netif_receive_skb — process receive buffer from network
|struct sk_buff * skb|
netif_receive_skb is the main receive data processing function.
It always succeeds. The buffer may be dropped during processing
for congestion control or by the protocol layers.
This function may only be called from softirq context and interrupts should be enabled.
Return values (usually ignored): NET_RX_SUCCESS: no congestion NET_RX_DROP: packet was dropped