+#define pmap_update(pmap) /* nothing (yet) */
Better to use
+#define	pmap_update(pmap)	__nothing
(which should elsewhere be defined as
#define __nothing do {} while /* CONSTCOND */ 0
+--------------------+--------------------------+-----------------------+
| Paul Goyette       | PGP Key fingerprint:     | E-mail addresses:     |
| (Retired)          | FA29 0E3B 35AF E8AE 6651 | paul%whooppee.com@localhost     |
| Software Developer | 0786 F758 55DE 53BA 7731 | pgoyette%netbsd.org@localhost   |
+--------------------+--------------------------+-----------------------+