Re: [PATCH net] virtio-net: validate features during probe

[Cornelia Huck <cornelia.huck@de.ibm.com>]

On Wed, 19 Nov 2014 10:59:39 +0200
"Michael S. Tsirkin" <mst@redhat.com> wrote:


> +bool __virtnet_fail_on_feature(struct virtio_device *vdev, unsigned int fbit,
> +			       const char *fname)
> +{
> +	if (!virtio_has_feature(vdev, fbit))
> +		return false;
> +
> +        dev_err(&dev->dev, "missing requirements for feature bit %d: %s\n",
> +		fbit, fname);

I'd like the message to point out that this is a hypervisor problem: I
can imagine that a user would be stumped about what to do about this.
And printing what requirements are missing would probably be helpful to
someone trying to fix the hypervisor.

> +
> +	return true;
> +}
> +
>