alarmtimer: Export symbols of functions declared in linux/alarmtimer.h

Export symbols so they can be used by
drivers/staging/android/alarm-dev.c if it is built as a module.
So far alarm-dev is built-in but module support is planned (see
drivers/staging/android/TODO).
Signed-off-by: NMarcus Gelderie <redmnic@gmail.com>
[jstultz: tweaked commit message, also export newly added functions]
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>

kernel/time/alarmtimer.c

@@ -204,6 +204,7 @@ ktime_t alarm_expires_remaining(const struct alarm *alarm)
 	struct alarm_base *base = &alarm_bases[alarm->type];
 	return ktime_sub(alarm->node.expires, base->gettime());
 }
+EXPORT_SYMBOL_GPL(alarm_expires_remaining);
 
 #ifdef CONFIG_RTC_CLASS
 /**
@@ -309,6 +310,7 @@ void alarm_init(struct alarm *alarm, enum alarmtimer_type type,
 	alarm->type = type;
 	alarm->state = ALARMTIMER_STATE_INACTIVE;
 }
+EXPORT_SYMBOL_GPL(alarm_init);
 
 /**
  * alarm_start - Sets an absolute alarm to fire
@@ -329,6 +331,7 @@ int alarm_start(struct alarm *alarm, ktime_t start)
 	spin_unlock_irqrestore(&base->lock, flags);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(alarm_start);
 
 /**
  * alarm_start_relative - Sets a relative alarm to fire
@@ -342,6 +345,7 @@ int alarm_start_relative(struct alarm *alarm, ktime_t start)
 	start = ktime_add(start, base->gettime());
 	return alarm_start(alarm, start);
 }
+EXPORT_SYMBOL_GPL(alarm_start_relative);
 
 void alarm_restart(struct alarm *alarm)
 {
@@ -354,6 +358,7 @@ void alarm_restart(struct alarm *alarm)
 	alarmtimer_enqueue(base, alarm);
 	spin_unlock_irqrestore(&base->lock, flags);
 }
+EXPORT_SYMBOL_GPL(alarm_restart);
 
 /**
  * alarm_try_to_cancel - Tries to cancel an alarm timer
@@ -375,6 +380,7 @@ int alarm_try_to_cancel(struct alarm *alarm)
 	spin_unlock_irqrestore(&base->lock, flags);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(alarm_try_to_cancel);
 
 
 /**
@@ -392,6 +398,7 @@ int alarm_cancel(struct alarm *alarm)
 		cpu_relax();
 	}
 }
+EXPORT_SYMBOL_GPL(alarm_cancel);
 
 
 u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval)
@@ -424,6 +431,7 @@ u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval)
 	alarm->node.expires = ktime_add(alarm->node.expires, interval);
 	return overrun;
 }
+EXPORT_SYMBOL_GPL(alarm_forward);
 
 u64 alarm_forward_now(struct alarm *alarm, ktime_t interval)
 {
@@ -431,7 +439,7 @@ u64 alarm_forward_now(struct alarm *alarm, ktime_t interval)
 
 	return alarm_forward(alarm, base->gettime(), interval);
 }
-
+EXPORT_SYMBOL_GPL(alarm_forward_now);
 
 
 /**