ts_recent
ttcp_st->timestamp_recent = tcp->tcp_delegated.ts_recent;
xtcp_ag->ts_to_echo = tcp->tcp_delegated.ts_recent;
tcp->tcp_delegated.ts_recent = tst_tcp->timestamp_recent;
u32_t ts_recent;
__le32 ts_recent /* The timestamp value to send in the next ACK */;
__le32 ts_recent /* The timestamp value to send in the next ACK */;