Merge branch 'next' into for-linus

Prepare input updates for 4.12 merge window.

1 files changed, 23 insertions, 24 deletions

diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 514f7bcf7c63..c82301ce3fff 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -796,9 +796,8 @@ static void ovs_fragment(struct net *net, struct vport *vport,
 		unsigned long orig_dst;
 		struct rt6_info ovs_rt;
 
-		if (!v6ops) {
+		if (!v6ops)
 			goto err;
-		}
 
 		prepare_frag(vport, skb, orig_network_offset,
 			     ovs_key_mac_proto(key));
@@ -1074,6 +1073,8 @@ static int execute_masked_set_action(struct sk_buff *skb,
 	case OVS_KEY_ATTR_CT_ZONE:
 	case OVS_KEY_ATTR_CT_MARK:
 	case OVS_KEY_ATTR_CT_LABELS:
+	case OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4:
+	case OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6:
 		err = -EINVAL;
 		break;
 	}
@@ -1141,12 +1142,6 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
 			      struct sw_flow_key *key,
 			      const struct nlattr *attr, int len)
 {
-	/* Every output action needs a separate clone of 'skb', but the common
-	 * case is just a single output action, so that doing a clone and
-	 * then freeing the original skbuff is wasteful.  So the following code
-	 * is slightly obscure just to avoid that.
-	 */
-	int prev_port = -1;
 	const struct nlattr *a;
 	int rem;
 
@@ -1154,20 +1149,28 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
 	     a = nla_next(a, &rem)) {
 		int err = 0;
 
-		if (unlikely(prev_port != -1)) {
-			struct sk_buff *out_skb = skb_clone(skb, GFP_ATOMIC);
-
-			if (out_skb)
-				do_output(dp, out_skb, prev_port, key);
+		switch (nla_type(a)) {
+		case OVS_ACTION_ATTR_OUTPUT: {
+			int port = nla_get_u32(a);
+			struct sk_buff *clone;
+
+			/* Every output action needs a separate clone
+			 * of 'skb', In case the output action is the
+			 * last action, cloning can be avoided.
+			 */
+			if (nla_is_last(a, rem)) {
+				do_output(dp, skb, port, key);
+				/* 'skb' has been used for output.
+				 */
+				return 0;
+			}
 
+			clone = skb_clone(skb, GFP_ATOMIC);
+			if (clone)
+				do_output(dp, clone, port, key);
 			OVS_CB(skb)->cutlen = 0;
-			prev_port = -1;
-		}
-
-		switch (nla_type(a)) {
-		case OVS_ACTION_ATTR_OUTPUT:
-			prev_port = nla_get_u32(a);
 			break;
+		}
 
 		case OVS_ACTION_ATTR_TRUNC: {
 			struct ovs_action_trunc *trunc = nla_data(a);
@@ -1257,11 +1260,7 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
 		}
 	}
 
-	if (prev_port != -1)
-		do_output(dp, skb, prev_port, key);
-	else
-		consume_skb(skb);
-
+	consume_skb(skb);
 	return 0;
 }