From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:39114 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753012AbeBSQuA (ORCPT ); Mon, 19 Feb 2018 11:50:00 -0500 Subject: Patch "cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin" has been added to the 4.9-stable tree To: shilpa.bhat@linux.vnet.ibm.com, gregkh@linuxfoundation.org, rafael.j.wysocki@intel.com, stable@vger.kernel.org, viresh.kumar@linaro.org, wangat@tw.ibm.com Cc: , From: Date: Mon, 19 Feb 2018 17:45:07 +0100 Message-ID: <151905870793144@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: cpufreq-powernv-dont-assume-distinct-pstate-values-for-nominal-and-pmin.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 3fa4680b860bf48b437d6a2c039789c4abe202ae Mon Sep 17 00:00:00 2001 From: Shilpasri G Bhat Date: Fri, 12 Jan 2018 12:43:53 +0530 Subject: cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin From: Shilpasri G Bhat commit 3fa4680b860bf48b437d6a2c039789c4abe202ae upstream. Some OpenPOWER boxes can have same pstate values for nominal and pmin pstates. In these boxes the current code will not initialize 'powernv_pstate_info.min' variable and result in erroneous CPU frequency reporting. This patch fixes this problem. Fixes: 09ca4c9b5958 (cpufreq: powernv: Replacing pstate_id with frequency table index) Reported-by: Alvin Wang Signed-off-by: Shilpasri G Bhat Acked-by: Viresh Kumar Cc: 4.8+ # 4.8+ Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/cpufreq/powernv-cpufreq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -260,9 +260,9 @@ static int init_powernv_pstates(void) if (id == pstate_max) powernv_pstate_info.max = i; - else if (id == pstate_nominal) + if (id == pstate_nominal) powernv_pstate_info.nominal = i; - else if (id == pstate_min) + if (id == pstate_min) powernv_pstate_info.min = i; } Patches currently in stable-queue which might be from shilpa.bhat@linux.vnet.ibm.com are queue-4.9/cpufreq-powernv-dont-assume-distinct-pstate-values-for-nominal-and-pmin.patch