tag	line	file	source code
ICMP_ECHO	185	net/ipv4/icmp.c	case ICMP_ECHO:
ICMP_ECHO	701	net/ipv4/icmp.c	if (icmph->type != ICMP_ECHO)
ICMP_ECHO	728	net/ipv4/icmp.c	case ICMP_ECHO: