static netdev_tx_t slc_xmit(struct sk_buff *skb, struct net_device *dev)
#endif
{
struct slcan *sl = netdev_priv(dev);
if (skb->len != sizeof(struct can_frame))
goto out;
spin_lock(&sl->lock);
if (!netif_running(dev)) {
spin_unlock(&sl->lock);
printk(KERN_WARNING "%s: xmit: iface is down\n", dev->name);
goto out;
}
if (sl->tty == NULL) {
spin_unlock(&sl->lock);
goto out;
}
netif_stop_queue(sl->dev);
slc_encaps(sl, (struct can_frame *) skb->data); /* encaps & send */
spin_unlock(&sl->lock);
out:
kfree_skb(skb);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
return 0;
#else
return NETDEV_TX_OK;
#endif
}
/* Send a can_frame to a TTY queue. */
static netdev_tx_t slc_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct slcan *sl = netdev_priv(dev);
if (skb->len != CAN_MTU)
goto out;
spin_lock(&sl->lock);
if (!netif_running(dev)) {
spin_unlock(&sl->lock);
printk(KERN_WARNING "%s: xmit: iface is down\n", dev->name);
goto out;
}
if (sl->tty == NULL) {
spin_unlock(&sl->lock);
goto out;
}
netif_stop_queue(sl->dev);
slc_encaps(sl, (struct can_frame *) skb->data); /* encaps & send */
spin_unlock(&sl->lock);
out:
kfree_skb(skb);
return NETDEV_TX_OK;
}
