tick/broadcast: Fix warning about undefined tick_broadcast_oneshot_offline()

Randconfig builds with

  CONFIG_TICK_ONESHOT=y
  CONFIG_HOTPLUG_CPU=n

trigger

  kernel/time/tick-broadcast.c:39:13: warning: ‘tick_broadcast_oneshot_offline’ \
	  declared ‘static’ but never defined [-Wunused-function]

due to that function's definition missing.

Move the CONFIG_HOTPLUG_CPU ifdeffery around its declaration too.

Fixes: 1b72d43 ("tick: Remove outgoing CPU from broadcast masks")
Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
Reviewed-by: Mukesh Ojha <[email protected]>
Cc: Valentin Schneider <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]

Author: suryasaimadhu

kernel/time/tick-broadcast.c

@@ -36,12 +36,16 @@ static __cacheline_aligned_in_smp DEFINE_RAW_SPINLOCK(tick_broadcast_lock);
 static void tick_broadcast_setup_oneshot(struct clock_event_device *bc);
 static void tick_broadcast_clear_oneshot(int cpu);
 static void tick_resume_broadcast_oneshot(struct clock_event_device *bc);
+# ifdef CONFIG_HOTPLUG_CPU
 static void tick_broadcast_oneshot_offline(unsigned int cpu);
+# endif
 #else
 static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc) { BUG(); }
 static inline void tick_broadcast_clear_oneshot(int cpu) { }
 static inline void tick_resume_broadcast_oneshot(struct clock_event_device *bc) { }
+# ifdef CONFIG_HOTPLUG_CPU
 static inline void tick_broadcast_oneshot_offline(unsigned int cpu) { }
+# endif
 #endif
 
 /*