[v8 PATCH 2/8]: cpuidle: implement a list based approach to register a set of idle routines.

[Andi Kleen]

Peter Zijlstra <a.p.zijlstra at chello.nl> writes:
>
> So does it make sense to have a set of sets?
>
> Why not integrate them all into one set to be ruled by this governor
> thing?

cpuidle is currently optional, that is why the two level hierarchy
is there so that you can still have simple idle selection without it.

% size drivers/cpuidle/*.o
   text    data     bss     dec     hex filename
   5514    1416      44    6974    1b3e drivers/cpuidle/built-in.o

Adding it unconditionally would add ~7k to everyone who wants idle functions.

I think making it unconditional would require putting it on a serious
diet first.

-Andi
-- 
ak at linux.intel.com -- Speaking for myself only.