diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 5f830bc6f287..e9c2e7c584d9 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1236,6 +1236,7 @@ long keyctl_get_security(key_serial_t keyid,
  */
 long keyctl_session_to_parent(void)
 {
+#ifdef TIF_NOTIFY_RESUME
 	struct task_struct *me, *parent;
 	const struct cred *mycred, *pcred;
 	struct cred *cred, *oldcred;
@@ -1326,6 +1327,15 @@ long keyctl_session_to_parent(void)
 error_keyring:
 	key_ref_put(keyring_r);
 	return ret;
+
+#else /* !TIF_NOTIFY_RESUME */
+	/*
+	 * To be removed when TIF_NOTIFY_RESUME has been implemented on
+	 * m68k/xtensa
+	 */
+#warning TIF_NOTIFY_RESUME not implemented
+	return -EOPNOTSUPP;
+#endif /* !TIF_NOTIFY_RESUME */
 }
 
 /*****************************************************************************/