Re: [PATCH V2 6/8] mdev: introduce virtio device and its device ops

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On Thu, Sep 26, 2019 at 12:04:46PM +0800, Jason Wang wrote:
> > > > I'm not sure how stable above ops are.
> > > It's the kernel internal API, so there's no strict requirement for this. We
> > > will export a version value for userspace for compatibility.
> > Given it's tied to virtio we probably want kernel+userspace
> > feature bits?
> 
> 
> Yes, then I think we could probably have a version field inside e.g
> device_ops structure. Then it could be fetched from both kernel and
> userspace driver.
> 
> Thanks
> 


my point was feature bits not a version number.

> > 
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