81 	u16 last_used_idx;  member
458 	return vq->last_used_idx != virtio16_to_cpu(vq->vq.vdev, vq->vring.used->idx);  in more_used()
500 	last_used = (vq->last_used_idx & (vq->vring.num - 1));  in virtqueue_get_buf()
516 	vq->last_used_idx++;  in virtqueue_get_buf()
521 		vring_used_event(&vq->vring) = cpu_to_virtio16(_vq->vdev, vq->last_used_idx);  in virtqueue_get_buf()
570 	u16 last_used_idx;  in virtqueue_enable_cb_prepare()  local
583 	vring_used_event(&vq->vring) = cpu_to_virtio16(_vq->vdev, last_used_idx = vq->last_used_idx);  in virtqueue_enable_cb_prepare()
585 	return last_used_idx;  in virtqueue_enable_cb_prepare()
598 bool virtqueue_poll(struct virtqueue *_vq, unsigned last_used_idx)  in virtqueue_poll()  argument
603 	return (u16)last_used_idx != virtio16_to_cpu(_vq->vdev, vq->vring.used->idx);  in virtqueue_poll()
620 	unsigned last_used_idx = virtqueue_enable_cb_prepare(_vq);  in virtqueue_enable_cb()  local
621 	return !virtqueue_poll(_vq, last_used_idx);  in virtqueue_enable_cb()
655 	bufs = (u16)(vq->avail_idx_shadow - vq->last_used_idx) * 3 / 4;  in virtqueue_enable_cb_delayed()
656 	vring_used_event(&vq->vring) = cpu_to_virtio16(_vq->vdev, vq->last_used_idx + bufs);  in virtqueue_enable_cb_delayed()
658 	if (unlikely((u16)(virtio16_to_cpu(_vq->vdev, vq->vring.used->idx) - vq->last_used_idx) > bufs)) {  in virtqueue_enable_cb_delayed()
755 	vq->last_used_idx = 0;  in vring_new_virtqueue()