Merge master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6

net/dccp/ipv4.c

@@ -463,6 +463,7 @@ static int dccp_v4_send_response(struct sock *sk, struct request_sock *req,
 	if (skb != NULL) {
 		const struct inet_request_sock *ireq = inet_rsk(req);
 
+		memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 		err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr,
 					    ireq->rmt_addr,
 					    ireq->opt);
@@ -647,6 +648,7 @@ int dccp_v4_send_reset(struct sock *sk, enum dccp_reset_codes code)
 	if (skb != NULL) {
 		const struct inet_sock *inet = inet_sk(sk);
 
+		memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 		err = ip_build_and_send_pkt(skb, sk,
 					    inet->saddr, inet->daddr, NULL);
 		if (err == NET_XMIT_CN)

net/dccp/output.c

@@ -62,10 +62,8 @@ int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 		
 		skb->h.raw = skb_push(skb, dccp_header_size);
 		dh = dccp_hdr(skb);
-		/*
-		 * Data packets are not cloned as they are never retransmitted
-		 */
-		if (skb_cloned(skb))
+
+		if (!skb->sk)
 			skb_set_owner_w(skb, sk);
 
 		/* Build DCCP header and checksum it. */
@@ -102,6 +100,7 @@ int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 
 		DCCP_INC_STATS(DCCP_MIB_OUTSEGS);
 
+		memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 		err = ip_queue_xmit(skb, 0);
 		if (err <= 0)
 			return err;
@@ -243,7 +242,8 @@ int dccp_write_xmit(struct sock *sk, struct sk_buff *skb, long *timeo)
 
 		err = dccp_transmit_skb(sk, skb);
 		ccid_hc_tx_packet_sent(dp->dccps_hc_tx_ccid, sk, 0, len);
-	}
+	} else
+		kfree_skb(skb);
 
 	return err;
 }

net/dccp/proto.c

@@ -402,8 +402,6 @@ int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	 *     This bug was _quickly_ found & fixed by just looking at an OSTRA
 	 *     generated callgraph 8) -acme
 	 */
-	if (rc != 0)
-		goto out_discard;
 out_release:
 	release_sock(sk);
 	return rc ? : len;

net/ipv4/tcp_output.c

@@ -435,17 +435,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss
 	int nsize, old_factor;
 	u16 flags;
 
-	if (unlikely(len >= skb->len)) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "TCP: seg_size=%u, mss=%u, seq=%u, "
-			       "end_seq=%u, skb->len=%u.\n", len, mss_now,
-			       TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
-			       skb->len);
-			WARN_ON(1);
-		}
-		return 0;
-	}
-
+	BUG_ON(len > skb->len);
 	nsize = skb_headlen(skb) - len;
 	if (nsize < 0)
 		nsize = 0;