[PATCH 3/4] thermal: Use IS_ENABLED instead of #ifdef

From: Sascha Hauer
Date: Mon Jul 06 2015 - 03:46:34 EST


Use IS_ENABLED(CONFIG_THERMAL_EMULATION) to make the code more readable
and to get rid of the addtional #ifdef around the variable definitions
in thermal_zone_get_temp().

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/thermal/thermal_core.c | 45 ++++++++++++++++++------------------------
1 file changed, 19 insertions(+), 26 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index aa0a661..67296da 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -477,11 +477,9 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
int thermal_zone_get_temp(struct thermal_zone_device *tz, unsigned long *temp)
{
int ret = -EINVAL;
-#ifdef CONFIG_THERMAL_EMULATION
int count;
unsigned long crit_temp = -1UL;
enum thermal_trip_type type;
-#endif

if (!tz || IS_ERR(tz) || !tz->ops->get_temp)
goto exit;
@@ -489,25 +487,21 @@ int thermal_zone_get_temp(struct thermal_zone_device *tz, unsigned long *temp)
mutex_lock(&tz->lock);

ret = tz->ops->get_temp(tz, temp);
-#ifdef CONFIG_THERMAL_EMULATION
- if (!tz->emul_temperature)
- goto skip_emul;
-
- for (count = 0; count < tz->trips; count++) {
- ret = tz->ops->get_trip_type(tz, count, &type);
- if (!ret && type == THERMAL_TRIP_CRITICAL) {
- ret = tz->ops->get_trip_temp(tz, count, &crit_temp);
- break;
- }
- }

- if (ret)
- goto skip_emul;
+ if (IS_ENABLED(CONFIG_THERMAL_EMULATION) && tz->emul_temperature) {
+ for (count = 0; count < tz->trips; count++) {
+ ret = tz->ops->get_trip_type(tz, count, &type);
+ if (!ret && type == THERMAL_TRIP_CRITICAL) {
+ ret = tz->ops->get_trip_temp(tz, count,
+ &crit_temp);
+ break;
+ }
+ }

- if (*temp < crit_temp)
- *temp = tz->emul_temperature;
-skip_emul:
-#endif
+ if (!ret && *temp < crit_temp)
+ *temp = tz->emul_temperature;
+ }
+
mutex_unlock(&tz->lock);
exit:
return ret;
@@ -847,7 +841,6 @@ policy_show(struct device *dev, struct device_attribute *devattr, char *buf)
return sprintf(buf, "%s\n", tz->governor->name);
}

-#ifdef CONFIG_THERMAL_EMULATION
static ssize_t
emul_temp_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
@@ -873,7 +866,6 @@ emul_temp_store(struct device *dev, struct device_attribute *attr,
return ret ? ret : count;
}
static DEVICE_ATTR(emul_temp, S_IWUSR, NULL, emul_temp_store);
-#endif/*CONFIG_THERMAL_EMULATION*/

static ssize_t
sustainable_power_show(struct device *dev, struct device_attribute *devattr,
@@ -1802,11 +1794,12 @@ struct thermal_zone_device *thermal_zone_device_register(const char *type,
goto unregister;
}

-#ifdef CONFIG_THERMAL_EMULATION
- result = device_create_file(&tz->device, &dev_attr_emul_temp);
- if (result)
- goto unregister;
-#endif
+ if (IS_ENABLED(CONFIG_THERMAL_EMULATION)) {
+ result = device_create_file(&tz->device, &dev_attr_emul_temp);
+ if (result)
+ goto unregister;
+ }
+
/* Create policy attribute */
result = device_create_file(&tz->device, &dev_attr_policy);
if (result)
--
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/