diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 369fcf7..439fd81 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1316,7 +1316,7 @@
 			tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 			le32_to_cpu(dev->adapter_info.biosbuild));
 		buffer[0] = '\0';
-		if (aac_show_serial_number(
+		if (aac_get_serial_number(
 		  shost_to_class(dev->scsi_host_ptr), buffer))
 			printk(KERN_INFO "%s%d: serial %s",
 			  dev->name, dev->id, buffer);
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index ace0b75..113ca9c 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1850,9 +1850,9 @@
 int aac_scsi_cmd(struct scsi_cmnd *cmd);
 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg);
 #ifndef shost_to_class
-#define shost_to_class(shost) &shost->shost_classdev
+#define shost_to_class(shost) &shost->shost_dev
 #endif
-ssize_t aac_show_serial_number(struct class_device *class_dev, char *buf);
+ssize_t aac_get_serial_number(struct device *dev, char *buf);
 int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg);
 int aac_rx_init(struct aac_dev *dev);
 int aac_rkt_init(struct aac_dev *dev);
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index ae5f74f..c639183 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -755,10 +755,10 @@
 }
 #endif
 
-static ssize_t aac_show_model(struct class_device *class_dev,
-		char *buf)
+static ssize_t aac_show_model(struct device *device,
+			      struct device_attribute *attr, char *buf)
 {
-	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
 	int len;
 
 	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
@@ -774,10 +774,10 @@
 	return len;
 }
 
-static ssize_t aac_show_vendor(struct class_device *class_dev,
-		char *buf)
+static ssize_t aac_show_vendor(struct device *device,
+			       struct device_attribute *attr, char *buf)
 {
-	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
 	int len;
 
 	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
@@ -793,10 +793,11 @@
 	return len;
 }
 
-static ssize_t aac_show_flags(struct class_device *class_dev, char *buf)
+static ssize_t aac_show_flags(struct device *cdev,
+			      struct device_attribute *attr, char *buf)
 {
 	int len = 0;
-	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
 
 	if (nblank(dprintk(x)))
 		len = snprintf(buf, PAGE_SIZE, "dprintk\n");
@@ -812,10 +813,11 @@
 	return len;
 }
 
-static ssize_t aac_show_kernel_version(struct class_device *class_dev,
-		char *buf)
+static ssize_t aac_show_kernel_version(struct device *device,
+				       struct device_attribute *attr,
+				       char *buf)
 {
-	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
 	int len, tmp;
 
 	tmp = le32_to_cpu(dev->adapter_info.kernelrev);
@@ -825,10 +827,11 @@
 	return len;
 }
 
-static ssize_t aac_show_monitor_version(struct class_device *class_dev,
-		char *buf)
+static ssize_t aac_show_monitor_version(struct device *device,
+					struct device_attribute *attr,
+					char *buf)
 {
-	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
 	int len, tmp;
 
 	tmp = le32_to_cpu(dev->adapter_info.monitorrev);
@@ -838,10 +841,11 @@
 	return len;
 }
 
-static ssize_t aac_show_bios_version(struct class_device *class_dev,
-		char *buf)
+static ssize_t aac_show_bios_version(struct device *device,
+				     struct device_attribute *attr,
+				     char *buf)
 {
-	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
 	int len, tmp;
 
 	tmp = le32_to_cpu(dev->adapter_info.biosrev);
@@ -851,9 +855,10 @@
 	return len;
 }
 
-ssize_t aac_show_serial_number(struct class_device *class_dev, char *buf)
+ssize_t aac_show_serial_number(struct device *device,
+			       struct device_attribute *attr, char *buf)
 {
-	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
 	int len = 0;
 
 	if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
@@ -869,35 +874,39 @@
 	return len;
 }
 
-static ssize_t aac_show_max_channel(struct class_device *class_dev, char *buf)
+static ssize_t aac_show_max_channel(struct device *device,
+				    struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%d\n",
-	  class_to_shost(class_dev)->max_channel);
+	  class_to_shost(device)->max_channel);
 }
 
-static ssize_t aac_show_max_id(struct class_device *class_dev, char *buf)
+static ssize_t aac_show_max_id(struct device *device,
+			       struct device_attribute *attr, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%d\n",
-	  class_to_shost(class_dev)->max_id);
+	  class_to_shost(device)->max_id);
 }
 
-static ssize_t aac_store_reset_adapter(struct class_device *class_dev,
-		const char *buf, size_t count)
+static ssize_t aac_store_reset_adapter(struct device *device,
+				       struct device_attribute *attr,
+				       const char *buf, size_t count)
 {
 	int retval = -EACCES;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return retval;
-	retval = aac_reset_adapter((struct aac_dev*)class_to_shost(class_dev)->hostdata, buf[0] == '!');
+	retval = aac_reset_adapter((struct aac_dev*)class_to_shost(device)->hostdata, buf[0] == '!');
 	if (retval >= 0)
 		retval = count;
 	return retval;
 }
 
-static ssize_t aac_show_reset_adapter(struct class_device *class_dev,
-		char *buf)
+static ssize_t aac_show_reset_adapter(struct device *device,
+				      struct device_attribute *attr,
+				      char *buf)
 {
-	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
 	int len, tmp;
 
 	tmp = aac_adapter_check_health(dev);
@@ -907,70 +916,70 @@
 	return len;
 }
 
-static struct class_device_attribute aac_model = {
+static struct device_attribute aac_model = {
 	.attr = {
 		.name = "model",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_model,
 };
-static struct class_device_attribute aac_vendor = {
+static struct device_attribute aac_vendor = {
 	.attr = {
 		.name = "vendor",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_vendor,
 };
-static struct class_device_attribute aac_flags = {
+static struct device_attribute aac_flags = {
 	.attr = {
 		.name = "flags",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_flags,
 };
-static struct class_device_attribute aac_kernel_version = {
+static struct device_attribute aac_kernel_version = {
 	.attr = {
 		.name = "hba_kernel_version",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_kernel_version,
 };
-static struct class_device_attribute aac_monitor_version = {
+static struct device_attribute aac_monitor_version = {
 	.attr = {
 		.name = "hba_monitor_version",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_monitor_version,
 };
-static struct class_device_attribute aac_bios_version = {
+static struct device_attribute aac_bios_version = {
 	.attr = {
 		.name = "hba_bios_version",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_bios_version,
 };
-static struct class_device_attribute aac_serial_number = {
+static struct device_attribute aac_serial_number = {
 	.attr = {
 		.name = "serial_number",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_serial_number,
 };
-static struct class_device_attribute aac_max_channel = {
+static struct device_attribute aac_max_channel = {
 	.attr = {
 		.name = "max_channel",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_max_channel,
 };
-static struct class_device_attribute aac_max_id = {
+static struct device_attribute aac_max_id = {
 	.attr = {
 		.name = "max_id",
 		.mode = S_IRUGO,
 	},
 	.show = aac_show_max_id,
 };
-static struct class_device_attribute aac_reset = {
+static struct device_attribute aac_reset = {
 	.attr = {
 		.name = "reset_host",
 		.mode = S_IWUSR|S_IRUGO,
@@ -979,7 +988,7 @@
 	.show = aac_show_reset_adapter,
 };
 
-static struct class_device_attribute *aac_attrs[] = {
+static struct device_attribute *aac_attrs[] = {
 	&aac_model,
 	&aac_vendor,
 	&aac_flags,
@@ -993,6 +1002,10 @@
 	NULL
 };
 
+ssize_t aac_get_serial_number(struct device *device, char *buf)
+{
+	return aac_show_serial_number(device, &aac_serial_number, buf);
+}
 
 static const struct file_operations aac_cfg_fops = {
 	.owner		= THIS_MODULE,