Implement helper inline function to get traffic class from IPv6 header.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
return (struct ipv6hdr *)skb_transport_header(skb);
}
+static inline __u8 ipv6_tclass(const struct ipv6hdr *iph)
+{
+ return (ntohl(*(__be32 *)iph) >> 20) & 0xff;
+}
+
/*
This structure contains results of exthdrs parsing
as offsets from skb->nh.
}
if (np->rxopt.bits.rxtclass) {
- int tclass = (ntohl(*(__be32 *)ipv6_hdr(skb)) >> 20) & 0xff;
+ int tclass = ipv6_tclass(ipv6_hdr(skb));
put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
}