42 #define vhost_used_event(vq) ((__virtio16 __user *)&vq->avail->ring[vq->num])
43 #define vhost_avail_event(vq) ((__virtio16 __user *)&vq->used->ring[vq->num])
61 	if (s.num != VHOST_VRING_LITTLE_ENDIAN &&  in vhost_set_vring_endian()
62 	    s.num != VHOST_VRING_BIG_ENDIAN)  in vhost_set_vring_endian()
65 	vq->user_be = s.num;  in vhost_set_vring_endian()
75 		.num = vq->user_be  in vhost_get_vring_endian()
257 	vq->num = 1;  in vhost_vq_reset()
628 static int vq_access_ok(struct vhost_virtqueue *vq, unsigned int num,  in vq_access_ok()  argument
634 	return access_ok(VERIFY_READ, desc, num * sizeof *desc) &&  in vq_access_ok()
636 			 sizeof *avail + num * sizeof *avail->ring + s) &&  in vq_access_ok()
638 			sizeof *used + num * sizeof *used->ring + s);  in vq_access_ok()
660 					vq->num * sizeof *vq->used->ring + s));  in vq_log_access_ok()
667 	return vq_access_ok(vq, vq->num, vq->desc, vq->avail, vq->used) &&  in vhost_vq_access_ok()
768 		if (!s.num || s.num > 0xffff || (s.num & (s.num - 1))) {  in vhost_vring_ioctl()
772 		vq->num = s.num;  in vhost_vring_ioctl()
785 		if (s.num > 0xffff) {  in vhost_vring_ioctl()
789 		vq->last_avail_idx = s.num;  in vhost_vring_ioctl()
795 		s.num = vq->last_avail_idx;  in vhost_vring_ioctl()
831 			if (!vq_access_ok(vq, vq->num,  in vhost_vring_ioctl()
843 					   vq->num * sizeof *vq->used->ring)) {  in vhost_vring_ioctl()
1356 	if (unlikely((u16)(vq->avail_idx - last_avail_idx) > vq->num)) {  in vhost_get_vq_desc()
1364 		return vq->num;  in vhost_get_vq_desc()
1372 				&vq->avail->ring[last_avail_idx & (vq->num - 1)]))) {  in vhost_get_vq_desc()
1375 		       &vq->avail->ring[last_avail_idx % vq->num]);  in vhost_get_vq_desc()
1382 	if (unlikely(head >= vq->num)) {  in vhost_get_vq_desc()
1384 		       head, vq->num);  in vhost_get_vq_desc()
1396 		if (unlikely(i >= vq->num)) {  in vhost_get_vq_desc()
1398 			       i, vq->num, head);  in vhost_get_vq_desc()
1401 		if (unlikely(++found > vq->num)) {  in vhost_get_vq_desc()
1404 			       i, vq->num, head);  in vhost_get_vq_desc()
1492 	start = vq->last_used_idx & (vq->num - 1);  in __vhost_add_used_n()
1534 	start = vq->last_used_idx & (vq->num - 1);  in vhost_add_used_n()
1535 	n = vq->num - start;  in vhost_add_used_n()