linux-kernel - [PATCH v1] ACPI: thermal: Drop enabled flag from struct acpi_thermal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Tue, 25 Jul 2023 20:06:37 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux ACPI <linux-acpi@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Linux PM <linux-pm@...r.kernel.org>
Subject: [PATCH v1] ACPI: thermal: Drop enabled flag from struct acpi_thermal_active

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

The enabled field of struct acpi_thermal_active is only updated and never
read, so drop it along with the related code.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/acpi/thermal.c |    6 ------
 1 file changed, 6 deletions(-)

Index: linux-pm/drivers/acpi/thermal.c
===================================================================
--- linux-pm.orig/drivers/acpi/thermal.c
+++ linux-pm/drivers/acpi/thermal.c
@@ -121,7 +121,6 @@ struct acpi_thermal_active {
 	struct acpi_handle_list devices;
 	unsigned long temperature;
 	bool valid;
-	bool enabled;
 };
 
 struct acpi_thermal_trips {
@@ -1084,15 +1083,10 @@ static int acpi_thermal_resume(struct de
 		if (!tz->trips.active[i].valid)
 			break;
 
-		tz->trips.active[i].enabled = true;
 		for (j = 0; j < tz->trips.active[i].devices.count; j++) {
 			result = acpi_bus_update_power(
 					tz->trips.active[i].devices.handles[j],
 					&power_state);
-			if (result || (power_state != ACPI_STATE_D0)) {
-				tz->trips.active[i].enabled = false;
-				break;
-			}
 		}
 	}