/* Return value: number of bytes printed to buffer  */
static ssize_t ipr_show_fw_version(struct device *dev, struct device_attribute *attr, char *buf)
/* Return value: number of bytes printed to buffer  */
static ssize_t ipr_show_fw_version(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct Scsi_Host *shost = class_to_shost(dev);
	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
	struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
	unsigned long lock_flags = 0;
	int len;
	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
	len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
		       ucode_vpd->major_release, ucode_vpd->card_type,
		       ucode_vpd->minor_release[0],
		       ucode_vpd->minor_release[1]);
	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
	return len;
}