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ipv6: helper function to get tclass

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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>
This commit is contained in:
Jiri Benc
2012-02-09 09:34:41 +00:00
committed by David S. Miller
parent 72e60278d7
commit 7a3198a897
2 changed files with 6 additions and 1 deletions
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2
net/ipv6/datagram.c
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@ -485,7 +485,7 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
}
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);
}