[PATCH] ARM: clean-up common multi-platform kconfig options

[arnd@arndb.de (Arnd Bergmann)]

On Saturday 07 December 2013, Russell King - ARM Linux wrote:
> On Fri, Dec 06, 2013 at 05:41:33PM +0100, Arnd Bergmann wrote:
> > The above code can already be simplified a lot, since the pre-v6 and
> > pre-v6k v6 cases are dead code. There are comments in Kconfig like this:
> > 
> > config TLS_REG_EMUL
> >         bool
> >         select NEED_KUSER_HELPERS
> >         help
> >           An SMP system using a pre-ARMv6 processor (there are apparently
> >           a few prototypes like that in existence) and therefore access to
> >           that required register must be emulated.
> 
> Arnd,
> 
> If you look at where this is selected, it's selected for SMP on pre-ARMv6
> (okay, I doubt anyone cares about that) _or_ for uclinux on pre-ARMv6
> since pre-ARMv6 can't do the vectors page trick.

Right, I noticed the part about NOMMU later when I read through the code path
again.

> So getting rid of the above takes away __thread support from userland
> uclinux on these CPUs.  Is that something you really want to do?

No, not at all, sorry for the confusion.

	Arnd