diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index b227902..e9bb22c 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -123,6 +123,7 @@
 extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new);
 extern int insert_resource(struct resource *parent, struct resource *new);
 extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new);
+extern void arch_remove_reservations(struct resource *avail);
 extern int allocate_resource(struct resource *root, struct resource *new,
 			     resource_size_t size, resource_size_t min,
 			     resource_size_t max, resource_size_t align,