251 	return (vq->indirect && total_sg > 1 && vq->vq.num_free);  in virtqueue_use_indirect()
422 	vq->vq.num_free = num;  in virtqueue_init()
596 	if (unlikely(vq->vq.num_free < descs_used)) {  in virtqueue_add_split()
598 			 descs_used, vq->vq.num_free);  in virtqueue_add_split()
670 	vq->vq.num_free -= descs_used;  in virtqueue_add_split()
780 		vq->vq.num_free++;  in detach_buf_split()
788 	vq->vq.num_free++;  in detach_buf_split()
995 	BUG_ON(vq->vq.num_free != vq->split.vring.num);  in virtqueue_detach_unused_buf_split()
1302 	if (unlikely(vq->vq.num_free < 1)) {  in virtqueue_add_indirect_packed()
1361 	vq->vq.num_free -= 1;  in virtqueue_add_indirect_packed()
1452 	if (unlikely(vq->vq.num_free < descs_used)) {  in virtqueue_add_packed()
1454 			 descs_used, vq->vq.num_free);  in virtqueue_add_packed()
1506 	vq->vq.num_free -= descs_used;  in virtqueue_add_packed()
1616 	vq->vq.num_free += state->num;  in detach_buf_packed()
1821 		bufs = (vq->packed.vring.num - vq->vq.num_free) * 3 / 4;  in virtqueue_enable_cb_delayed_packed()
1885 	BUG_ON(vq->vq.num_free != vq->packed.vring.num);  in virtqueue_detach_unused_buf_packed()
2796 	if (num != vq->vq.num_free) {  in virtqueue_set_dma_premapped()