vringh_getdesc_iotlb
err = vringh_getdesc_iotlb(&cvq->vring, &cvq->riov, &cvq->wiov, &cvq->head,
ret = vringh_getdesc_iotlb(&vq->vring, &vq->out_iov, &vq->in_iov,
err = vringh_getdesc_iotlb(&cvq->vring, &cvq->in_iov,
err = vringh_getdesc_iotlb(&txq->vring, &txq->out_iov, NULL,
err = vringh_getdesc_iotlb(&rxq->vring, NULL, &rxq->in_iov,
EXPORT_SYMBOL(vringh_getdesc_iotlb);
int vringh_getdesc_iotlb(struct vringh *vrh,