From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:49160 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751785AbdGYEkP (ORCPT ); Tue, 25 Jul 2017 00:40:15 -0400 Subject: Patch "Revert "ACPI / EC: Enable event freeze mode..." to fix a regression" has been added to the 4.12-stable tree To: lv.zheng@intel.com, gdamjan@gmail.com, gregkh@linuxfoundation.org, rafael.j.wysocki@intel.com Cc: , From: Date: Mon, 24 Jul 2017 21:39:54 -0700 Message-ID: <1500957594245207@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 Revert "ACPI / EC: Enable event freeze mode..." to fix a regression to the 4.12-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: revert-acpi-ec-enable-event-freeze-mode...-to-fix-a-regression.patch and it can be found in the queue-4.12 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 9c40f956ce9b331493347d1b3cb7e384f7dc0581 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 12 Jul 2017 11:09:17 +0800 Subject: Revert "ACPI / EC: Enable event freeze mode..." to fix a regression From: Lv Zheng commit 9c40f956ce9b331493347d1b3cb7e384f7dc0581 upstream. On Lenovo ThinkPad X1 Carbon - the 5th Generation, enabling an earlier EC event freezing timing causes acpitz-virtual-0 to report a stuck 48C temparature. And with EC firmware revisioned as 1.14, without reverting back to old EC event freezing timing, the fan still blows up after a system resume. This reverts the culprit change so that the regression can be fixed without upgrading the EC firmware. Fixes: d30283057ecd (ACPI / EC: Enable event freeze mode to improve event handling) Link: https://bugzilla.kernel.org/show_bug.cgi?id=191181#c168 Tested-by: Damjan Georgievski Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/ec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -147,7 +147,7 @@ static unsigned int ec_storm_threshold module_param(ec_storm_threshold, uint, 0644); MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm"); -static bool ec_freeze_events __read_mostly = true; +static bool ec_freeze_events __read_mostly = false; module_param(ec_freeze_events, bool, 0644); MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume"); Patches currently in stable-queue which might be from lv.zheng@intel.com are queue-4.12/revert-acpi-ec-enable-event-freeze-mode...-to-fix-a-regression.patch queue-4.12/acpi-ec-drop-ec-noirq-hooks-to-fix-a-regression.patch