Re: [PATCH] DRM depends on ???

[Kyle Moffett <mrmacman_g4@mac.com>]

On May 28, 2005, at 17:50:05, Dave Jones wrote:
> On Sat, May 28, 2005 at 11:39:00PM +0200, Geert Uytterhoeven wrote:
> >  config DRM
> >      tristate "Direct Rendering Manager (XFree86 4.1.0 and higher  
> > DRI support)"
> > -    depends on AGP || AGP=n
> > +    depends on (AGP || AGP=n) && PCI
>
> The whole dependancy seems like nonsense to me.
> I think
>
>     depends on PCI
>
> is a lot more sensible.

I think the original reasoning was something like this:

If DRM is built-in, then AGP _must_ be built-in or not included at  
all, modular
won't work.  If DRM is modular or not built, then AGP may be built- 
in, modular,
or not built at all.

The "depends on AGP || AGP=n" means that if DRM=y, then AGP=y or  
AGP=n, and if
DRM=m or DRM=n, then AGP=y or AGP=m or AGP=n.

Yes it's unclear and yes it should probably be documented in a  
comment somewhere.



Cheers,
Kyle Moffett

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