linux-kernel - [PATCH v1 1/1] thermal: intel: intel_soc_dts_iosf: Switch to use find_first_zero

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Message-Id: <20210618153451.89246-1-andriy.shevchenko@linux.intel.com>
Date:   Fri, 18 Jun 2021 18:34:51 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>
Subject: [PATCH v1 1/1] thermal: intel: intel_soc_dts_iosf: Switch to use find_first_zero_bit()

Switch to use find_first_zero_bit() instead of open-coded variant.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/thermal/intel/intel_soc_dts_iosf.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index 4f1a2f7c016c..342b0bb5a56d 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
@@ -350,13 +350,14 @@ int intel_soc_dts_iosf_add_read_only_critical_trip(
 	int i, j;
 
 	for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) {
-		for (j = 0; j < sensors->soc_dts[i].trip_count; ++j) {
-			if (!(sensors->soc_dts[i].trip_mask & BIT(j))) {
-				return update_trip_temp(&sensors->soc_dts[i], j,
-					sensors->tj_max - critical_offset,
-					THERMAL_TRIP_CRITICAL);
-			}
-		}
+		struct intel_soc_dts_sensor_entry *entry = &sensors->soc_dts[i];
+		int temp = sensors->tj_max - critical_offset;
+		unsigned long count = entry->trip_count;
+		unsigned long mask = entry->trip_mask;
+
+		j = find_first_zero_bit(&mask, count);
+		if (j < count)
+			return update_trip_temp(entry, j, temp, THERMAL_TRIP_CRITICAL);
 	}
 
 	return -EINVAL;
-- 
2.30.2