Actually POINT to the appletalk usrreqs struct.

I guess no-one else tried to use this.. (yet)

sys/netatalk/at_proto.c

@@ -59,6 +59,7 @@ struct protosw		atalksw[] = {
 	NULL,
 	/* utility routines. */
 	ddp_init,	0,		0,		0,
+	&ddp_usrreqs
     },
 };
 

sys/netatalk/at_var.h

@@ -57,6 +57,7 @@ struct at_aliasreq {
 #define AFA_PHASE2	0x0004
 
 #ifdef KERNEL
+extern struct	pr_usrreqs ddp_usrreqs;
 struct at_ifaddr	*at_ifaddr;
 struct ifqueue		atintrq1, atintrq2;
 int			atdebug;