--- src/sys/dev/netif/xl/if_xlreg.h	2005/09/24 03:50:30	1.7
+++ src/sys/dev/netif/xl/if_xlreg.h	2005/09/27 02:41:29	1.8
@@ -472,7 +472,7 @@ struct xl_chain {
 	struct xl_list		*xl_ptr;
 	struct mbuf		*xl_mbuf;
 	struct xl_chain		*xl_next;
-	struct xl_chain		*xl_prev;
+	struct xl_chain		*xl_prev;	/* 3c90xB only */
 	u_int32_t		xl_phys;
 	bus_dmamap_t		xl_map;
 };