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

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Message-ID: <848153913.16119602.1416985740195.JavaMail.zimbra@redhat.com>
Date:	Wed, 26 Nov 2014 02:09:00 -0500 (EST)
From:	Jason Wang <jasowang@...hat.com>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	mst@...hat.com, virtualization@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] virito: introduce methods of fixing device features



----- Original Message -----
> 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.

I suggested something like this in https://lkml.org/lkml/2014/11/19/132, but
Michael does not like it ...
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