uml: make several things static

Make several things static, because they no longer need to be global.

Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index cec0c33..49266f6 100644
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -34,7 +34,7 @@
 
 static struct tty_driver *console_driver;
 
-void stdio_announce(char *dev_name, int dev)
+static void stdio_announce(char *dev_name, int dev)
 {
 	printk(KERN_INFO "Virtual console %d assigned device '%s'\n", dev,
 	       dev_name);
@@ -158,7 +158,7 @@
 	.index		= -1,
 };
 
-int stdio_init(void)
+static int stdio_init(void)
 {
 	char *new_title;