[S390] sparse: fix sparse warnings about missing prototypes
Add prototypes and includes for functions used in different modules.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index d013ed3..b36537a 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -5,6 +5,7 @@
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/hugetlb.h>
+#include <asm/cacheflush.h>
#include <asm/pgtable.h>
static void change_page_attr(unsigned long addr, int numpages,
