hysdn: convert to net_device_ops and other updates

Several API problems fixed:
  * use proper allocation
  * handle renames
  * convert to net_device_ops
  * use internal net_device_stats

This driver is putrid (as in old and rotten), so I doubt any one uses it.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 31 insertions, 46 deletions

diff --git a/drivers/isdn/hysdn/hysdn_net.c b/drivers/isdn/hysdn/hysdn_net.c
index 7ee5bd9f2bb4..579974cf4c9a 100644
--- a/drivers/isdn/hysdn/hysdn_net.c
+++ b/drivers/isdn/hysdn/hysdn_net.c
@@ -38,16 +38,12 @@ char *hysdn_net_revision = "$Revision: 1.8.6.4 $";
 /* inside the definition.                                                   */
 /****************************************************************************/
 struct net_local {
-        struct net_device netdev;       /* the network device */
-        struct net_device_stats stats;
-        /* additional vars may be added here */
-        char dev_name[9];       /* our own device name */
-
         /* Tx control lock.  This protects the transmit buffer ring
          * state along with the "tx full" state of the driver.  This
          * means all netif_queue flow control actions are protected
          * by this lock as well.
          */
+        struct net_device *dev;
         spinlock_t lock;
         struct sk_buff *skbs[MAX_SKB_BUFFERS];  /* pointers to tx-skbs */
         int in_idx, out_idx;    /* indexes to buffer ring */
@@ -55,15 +51,6 @@ struct net_local {
 };                              /* net_local */
 
 
-/*****************************************************/
-/* Get the current statistics for this card.         */
-/* This may be called with the card open or closed ! */
-/*****************************************************/
-static struct net_device_stats *
-net_get_stats(struct net_device *dev)
-{
-        return (&((struct net_local *) dev)->stats);
-}                               /* net_device_stats */
 
 /*********************************************************************/
 /* Open/initialize the board. This is called (in the current kernel) */
@@ -182,8 +169,8 @@ hysdn_tx_netack(hysdn_card * card)
         if (!lp->sk_count)
                 return;         /* error condition */
 
-        lp->stats.tx_packets++;
-        lp->stats.tx_bytes += lp->skbs[lp->out_idx]->len;
+        lp->dev->stats.tx_packets++;
+        lp->dev->stats.tx_bytes += lp->skbs[lp->out_idx]->len;
 
         dev_kfree_skb(lp->skbs[lp->out_idx++]);         /* free skb */
         if (lp->out_idx >= MAX_SKB_BUFFERS)
@@ -200,29 +187,30 @@ void
 hysdn_rx_netpkt(hysdn_card * card, unsigned char *buf, unsigned short len)
 {
         struct net_local *lp = card->netif;
+        struct net_device *dev = lp->dev;
         struct sk_buff *skb;
 
         if (!lp)
                 return;         /* non existing device */
 
-        lp->stats.rx_bytes += len;
+        dev->stats.rx_bytes += len;
 
         skb = dev_alloc_skb(len);
         if (skb == NULL) {
                 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n",
-                       lp->netdev.name);
-                lp->stats.rx_dropped++;
+                       dev->name);
+                dev->stats.rx_dropped++;
                 return;
         }
         /* copy the data */
         memcpy(skb_put(skb, len), buf, len);
 
         /* determine the used protocol */
-        skb->protocol = eth_type_trans(skb, &lp->netdev);
+        skb->protocol = eth_type_trans(skb, dev);
 
-        netif_rx(skb);
-        lp->stats.rx_packets++; /* adjust packet count */
+        dev->stats.rx_packets++;        /* adjust packet count */
 
+        netif_rx(skb);
 }                               /* hysdn_rx_netpkt */
 
 /*****************************************************/
@@ -242,24 +230,15 @@ hysdn_tx_netget(hysdn_card * card)
         return (lp->skbs[lp->out_idx]);         /* next packet to send */
 }                               /* hysdn_tx_netget */
 
+static const struct net_device_ops hysdn_netdev_ops = {
+        .ndo_open               = net_open,
+        .ndo_stop               = net_close,
+        .ndo_start_xmit         = net_send_packet,
+        .ndo_change_mtu         = eth_change_mtu,
+        .ndo_set_mac_address    = eth_mac_addr,
+        .ndo_validate_addr      = eth_validate_addr,
+};
 
-/*******************************************/
-/* init function called by register device */
-/*******************************************/
-static int
-net_init(struct net_device *dev)
-{
-        /* setup the function table */
-        dev->open = net_open;
-        dev->stop = net_close;
-        dev->hard_start_xmit = net_send_packet;
-        dev->get_stats = net_get_stats;
-
-        /* Fill in the fields of the device structure with ethernet values. */
-        ether_setup(dev);
-
-        return (0);             /* success */
-}                               /* net_init */
 
 /*****************************************************************************/
 /* hysdn_net_create creates a new net device for the given card. If a device */
@@ -271,28 +250,34 @@ hysdn_net_create(hysdn_card * card)
 {
         struct net_device *dev;
         int i;
+        struct net_local *lp;
+
         if(!card) {
                 printk(KERN_WARNING "No card-pt in hysdn_net_create!\n");
                 return (-ENOMEM);
         }
         hysdn_net_release(card);        /* release an existing net device */
-        if ((dev = kzalloc(sizeof(struct net_local), GFP_KERNEL)) == NULL) {
+
+        dev = alloc_etherdev(sizeof(struct net_local));
+        if (!dev) {
                 printk(KERN_WARNING "HYSDN: unable to allocate mem\n");
                 return (-ENOMEM);
         }
 
+        lp = netdev_priv(dev);
+        lp->dev = dev;
+
+        dev->netdev_ops = &hysdn_netdev_ops;
         spin_lock_init(&((struct net_local *) dev)->lock);
 
         /* initialise necessary or informing fields */
         dev->base_addr = card->iobase;  /* IO address */
         dev->irq = card->irq;   /* irq */
-        dev->init = net_init;   /* the init function of the device */
-        if(dev->name) {
-                strcpy(dev->name, ((struct net_local *) dev)->dev_name);
-        } 
+
+        dev->netdev_ops = &hysdn_netdev_ops;
         if ((i = register_netdev(dev))) {
                 printk(KERN_WARNING "HYSDN: unable to create network device\n");
-                kfree(dev);
+                free_netdev(dev);
                 return (i);
         }
         dev->ml_priv = card;    /* remember pointer to own data structure */
@@ -316,7 +301,7 @@ hysdn_net_release(hysdn_card * card)
                 return (0);     /* non existing */
 
         card->netif = NULL;     /* clear out pointer */
-        dev->stop(dev);         /* close the device */
+        net_close(dev);
 
         flush_tx_buffers((struct net_local *) dev);     /* empty buffers */