hrtimers: Delete hrtimer_init_on_stack()

hrtimer_init_on_stack() is now unused. Delete it.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/510ce0d2944c4a382ea51e51d03dcfb73ba0f4f7.1730386209.git.namcao@linutronix.de

Author: covanam

include/linux/hrtimer.h

@@ -230,8 +230,6 @@ extern void hrtimer_init(struct hrtimer *timer, clockid_t which_clock,
 			 enum hrtimer_mode mode);
 extern void hrtimer_setup(struct hrtimer *timer, enum hrtimer_restart (*function)(struct hrtimer *),
 			  clockid_t clock_id, enum hrtimer_mode mode);
-extern void hrtimer_init_on_stack(struct hrtimer *timer, clockid_t which_clock,
-				  enum hrtimer_mode mode);
 extern void hrtimer_setup_on_stack(struct hrtimer *timer,
 				   enum hrtimer_restart (*function)(struct hrtimer *),
 				   clockid_t clock_id, enum hrtimer_mode mode);

kernel/time/hrtimer.c

@@ -1629,23 +1629,6 @@ void hrtimer_setup(struct hrtimer *timer, enum hrtimer_restart (*function)(struc
 }
 EXPORT_SYMBOL_GPL(hrtimer_setup);
 
-/**
- * hrtimer_init_on_stack - initialize a timer in stack memory
- * @timer:	The timer to be initialized
- * @clock_id:	The clock to be used
- * @mode:       The timer mode
- *
- * Similar to hrtimer_init(), except that this one must be used if struct hrtimer is in stack
- * memory.
- */
-void hrtimer_init_on_stack(struct hrtimer *timer, clockid_t clock_id,
-			   enum hrtimer_mode mode)
-{
-	debug_init_on_stack(timer, clock_id, mode);
-	__hrtimer_init(timer, clock_id, mode);
-}
-EXPORT_SYMBOL_GPL(hrtimer_init_on_stack);
-
 /**
  * hrtimer_setup_on_stack - initialize a timer on stack memory
  * @timer:	The timer to be initialized