From mboxrd@z Thu Jan  1 00:00:00 1970
From: Fabio Coatti <fabio.coatti@gmail.com>
Subject: Re: Linux 4.1 WARNING in drm_ioctl.c
Date: Tue, 23 Jun 2015 16:03:06 +0200
Message-ID: <2097942.WQeebuS9eo@calvin>
References: <34169093.qYXxFR1FLt@calvin> <3759620.yiBZ6BaR05@calvin> <20150623132941.GC25769@phenom.ffwll.local>
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Sender: linux-kernel-owner@vger.kernel.org
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>, David Airlie <airlied@linux.ie>, dri-devel <dri-devel@lists.freedesktop.org>, kernel list <linux-kernel@vger.kernel.org>
List-Id: dri-devel@lists.freedesktop.org

In data marted=C3=AC 23 giugno 2015 15:29:41, Daniel Vetter ha scritto:
> On Tue, Jun 23, 2015 at 12:46:09PM +0200, Fabio Coatti wrote:
> > In data marted=C3=AC 23 giugno 2015 11:48:47, Daniel Vetter ha scri=
tto:
> > > On Tue, Jun 23, 2015 at 08:27:13AM +0100, Daniel Stone wrote:
> > > > Hi,
> > > >=20
> > > > On 23 June 2015 at 07:39, Daniel Vetter <daniel@ffwll.ch> wrote=
:
> > > > > Which drm driver are you using? I didn't spot anything in you=
r
> > > > > module
> > > > > list
> > > > > but might have missed it. Booting with drm.debug=3D0xe and gr=
abbing
> > > > > dmesg
> > > > > will tell us for sure.
> > > >=20
> > > > That'd be vgem.
> > >=20
> > > If so then the below diff should help.
> > > -Daniel
> > > diff --git a/drivers/gpu/drm/vgem/vgem_drv.c
> > > b/drivers/gpu/drm/vgem/vgem_drv.c index 7a207ca547be..b491fb32cdd=
b
> > > 100644
> > > --- a/drivers/gpu/drm/vgem/vgem_drv.c
> > > +++ b/drivers/gpu/drm/vgem/vgem_drv.c
> > > @@ -328,6 +328,8 @@ static int __init vgem_init(void)
> > >=20
> > >  		goto out;
> > >  =09
> > >  	}
> > >=20
> > > +	drm_dev_set_unique(drm, "vgem");
> > > +
> > >=20
> > >  	ret  =3D drm_dev_register(vgem_device, 0);
> > >  =09
> > >  	if (ret)
> >=20
> > Not really sure about "drm" in drm_dev_set_unique():
> >   CHK     include/generated/compile.h
> >   GZIP    kernel/config_data.gz
> >   CHK     kernel/config_data.h
> >   CC      drivers/gpu/drm/vgem/vgem_drv.o
> >=20
> > drivers/gpu/drm/vgem/vgem_drv.c: In function =E2=80=98vgem_init=E2=80=
=99:
> > drivers/gpu/drm/vgem/vgem_drv.c:331:21: error: =E2=80=98drm=E2=80=99=
 undeclared (first use
> > in this function)
>=20
> s/drm/vgem_device/ ... copypaste fail without running gcc.
> -Daniel


Ok, that fixed, it; no more drm WARNING messages in dmesg.=20

Many thanks!
--=20
=46abio