Comment # 26 on bug 925961 from Jean Delvare

Rui, thanks for looking into this.

I am not familiar enough with the thermal subsystem to review your patches.
Also I don't own an Acer laptop myself so I can't test if they would solve the
problem that was reported here. But I have to say I have some doubts that they
would actually help. My understanding of the problem is that the acerhdf wanted
to be called back even when the step_wise governor considered that no change in
cooling was needed, and the optimization broke that mechanism/assumption.

If you believe that the problem would actually be solved by your patches,
please explain how, as it isn't obvious to me. This is mostly theoretical
though, as I don't think that your 3 patches qualify for stable kernels. They
are large and somewhat intrusive, so they could come with regressions or side
effects. I wouldn't take the risk of applying them to the openSUSE 13.2 kernel.
Reverting the optimization as I did feels much safer.

I did send a patch reverting 178c2490b99f898efc06d1ad75cadc84f13021a6 to the
stable kernel mailing list, with suggestion to apply it to kernel branches
v3.12 to v3.17. You were Cc'd.