netdevice hdlc: Convert directly reference of netdev->priv

For killing directly reference of netdev->priv, use netdev->ml_priv to replace it.
Because the private pvc data comes from add_pvc() and can't be allocated in
alloc_netdev().
Signed-off-by: NWang Chen <wangchen@cn.fujitsu.com>
Acked-by: NKrzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/wan/hdlc_fr.c

@@ -342,7 +342,7 @@ static int fr_hard_header(struct sk_buff **skb_p, u16 dlci)
 
 static int pvc_open(struct net_device *dev)
 {
-	pvc_device *pvc = dev->priv;
+	pvc_device *pvc = dev->ml_priv;
 
 	if ((pvc->frad->flags & IFF_UP) == 0)
 		return -EIO;  /* Frad must be UP in order to activate PVC */
@@ -362,7 +362,7 @@ static int pvc_open(struct net_device *dev)
 
 static int pvc_close(struct net_device *dev)
 {
-	pvc_device *pvc = dev->priv;
+	pvc_device *pvc = dev->ml_priv;
 
 	if (--pvc->open_count == 0) {
 		hdlc_device *hdlc = dev_to_hdlc(pvc->frad);
@@ -381,7 +381,7 @@ static int pvc_close(struct net_device *dev)
 
 static int pvc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
-	pvc_device *pvc = dev->priv;
+	pvc_device *pvc = dev->ml_priv;
 	fr_proto_pvc_info info;
 
 	if (ifr->ifr_settings.type == IF_GET_PROTO) {
@@ -409,7 +409,7 @@ static int pvc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 
 static int pvc_xmit(struct sk_buff *skb, struct net_device *dev)
 {
-	pvc_device *pvc = dev->priv;
+	pvc_device *pvc = dev->ml_priv;
 
 	if (pvc->state.active) {
 		if (dev->type == ARPHRD_ETHER) {
@@ -1111,7 +1111,7 @@ static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type)
 	dev->change_mtu = pvc_change_mtu;
 	dev->mtu = HDLC_MAX_MTU;
 	dev->tx_queue_len = 0;
-	dev->priv = pvc;
+	dev->ml_priv = pvc;
 
 	result = dev_alloc_name(dev, dev->name);
 	if (result < 0) {

include/linux/hdlc.h

@@ -80,7 +80,7 @@ struct net_device *alloc_hdlcdev(void *priv);
 
 static inline struct hdlc_device* dev_to_hdlc(struct net_device *dev)
 {
-	return dev->priv;
+	return netdev_priv(dev);
 }
 
 static __inline__ void debug_frame(const struct sk_buff *skb)