taglinefilesource code
PACKET_HOST1441net/appletalk/ddp.cif (skb->pkt_type != PACKET_HOST || ddp->deh_dnet == 0) 
PACKET_HOST551net/core/skbuff.cskb->pkt_type = PACKET_HOST;  /* Default type */
PACKET_HOST271net/ipv4/icmp.cif(skb_in->pkt_type!=PACKET_HOST)
PACKET_HOST324net/ipv4/ip_input.cif (brd != IS_MYADDR || skb->pkt_type != PACKET_HOST) 
PACKET_HOST585net/ipv4/ip_input.cif(skb->pkt_type!=PACKET_HOST || brd==IS_BROADCAST)
PACKET_HOST4800net/ipv4/tcp.cif(skb->pkt_type!=PACKET_HOST)