ipv6_copy_dscp    712 net/ipv6/ip6_tunnel.c 		ipv6_copy_dscp(ipv6_get_dsfield(ipv6h), ipv6_hdr(skb));
ipv6_copy_dscp    277 net/xfrm/xfrm_input.c 		ipv6_copy_dscp(ipv6_get_dsfield(ipv6_hdr(skb)),