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Date:   Wed, 06 Dec 2017 21:54:27 +1100
From:   Michael Ellerman <>
To:     Shilpasri G Bhat <>,
Cc:     "Gautham R. Shenoy" <>,,,,,,
Subject: Re: [PATCH] cpufreq: powernv: Define methods to parse positive & negative pstates

Shilpasri G Bhat <> writes:

> From: "Gautham R. Shenoy" <>
> Pstates are 8bit values but on POWER8 they are negative and on POWER9
> they are positive. This patch adds helper routines to differentiate
> the sign to read the correct pstate value.

This sounds like it could be a bad bug, but I can't really tell from the
change log. What is the actual impact of not having this patch?

Should it have a Fixes/Cc-stable tag?


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