Provided by: kernel-doc-2.4.27_2.4.27-12_all
sppp_input - receive and process a WAN PPP frame
void sppp_input (struct net_device *dev, struct sk_buff *skb);
dev The device it arrived on
skb The buffer to process
This can be called directly by cards that do not have timing
constraints but is normally called from the network layer after
interrupt servicing to process frames queued via netif_rx.
We process the options in the card. If the frame is destined for the
protocol stacks then it requeues the frame for the upper level
protocol. If it is a control from it is processed and discarded here.