1 files changed, 3 insertions, 1 deletions

diff --git a/include/linux/timer.h b/include/linux/timer.h
index 2e78fedfc069..221f81ac2002 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -76,9 +76,11 @@ static inline void add_timer(struct timer_list * timer)
 }
 
 #ifdef CONFIG_SMP
+  extern int try_to_del_timer_sync(struct timer_list *timer);
   extern int del_timer_sync(struct timer_list *timer);
 #else
-# define del_timer_sync(t) del_timer(t)
+# define try_to_del_timer_sync(t)       del_timer(t)
+# define del_timer_sync(t)              del_timer(t)
 #endif
 
 #define del_singleshot_timer_sync(t) del_timer_sync(t)