csum_replace2      41 net/ipv4/netfilter/ipt_ECN.c 		csum_replace2(&iph->check, htons(oldtos), htons(iph->tos));
csum_replace2      54 net/ipv4/netfilter/ipt_TTL.c 		csum_replace2(&iph->check, htons(iph->ttl << 8),
csum_replace2      89 net/netfilter/xt_DSCP.c 		csum_replace2(&iph->check, htons(oldtos), htons(iph->tos));
csum_replace2     192 net/netfilter/xt_TCPMSS.c 		csum_replace2(&iph->check, iph->tot_len, newlen);