diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 8219d0d8dc8370d0d3e6fc4cd17b4925617968ab..3708de2a66833cf1d4a221a2b6ce3923bde978c4 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.
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index b69d84e7a97dfdadc0a6220ffbef01a05c5eb0bd..8bd9911fdd163ab739d2dfda34e053b5e8e0bc03 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -364,7 +364,7 @@ tcp_ecn_make_synack(const struct request_sock *req, struct tcphdr *th)
  * be sent.
  */
 static void tcp_ecn_send(struct sock *sk, struct sk_buff *skb,
-				int tcp_header_len)
+			 struct tcphdr *th, int tcp_header_len)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -375,7 +375,7 @@ static void tcp_ecn_send(struct sock *sk, struct sk_buff *skb,
 			INET_ECN_xmit(sk);
 			if (tp->ecn_flags & TCP_ECN_QUEUE_CWR) {
 				tp->ecn_flags &= ~TCP_ECN_QUEUE_CWR;
-				tcp_hdr(skb)->cwr = 1;
+				th->cwr = 1;
 				skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN;
 			}
 		} else if (!tcp_ca_needs_ecn(sk)) {
@@ -383,7 +383,7 @@ static void tcp_ecn_send(struct sock *sk, struct sk_buff *skb,
 			INET_ECN_dontxmit(sk);
 		}
 		if (tp->ecn_flags & TCP_ECN_DEMAND_CWR)
-			tcp_hdr(skb)->ece = 1;
+			th->ece = 1;
 	}
 }
 
@@ -954,7 +954,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 	atomic_add(skb->truesize, &sk->sk_wmem_alloc);
 
 	/* Build TCP header and checksum it. */
-	th = tcp_hdr(skb);
+	th = (struct tcphdr *)skb->data;
 	th->source		= inet->inet_sport;
 	th->dest		= inet->inet_dport;
 	th->seq			= htonl(tcb->seq);
@@ -962,14 +962,6 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 	*(((__be16 *)th) + 6)	= htons(((tcp_header_size >> 2) << 12) |
 					tcb->tcp_flags);
 
-	if (unlikely(tcb->tcp_flags & TCPHDR_SYN)) {
-		/* RFC1323: The window in SYN & SYN/ACK segments
-		 * is never scaled.
-		 */
-		th->window	= htons(min(tp->rcv_wnd, 65535U));
-	} else {
-		th->window	= htons(tcp_select_window(sk));
-	}
 	th->check		= 0;
 	th->urg_ptr		= 0;
 
@@ -986,9 +978,15 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 
 	tcp_options_write((__be32 *)(th + 1), tp, &opts);
 	skb_shinfo(skb)->gso_type = sk->sk_gso_type;
-	if (likely((tcb->tcp_flags & TCPHDR_SYN) == 0))
-		tcp_ecn_send(sk, skb, tcp_header_size);
-
+	if (likely(!(tcb->tcp_flags & TCPHDR_SYN))) {
+		th->window      = htons(tcp_select_window(sk));
+		tcp_ecn_send(sk, skb, th, tcp_header_size);
+	} else {
+		/* RFC1323: The window in SYN & SYN/ACK segments
+		 * is never scaled.
+		 */
+		th->window	= htons(min(tp->rcv_wnd, 65535U));
+	}
 #ifdef CONFIG_TCP_MD5SIG
 	/* Calculate the MD5 hash, as we have all we need now */
 	if (md5) {
@@ -3040,7 +3038,7 @@ struct sk_buff *tcp_make_synack(const struct sock *sk, struct dst_entry *dst,
 	skb_push(skb, tcp_header_size);
 	skb_reset_transport_header(skb);
 
-	th = tcp_hdr(skb);
+	th = (struct tcphdr *)skb->data;
 	memset(th, 0, sizeof(struct tcphdr));
 	th->syn = 1;
 	th->ack = 1;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index c4efaa97280c20918866e3311bb756abf0a325c4..79e33e02f11accfd5a6c8cf2751df0a8793ab016 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1369,9 +1369,9 @@ static int tcp_v6_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;
@@ -1379,7 +1379,7 @@ static int tcp_v6_rcv(struct sk_buff *skb)
 	if (skb_checksum_init(skb, IPPROTO_TCP, ip6_compute_pseudo))
 		goto csum_error;
 
-	th = tcp_hdr(skb);
+	th = (const struct tcphdr *)skb->data;
 	hdr = ipv6_hdr(skb);
 
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