ieee1394: mark all hpsb_address_ops instances as const

These are never modified.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/ieee1394/highlevel.c b/drivers/ieee1394/highlevel.c
index 6cc26ed..600e391 100644
--- a/drivers/ieee1394/highlevel.c
+++ b/drivers/ieee1394/highlevel.c
@@ -320,7 +320,7 @@
  */
 u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl,
 					 struct hpsb_host *host,
-					 struct hpsb_address_ops *ops,
+					 const struct hpsb_address_ops *ops,
 					 u64 size, u64 alignment,
 					 u64 start, u64 end)
 {
@@ -407,7 +407,8 @@
  * are automatically deallocated together with the hpsb_highlevel @hl.
  */
 int hpsb_register_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
-			    struct hpsb_address_ops *ops, u64 start, u64 end)
+			    const struct hpsb_address_ops *ops,
+			    u64 start, u64 end)
 {
 	struct hpsb_address_serve *as;
 	struct list_head *lh;
@@ -477,7 +478,7 @@
 	return retval;
 }
 
-static struct hpsb_address_ops dummy_ops;
+const static struct hpsb_address_ops dummy_ops;
 
 /* dummy address spaces as lower and upper bounds of the host's a.s. list */
 static void init_hpsb_highlevel(struct hpsb_host *host)