From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51050 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932304AbdC1LHC (ORCPT ); Tue, 28 Mar 2017 07:07:02 -0400 Subject: Patch "cpufreq: Restore policy min/max limits on CPU online" has been added to the 4.4-stable tree To: viresh.kumar@linaro.org, gregkh@linuxfoundation.org, rafael.j.wysocki@intel.com Cc: , From: Date: Tue, 28 Mar 2017 13:05:23 +0200 Message-ID: <149069912319193@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: Restore policy min/max limits on CPU online to the 4.4-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-restore-policy-min-max-limits-on-cpu-online.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From ff010472fb75670cb5c08671e820eeea3af59c87 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 21 Mar 2017 11:36:06 +0530 Subject: cpufreq: Restore policy min/max limits on CPU online From: Viresh Kumar commit ff010472fb75670cb5c08671e820eeea3af59c87 upstream. On CPU online the cpufreq core restores the previous governor (or the previous "policy" setting for ->setpolicy drivers), but it does not restore the min/max limits at the same time, which is confusing, inconsistent and real pain for users who set the limits and then suspend/resume the system (using full suspend), in which case the limits are reset on all CPUs except for the boot one. Fix this by making cpufreq_online() restore the limits when an inactive policy is brought online. The commit log and patch are inspired from Rafael's earlier work. Reported-by: Rafael J. Wysocki Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/cpufreq/cpufreq.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1186,6 +1186,9 @@ static int cpufreq_online(unsigned int c for_each_cpu(j, policy->related_cpus) per_cpu(cpufreq_cpu_data, j) = policy; write_unlock_irqrestore(&cpufreq_driver_lock, flags); + } else { + policy->min = policy->user_policy.min; + policy->max = policy->user_policy.max; } if (cpufreq_driver->get && !cpufreq_driver->setpolicy) { Patches currently in stable-queue which might be from viresh.kumar@linaro.org are queue-4.4/cpufreq-restore-policy-min-max-limits-on-cpu-online.patch