1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/key.h b/include/linux/key.h
index 183a6af7715d..5253471cd2ea 100644
--- a/include/linux/key.h
+++ b/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;
 }
@@ -293,6 +293,9 @@ static inline bool key_is_instantiated(const struct key *key)
         (rcu_dereference_protected((KEY)->payload.rcudata,              \
                                    rwsem_is_locked(&((struct key *)(KEY))->sem)))
 
+#define rcu_assign_keypointer(KEY, PAYLOAD)                             \
+        (rcu_assign_pointer((KEY)->payload.rcudata, PAYLOAD))
+
 #ifdef CONFIG_SYSCTL
 extern ctl_table key_sysctls[];
 #endif