diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index f3fc439..55d28cb 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -270,10 +270,9 @@
 	return memset(skb_transport_header(skb), 0, headlen);
 }
 
-static inline struct dccp_hdr_ext *dccp_hdrx(const struct sk_buff *skb)
+static inline struct dccp_hdr_ext *dccp_hdrx(const struct dccp_hdr *dh)
 {
-	return (struct dccp_hdr_ext *)(skb_transport_header(skb) +
-				       sizeof(struct dccp_hdr));
+	return (struct dccp_hdr_ext *)((unsigned char *)dh + sizeof(*dh));
 }
 
 static inline unsigned int __dccp_basic_hdr_len(const struct dccp_hdr *dh)
@@ -287,13 +286,12 @@
 	return __dccp_basic_hdr_len(dh);
 }
 
-static inline __u64 dccp_hdr_seq(const struct sk_buff *skb)
+static inline __u64 dccp_hdr_seq(const struct dccp_hdr *dh)
 {
-	const struct dccp_hdr *dh = dccp_hdr(skb);
 	__u64 seq_nr =  ntohs(dh->dccph_seq);
 
 	if (dh->dccph_x != 0)
-		seq_nr = (seq_nr << 32) + ntohl(dccp_hdrx(skb)->dccph_seq_low);
+		seq_nr = (seq_nr << 32) + ntohl(dccp_hdrx(dh)->dccph_seq_low);
 	else
 		seq_nr += (u32)dh->dccph_seq2 << 16;
 
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 222549a..3f1578d 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -241,7 +241,7 @@
 		goto out;
 
 	dp = dccp_sk(sk);
-	seq = dccp_hdr_seq(skb);
+	seq = dccp_hdr_seq(dh);
 	if (sk->sk_state != DCCP_LISTEN &&
 	    !between48(seq, dp->dccps_swl, dp->dccps_swh)) {
 		NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
@@ -795,7 +795,7 @@
 
 	dh = dccp_hdr(skb);
 
-	DCCP_SKB_CB(skb)->dccpd_seq  = dccp_hdr_seq(skb);
+	DCCP_SKB_CB(skb)->dccpd_seq  = dccp_hdr_seq(dh);
 	DCCP_SKB_CB(skb)->dccpd_type = dh->dccph_type;
 
 	dccp_pr_debug("%8.8s "
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index bbadd66..62428ff 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -173,7 +173,7 @@
 
 	icmpv6_err_convert(type, code, &err);
 
-	seq = DCCP_SKB_CB(skb)->dccpd_seq;
+	seq = dccp_hdr_seq(dh);
 	/* Might be for an request_sock */
 	switch (sk->sk_state) {
 		struct request_sock *req, **prev;
@@ -787,7 +787,7 @@
 
 	dh = dccp_hdr(skb);
 
-	DCCP_SKB_CB(skb)->dccpd_seq  = dccp_hdr_seq(skb);
+	DCCP_SKB_CB(skb)->dccpd_seq  = dccp_hdr_seq(dh);
 	DCCP_SKB_CB(skb)->dccpd_type = dh->dccph_type;
 
 	if (dccp_packet_without_ack(skb))