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Date:	Tue, 24 Mar 2015 11:40:44 +0100
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Gerd Hoffmann <kraxel@...hat.com>
Cc:	virtio-dev@...ts.oasis-open.org,
	virtualization@...ts.linux-foundation.org,
	David Herrmann <dh.herrmann@...il.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	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 v3] Add virtio-input driver.

On Tue, Mar 24, 2015 at 11:26:50AM +0100, Gerd Hoffmann wrote:
>   Hi,
> 
> > +static void virtinput_cfg_abs(struct virtio_input *vi, int abs)
> > +{
> > +	u32 mi, ma, re, fu, fl;
> > +
> > +	virtinput_cfg_select(vi, VIRTIO_INPUT_CFG_ABS_INFO, abs);
> > +	virtio_cread(vi->vdev, struct virtio_input_config, u.abs.min, &mi);
> > +	virtio_cread(vi->vdev, struct virtio_input_config, u.abs.max, &ma);
> > +	virtio_cread(vi->vdev, struct virtio_input_config, u.abs.res, &re);
> > +	virtio_cread(vi->vdev, struct virtio_input_config, u.abs.fuzz, &fu);
> > +	virtio_cread(vi->vdev, struct virtio_input_config, u.abs.flat, &fl);
> > +	input_set_abs_params(vi->idev, abs, mi, ma, fu, fl);
> > +	input_abs_set_res(vi->idev, abs, re);
> > +}
> 
> > +struct virtio_input_absinfo {
> > +	__virtio32  min;
> > +	__virtio32  max;
> > +	__virtio32  fuzz;
> > +	__virtio32  flat;
> > +	__virtio32  res;
> > +};
> 
> Damn, had sparse disabled for the test builds.  [ Too bad there are way
> too many warnings on a full kernel build so having sparse enabled all
> the time doesn't fly. ]
> 
> So this doesn't work either.
> 
> Hmm, back to using "u32" in the virtio config structs?
> 
> cheers,
>   Gerd
> 

Weird.
Let me try this and figure out what the issue is.


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