43 #define vhost_avail_event(vq) ((__virtio16 __user *)&vq->used->ring[vq->num])
260 	vq->used = NULL;  in vhost_vq_reset()
631 			struct vring_used __user *used)  in vq_access_ok()  argument
637 	       access_ok(VERIFY_WRITE, used,  in vq_access_ok()
638 			sizeof *used + num * sizeof *used->ring + s);  in vq_access_ok()
659 					sizeof *vq->used +  in vq_log_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()
819 		BUILD_BUG_ON(__alignof__ *vq->used > VRING_USED_ALIGN_SIZE);  in vhost_vring_ioctl()
842 					   sizeof *vq->used +  in vhost_vring_ioctl()
843 					   vq->num * sizeof *vq->used->ring)) {  in vhost_vring_ioctl()
853 		vq->used = (void __user *)(unsigned long)a.used_user_addr;  in vhost_vring_ioctl()
1119 	void __user *used;  in vhost_update_used_flags()  local
1120 	if (__put_user(cpu_to_vhost16(vq, vq->used_flags), &vq->used->flags) < 0)  in vhost_update_used_flags()
1126 		used = &vq->used->flags;  in vhost_update_used_flags()
1128 			  (used - (void __user *)vq->used),  in vhost_update_used_flags()
1129 			  sizeof vq->used->flags);  in vhost_update_used_flags()
1141 		void __user *used;  in vhost_update_avail_event()  local
1145 		used = vhost_avail_event(vq);  in vhost_update_avail_event()
1147 			  (used - (void __user *)vq->used),  in vhost_update_avail_event()
1170 	if (!access_ok(VERIFY_READ, &vq->used->idx, sizeof vq->used->idx))  in vhost_init_used()
1172 	r = __get_user(last_used_idx, &vq->used->idx);  in vhost_init_used()
1488 	struct vring_used_elem __user *used;  in __vhost_add_used_n()  local
1493 	used = vq->used->ring + start;  in __vhost_add_used_n()
1495 		if (__put_user(heads[0].id, &used->id)) {  in __vhost_add_used_n()
1499 		if (__put_user(heads[0].len, &used->len)) {  in __vhost_add_used_n()
1503 	} else if (__copy_to_user(used, heads, count * sizeof *used)) {  in __vhost_add_used_n()
1513 			   ((void __user *)used - (void __user *)vq->used),  in __vhost_add_used_n()
1514 			  count * sizeof *used);  in __vhost_add_used_n()
1547 	if (__put_user(cpu_to_vhost16(vq, vq->last_used_idx), &vq->used->idx)) {  in vhost_add_used_n()
1555 			  sizeof vq->used->idx);  in vhost_add_used_n()
1642 			       &vq->used->flags, r);  in vhost_enable_notify()
1679 			       &vq->used->flags, r);  in vhost_disable_notify()