XT_DSCP_MASK       15 include/linux/netfilter_ipv4/ipt_dscp.h #define IPT_DSCP_MASK	XT_DSCP_MASK
XT_DSCP_MASK       41 net/netfilter/xt_DSCP.c 		ipv4_change_dsfield(ip_hdr(skb), (__u8)(~XT_DSCP_MASK),
XT_DSCP_MASK       58 net/netfilter/xt_DSCP.c 		ipv6_change_dsfield(ipv6_hdr(skb), (__u8)(~XT_DSCP_MASK),