linux-kernel - New location for generic headers?

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Message-ID: <20081203120110.GA2822@uranus.ravnborg.org>
Date:	Wed, 3 Dec 2008 13:01:10 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Andi Kleen <andi@...stfloor.org>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: New location for generic headers?

On Wed, Dec 03, 2008 at 11:40:01AM +0100, Arnd Bergmann wrote:
> On Wednesday 03 December 2008, Andi Kleen wrote:
> > Clean up namespace in kmap_types.h
> > 
> > During debugging I often use custom "D" macros. But I ran
> > into a name space conflict with kmap_types.h which also defines a D macro.
> > Rename the kmap_types.h one to KMAPD.
> > 
> > No semantical changes.
> > 
> > Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> 
> The patch looks ok, but it seems wrong to do this only on one architecture,
> because kmap_types.h is mostly identical across all architectures.
> 
> I'm working on patches to consolidate a lot of generic headers, why not
> add this in a generic way and make x86 use that version?

Should we try to get rid of all those silly:
#include <asm-generic/foo.h>
files we have in arch/$ARCH/include/asm?

We could for example add include/generic/ last in the search path.
Or we could add the files in include/asm and add that last in the
search path.

Then if we do not find <asm/foo.h> in arch/$ARCH/include/asm/
then we search include/asm.

Before we can do this we need to get rid of the last users of
include/asm-$ARCH - but we are almost there.
Only m68k seems to require some effort.

	Sam
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