linux-kernel - [PATCH v1 2/4] ACPI: thermal: Adjust event notification routine

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Message-ID: <5035876.GXAFRqVoOG@rafael.j.wysocki>
Date: Wed, 10 Dec 2025 15:43:11 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Linux ACPI <linux-acpi@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Linux PM <linux-pm@...r.kernel.org>,
 Armin Wolf <w_armin@....de>, Hans de Goede <hansg@...nel.org>
Subject: [PATCH v1 2/4] ACPI: thermal: Adjust event notification routine

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

Adjust acpi_thermal_notify() to cast its "data" argument to a struct
acpi_thermal pointer istead of a struct acpi_device one, which allows
the use of acpi_driver_data() to be limited and will facilitate
subsequent changes.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/acpi/thermal.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -670,8 +670,7 @@ static void acpi_thermal_unregister_ther

 static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
 {
-	struct acpi_device *device = data;
-	struct acpi_thermal *tz = acpi_driver_data(device);
+	struct acpi_thermal *tz = data;

 	if (!tz)
 		return;
@@ -685,8 +684,8 @@ static void acpi_thermal_notify(acpi_han
 		acpi_thermal_trips_update(tz, event);
 		break;
 	default:
-		acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n",
-				  event);
+		acpi_handle_debug(tz->device->handle,
+				  "Unsupported event [0x%x]\n", event);
 		break;
 	}
 }
@@ -881,7 +880,7 @@ static int acpi_thermal_add(struct acpi_
 		acpi_device_bid(device), deci_kelvin_to_celsius(tz->temp_dk));

 	result = acpi_dev_install_notify_handler(device, ACPI_DEVICE_NOTIFY,
-						 acpi_thermal_notify, device);
+						 acpi_thermal_notify, tz);
 	if (result)
 		goto flush_wq;