353 static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip)  in arp_ignore()  argument
362 		sip = 0;  in arp_ignore()
372 		sip = 0;  in arp_ignore()
386 	return !inet_confirm_addr(net, in_dev, sip, tip, scope);  in arp_ignore()
389 static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev)  in arp_filter()  argument
396 	rt = ip_route_output(net, sip, tip, 0, 0);  in arp_filter()
457 				__be32 sip, __be32 tip)  in arp_fwd_pvlan()  argument
464 	if (sip == tip)  in arp_fwd_pvlan()
637 	__be32 sip, tip;  in arp_process()  local
700 	memcpy(&sip, arp_ptr, 4);  in arp_process()
743 	if (sip == 0) {  in arp_process()
746 		    !arp_ignore(in_dev, sip, tip))  in arp_process()
747 			arp_send(ARPOP_REPLY, ETH_P_ARP, sip, dev, tip, sha,  in arp_process()
753 	    ip_route_input_noref(skb, tip, sip, 0, dev) == 0) {  in arp_process()
761 			dont_send = arp_ignore(in_dev, sip, tip);  in arp_process()
763 				dont_send = arp_filter(sip, tip, dev);  in arp_process()
765 				n = neigh_event_ns(&arp_tbl, sha, &sip, dev);  in arp_process()
767 					arp_send(ARPOP_REPLY, ETH_P_ARP, sip,  in arp_process()
777 			     arp_fwd_pvlan(in_dev, dev, rt, sip, tip) ||  in arp_process()
780 				n = neigh_event_ns(&arp_tbl, sha, &sip, dev);  in arp_process()
787 					arp_send(ARPOP_REPLY, ETH_P_ARP, sip,  in arp_process()
802 	n = __neigh_lookup(&arp_tbl, &sip, dev, 0);  in arp_process()
809 		is_garp = arp->ar_op == htons(ARPOP_REQUEST) && tip == sip &&  in arp_process()
810 			  inet_addr_type(net, sip) == RTN_UNICAST;  in arp_process()
814 		      inet_addr_type(net, sip) == RTN_UNICAST) || is_garp))  in arp_process()
815 			n = __neigh_lookup(&arp_tbl, &sip, dev, 1);  in arp_process()