tag	line	file	source code
IPOPT_NOP	61	net/ipv4/ip_options.c	memset(iph+opt->rr, IPOPT_NOP, iph[opt->rr+1]);
IPOPT_NOP	67	net/ipv4/ip_options.c	memset(iph+opt->ts, IPOPT_NOP, iph[opt->ts+1]);