Re: [PATCH 1/6] drm: include drm_device.h from drm_legacy.h

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On Fri, Dec 28, 2018 at 10:23:00AM +0200, Jani Nikula wrote:
> On Thu, 27 Dec 2018, Daniel Vetter <daniel@xxxxxxxx> wrote:
> > On Thu, Dec 27, 2018 at 05:04:20PM +0100, Daniel Vetter wrote:
> >> On Thu, Dec 27, 2018 at 02:56:36PM +0200, Jani Nikula wrote:
> >> > Make it easier to drop drmP.h includes.
> >> > 
> >> > Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
> >> > Cc: Daniel Vetter <daniel@xxxxxxxx>
> >> > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> >> > Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> >> > ---
> >> >  include/drm/drm_legacy.h | 1 +
> >> >  1 file changed, 1 insertion(+)
> >> > 
> >> > diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h
> >> > index 8fad66f88e4f..743d7e70c896 100644
> >> > --- a/include/drm/drm_legacy.h
> >> > +++ b/include/drm/drm_legacy.h
> >> > @@ -2,6 +2,7 @@
> >> >  #define __DRM_DRM_LEGACY_H__
> >> >  
> >> >  #include <drm/drm_auth.h>
> >> > +#include <drm/drm_device.h>
> >> 
> >> From a quick look, shouldn't a
> >> 
> >> struct drm_device;
> >> 
> >> forward decl be enough? You might need a pile more forward decl, but
> >> that's all drm_device.h seems to pull in that drm_legacy.h needs.
> >
> > Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx> with the forward decl
> > (assuming it all works out).
> 
> The forward declaration is not enough, there's a &dev->maplist reference
> in the static inline drm_legacy_findmap().

Missed that, despite that I tried checking for static inlines. And a
static inline for a O(n) lookup ... tempted to just deinline that.

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx> on either your v1 or a
patch that deinlines the offending function and just uses a forward decl.

Cheers, Daniel

> 
> BR,
> Jani.
> 
> > -Daniel
> >
> >> -Daniel
> >> >  
> >> >  /*
> >> >   * Legacy driver interfaces for the Direct Rendering Manager
> >> > -- 
> >> > 2.11.0
> >> > 
> >> 
> >> -- 
> >> Daniel Vetter
> >> Software Engineer, Intel Corporation
> >> http://blog.ffwll.ch
> 
> -- 
> Jani Nikula, Intel Open Source Graphics Center

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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