1 files changed, 0 insertions, 45 deletions

diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 09d92d52ef75..d65a180f888d 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -481,51 +481,6 @@ key_ref_t __keyring_search_one(key_ref_t keyring_ref,
 
 /*****************************************************************************/
 /*
- * search for an instantiation authorisation key matching a target key
- * - the RCU read lock must be held by the caller
- * - a target_id of zero specifies any valid token
- */
-struct key *keyring_search_instkey(struct key *keyring,
-                                   key_serial_t target_id)
-{
-        struct request_key_auth *rka;
-        struct keyring_list *klist;
-        struct key *instkey;
-        int loop;
-
-        klist = rcu_dereference(keyring->payload.subscriptions);
-        if (klist) {
-                for (loop = 0; loop < klist->nkeys; loop++) {
-                        instkey = klist->keys[loop];
-
-                        if (instkey->type != &key_type_request_key_auth)
-                                continue;
-
-                        rka = instkey->payload.data;
-                        if (target_id && rka->target_key->serial != target_id)
-                                continue;
-
-                        /* the auth key is revoked during instantiation */
-                        if (!test_bit(KEY_FLAG_REVOKED, &instkey->flags))
-                                goto found;
-
-                        instkey = ERR_PTR(-EKEYREVOKED);
-                        goto error;
-                }
-        }
-
-        instkey = ERR_PTR(-EACCES);
-        goto error;
-
-found:
-        atomic_inc(&instkey->usage);
-error:
-        return instkey;
-
-} /* end keyring_search_instkey() */
-
-/*****************************************************************************/
-/*
  * find a keyring with the specified name
  * - all named keyrings are searched
  * - only find keyrings with search permission for the process