diff --git a/[refs] b/[refs]
index 4b349ec3cc43..78de1212ae14 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f6b24579d099ebb67f39cd7924a72a7eec0ce6ae
+refs/heads/master: 456a8167e94b66f406c27400a46a707b870452b0
diff --git a/trunk/include/linux/key.h b/trunk/include/linux/key.h
index bfc014c57351..5253471cd2ea 100644
--- a/trunk/include/linux/key.h
+++ b/trunk/include/linux/key.h
@@ -271,7 +271,7 @@ extern int keyring_add_key(struct key *keyring,
 
 extern struct key *key_lookup(key_serial_t id);
 
-static inline key_serial_t key_serial(struct key *key)
+static inline key_serial_t key_serial(const struct key *key)
 {
 	return key ? key->serial : 0;
 }