linux-kernel - Re: [PATCH 1/1] Add virtio-input driver.

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Message-ID: <1427120855.27137.55.camel@nilsson.home.kraxel.org>
Date:	Mon, 23 Mar 2015 15:27:35 +0100
From:	Gerd Hoffmann <kraxel@...hat.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	virtio-dev@...ts.oasis-open.org,
	virtualization@...ts.linux-foundation.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	open list <linux-kernel@...r.kernel.org>,
	"open list:ABI/API" <linux-api@...r.kernel.org>
Subject: Re: [PATCH 1/1] Add virtio-input driver.

  Hi,

> > > > You are doing leXXX everywhere, that's VERSION_1 dependency.
> > > > virtio_cread will do byteswaps differently without VERSION_1.
> > > > Just don't go there.

> So to clarify, you dislike using __virtio32 in virtio input header?

Well, as I understand things __virtio32 implies byteorder depends on
whenever we are using VERSION_1 or not.  And non-transitional drivers
should not need it as everything is by definition little endian.

So, yes, your suggestion to just require VERSION_1 in the driver implies
in my eyes that there should be no reason to use __virtio32 instead of
__le32.

Or do I miss something here?

cheers,
  Gerd


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