2 files changed, 0 insertions, 9 deletions

diff --git a/include/keys/user-type.h b/include/keys/user-type.h
index 26f6ec38577a..a3dae1803f45 100644
--- a/include/keys/user-type.h
+++ b/include/keys/user-type.h
@@ -35,7 +35,6 @@ struct user_key_payload {
 extern struct key_type key_type_user;
 
 extern int user_instantiate(struct key *key, const void *data, size_t datalen);
-extern int user_duplicate(struct key *key, const struct key *source);
 extern int user_update(struct key *key, const void *data, size_t datalen);
 extern int user_match(const struct key *key, const void *criterion);
 extern void user_destroy(struct key *key);
diff --git a/include/linux/key.h b/include/linux/key.h
index 53513a3be53b..4d189e51bc6c 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -193,14 +193,6 @@ struct key_type {
          */
         int (*instantiate)(struct key *key, const void *data, size_t datalen);
 
-        /* duplicate a key of this type (optional)
-         * - the source key will be locked against change
-         * - the new description will be attached
-         * - the quota will have been adjusted automatically from
-         *   source->quotalen
-         */
-        int (*duplicate)(struct key *key, const struct key *source);
-
         /* update a key of this type (optional)
          * - this method should call key_payload_reserve() to recalculate the
          *   quota consumption