[PATCH] powerpc/mm: Use jump label to speed up radix_enabled check

[Benjamin Herrenschmidt]

On Wed, 2016-04-27 at 11:00 +1000, Balbir Singh wrote:
> Just basic testing across CPUs with various mm features 
> enabled/disabled. Just for sanity

I still don't think it's worth scattering the change. Either the jump
label works or it doesn't ... The only problem is make sure we identify
all the pre-boot ones but that's about it.

Cheers,
Ben.