bsd/netinet/tcp_output.c

304 	struct mbuf *mnext = NULL;
1823 		mnext = tcp_send_lroacks(tp, m, th);
1824 		if (mnext) {
1825 			tp->t_pktlist_tail->m_nextpkt = mnext;
1826 			if (mnext->m_nextpkt == NULL) {
1827 				tp->t_pktlist_tail = mnext;
1831 				next = mnext->m_nextpkt;
2240 	struct mbuf *mnext = NULL, *ack_chain = NULL, *tail = NULL;
2284 		mnext = m_dup(prev_ack_pkt, M_DONTWAIT);
2285 		if (mnext) {
2289 			tail->m_nextpkt = mnext;
2290 			tail = mnext;
2305 		prev_ack_pkt = mnext;