"make namespacecheck" fixes

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index 6791b83..2c24bea 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -324,7 +324,7 @@
 	.release	= single_release,
 };
 
-int pt_dump_init(void)
+static int pt_dump_init(void)
 {
 	struct dentry *pe;