diff --git a/drivers/net/usb/asix.h b/drivers/net/usb/asix.h
index 9a4171b90947..4bbb52669ac4 100644
--- a/drivers/net/usb/asix.h
+++ b/drivers/net/usb/asix.h
@@ -197,6 +197,11 @@ extern const struct driver_info ax88172a_info;
 /* ASIX specific flags */
 #define FLAG_EEPROM_MAC		(1UL << 0)  /* init device MAC from eeprom */
 
+static inline struct asix_data *usbnet_to_asix(struct usbnet *usb)
+{
+	return (struct asix_data *)&usb->data;
+}
+
 int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
 		  u16 size, void *data, int in_pm);
 
diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c
index e95dd12edec4..1fd650faca5b 100644
--- a/drivers/net/usb/asix_common.c
+++ b/drivers/net/usb/asix_common.c
@@ -418,7 +418,7 @@ int asix_write_gpio(struct usbnet *dev, u16 value, int sleep, int in_pm)
 void asix_set_multicast(struct net_device *net)
 {
 	struct usbnet *dev = netdev_priv(net);
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	u16 rx_ctl = AX_DEFAULT_RX_CTL;
 
 	if (net->flags & IFF_PROMISC) {
@@ -751,7 +751,7 @@ void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
 int asix_set_mac_address(struct net_device *net, void *p)
 {
 	struct usbnet *dev = netdev_priv(net);
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	struct sockaddr *addr = p;
 
 	if (netif_running(net))
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index b654f05b2ccd..8e387f06dccf 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -144,7 +144,7 @@ static const struct ethtool_ops ax88172_ethtool_ops = {
 static void ax88172_set_multicast(struct net_device *net)
 {
 	struct usbnet *dev = netdev_priv(net);
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	u8 rx_ctl = 0x8c;
 
 	if (net->flags & IFF_PROMISC) {
@@ -332,7 +332,7 @@ static int ax88772_link_reset(struct usbnet *dev)
 
 static int ax88772_reset(struct usbnet *dev)
 {
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	int ret;
 
 	/* Rewrite MAC address */
@@ -359,7 +359,7 @@ static int ax88772_reset(struct usbnet *dev)
 
 static int ax88772_hw_reset(struct usbnet *dev, int in_pm)
 {
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	int ret, embd_phy;
 	u16 rx_ctl;
 
@@ -454,7 +454,7 @@ static int ax88772_hw_reset(struct usbnet *dev, int in_pm)
 
 static int ax88772a_hw_reset(struct usbnet *dev, int in_pm)
 {
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	int ret, embd_phy;
 	u16 rx_ctl, phy14h, phy15h, phy16h;
 	u8 chipcode = 0;
@@ -795,7 +795,7 @@ static const struct ethtool_ops ax88178_ethtool_ops = {
 
 static int marvell_phy_init(struct usbnet *dev)
 {
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	u16 reg;
 
 	netdev_dbg(dev->net, "marvell_phy_init()\n");
@@ -827,7 +827,7 @@ static int marvell_phy_init(struct usbnet *dev)
 
 static int rtl8211cl_phy_init(struct usbnet *dev)
 {
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 
 	netdev_dbg(dev->net, "rtl8211cl_phy_init()\n");
 
@@ -874,7 +874,7 @@ static int marvell_led_status(struct usbnet *dev, u16 speed)
 
 static int ax88178_reset(struct usbnet *dev)
 {
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	int ret;
 	__le16 eeprom;
 	u8 status;
@@ -962,7 +962,7 @@ static int ax88178_link_reset(struct usbnet *dev)
 {
 	u16 mode;
 	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	u32 speed;
 
 	netdev_dbg(dev->net, "ax88178_link_reset()\n");
diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c
index 501576f53854..08f33c89f002 100644
--- a/drivers/net/usb/ax88172a.c
+++ b/drivers/net/usb/ax88172a.c
@@ -289,7 +289,7 @@ static void ax88172a_unbind(struct usbnet *dev, struct usb_interface *intf)
 
 static int ax88172a_reset(struct usbnet *dev)
 {
-	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_data *data = usbnet_to_asix(dev);
 	struct ax88172a_private *priv = dev->driver_priv;
 	int ret;
 	u16 rx_ctl;
