tcpcbackq
&tcpcbackq[tp->tt_cpu].head,
struct tcpcbackq tcpcbackq[MAXCPU];
TAILQ_INIT(&tcpcbackq[cpu].head);
while ((tp = TAILQ_FIRST(&tcpcbackq[cpu].head)) != NULL) {
TAILQ_REMOVE(&tcpcbackq[cpu].head, tp, t_outputq);
TAILQ_REMOVE(&tcpcbackq[tp->tt_cpu].head, tp, t_outputq);
extern struct tcpcbackq tcpcbackq[];