timerqueue: Make timerqueue_getnext() static inline

No point in calling a function just to dereference a pointer.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>

include/linux/timerqueue.h

@@ -20,10 +20,23 @@ extern void timerqueue_add(struct timerqueue_head *head,
 				struct timerqueue_node *node);
 extern void timerqueue_del(struct timerqueue_head *head,
 				struct timerqueue_node *node);
-extern struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head);
 extern struct timerqueue_node *timerqueue_iterate_next(
 						struct timerqueue_node *node);
 
+/**
+ * timerqueue_getnext - Returns the timer with the earlies expiration time
+ *
+ * @head: head of timerqueue
+ *
+ * Returns a pointer to the timer node that has the
+ * earliest expiration time.
+ */
+static inline
+struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head)
+{
+	return head->next;
+}
+
 static inline void timerqueue_init(struct timerqueue_node *node)
 {
 	RB_CLEAR_NODE(&node->node);

lib/timerqueue.c

@@ -84,20 +84,6 @@ void timerqueue_del(struct timerqueue_head *head, struct timerqueue_node *node)
 }
 EXPORT_SYMBOL_GPL(timerqueue_del);
 
-/**
- * timerqueue_getnext - Returns the timer with the earlies expiration time
- *
- * @head: head of timerqueue
- *
- * Returns a pointer to the timer node that has the
- * earliest expiration time.
- */
-struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head)
-{
-	return head->next;
-}
-EXPORT_SYMBOL_GPL(timerqueue_getnext);
-
 /**
  * timerqueue_iterate_next - Returns the timer after the provided timer
  *