thermal/drivers/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@linux.intel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210618153451.89246-1-andriy.shevchenko@linux.intel.com

diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index 4f1a2f7..342b0bb 100644 (file)
--- 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;