4 files changed, 25 insertions, 12 deletions

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index a2ad1525057..25c21332e9c 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -321,7 +321,7 @@ static int register_vlan_device(struct net_device *real_dev, u16 vlan_id)
 	if (new_dev == NULL)
 		return -ENOBUFS;
 
-	new_dev->real_num_tx_queues = real_dev->real_num_tx_queues;
+	netif_copy_real_num_queues(new_dev, real_dev);
 	dev_net_set(new_dev, net);
 	/* need 4 bytes for extra VLAN header info,
 	 * hope the underlying device can handle it.
@@ -525,6 +525,10 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
 		break;
 
 	case NETDEV_UNREGISTER:
+		/* twiddle thumbs on netns device moves */
+		if (dev->reg_state != NETREG_UNREGISTERING)
+			break;
+
 		/* Delete all VLANs for this dev. */
 		grp->killall = 1;
 
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index 8d9503ad01d..b26ce343072 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -25,6 +25,7 @@ struct vlan_priority_tci_mapping {
  *	@rx_multicast: number of received multicast packets
  *	@syncp: synchronization point for 64bit counters
  *	@rx_errors: number of errors
+ *	@rx_dropped: number of dropped packets
  */
 struct vlan_rx_stats {
 	u64			rx_packets;
@@ -32,6 +33,7 @@ struct vlan_rx_stats {
 	u64			rx_multicast;
 	struct u64_stats_sync	syncp;
 	unsigned long		rx_errors;
+	unsigned long		rx_dropped;
 };
 
 /**
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 0eb96f7e44b..b6d55a9304f 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -30,7 +30,7 @@ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
 		skb->pkt_type = PACKET_OTHERHOST;
 	}
 
-	return (polling ? netif_receive_skb(skb) : netif_rx(skb));
+	return polling ? netif_receive_skb(skb) : netif_rx(skb);
 
 drop:
 	dev_kfree_skb_any(skb);
@@ -38,12 +38,12 @@ drop:
 }
 EXPORT_SYMBOL(__vlan_hwaccel_rx);
 
-int vlan_hwaccel_do_receive(struct sk_buff *skb)
+void vlan_hwaccel_do_receive(struct sk_buff *skb)
 {
 	struct net_device *dev = skb->dev;
 	struct vlan_rx_stats     *rx_stats;
 
-	skb->dev = vlan_dev_info(dev)->real_dev;
+	skb->dev = vlan_dev_real_dev(dev);
 	netif_nit_deliver(skb);
 
 	skb->dev = dev;
@@ -72,7 +72,6 @@ int vlan_hwaccel_do_receive(struct sk_buff *skb)
 		break;
 	}
 	u64_stats_update_end(&rx_stats->syncp);
-	return 0;
 }
 
 struct net_device *vlan_dev_real_dev(const struct net_device *dev)
@@ -112,9 +111,12 @@ vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
 	}
 
 	for (p = napi->gro_list; p; p = p->next) {
-		NAPI_GRO_CB(p)->same_flow =
-			p->dev == skb->dev && !compare_ether_header(
-				skb_mac_header(p), skb_gro_mac_header(skb));
+		unsigned long diffs;
+
+		diffs = (unsigned long)p->dev ^ (unsigned long)skb->dev;
+		diffs |= compare_ether_header(skb_mac_header(p),
+					      skb_gro_mac_header(skb));
+		NAPI_GRO_CB(p)->same_flow = !diffs;
 		NAPI_GRO_CB(p)->flush = 0;
 	}
 
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 3bccdd12a26..f6fbcc0f1af 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -177,8 +177,8 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
 	} else {
 		skb->dev = vlan_dev;
 
-		rx_stats = per_cpu_ptr(vlan_dev_info(skb->dev)->vlan_rx_stats,
-					smp_processor_id());
+		rx_stats = this_cpu_ptr(vlan_dev_info(skb->dev)->vlan_rx_stats);
+
 		u64_stats_update_begin(&rx_stats->syncp);
 		rx_stats->rx_packets++;
 		rx_stats->rx_bytes += skb->len;
@@ -225,7 +225,10 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
 		}
 	}
 
-	netif_rx(skb);
+	if (unlikely(netif_rx(skb) == NET_RX_DROP)) {
+		if (rx_stats)
+			rx_stats->rx_dropped++;
+	}
 	rcu_read_unlock();
 	return NET_RX_SUCCESS;
 
@@ -843,13 +846,15 @@ static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, st
 			accum.rx_packets += rxpackets;
 			accum.rx_bytes   += rxbytes;
 			accum.rx_multicast += rxmulticast;
-			/* rx_errors is an ulong, not protected by syncp */
+			/* rx_errors, rx_dropped are ulong, not protected by syncp */
 			accum.rx_errors  += p->rx_errors;
+			accum.rx_dropped += p->rx_dropped;
 		}
 		stats->rx_packets = accum.rx_packets;
 		stats->rx_bytes   = accum.rx_bytes;
 		stats->rx_errors  = accum.rx_errors;
 		stats->multicast  = accum.rx_multicast;
+		stats->rx_dropped = accum.rx_dropped;
 	}
 	return stats;
 }