVENTS */
    25	static inline void tick_init(void) { }
    26	static inline void tick_suspend_local(void) { }
    27	static inline void tick_resume_local(void) { }
  > 28	static inline int tick_cpu_dying(unsigned int cpu) { }
    29	static inline void tick_cleanup_dead_cpu(int cpu) { }
    30	#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
    31	

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