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Message-ID: <87r2s8dt3w.fsf@concordia.ellerman.id.au> Date: Wed, 06 Dec 2017 21:54:27 +1100 From: Michael Ellerman <mpe@...erman.id.au> To: Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>, linux-pm@...r.kernel.org Cc: "Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>, viresh.kumar@...aro.org, rjw@...ysocki.net, linux-kernel@...r.kernel.org, huntbag@...ux.vnet.ibm.com, linuxppc-dev@...ts.ozlabs.org, akshay.adiga@...ux.vnet.ibm.com Subject: Re: [PATCH] cpufreq: powernv: Define methods to parse positive & negative pstates Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com> writes: > From: "Gautham R. Shenoy" <ego@...ux.vnet.ibm.com> > > 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? cheers
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