Re: [dpdk-dev] [PATCH v2 17/19] vhost-user: iommu: postpone device creation until ring are mapped

[Yuanhan Liu]

On Sun, Sep 24, 2017 at 06:19:19PM +0200, Maxime Coquelin wrote:
>  static int
> -vhost_user_iotlb_msg(struct virtio_net *dev, struct VhostUserMsg *msg)
> +is_vring_iotlb_update(struct vhost_virtqueue *vq, struct vhost_iotlb_msg 
> *imsg)
>  {
> +     struct vhost_vring_addr *ra;
> +     uint64_t start, end;
> +
> +     start = imsg->iova;
> +     end = start + imsg->size;
> +
> +     ra = &vq->ring_addrs;
> +     if (ra->desc_user_addr >= start && ra->desc_user_addr < end)
> +             return 1;
> +     if (ra->avail_user_addr >= start && ra->avail_user_addr < end)
> +             return 1;
> +     if (ra->used_user_addr >= start && ra->used_user_addr < end)
> +             return 1;
> +
> +     return -1;

It should be "return 0" here.

        --yliu
> +}