Don't use pessimal (u_short) types for i/o ports. This is mainly for

completenss.  The pessimization is tiny compared with i/o port slowness
except on very old machines, but code that used signed short types for
i/o ports was unpessimized long ago, and the macro that detected it
recently started working for u_short types too.  Use of bus space
should have made this moot long ago.

Not tested at runtime by:  bde

sys/dev/ie/if_ievar.h

@@ -40,7 +40,7 @@ struct ie_softc {
 	bus_space_tag_t		mem_bt;
 	bus_space_handle_t	mem_bh;
 
-	u_short	 port;		/* i/o base address for this interface */
+	u_int	 port;		/* i/o base address for this interface */
 	caddr_t	 iomem;		/* memory size */
 	caddr_t	 iomembot;	/* memory base address */
 	unsigned iosize;