[PATCH] Amiga serial: static function

Make local function rs_read_proc() static in Amiga serial port driver (from
2.4.x).

drivers/char/amiserial.c

@@ -2054,8 +2054,8 @@ static inline int line_info(char *buf, struct serial_state *state)
 	return ret;
 }
 
-int rs_read_proc(char *page, char **start, off_t off, int count,
-		 int *eof, void *data)
+static int rs_read_proc(char *page, char **start, off_t off, int count,
+			int *eof, void *data)
 {
 	int len = 0, l;
 	off_t	begin = 0;