Power regression found on 3.6-rc1+

[Micael]

I have a laptop running Arch Linux and found that upgrading from 3.5.6
to 3.6.2 had a huge impact on my battery life. Power consumption went
from ~10W to ~20W.
I initially thought it was a i915 driver problem since the CPU temps
went up and so I opened this bug:
https://bugzilla.kernel.org/show_bug.cgi?id=49031

However, as you can see if you read the bug's comments, after
bisecting this I found the culprit to be commit
71a83bd727cc31c5fe960c3758cb396267ff710e:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=71a83bd727cc31c5fe960c3758cb396267ff710e

--
Micael Dias
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