staging: vt6655: Use net_device_stats from struct net_device

Instead of using an own copy of struct net_device_stats in struct
vnt_private, use stats from struct net_device. Also remove the thus
unnecessary device_get_stats(), as it would now just return
netdev->stats, which is the default in dev_get_stats().
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/device.h

@@ -335,7 +335,6 @@ struct vnt_private {
 
 // netdev
 	struct net_device *dev;
-	struct net_device_stats     stats;
 
 //dma addr, rx/tx pool
 	dma_addr_t                  pool_dma;

drivers/staging/vt6655/device_main.c

@@ -264,7 +264,6 @@ static void vt6655_init_info(struct pci_dev *pcid,
 static void device_free_info(struct vnt_private *pDevice);
 static bool device_get_pci_info(struct vnt_private *, struct pci_dev *pcid);
 static void device_print_info(struct vnt_private *pDevice);
-static struct net_device_stats *device_get_stats(struct net_device *dev);
 static void device_init_diversity_timer(struct vnt_private *pDevice);
 static int  device_open(struct net_device *dev);
 static int  device_xmit(struct sk_buff *skb, struct net_device *dev);
@@ -807,7 +806,6 @@ static const struct net_device_ops device_netdev_ops = {
 	.ndo_open               = device_open,
 	.ndo_stop               = device_close,
 	.ndo_do_ioctl           = device_ioctl,
-	.ndo_get_stats          = device_get_stats,
 	.ndo_start_xmit         = device_xmit,
 	.ndo_set_rx_mode	= device_set_multi,
 };
@@ -1406,7 +1404,7 @@ static int device_tx_srv(struct vnt_private *pDevice, unsigned int uIdx)
 	unsigned char byTsr1;
 	unsigned int	uFrameSize, uFIFOHeaderSize;
 	PSTxBufHead              pTxBufHead;
-	struct net_device_stats *pStats = &pDevice->stats;
+	struct net_device_stats *pStats = &pDevice->dev->stats;
 	struct sk_buff *skb;
 	unsigned int	uNodeIndex;
 	PSMgmtObject             pMgmt = pDevice->pMgmt;
@@ -2587,13 +2585,6 @@ static void device_set_multi(struct net_device *dev) {
 	pr_debug("pDevice->byRxMode = %x\n", pDevice->byRxMode);
 }
 
-static struct net_device_stats *device_get_stats(struct net_device *dev)
-{
-	struct vnt_private *pDevice = netdev_priv(dev);
-
-	return &pDevice->stats;
-}
-
 static int  device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
 	struct vnt_private *pDevice = netdev_priv(dev);

drivers/staging/vt6655/dpc.c

@@ -274,7 +274,7 @@ device_receive_frame(
 )
 {
 	PDEVICE_RD_INFO  pRDInfo = pCurrRD->pRDInfo;
-	struct net_device_stats *pStats = &pDevice->stats;
+	struct net_device_stats *pStats = &pDevice->dev->stats;
 	struct sk_buff *skb;
 	PSMgmtObject    pMgmt = pDevice->pMgmt;
 	PSRxMgmtPacket  pRxPacket = &(pDevice->pMgmt->sRxPacket);