396 static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip)  in arp_ignore()  argument
402 	case 0:	/* Reply, the tip is already validated */  in arp_ignore()
404 	case 1:	/* Reply only if tip is configured on the incoming interface */  in arp_ignore()
409 		 * Reply only if tip is configured on the incoming interface  in arp_ignore()
429 	return !inet_confirm_addr(net, in_dev, sip, tip, scope);  in arp_ignore()
452 static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev)  in arp_filter()  argument
459 	rt = ip_route_output(net, sip, tip, 0, l3mdev_master_ifindex_rcu(dev),  in arp_filter()
521 				__be32 sip, __be32 tip)  in arp_fwd_pvlan()  argument
528 	if (sip == tip)  in arp_fwd_pvlan()
671 			__be32 sip, __be32 tip,  in arp_is_garp()  argument
674 	bool is_garp = tip == sip;  in arp_is_garp()
708 	__be32 sip, tip;  in arp_process()  local
782 	memcpy(&tip, arp_ptr, 4);  in arp_process()
787 	if (ipv4_is_multicast(tip) ||  in arp_process()
788 	    (!IN_DEV_ROUTE_LOCALNET(in_dev) && ipv4_is_loopback(tip)))  in arp_process()
796 	if (sip == tip && IN_DEV_ORCONF(in_dev, DROP_GRATUITOUS_ARP))  in arp_process()
830 		    inet_addr_type_dev_table(net, dev, tip) == RTN_LOCAL &&  in arp_process()
831 		    !arp_ignore(in_dev, sip, tip))  in arp_process()
832 			arp_send_dst(ARPOP_REPLY, ETH_P_ARP, sip, dev, tip,  in arp_process()
838 	    ip_route_input_noref(skb, tip, sip, 0, dev) == 0) {  in arp_process()
846 			dont_send = arp_ignore(in_dev, sip, tip);  in arp_process()
848 				dont_send = arp_filter(sip, tip, dev);  in arp_process()
853 						     sip, dev, tip, sha,  in arp_process()
863 			     arp_fwd_pvlan(in_dev, dev, rt, sip, tip) ||  in arp_process()
865 			      pneigh_lookup(&arp_tbl, net, &tip, dev, 0)))) {  in arp_process()
874 						     sip, dev, tip, sha,  in arp_process()
894 				      sip, tip, sha, tha);  in arp_process()