702 	const struct nf_ct_hook *ct_hook;  in nf_ct_attach()  local
706 		ct_hook = rcu_dereference(nf_ct_hook);  in nf_ct_attach()
707 		if (ct_hook)  in nf_ct_attach()
708 			ct_hook->attach(new, skb);  in nf_ct_attach()
716 	const struct nf_ct_hook *ct_hook;  in nf_conntrack_destroy()  local
719 	ct_hook = rcu_dereference(nf_ct_hook);  in nf_conntrack_destroy()
720 	if (ct_hook)  in nf_conntrack_destroy()
721 		ct_hook->destroy(nfct);  in nf_conntrack_destroy()
724 	WARN_ON(!ct_hook);  in nf_conntrack_destroy()
730 	const struct nf_ct_hook *ct_hook;  in nf_ct_set_closing()  local
736 	ct_hook = rcu_dereference(nf_ct_hook);  in nf_ct_set_closing()
737 	if (ct_hook)  in nf_ct_set_closing()
738 		ct_hook->set_closing(nfct);  in nf_ct_set_closing()
747 	const struct nf_ct_hook *ct_hook;  in nf_ct_get_tuple_skb()  local
751 	ct_hook = rcu_dereference(nf_ct_hook);  in nf_ct_get_tuple_skb()
752 	if (ct_hook)  in nf_ct_get_tuple_skb()
753 		ret = ct_hook->get_tuple_skb(dst_tuple, skb);  in nf_ct_get_tuple_skb()