Re: [RFC] possible killing of boilerplate headers by asm-generic reorg

[Al Viro <viro@ZenIV.linux.org.uk>]

On Thu, Aug 11, 2011 at 03:16:43PM +0200, Arnd Bergmann wrote:
> On Wednesday 10 August 2011, Linus Torvalds wrote:
> > Or you can do it by creating the default file, and then editing EVERY
> > SINGLE ARCHITECTURE. Which just sucks.
> > 
> > This has come up before, for similar situations - wanting to implement
> > optional architecture capabilities without having to worry about
> > architectures that don't support it.
> 
> If you mostly care about new extensions, we can ignore all the
> user ABI headers for now and find a solution that just deals with
> the kernel internal ones.
> 
> I think the easiest way to do that would be to move all non-exported
> headers from include/asm-generic to include/asm. Since it's only about
> internel users then, we can simply use "#include_next <asm/foo.h>"
> to refer to them from arch-specific files that want to reuse them
> only partially and also add some of their own definitions.

Aiiieee...  Please, please, no - include_next is a very ugly idea ;-/
Let's avoid it, if at all possible.