diff mbox series

[RFC,7/9] thermal/acpi: Simplifify the condition check

Message ID 20221004172658.2302511-8-daniel.lezcano@linaro.org (mailing list archive)
State RFC, archived
Headers show
Series [RFC,1/9] thermal/acpi: Remove the intermediate acpi_thermal_trip structure | expand

Commit Message

Daniel Lezcano Oct. 4, 2022, 5:26 p.m. UTC 
The condition:

if ((flag == ACPI_TRIPS_INIT) || ((flag & ACPI_TRIPS_ACTIVE))

and on the other side: ACPI_TRIPS_INIT (... | ACPI_TRIPS_ACTIVE)

So if the first predicate is true, the second is also true.

The 'valid' flag for the trip point is also checked before, so it is
pointless to redo the same check again and again.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/acpi/thermal.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index e62381561255..116e5cf19c5d 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -323,6 +323,9 @@  static int acpi_thermal_trips_update_passive(struct acpi_thermal *tz, int flag)
 	int valid = 0;
 
 	valid = tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid;
+	if (!valid)
+		return 0;
+
 	if (psv == -1) {
 		status = AE_SUPPORT;
 	} else if (psv > 0) {
@@ -401,13 +404,16 @@  static int acpi_thermal_trips_update_active(struct acpi_thermal *tz, int flag)
 
 	for (i = ACPI_THERMAL_TRIP_ACTIVE; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
 		char name[5] = { '_', 'A', 'C', ('0' + i), '\0' };
+
 		valid = tz->trips[i].flags.valid;
 
 		if (act == -1)
 			break; /* disable all active trip points */
 
-		if ((flag == ACPI_TRIPS_INIT) || ((flag & ACPI_TRIPS_ACTIVE) &&
-			tz->trips[i].flags.valid)) {
+		if (!tz->trips[i].flags.valid)
+			continue;
+		
+		if (flag & ACPI_TRIPS_ACTIVE)  {
 			status = acpi_evaluate_integer(tz->device->handle,
 							name, NULL, &tmp);
 			if (ACPI_FAILURE(status)) {
@@ -437,7 +443,7 @@  static int acpi_thermal_trips_update_active(struct acpi_thermal *tz, int flag)
 		}
 
 		name[2] = 'L';
-		if ((flag & ACPI_TRIPS_DEVICES) && tz->trips[i].flags.valid ) {
+		if (flag & ACPI_TRIPS_DEVICES) {
 			memset(&devices, 0, sizeof(struct acpi_handle_list));
 			status = acpi_evaluate_reference(tz->device->handle,
 						name, NULL, &devices);
@@ -456,6 +462,7 @@  static int acpi_thermal_trips_update_active(struct acpi_thermal *tz, int flag)
 				ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "device");
 			}
 		}
+
 		if ((flag & ACPI_TRIPS_ACTIVE) || (flag & ACPI_TRIPS_DEVICES))
 			if (valid != tz->trips[i].flags.valid)
 				ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "state");
@@ -497,8 +504,7 @@  static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 	}
 
 	/* Passive (optional) */
-	if (((flag & ACPI_TRIPS_PASSIVE) && tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid) ||
-		(flag == ACPI_TRIPS_INIT)) {
+	if (flag & ACPI_TRIPS_PASSIVE) {
 		acpi_thermal_trips_update_passive(tz, flag);
 	}