to_dev_attr
#define to_dev_attr(_attr) container_of(_attr, struct device_attribute, attr)
#define to_dev_attr(x) container_of(x, struct device_attribute, attr)
#define to_dev_attr(a) container_of(a, struct device_attribute, attr)
#define to_dev_attr(_dev_attr) \
#define to_dev_attr(_attr) container_of(_attr, struct device_attribute, attr)
#define to_dev_attr(_attr) \
#define to_dev_attr(a) container_of(a, struct device_attribute, attr)
#define to_dev_attr(_attr) container_of(_attr, struct device_attribute, attr)
#define to_dev_attr(_attr) container_of(_attr, struct domain_dev_attribute,\