[PATCH] export new __io{re,un}map_at() symbols

[Paul Mackerras]

Olof Johansson writes:

> electra_cf uses it, that driver is currently in -mm including below
> update to use benh's rewritten interfaces:
> 
> http://patchwork.ozlabs.org/linuxppc/patch?id=13237
> 
> It gets the effective addresses to use out of the device tree.

Huh?  What does firmware (or the device tree) know about how the
kernel uses effective addresses?

Paul.