ipv4_get_dsfield
ip_dsfield = ipv4_get_dsfield(iph);
dscp = ipv4_get_dsfield(ip_hdr(skb)) >> HNS3_DSCP_SHIFT;
dscp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
dscp_cp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
dscp = ipv4_get_dsfield(ip_hdr(skb)) & 0xfc;
tos = ipv4_get_dsfield(ip_hdr(skb));
return ipv4_get_dsfield(ip_hdr(skb));
prio = (ipv4_get_dsfield(ip_hdr) & 0xfc) >> 5;
TCP_SKB_CB(skb)->ip_dsfield = ipv4_get_dsfield(iph);
*dsfield = ipv4_get_dsfield(iph);
orig_dsfield = ipv4_get_dsfield(iph);
orig_dsfield = ipv4_get_dsfield(iph);
old_dsfield = ipv4_get_dsfield(old_iph);
u_int8_t dscp = ipv4_get_dsfield(ip_hdr(skb)) >> XT_DSCP_SHIFT;
orig = ipv4_get_dsfield(iph);
u_int8_t dscp = ipv4_get_dsfield(ip_hdr(skb)) >> XT_DSCP_SHIFT;
dscp = ipv4_get_dsfield(ip_hdr(skb)) & ~INET_ECN_MASK;
skb->priority = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
dscp = ipv4_get_dsfield((struct iphdr *)buf) >> 2;
cb->ect = ipv4_get_dsfield(ip_hdr(skb)) & INET_ECN_MASK;
dscp = ipv4_get_dsfield(ip_hdr(skb)) & 0xfc;