linux-kernel - Re: Linux 4.1 WARNING in drm

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Message-ID: <20150623094847.GR25769@phenom.ffwll.local>
Date:	Tue, 23 Jun 2015 11:48:47 +0200
From:	Daniel Vetter <daniel@...ll.ch>
To:	Daniel Stone <daniel@...ishbar.org>
Cc:	Fabio Coatti <fabio.coatti@...il.com>,
	David Airlie <airlied@...ux.ie>,
	dri-devel <dri-devel@...ts.freedesktop.org>,
	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: Linux 4.1 WARNING in drm_ioctl.c

On Tue, Jun 23, 2015 at 08:27:13AM +0100, Daniel Stone wrote:
> Hi,
> 
> On 23 June 2015 at 07:39, Daniel Vetter <daniel@...ll.ch> wrote:
> > Which drm driver are you using? I didn't spot anything in your module list
> > but might have missed it. Booting with drm.debug=0xe and grabbing dmesg
> > will tell us for sure.
> 
> That'd be vgem.

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..b491fb32cddb 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)
 		goto out;
 	}
 
+	drm_dev_set_unique(drm, "vgem");
+
 	ret  = drm_dev_register(vgem_device, 0);
 
 	if (ret)
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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