PROBLEM: cpuidle: Quickly notice prediction failure for repeat mode

[Mark Oteiza <mvoteiza@udel.edu>]

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Hi,

Commit 1485191 causes a regression on my hardware (laptop) manifesting
itself as increased power consumption when playing music on mpd using
pulseaudio.

I bisected to find 1485191.  I tested the commit it reverts (69a37bea),
and the commit prior 69a37bea, e34a00d6.  Here's a summary:

  status      sha   power  coretemp
  ---------------------------------
  BAD    14851912     14W       54C
  GOOD   228b3023      9W       47C
  GOOD   69a37bea   ~8.8W       47C
  GOOD   e45a00d6   ~9.3W       47C

I thought it was strange that it happens only with that combination of
audio software, so I was happy to patch out that changeset which was bad
for me.  Past 3.12 (now on 3.12.5), the issue persists and I'm not sure
I can easily merge anymore.

I attached some info I hope will be helpful.

Thanks,

-- 
Mark Oteiza

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??\x1f?\x06?{k\x1c?*m????X??\x1d???\x1c??n?w????u?(u?e??"?Mi?[\x1ej?b??lkm??[\x1ej?b?\b??O??o???y?????t??u????g???]???zjm?????.??.j\??f????jz%v???*'
??j????^r??z{f?x?jZ????zg????\x0e?.???j?????jx\x1e???.)??\x1a%?????@D!?H??DA\f=4??7??mu?M\x02\x11=??||??