Patch "Revert "ACPI / EC: Enable event freeze mode..." to fix a regression" has been added to the 4.9-stable tree

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 4.9-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:
revert-acpi-ec-enable-event-freeze-mode...-to-fix-a-regression.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 <[email protected]> know about it.

From: Lv Zheng <[email protected]>
Date: Wed, 12 Jul 2017 11:09:17 +0800
Subject: Revert "ACPI / EC: Enable event freeze mode..." to fix a regression

From: Lv Zheng <[email protected]>

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.

---
 drivers/acpi/ec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -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 [email protected] are

queue-4.9/revert-acpi-ec-enable-event-freeze-mode...-to-fix-a-regression.patch queue-4.9/acpi-ec-drop-ec-noirq-hooks-to-fix-a-regression.patch