New location for generic headers?

[Sam Ravnborg <sam@ravnborg.org>]

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@linux.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