S390 vs S390x, was Re: [kbuild-devel] Re: [patch] kernel config 3/N - move sound into drivers/media

[Christoph Hellwig]

On Wed, Aug 14, 2002 at 12:56:27PM +0200, Arnd Bergmann wrote:
> It's not logical, but it tends to help because it's what's meant most
> of the time. I don't know a single place in the kernel where you want
> to test for (CONFIG_ARCH_S390 && !CONFIG_ARCH_S390X).

BTW, ho much differences are between arch/s390 and arch/s390x?  Is there
any chance it could use the same #ifdef __LP64__ trick parisc uses for
its 32 and 64bit versions?  so far every file I've looked at was duplicated
exactly in s390 and s390x.