tag	line	file	source code
sequence	68	include/linux/icmp.h	unsigned short  sequence;
sequence	339	net/inet/icmp.c	icmphr->un.echo.sequence = icmph->un.echo.sequence;
sequence	591	net/inet/tcp.c	tcp_send_ack(unsigned long sequence, unsigned long ack,
sequence	641	net/inet/tcp.c	t1->seq = ntohl(sequence);
sequence	664	net/inet/tcp.c	printk("\rtcp_ack: seq %lx ack %lx\n", sequence, ack);