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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-03-18 17:43:48 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:25:24 -0700
commitab6a5bb6b28a970104a34f0f6959b73cf61bdc72 (patch)
tree54cfa7d4fe00d0c28a60022b075afc0856d6fc2b /net/ipv4/tcp_ipv4.c
parent88c7664f13bd1a36acb8566b93892a4c58759ac6 (diff)
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[TCP]: Introduce tcp_hdrlen() and tcp_optlen()
The ip_hdrlen() buddy, created to reduce the number of skb->h.th-> uses and to avoid the longer, open coded equivalent. Ditched a no-op in bnx2 in the process. I wonder if we should have a BUG_ON(skb->h.th->doff < 5) in tcp_optlen()... Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 51424df9078e..c146a02f8495 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1564,7 +1564,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
return 0;
}
- if (skb->len < (skb->h.th->doff << 2) || tcp_checksum_complete(skb))
+ if (skb->len < tcp_hdrlen(skb) || tcp_checksum_complete(skb))
goto csum_err;
if (sk->sk_state == TCP_LISTEN) {