2 files changed, 13 insertions, 9 deletions

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 660d91dea78c..44c7d280b1a5 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -25,17 +25,18 @@
  * Mode arguments of xxx_hrtimer functions:
  */
 enum hrtimer_mode {
-        HRTIMER_ABS,    /* Time value is absolute */
-        HRTIMER_REL,    /* Time value is relative to now */
+        HRTIMER_MODE_ABS,       /* Time value is absolute */
+        HRTIMER_MODE_REL,       /* Time value is relative to now */
 };
 
+/*
+ * Return values for the callback function
+ */
 enum hrtimer_restart {
-        HRTIMER_NORESTART,
-        HRTIMER_RESTART,
+        HRTIMER_NORESTART,      /* Timer is not restarted */
+        HRTIMER_RESTART,        /* Timer must be restarted */
 };
 
-#define HRTIMER_INACTIVE        ((void *)1UL)
-
 struct hrtimer_base;
 
 /**
@@ -52,7 +53,7 @@ struct hrtimer_base;
 struct hrtimer {
         struct rb_node          node;
         ktime_t                 expires;
-        int                     (*function)(struct hrtimer *);
+        enum hrtimer_restart    (*function)(struct hrtimer *);
         struct hrtimer_base     *base;
 };
 
@@ -114,7 +115,10 @@ extern int hrtimer_start(struct hrtimer *timer, ktime_t tim,
 extern int hrtimer_cancel(struct hrtimer *timer);
 extern int hrtimer_try_to_cancel(struct hrtimer *timer);
 
-#define hrtimer_restart(timer) hrtimer_start((timer), (timer)->expires, HRTIMER_ABS)
+static inline int hrtimer_restart(struct hrtimer *timer)
+{
+        return hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
+}
 
 /* Query timers: */
 extern ktime_t hrtimer_get_remaining(const struct hrtimer *timer);
diff --git a/include/linux/timer.h b/include/linux/timer.h
index bd0af324fd48..44d41e9d7818 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -106,7 +106,7 @@ static inline void add_timer(struct timer_list *timer)
 extern void init_timers(void);
 extern void run_local_timers(void);
 struct hrtimer;
-extern int it_real_fn(struct hrtimer *);
+extern enum hrtimer_restart it_real_fn(struct hrtimer *);
 
 unsigned long __round_jiffies(unsigned long j, int cpu);
 unsigned long __round_jiffies_relative(unsigned long j, int cpu);