make ds1511_rtc_{read,set}_time() static

Make the needlessly global ds1511_rtc_{read,set}_time() static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-ds1511.c

@@ -181,8 +181,7 @@ ds1511_wdog_disable(void)
  * stupidly, some callers call with year unmolested;
  * and some call with  year = year - 1900.  thanks.
  */
- int
-ds1511_rtc_set_time(struct device *dev, struct rtc_time *rtc_tm)
+static int ds1511_rtc_set_time(struct device *dev, struct rtc_time *rtc_tm)
 {
 	u8 mon, day, dow, hrs, min, sec, yrs, cen;
 	unsigned int flags;
@@ -245,8 +244,7 @@ ds1511_rtc_set_time(struct device *dev, struct rtc_time *rtc_tm)
 	return 0;
 }
 
- int
-ds1511_rtc_read_time(struct device *dev, struct rtc_time *rtc_tm)
+static int ds1511_rtc_read_time(struct device *dev, struct rtc_time *rtc_tm)
 {
 	unsigned int century;
 	unsigned int flags;