hrtimer: Rename __hrtimer_hres_active() to hrtimer_hres_active()

[ Upstream commit b7c8e1f ]

The function hrtimer_hres_active() are defined in the hrtimer.c file, but
not called elsewhere, so rename __hrtimer_hres_active() to
hrtimer_hres_active() and remove the old hrtimer_hres_active() function.

kernel/time/hrtimer.c:653:19: warning: unused function 'hrtimer_hres_active'.

Fixes: 82ccdf0 ("hrtimer: Remove unused function")
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Link: https://lore.kernel.org/r/20240418023000.130324-1-jiapeng.chong@linux.alibaba.com
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8778
Stable-dep-of: e895f8e ("hrtimers: Unconditionally update target CPU base after offline timer migration")
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: Jiapeng Chong

kernel/time/hrtimer.c

@@ -669,17 +669,12 @@ static inline ktime_t hrtimer_update_base(struct hrtimer_cpu_base *base)
 /*
  * Is the high resolution mode active ?
  */
-static inline int __hrtimer_hres_active(struct hrtimer_cpu_base *cpu_base)
+static inline int hrtimer_hres_active(struct hrtimer_cpu_base *cpu_base)
 {
 	return IS_ENABLED(CONFIG_HIGH_RES_TIMERS) ?
 		cpu_base->hres_active : 0;
 }
 
-static inline int hrtimer_hres_active(void)
-{
-	return __hrtimer_hres_active(this_cpu_ptr(&hrtimer_bases));
-}
-
 static void __hrtimer_reprogram(struct hrtimer_cpu_base *cpu_base,
 				struct hrtimer *next_timer,
 				ktime_t expires_next)
@@ -703,7 +698,7 @@ static void __hrtimer_reprogram(struct hrtimer_cpu_base *cpu_base,
 	 * set. So we'd effectively block all timers until the T2 event
 	 * fires.
 	 */
-	if (!__hrtimer_hres_active(cpu_base) || cpu_base->hang_detected)
+	if (!hrtimer_hres_active(cpu_base) || cpu_base->hang_detected)
 		return;
 
 	tick_program_event(expires_next, 1);
@@ -812,12 +807,12 @@ static void retrigger_next_event(void *arg)
 	 * function call will take care of the reprogramming in case the
 	 * CPU was in a NOHZ idle sleep.
 	 */
-	if (!__hrtimer_hres_active(base) && !tick_nohz_active)
+	if (!hrtimer_hres_active(base) && !tick_nohz_active)
 		return;
 
 	raw_spin_lock(&base->lock);
 	hrtimer_update_base(base);
-	if (__hrtimer_hres_active(base))
+	if (hrtimer_hres_active(base))
 		hrtimer_force_reprogram(base, 0);
 	else
 		hrtimer_update_next_event(base);
@@ -974,7 +969,7 @@ void clock_was_set(unsigned int bases)
 	cpumask_var_t mask;
 	int cpu;
 
-	if (!__hrtimer_hres_active(cpu_base) && !tick_nohz_active)
+	if (!hrtimer_hres_active(cpu_base) && !tick_nohz_active)
 		goto out_timerfd;
 
 	if (!zalloc_cpumask_var(&mask, GFP_KERNEL)) {
@@ -1551,7 +1546,7 @@ u64 hrtimer_get_next_event(void)
 
 	raw_spin_lock_irqsave(&cpu_base->lock, flags);
 
-	if (!__hrtimer_hres_active(cpu_base))
+	if (!hrtimer_hres_active(cpu_base))
 		expires = __hrtimer_get_next_event(cpu_base, HRTIMER_ACTIVE_ALL);
 
 	raw_spin_unlock_irqrestore(&cpu_base->lock, flags);
@@ -1574,7 +1569,7 @@ u64 hrtimer_next_event_without(const struct hrtimer *exclude)
 
 	raw_spin_lock_irqsave(&cpu_base->lock, flags);
 
-	if (__hrtimer_hres_active(cpu_base)) {
+	if (hrtimer_hres_active(cpu_base)) {
 		unsigned int active;
 
 		if (!cpu_base->softirq_activated) {
@@ -1946,7 +1941,7 @@ void hrtimer_run_queues(void)
 	unsigned long flags;
 	ktime_t now;
 
-	if (__hrtimer_hres_active(cpu_base))
+	if (hrtimer_hres_active(cpu_base))
 		return;
 
 	/*