tag	line	file	source code
fib_tos	91	net/ipv4/route.c	unsigned char    fib_tos;
fib_tos	585	net/ipv4/route.c	f->fib_tos    = 0;
fib_tos	1554	net/ipv4/route.c	rth->rt_tos  = f->fib_tos;