[PATCH -mm2] CardServices compatibility layer

[Andrew Morton]

Dominik Brodowski <linux at dominikbrodowski.de> wrote:
>
> From -mm2 changelog:
> > Complete the removal of the usage of the CardServices API from drivers. 
> > It's a bit late for this, but apparantly the varargs usage in the API
> > cannot work correctly on x86_64 (at least).
> 
> ... as it's so late, let's add a compatibility layer which allows for
> CardServices usage as long as !x86_64. 
> 

That seems like a good idea, but I'll need help from rmk, dhinds, etc on
understanding whether it is a desirable thing.

How does this patch get tested?   Is it tested?

Note the "(at least)".  I think other architectures have a similar problem
- I'm not sure what the complete list is.