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hwmon: (pmbus) Fix 'Macros with multiple statements' checkpatch error

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Fix:
ERROR: Macros with multiple statements should be enclosed in a do - while loop

by unwinding the problematic macros.

As a side effect, this patch reduces code size on x86_64 by 160 bytes and bss
size by 64 bytes.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2013-01-19 20:59:04 -08:00
parent 77493ef60f
commit 973018b1b7
1 changed files with 43 additions and 33 deletions
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76
drivers/hwmon/pmbus/pmbus_core.c
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@ -809,42 +809,43 @@ static ssize_t pmbus_show_label(struct device *dev,
data->labels[attr->index].label);
}
#define PMBUS_ADD_ATTR(data, _name, _idx, _mode, _type, _show, _set) \
do { \
struct sensor_device_attribute *a \
= &data->_type##s[data->num_##_type##s].attribute; \
BUG_ON(data->num_attributes >= data->max_attributes); \
sysfs_attr_init(&a->dev_attr.attr); \
a->dev_attr.attr.name = _name; \
a->dev_attr.attr.mode = _mode; \
a->dev_attr.show = _show; \
a->dev_attr.store = _set; \
a->index = _idx; \
data->attributes[data->num_attributes] = &a->dev_attr.attr; \
data->num_attributes++; \
} while (0)
#define PMBUS_ADD_GET_ATTR(data, _name, _type, _idx) \
PMBUS_ADD_ATTR(data, _name, _idx, S_IRUGO, _type, \
pmbus_show_##_type, NULL)
#define PMBUS_ADD_SET_ATTR(data, _name, _type, _idx) \
PMBUS_ADD_ATTR(data, _name, _idx, S_IWUSR | S_IRUGO, _type, \
pmbus_show_##_type, pmbus_set_##_type)
static void pmbus_attr_init(struct sensor_device_attribute *a,
const char *name,
umode_t mode,
ssize_t (*show)(struct device *dev,
struct device_attribute *attr,
char *buf),
ssize_t (*store)(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count),
int idx)
{
sysfs_attr_init(&a->dev_attr.attr);
a->dev_attr.attr.name = name;
a->dev_attr.attr.mode = mode;
a->dev_attr.show = show;
a->dev_attr.store = store;
a->index = idx;
}
static void pmbus_add_boolean(struct pmbus_data *data,
const char *name, const char *type, int seq,
int idx)
{
struct pmbus_boolean *boolean;
struct sensor_device_attribute *a;
BUG_ON(data->num_booleans >= data->max_booleans);
BUG_ON(data->num_booleans >= data->max_booleans ||
data->num_attributes >= data->max_attributes);
boolean = &data->booleans[data->num_booleans];
a = &boolean->attribute;
snprintf(boolean->name, sizeof(boolean->name), "%s%d_%s",
name, seq, type);
PMBUS_ADD_GET_ATTR(data, boolean->name, boolean, idx);
pmbus_attr_init(a, boolean->name, S_IRUGO, pmbus_show_boolean, NULL,
idx);
data->attributes[data->num_attributes++] = &a->dev_attr.attr;
data->num_booleans++;
}
@ -869,22 +870,25 @@ static void pmbus_add_sensor(struct pmbus_data *data,
bool update, bool readonly)
{
struct pmbus_sensor *sensor;
struct sensor_device_attribute *a;
BUG_ON(data->num_sensors >= data->max_sensors);
BUG_ON(data->num_sensors >= data->max_sensors ||
data->num_attributes >= data->max_attributes);
sensor = &data->sensors[data->num_sensors];
a = &sensor->attribute;
snprintf(sensor->name, sizeof(sensor->name), "%s%d_%s",
name, seq, type);
sensor->page = page;
sensor->reg = reg;
sensor->class = class;
sensor->update = update;
if (readonly)
PMBUS_ADD_GET_ATTR(data, sensor->name, sensor,
data->num_sensors);
else
PMBUS_ADD_SET_ATTR(data, sensor->name, sensor,
data->num_sensors);
pmbus_attr_init(a, sensor->name,
readonly ? S_IRUGO : S_IRUGO | S_IWUSR,
pmbus_show_sensor, pmbus_set_sensor, data->num_sensors);
data->attributes[data->num_attributes++] = &a->dev_attr.attr;
data->num_sensors++;
}
@ -893,10 +897,14 @@ static void pmbus_add_label(struct pmbus_data *data,
const char *lstring, int index)
{
struct pmbus_label *label;
struct sensor_device_attribute *a;
BUG_ON(data->num_labels >= data->max_labels);
BUG_ON(data->num_labels >= data->max_labels ||
data->num_attributes >= data->max_attributes);
label = &data->labels[data->num_labels];
a = &label->attribute;
snprintf(label->name, sizeof(label->name), "%s%d_label", name, seq);
if (!index)
strncpy(label->label, lstring, sizeof(label->label) - 1);
@ -904,7 +912,9 @@ static void pmbus_add_label(struct pmbus_data *data,
snprintf(label->label, sizeof(label->label), "%s%d", lstring,
index);
PMBUS_ADD_GET_ATTR(data, label->name, label, data->num_labels);
pmbus_attr_init(a, label->name, S_IRUGO, pmbus_show_label, NULL,
data->num_labels);
data->attributes[data->num_attributes++] = &a->dev_attr.attr;
data->num_labels++;
}