789 #ifdef CONFIG_NETFILTER_DEBUG
790         /* Be very paranoid. This probably won't happen anymore, but let's
791          * keep the check just to be sure... */
792         if (skb->mac.raw < skb->head || skb->mac.raw + ETH_HLEN > skb->data) {
793                 printk(KERN_CRIT "br_netfilter: Argh!! br_nf_post_routing: "
794                        "bad mac.raw pointer.");
795                 goto print_error;
796         }
797 #endif