v4.19.13 snapshot.
diff --git a/include/linux/securebits.h b/include/linux/securebits.h
new file mode 100644
index 0000000..6565286
--- /dev/null
+++ b/include/linux/securebits.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_SECUREBITS_H
+#define _LINUX_SECUREBITS_H 1
+
+#include <uapi/linux/securebits.h>
+
+#define issecure(X)		(issecure_mask(X) & current_cred_xxx(securebits))
+#endif /* !_LINUX_SECUREBITS_H */