linux-kernel - Re: [PATCH 1/2] virito: introduce methods of fixing device features

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Message-ID: <87sih9xv5u.fsf@rustcorp.com.au>
Date:	Mon, 24 Nov 2014 11:38:13 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Jason Wang <jasowang@...hat.com>, mst@...hat.com,
	virtualization@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Cc:	netdev@...r.kernel.org, Jason Wang <jasowang@...hat.com>
Subject: Re: [PATCH 1/2] virito: introduce methods of fixing device features

Jason Wang <jasowang@...hat.com> 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.
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