880 	const struct tcp_md5sig_info *md5sig;  in tcp_md5_do_lookup()  local
883 	md5sig = rcu_dereference_check(tp->md5sig_info,  in tcp_md5_do_lookup()
886 	if (!md5sig)  in tcp_md5_do_lookup()
892 	hlist_for_each_entry_rcu(key, &md5sig->head, node) {  in tcp_md5_do_lookup()
919 	struct tcp_md5sig_info *md5sig;  in tcp_md5_do_add()  local
929 	md5sig = rcu_dereference_protected(tp->md5sig_info,  in tcp_md5_do_add()
932 	if (!md5sig) {  in tcp_md5_do_add()
933 		md5sig = kmalloc(sizeof(*md5sig), gfp);  in tcp_md5_do_add()
934 		if (!md5sig)  in tcp_md5_do_add()
938 		INIT_HLIST_HEAD(&md5sig->head);  in tcp_md5_do_add()
939 		rcu_assign_pointer(tp->md5sig_info, md5sig);  in tcp_md5_do_add()
956 	hlist_add_head_rcu(&key->node, &md5sig->head);  in tcp_md5_do_add()
980 	struct tcp_md5sig_info *md5sig;  in tcp_clear_md5_list()  local
982 	md5sig = rcu_dereference_protected(tp->md5sig_info, 1);  in tcp_clear_md5_list()
984 	hlist_for_each_entry_safe(key, n, &md5sig->head, node) {  in tcp_clear_md5_list()