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Date:	Thu, 17 Jul 2014 12:50:07 +0200
From:	Arnd Bergmann <>
To:	Sam Ravnborg <>
Cc:	lkml <>,
	linux-arch <>
Subject: Re: [PATCH 38/38] asm-generic: introduc Kbuild.generic

On Thursday 17 July 2014 12:38:15 Sam Ravnborg wrote:
> > * We could improve the situation if the definition of this list is
> >   changed so we only generate the generic header files that are not
> >   already provided by an architecture. If we do this, we can consolidate
> >   a lot more here, which is nice, but the cost would be equivalent to
> >   another level of indirection and a potential for subtle bugs if it's
> >   not done very careful.
> I think this is the way to go - and will try to give it a spin.
> Something along these lines:
> include/asm-generic/Kbuild.asm will include a list of all header files
> that shall be present for any architecture and may come from asm-generic.
> If the architecture provide there own file - good.
> If the architecture do not provide their own file => create wrapper.
> The arch provided header file comes first in the search path,
> so if a wrapper was generated and later a dedicated file is added
> then we will use the dedicated file and not the wrapper that points
> back to asm-generic.
> The same logic applies for uapi/asm-generic as well.
> I will try to come up with an implementation of this,
> then we can see if this flys.

Ok, sounds good. Thanks!

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