1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8b257c43855b..1171a292e06e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -372,7 +372,14 @@ static inline int put_page_unless_one(struct page *page)
 }
 
 extern int page_is_ram(unsigned long pfn);
-extern int region_is_ram(resource_size_t phys_addr, unsigned long size);
+
+enum {
+	REGION_INTERSECTS,
+	REGION_DISJOINT,
+	REGION_MIXED,
+};
+
+int region_intersects(resource_size_t offset, size_t size, const char *type);
 
 /* Support for virtually mapped pages */
 struct page *vmalloc_to_page(const void *addr);