Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751675AbdFIMY4 (ORCPT ); Fri, 9 Jun 2017 08:24:56 -0400 Received: from mail-it0-f51.google.com ([209.85.214.51]:36534 "EHLO mail-it0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751629AbdFIMYy (ORCPT ); Fri, 9 Jun 2017 08:24:54 -0400 MIME-Version: 1.0 In-Reply-To: References: From: "Rafael J. Wysocki" Date: Fri, 9 Jun 2017 14:24:53 +0200 X-Google-Sender-Auth: lN1Ij3Ci9kQxNqn9TxiByCYVoPg Message-ID: Subject: Re: [PATCH 0/3] cpufreq: schedutil: Fix 4.12 regressions To: Viresh Kumar Cc: Rafael Wysocki , Lists linaro-kernel , Linux PM , Linux Kernel Mailing List , Vincent Guittot , Juri Lelli , Ingo Molnar , Peter Zijlstra , Patrick Bellasi , John , Srinivas Pandruvada , Joel Fernandes , Morten Rasmussen Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 907 Lines: 26 Hi, On Fri, Jun 9, 2017 at 12:15 PM, Viresh Kumar wrote: > Hi Rafael, > > I have identified some regressions with the schedutil governor which > happen due to one of your patches that got merged in 4.12-rc1. > > This series fixes all the drivers which provide a ->target_index() > callback but doesn't fix the drivers which provide ->target() callback. > > Such platforms need to implement the ->resolve_freq() callback in order > to get this fixed and I only had hardware for testing intel_pstate, > which I fixed in this series. > > I am wondering if there is another way to fix this issue (than what I > tried) or if we should revert the offending commit (39b64aa1c007) and > look for other solutions. To my eyes, patch [1/3] fixes the problem and then the remaining ones deal with the issues resulting from that. I'd rather revert and revisit at this point. Thanks, Rafael