126 #define shost_show_function(name, field, format_string)			\  argument
132 	return snprintf (buf, 20, format_string, shost->field);		\
139 #define shost_rd_attr2(name, field, format_string)			\  argument
140 	shost_show_function(name, field, format_string)			\
143 #define shost_rd_attr(field, format_string) \  argument
144 shost_rd_attr2(field, field, format_string)
508 #define sdev_show_function(field, format_string)				\  argument
510 sdev_show_##field (struct device *dev, struct device_attribute *attr,	\
515 	return snprintf (buf, 20, format_string, sdev->field);		\
522 #define sdev_rd_attr(field, format_string)				\  argument
523 	sdev_show_function(field, format_string)			\
524 static DEVICE_ATTR(field, S_IRUGO, sdev_show_##field, NULL);
531 #define sdev_rw_attr(field, format_string)				\  argument
532 	sdev_show_function(field, format_string)				\
535 sdev_store_##field (struct device *dev, struct device_attribute *attr,	\
540 	sscanf (buf, format_string, &sdev->field);			\
543 static DEVICE_ATTR(field, S_IRUGO | S_IWUSR, sdev_show_##field, sdev_store_##field);
552 #define sdev_rw_attr_bit(field)						\
553 	sdev_show_function(field, "%d\n")					\
556 sdev_store_##field (struct device *dev, struct device_attribute *attr,	\
564 		sdev->field = ret;					\
569 static DEVICE_ATTR(field, S_IRUGO | S_IWUSR, sdev_show_##field, sdev_store_##field);
810 #define show_sdev_iostat(field)						\  argument
812 show_iostat_##field(struct device *dev, struct device_attribute *attr,	\
816 	unsigned long long count = atomic_read(&sdev->field);		\
819 static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)