[PATCH] ARM: Allow modules to read cpu_logical_map

[Russell King - ARM Linux]

On Fri, Feb 08, 2013 at 12:19:40PM +0000, Dave Martin wrote:
> It is reasonable for loadable modules to be CPU topology aware
> (particular examples include cpufreq and cpuidle drivers).
> 
> This patch exports a new function cpu_get_hwid(cpu) to provide
> suitable read-only access outside vmlinux.

And we have an export with no user... where are the patches which
illustrate its usage?