linux-kernel - [PATCH v2 7/7] ACPI: thermal: Drop struct acpi_thermal

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Date:   Sun, 04 Jun 2023 14:21:13 +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>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Michal Wilczynski <michal.wilczynski@...el.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH v2 7/7] ACPI: thermal: Drop struct acpi_thermal_flags

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

Drop struct acpi_thermal_flags which is not really used (only one
flag in it is ever set, but it is never read) and call
acpi_execute_simple_method() directly to evaluate _SCP instead of
using acpi_thermal_set_cooling_mode(), which has no callers after
that change, so drop it.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---

v1 -> v2: New patch

---
 drivers/acpi/thermal.c |   24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

Index: linux-pm/drivers/acpi/thermal.c
===================================================================
--- linux-pm.orig/drivers/acpi/thermal.c
+++ linux-pm/drivers/acpi/thermal.c
@@ -129,12 +129,6 @@ struct acpi_thermal_trips {
 	struct acpi_thermal_active active[ACPI_THERMAL_MAX_ACTIVE];
 };
 
-struct acpi_thermal_flags {
-	u8 cooling_mode:1;	/* _SCP */
-	u8 devices:1;		/* _TZD */
-	u8 reserved:6;
-};
-
 struct acpi_thermal {
 	struct acpi_device *device;
 	acpi_bus_id name;
@@ -142,7 +136,6 @@ struct acpi_thermal {
 	unsigned long last_temperature;
 	unsigned long polling_frequency;
 	volatile u8 zombie;
-	struct acpi_thermal_flags flags;
 	struct acpi_thermal_trips trips;
 	struct acpi_handle_list devices;
 	struct thermal_zone_device *thermal_zone;
@@ -197,18 +190,6 @@ static int acpi_thermal_get_polling_freq
 	return 0;
 }
 
-static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
-{
-	if (!tz)
-		return -EINVAL;
-
-	if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
-						    "_SCP", mode)))
-		return -ENODEV;
-
-	return 0;
-}
-
 static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 {
 	acpi_status status;
@@ -926,9 +907,8 @@ static int acpi_thermal_get_info(struct
 		return result;
 
 	/* Set the cooling mode [_SCP] to active cooling (default) */
-	result = acpi_thermal_set_cooling_mode(tz, ACPI_THERMAL_MODE_ACTIVE);
-	if (!result)
-		tz->flags.cooling_mode = 1;
+	acpi_execute_simple_method(tz->device->handle, "_SCP",
+				   ACPI_THERMAL_MODE_ACTIVE);
 
 	/* Get default polling frequency [_TZP] (optional) */
 	if (tzp)