1 files changed, 15 insertions, 10 deletions

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 390d750449ce..69b146843a20 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -483,7 +483,7 @@ static int udpv6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
 	}
 
 	if (ulen < skb->len) {
-		if (__pskb_trim(skb, ulen))
+		if (pskb_trim_rcsum(skb, ulen))
 			goto discard;
 		saddr = &skb->nh.ipv6h->saddr;
 		daddr = &skb->nh.ipv6h->daddr;
@@ -637,6 +637,7 @@ static int udpv6_sendmsg(struct kiocb *iocb, struct sock *sk,
 	int addr_len = msg->msg_namelen;
 	int ulen = len;
 	int hlimit = -1;
+	int tclass = -1;
 	int corkreq = up->corkflag || msg->msg_flags&MSG_MORE;
 	int err;
 
@@ -758,7 +759,7 @@ do_udp_sendmsg:
 		memset(opt, 0, sizeof(struct ipv6_txoptions));
 		opt->tot_len = sizeof(*opt);
 
-		err = datagram_send_ctl(msg, fl, opt, &hlimit);
+		err = datagram_send_ctl(msg, fl, opt, &hlimit, &tclass);
 		if (err < 0) {
 			fl6_sock_release(flowlabel);
 			return err;
@@ -773,8 +774,7 @@ do_udp_sendmsg:
 	}
 	if (opt == NULL)
 		opt = np->opt;
-	if (flowlabel)
-		opt = fl6_merge_options(&opt_space, flowlabel, opt);
+	opt = fl6_merge_options(&opt_space, flowlabel, opt);
 
 	fl->proto = IPPROTO_UDP;
 	ipv6_addr_copy(&fl->fl6_dst, daddr);
@@ -799,10 +799,8 @@ do_udp_sendmsg:
 	if (final_p)
 		ipv6_addr_copy(&fl->fl6_dst, final_p);
 
-	if ((err = xfrm_lookup(&dst, fl, sk, 0)) < 0) {
-		dst_release(dst);
+	if ((err = xfrm_lookup(&dst, fl, sk, 0)) < 0)
 		goto out;
-	}
 
 	if (hlimit < 0) {
 		if (ipv6_addr_is_multicast(&fl->fl6_dst))
@@ -815,6 +813,12 @@ do_udp_sendmsg:
 			hlimit = ipv6_get_hoplimit(dst->dev);
 	}
 
+	if (tclass < 0) {
+		tclass = np->tclass;
+		if (tclass < 0)
+			tclass = 0;
+	}
+
 	if (msg->msg_flags&MSG_CONFIRM)
 		goto do_confirm;
 back_from_confirm:
@@ -834,9 +838,10 @@ back_from_confirm:
 
 do_append_data:
 	up->len += ulen;
-	err = ip6_append_data(sk, ip_generic_getfrag, msg->msg_iov, ulen, sizeof(struct udphdr),
-			      hlimit, opt, fl, (struct rt6_info*)dst,
-			      corkreq ? msg->msg_flags|MSG_MORE : msg->msg_flags);
+	err = ip6_append_data(sk, ip_generic_getfrag, msg->msg_iov, ulen,
+		sizeof(struct udphdr), hlimit, tclass, opt, fl,
+		(struct rt6_info*)dst,
+		corkreq ? msg->msg_flags|MSG_MORE : msg->msg_flags);
 	if (err)
 		udp_v6_flush_pending_frames(sk);
 	else if (!corkreq)