> +static int vdpasim_net_set_attr(struct vdpa_mgmt_dev *mdev, struct
> vdpa_device *dev,
> + const struct vdpa_dev_set_config *config)
> +{
> + struct vdpasim *vdpasim = container_of(dev, struct vdpasim, vdpa);
> + struct virtio_net_config *vio_config = vdpasim->config;
> +
> + mutex_lock(&vdpasim->mutex);
> +
> + if (config->mask & (1 << VDPA_ATTR_DEV_NET_CFG_MACADDR)) {
> + ether_addr_copy(vio_config->mac, config->net.mac);
> + mutex_unlock(&vdpasim->mutex);
> + return 0;
> + }
> +
> + mutex_unlock(&vdpasim->mutex);
> + return -EINVAL;
EOPNOTSUPP would be more appropriate.
Andrew
