[IP]: Introduce ip_hdrlen()

[net-next-2.6.git] / net / ipv4 / netfilter / ipt_ecn.c

diff --git a/net/ipv4/netfilter/ipt_ecn.c b/net/ipv4/netfilter/ipt_ecn.c
index 37508b2cfea6d491e6ac27434b44386cae494681..b8ade3cc775728c2ab5fd328735c388363fa9d16 100644 (file)
--- a/net/ipv4/netfilter/ipt_ecn.c
+++ b/net/ipv4/netfilter/ipt_ecn.c
@@ -11,6 +11,7 @@
 
 #include <linux/in.h>
 #include <linux/ip.h>
+#include <net/ip.h>
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/tcp.h>
@@ -38,8 +39,7 @@ static inline int match_tcp(const struct sk_buff *skb,
        /* In practice, TCP match does this, so can't fail.  But let's
         * be good citizens.
         */
-       th = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
-                               sizeof(_tcph), &_tcph);
+       th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
        if (th == NULL) {
                *hotdrop = 0;
                return 0;