Subject: Re: [PATCH 1/2] virito: introduce methods of fixing device features

From: Rusty Russell <[email-masked]>
Date: Mon, 24 Nov 2014 11:38:13 +1030

Jason Wang <[email-masked]> writes:
> Buggy host may advertised buggy host features (a usual case is that host
> advertise a feature whose dependencies were missed). In this case, driver
> should detect and disable the buggy features by itself.

Sorry, I've been focussing elsewhere.

I would really prefer that drivers offer a "feature_depends" table,
which can indicate that feature A depends on feature B, and have the
core iterate, complain and fixup as necessary.

Is that expressive enough, or do we need more?

Thanks,
Rusty.