1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/key.h b/include/linux/key.h
index 8c275d12ef63..e81ebf910d0b 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -205,6 +205,11 @@ struct key_type {
         /* match a key against a description */
         int (*match)(const struct key *key, const void *desc);
 
+        /* clear some of the data from a key on revokation (optional)
+         * - the key's semaphore will be write-locked by the caller
+         */
+        void (*revoke)(struct key *key);
+
         /* clear the data from a key (optional) */
         void (*destroy)(struct key *key);