taglinefilesource code
skb_recv_datagram211net/inet/packet.cskb=skb_recv_datagram(sk,flags,noblock,&err);
skb_recv_datagram337net/inet/raw.cskb=skb_recv_datagram(sk,flags,noblock,&err);
skb_recv_datagram103net/inet/skbuff.hextern struct sk_buff *    skb_recv_datagram(struct sock *sk,unsigned flags,int noblock, int *err);
skb_recv_datagram475net/inet/udp.cskb=skb_recv_datagram(sk,flags,noblock,&er);