tipc_link_advance_transmq
released += tipc_link_advance_transmq(l, l, msg_ack(hdr), 0,
released = tipc_link_advance_transmq(l, l, ack, gap, ga, xmitq,
tipc_link_advance_transmq(l, r, acked, gap, ga, retrq, &unused, &rc);
static int tipc_link_advance_transmq(struct tipc_link *l, struct tipc_link *r,