audit: make functions static

I was doing some namespace checks and found some simple stuff in
audit that could be cleaned up. Make some functions static, and
put const on make_reply payload arg.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index f0c9b2e..d2e3c78 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -60,7 +60,7 @@
 };
 
 /* fsnotify handle. */
-struct fsnotify_group *audit_watch_group;
+static struct fsnotify_group *audit_watch_group;
 
 /* fsnotify events we care about. */
 #define AUDIT_FS_WATCH (FS_MOVE | FS_CREATE | FS_DELETE | FS_DELETE_SELF |\
@@ -123,7 +123,7 @@
 	}
 }
 
-void audit_remove_watch(struct audit_watch *watch)
+static void audit_remove_watch(struct audit_watch *watch)
 {
 	list_del(&watch->wlist);
 	audit_put_parent(watch->parent);