linux-kernel - Re: [RFC 4/5] drm: Introduce drm_set

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Message-ID: <20140423133751.GA28031@ulmo>
Date:	Wed, 23 Apr 2014 15:37:53 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	dri-devel@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org,
	Russell King <rmk+kernel@....linux.org.uk>
Subject: Re: [RFC 4/5] drm: Introduce drm_set_unique()

On Wed, Apr 23, 2014 at 10:40:57AM +0200, Daniel Vetter wrote:
> On Wed, Apr 23, 2014 at 09:17:16AM +0200, Thierry Reding wrote:
> > On Tue, Apr 22, 2014 at 05:48:07PM +0200, Daniel Vetter wrote:
> > > On Tue, Apr 22, 2014 at 05:09:32PM +0200, Thierry Reding wrote:
> > > > From: Thierry Reding <treding@...dia.com>
> > > > 
> > > > Add a helper function that allows drivers to statically set the unique
> > > > name of the device. This will allow platform and USB drivers to get rid
> > > > of their DRM bus implementations and directly use drm_dev_alloc() and
> > > > drm_dev_register().
> > > > 
> > > > Signed-off-by: Thierry Reding <treding@...dia.com>
> > > > ---
> > > >  drivers/gpu/drm/drm_ioctl.c | 37 +++++++++++++++++++++++++++++++------
> > > >  drivers/gpu/drm/drm_stub.c  |  1 +
> > > >  include/drm/drmP.h          |  3 +++
> > > >  3 files changed, 35 insertions(+), 6 deletions(-)
> > > > 
> > > > diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
> > > > index 2dd3a6d8382b..371db3bef60c 100644
> > > > --- a/drivers/gpu/drm/drm_ioctl.c
> > > > +++ b/drivers/gpu/drm/drm_ioctl.c
> > > > @@ -42,6 +42,20 @@
> > > >  #include <asm/mtrr.h>
> > > >  #endif
> > > >  
> > > > +int drm_set_unique(struct drm_device *dev, const char *fmt, ...)
> > > 
> > > Can you please add a bit of kerneldoc for this? drm_ioctl.c isn't yet
> > > pulled into the drm reference docbook, but better to have it there
> > > already.
> > 
> > On second thought, wouldn't this be better located in drm_stub.c? It
> > isn't really related to the IOCTL code except that one of the IOCTLs now
> > uses the information set by this function. Logically I think it belongs
> > with the likes of drm_dev_alloc() and drm_dev_register().
> 
> Yeah makes sense. Tbh the entire split-up of these core drm functions is
> still a bit messy, so I don't mind if it's a bit inconsistent really. We
> can do the suffling when someone bothers with the kerneldoc for all of
> them and pulls it into the drm docbook.

I ended up doing exactly that when I wrote the drm_set_unique() docbook
pieces and I've sent out patches based on top of v2 of this patch just
now.

Thierry

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