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-rw-r--r--security/keys/keyring.c45
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