From 39ed699fb660c65cef4759c041763c75e0948425 Mon Sep 17 00:00:00 2001
From: Anna-Maria Behnsen <anna-maria@linutronix.de>
Date: Wed, 21 Feb 2024 10:05:30 +0100
Subject: [PATCH] timers: Split out get next timer interrupt
Split out get_next_timer_interrupt() to be able to extend it and make it
reusable for other call sites.
No functional change.
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20240221090548.36600-3-anna-maria@linutronix.de
---
kernel/time/timer.c | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 316ded68fa06..9f0cdba4afe0 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1956,15 +1956,7 @@ static u64 cmp_next_hrtimer_event(u64 basem, u64 expires)
return DIV_ROUND_UP_ULL(nextevt, TICK_NSEC) * TICK_NSEC;
}
-/**
- * get_next_timer_interrupt - return the time (clock mono) of the next timer
- * @basej: base time jiffies
- * @basem: base time clock monotonic
- *
- * Returns the tick aligned clock monotonic time of the next pending
- * timer or KTIME_MAX if no timer is pending.
- */
-u64 get_next_timer_interrupt(unsigned long basej, u64 basem)
+static inline u64 __get_next_timer_interrupt(unsigned long basej, u64 basem)
{
struct timer_base *base = this_cpu_ptr(&timer_bases[BASE_STD]);
unsigned long nextevt = basej + NEXT_TIMER_MAX_DELTA;
@@ -2023,6 +2015,19 @@ u64 get_next_timer_interrupt(unsigned long basej, u64 basem)
return cmp_next_hrtimer_event(basem, expires);
}
+/**
+ * get_next_timer_interrupt() - return the time (clock mono) of the next timer
+ * @basej: base time jiffies
+ * @basem: base time clock monotonic
+ *
+ * Returns the tick aligned clock monotonic time of the next pending
+ * timer or KTIME_MAX if no timer is pending.
+ */
+u64 get_next_timer_interrupt(unsigned long basej, u64 basem)
+{
+ return __get_next_timer_interrupt(basej, basem);
+}
+
/**
* timer_clear_idle - Clear the idle state of the timer base
*