1 files changed, 11 insertions, 6 deletions

diff --git a/include/linux/timer.h b/include/linux/timer.h
index 3340f3bd135d..72f3a7781106 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -12,16 +12,12 @@ struct timer_list {
         struct list_head entry;
         unsigned long expires;
 
-        unsigned long magic;
-
         void (*function)(unsigned long);
         unsigned long data;
 
         struct timer_base_s *base;
 };
 
-#define TIMER_MAGIC     0x4b87ad6e
-
 extern struct timer_base_s __init_timer_base;
 
 #define TIMER_INITIALIZER(_function, _expires, _data) {         \
@@ -29,7 +25,6 @@ extern struct timer_base_s __init_timer_base;
                 .expires = (_expires),                          \
                 .data = (_data),                                \
                 .base = &__init_timer_base,                     \
-                .magic = TIMER_MAGIC,                           \
         }
 
 #define DEFINE_TIMER(_name, _function, _expires, _data)         \
@@ -38,6 +33,15 @@ extern struct timer_base_s __init_timer_base;
 
 void fastcall init_timer(struct timer_list * timer);
 
+static inline void setup_timer(struct timer_list * timer,
+                                void (*function)(unsigned long),
+                                unsigned long data)
+{
+        timer->function = function;
+        timer->data = data;
+        init_timer(timer);
+}
+
 /***
  * timer_pending - is a timer pending?
  * @timer: the timer in question
@@ -74,8 +78,9 @@ extern unsigned long next_timer_interrupt(void);
  * Timers with an ->expired field in the past will be executed in the next
  * timer tick.
  */
-static inline void add_timer(struct timer_list * timer)
+static inline void add_timer(struct timer_list *timer)
 {
+        BUG_ON(timer_pending(timer));
         __mod_timer(timer, timer->expires);
 }