620 		struct arp_eth_header *arp;  in key_extract_l3l4()  local
623 		arp = (struct arp_eth_header *)skb_network_header(skb);  in key_extract_l3l4()
626 		    arp->ar_hrd == htons(ARPHRD_ETHER) &&  in key_extract_l3l4()
627 		    arp->ar_pro == htons(ETH_P_IP) &&  in key_extract_l3l4()
628 		    arp->ar_hln == ETH_ALEN &&  in key_extract_l3l4()
629 		    arp->ar_pln == 4) {  in key_extract_l3l4()
632 			if (ntohs(arp->ar_op) <= 0xff)  in key_extract_l3l4()
633 				key->ip.proto = ntohs(arp->ar_op);  in key_extract_l3l4()
637 			memcpy(&key->ipv4.addr.src, arp->ar_sip, sizeof(key->ipv4.addr.src));  in key_extract_l3l4()
638 			memcpy(&key->ipv4.addr.dst, arp->ar_tip, sizeof(key->ipv4.addr.dst));  in key_extract_l3l4()
639 			ether_addr_copy(key->ipv4.arp.sha, arp->ar_sha);  in key_extract_l3l4()
640 			ether_addr_copy(key->ipv4.arp.tha, arp->ar_tha);  in key_extract_l3l4()