I don't know if we recycle them somehow, but just in case...
diff --git sys/sys/file.h sys/sys/file.h
index d98118e..64c0f31 100644
--- sys/sys/file.h
+++ sys/sys/file.h
@@ -67,11 +67,11 @@ struct file {
short f_flag; /* see fcntl.h */
#define DTYPE_VNODE 1 /* file */
#define DTYPE_SOCKET 2 /* communications endpoint */
#define DTYPE_PIPE 3 /* pipe */
#define DTYPE_KQUEUE 4 /* event queue */
-#define DTYPE_CRYPTO 5 /* crypto */
+/* was define DTYPE_CRYPTO 5 */
#define DTYPE_SYSTRACE 6 /* system call tracing */
short f_type; /* descriptor type */
long f_count; /* reference count */
long f_msgcount; /* references from message queue */
struct ucred *f_cred; /* credentials associated with descriptor */
