* Generates attribute for a unit.
*/
#define ZFCP_DEFINE_SCSI_ATTR(_name, _format, _value) \
-static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev, \
+static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
struct scsi_device *sdev; \