From: Guenter Roeck <patchwork@patchwork.roeck-us.net>
To: lm-sensors@vger.kernel.org
Subject: [lm-sensors] [PATCH v3 10/25] hwmon: (it87) Use is_visible for temperature sensors
Date: Wed, 27 Jan 2016 02:03:34 +0000 [thread overview]
Message-ID: <1453860229-23614-11-git-send-email-patchwork@patchwork.roeck-us.net> (raw)
From: Guenter Roeck <linux@roeck-us.net>
Simplify code and reduce object size by more than 200 bytes on x86_64.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
drivers/hwmon/it87.c | 87 ++++++++++++++++++++++------------------------------
1 file changed, 36 insertions(+), 51 deletions(-)
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 81c11d1d67e2..c7feea9a6f80 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -1834,40 +1834,57 @@ static const struct attribute_group it87_group_in = {
.is_visible = it87_in_is_visible,
};
-static struct attribute *it87_attributes_temp[3][6] = {
+static umode_t it87_temp_is_visible(struct kobject *kobj,
+ struct attribute *attr, int index)
{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct it87_data *data = dev_get_drvdata(dev);
+ int i = index / 7; /* temperature index */
+ int a = index % 7; /* attribute index */
+
+ if (!(data->has_temp & (1 << i)))
+ return 0;
+
+ if (a = 5 && !has_temp_offset(data))
+ return 0;
+
+ if (a = 6 && !data->has_beep)
+ return 0;
+
+ return attr->mode;
+}
+
+static struct attribute *it87_attributes_temp[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_type.dev_attr.attr,
&sensor_dev_attr_temp1_alarm.dev_attr.attr,
- NULL
-} , {
+ &sensor_dev_attr_temp1_offset.dev_attr.attr, /* 5 */
+ &sensor_dev_attr_temp1_beep.dev_attr.attr, /* 6 */
+
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_type.dev_attr.attr,
&sensor_dev_attr_temp2_alarm.dev_attr.attr,
- NULL
-} , {
+ &sensor_dev_attr_temp2_offset.dev_attr.attr,
+ &sensor_dev_attr_temp2_beep.dev_attr.attr,
+
&sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_type.dev_attr.attr,
&sensor_dev_attr_temp3_alarm.dev_attr.attr,
- NULL
-} };
+ &sensor_dev_attr_temp3_offset.dev_attr.attr,
+ &sensor_dev_attr_temp3_beep.dev_attr.attr,
-static const struct attribute_group it87_group_temp[3] = {
- { .attrs = it87_attributes_temp[0] },
- { .attrs = it87_attributes_temp[1] },
- { .attrs = it87_attributes_temp[2] },
+ NULL
};
-static struct attribute *it87_attributes_temp_offset[] = {
- &sensor_dev_attr_temp1_offset.dev_attr.attr,
- &sensor_dev_attr_temp2_offset.dev_attr.attr,
- &sensor_dev_attr_temp3_offset.dev_attr.attr,
+static const struct attribute_group it87_group_temp = {
+ .attrs = it87_attributes_temp,
+ .is_visible = it87_temp_is_visible,
};
static struct attribute *it87_attributes[] = {
@@ -1881,12 +1898,6 @@ static const struct attribute_group it87_group = {
.attrs = it87_attributes,
};
-static struct attribute *it87_attributes_temp_beep[] = {
- &sensor_dev_attr_temp1_beep.dev_attr.attr,
- &sensor_dev_attr_temp2_beep.dev_attr.attr,
- &sensor_dev_attr_temp3_beep.dev_attr.attr,
-};
-
static struct attribute *it87_attributes_fan[6][3+1] = { {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
@@ -2436,18 +2447,8 @@ static void it87_remove_files(struct device *dev)
sysfs_remove_group(&dev->kobj, &it87_group);
sysfs_remove_group(&dev->kobj, &it87_group_in);
+ sysfs_remove_group(&dev->kobj, &it87_group_temp);
- for (i = 0; i < 3; i++) {
- if (!(data->has_temp & (1 << i)))
- continue;
- sysfs_remove_group(&dev->kobj, &it87_group_temp[i]);
- if (has_temp_offset(data))
- sysfs_remove_file(&dev->kobj,
- it87_attributes_temp_offset[i]);
- if (sio_data->beep_pin)
- sysfs_remove_file(&dev->kobj,
- it87_attributes_temp_beep[i]);
- }
for (i = 0; i < 6; i++) {
if (!(data->has_fan & (1 << i)))
continue;
@@ -2746,25 +2747,9 @@ static int it87_probe(struct platform_device *pdev)
if (err)
goto error;
- for (i = 0; i < 3; i++) {
- if (!(data->has_temp & (1 << i)))
- continue;
- err = sysfs_create_group(&dev->kobj, &it87_group_temp[i]);
- if (err)
- goto error;
- if (has_temp_offset(data)) {
- err = sysfs_create_file(&dev->kobj,
- it87_attributes_temp_offset[i]);
- if (err)
- goto error;
- }
- if (sio_data->beep_pin) {
- err = sysfs_create_file(&dev->kobj,
- it87_attributes_temp_beep[i]);
- if (err)
- goto error;
- }
- }
+ err = sysfs_create_group(&dev->kobj, &it87_group_temp);
+ if (err)
+ goto error;
/* Do not create fan files for disabled fans */
fan_beep_need_rw = 1;
--
2.1.4
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