diff options
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 8219d0d8dc83..3708de2a6683 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1556,9 +1556,9 @@ int tcp_v4_rcv(struct sk_buff *skb) if (!pskb_may_pull(skb, sizeof(struct tcphdr))) goto discard_it; - th = tcp_hdr(skb); + th = (const struct tcphdr *)skb->data; - if (th->doff < sizeof(struct tcphdr) / 4) + if (unlikely(th->doff < sizeof(struct tcphdr) / 4)) goto bad_packet; if (!pskb_may_pull(skb, th->doff * 4)) goto discard_it; @@ -1571,7 +1571,7 @@ int tcp_v4_rcv(struct sk_buff *skb) if (skb_checksum_init(skb, IPPROTO_TCP, inet_compute_pseudo)) goto csum_error; - th = tcp_hdr(skb); + th = (const struct tcphdr *)skb->data; iph = ip_hdr(skb); /* This is tricky : We move IPCB at its correct location into TCP_SKB_CB() * barrier() makes sure compiler wont play fool^Waliasing games. |