vq2rxq
int i = vq2rxq(vq);
skb_record_rx_queue(skb, vq2rxq(rq->vq));
struct receive_queue *rq = &vi->rq[vq2rxq(rvq)];
int qidx = vq2rxq(rq->vq);
int qidx = vq2rxq(rq->vq);
unsigned int index = vq2rxq(rq->vq);