- /* retransmit timer is used for feature negotiation throughout
- * connection. In this case, no packet is re-transmitted, but rather an
- * ack is generated and pending changes are splaced into its options.
- */
- if (sk->sk_send_head == NULL) {
- dccp_pr_debug("feat negotiation retransmit timeout %p\n", sk);
- if (sk->sk_state == DCCP_OPEN)
- dccp_send_ack(sk);
- goto backoff;
- }
-