linux-kernel - [PATCH 5.5 20/65] Revert "ACPI: EC: Do not clear boot_ec_is_ecdt in acpi_ec

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Date:   Mon, 20 Apr 2020 14:38:24 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Toralf Förster <toralf.foerster@....de>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.5 20/65] Revert "ACPI: EC: Do not clear boot_ec_is_ecdt in acpi_ec_add()"

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

This reverts commit e8eab1acd6cdf142fb93c47201a1ae1f3dcbfc5f which is
commit 65a691f5f8f0bb63d6a82eec7b0ffd193d8d8a5f upstream.

Rafael writes:
	It has not been marked for -stable or otherwise requested to be
	included AFAICS.  Also it depends on other mainline commits that
	have not been included into 5.6.5.

Reported-by: Toralf Förster <toralf.foerster@....de>
Reported-by: Rafael J. Wysocki <rafael@...nel.org>
Cc: Sasha Levin <sashal@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/acpi/ec.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1654,6 +1654,7 @@ static int acpi_ec_add(struct acpi_devic
 
 		if (boot_ec && ec->command_addr == boot_ec->command_addr &&
 		    ec->data_addr == boot_ec->data_addr) {
+			boot_ec_is_ecdt = false;
 			/*
 			 * Trust PNP0C09 namespace location rather than
 			 * ECDT ID. But trust ECDT GPE rather than _GPE
@@ -1673,12 +1674,9 @@ static int acpi_ec_add(struct acpi_devic
 
 	if (ec == boot_ec)
 		acpi_handle_info(boot_ec->handle,
-				 "Boot %s EC initialization complete\n",
+				 "Boot %s EC used to handle transactions and events\n",
 				 boot_ec_is_ecdt ? "ECDT" : "DSDT");
 
-	acpi_handle_info(ec->handle,
-			 "EC: Used to handle transactions and events\n");
-
 	device->driver_data = ec;
 
 	ret = !!request_region(ec->data_addr, 1, "EC data");