security: remove dead hook key_session_to_parent

Unused hook.  Remove.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 0 insertions, 20 deletions

diff --git a/include/linux/security.h b/include/linux/security.h
index 73505f0c9b7..ac536eedec9 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1067,13 +1067,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      Return the length of the string (including terminating NUL) or -ve if
  *      an error.
  *      May also return 0 (and a NULL buffer pointer) if there is no label.
- * @key_session_to_parent:
- *      Forcibly assign the session keyring from a process to its parent
- *      process.
- *      @cred: Pointer to process's credentials
- *      @parent_cred: Pointer to parent process's credentials
- *      @keyring: Proposed new session keyring
- *      Return 0 if permission is granted, -ve error otherwise.
  *
  * Security hooks affecting all System V IPC operations.
  *
@@ -1642,9 +1635,6 @@ struct security_operations {
                                const struct cred *cred,
                                key_perm_t perm);
         int (*key_getsecurity)(struct key *key, char **_buffer);
-        int (*key_session_to_parent)(const struct cred *cred,
-                                     const struct cred *parent_cred,
-                                     struct key *key);
 #endif  /* CONFIG_KEYS */
 
 #ifdef CONFIG_AUDIT
@@ -2918,9 +2908,6 @@ void security_key_free(struct key *key);
 int security_key_permission(key_ref_t key_ref,
                             const struct cred *cred, key_perm_t perm);
 int security_key_getsecurity(struct key *key, char **_buffer);
-int security_key_session_to_parent(const struct cred *cred,
-                                   const struct cred *parent_cred,
-                                   struct key *key);
 
 #else
 
@@ -2948,13 +2935,6 @@ static inline int security_key_getsecurity(struct key *key, char **_buffer)
         return 0;
 }
 
-static inline int security_key_session_to_parent(const struct cred *cred,
-                                                 const struct cred *parent_cred,
-                                                 struct key *key)
-{
-        return 0;
-}
-
 #endif
 #endif /* CONFIG_KEYS */