4 files changed, 28 insertions, 12 deletions

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 917ecb9..d24c464 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -18,6 +18,8 @@
  *		2 of the License, or (at your option) any later version.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/capability.h>
 #include <linux/module.h>
 #include <linux/netdevice.h>
@@ -149,13 +151,13 @@ int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id)
 	const struct net_device_ops *ops = real_dev->netdev_ops;
 
 	if (real_dev->features & NETIF_F_VLAN_CHALLENGED) {
-		pr_info("8021q: VLANs not supported on %s\n", name);
+		pr_info("VLANs not supported on %s\n", name);
 		return -EOPNOTSUPP;
 	}
 
 	if ((real_dev->features & NETIF_F_HW_VLAN_FILTER) &&
 	    (!ops->ndo_vlan_rx_add_vid || !ops->ndo_vlan_rx_kill_vid)) {
-		pr_info("8021q: Device %s has buggy VLAN hw accel\n", name);
+		pr_info("Device %s has buggy VLAN hw accel\n", name);
 		return -EOPNOTSUPP;
 	}
 
@@ -344,13 +346,12 @@ static void __vlan_device_event(struct net_device *dev, unsigned long event)
 	case NETDEV_CHANGENAME:
 		vlan_proc_rem_dev(dev);
 		if (vlan_proc_add_dev(dev) < 0)
-			pr_warning("8021q: failed to change proc name for %s\n",
-					dev->name);
+			pr_warn("failed to change proc name for %s\n",
+				dev->name);
 		break;
 	case NETDEV_REGISTER:
 		if (vlan_proc_add_dev(dev) < 0)
-			pr_warning("8021q: failed to add proc entry for %s\n",
-					dev->name);
+			pr_warn("failed to add proc entry for %s\n", dev->name);
 		break;
 	case NETDEV_UNREGISTER:
 		vlan_proc_rem_dev(dev);
@@ -374,7 +375,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
 	if ((event == NETDEV_UP) &&
 	    (dev->features & NETIF_F_HW_VLAN_FILTER) &&
 	    dev->netdev_ops->ndo_vlan_rx_add_vid) {
-		pr_info("8021q: adding VLAN 0 to HW filter on device %s\n",
+		pr_info("adding VLAN 0 to HW filter on device %s\n",
 			dev->name);
 		dev->netdev_ops->ndo_vlan_rx_add_vid(dev, 0);
 	}
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index 9da07e3..b132f54 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -74,6 +74,18 @@ static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
 	return netdev_priv(dev);
 }
 
+/* Must be invoked with rcu_read_lock or with RTNL. */
+static inline struct net_device *vlan_find_dev(struct net_device *real_dev,
+					       u16 vlan_id)
+{
+	struct vlan_group *grp = rcu_dereference_rtnl(real_dev->vlgrp);
+
+	if (grp)
+		return vlan_group_get_device(grp, vlan_id);
+
+	return NULL;
+}
+
 /* found in vlan_dev.c */
 void vlan_dev_set_ingress_priority(const struct net_device *dev,
 				   u32 skb_prio, u16 vlan_prio);
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 6e82148..934e221 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -20,6 +20,8 @@
  *		2 of the License, or (at your option) any later version.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/skbuff.h>
@@ -55,7 +57,7 @@ static int vlan_dev_rebuild_header(struct sk_buff *skb)
 		return arp_find(veth->h_dest, skb);
 #endif
 	default:
-		pr_debug("%s: unable to resolve type %X addresses.\n",
+		pr_debug("%s: unable to resolve type %X addresses\n",
 			 dev->name, ntohs(veth->h_vlan_encapsulated_proto));
 
 		memcpy(veth->h_source, dev->dev_addr, ETH_ALEN);
@@ -595,8 +597,7 @@ static u32 vlan_dev_fix_features(struct net_device *dev, u32 features)
 	features &= real_dev->features;
 	features &= real_dev->vlan_features;
 
-	if (old_features & NETIF_F_SOFT_FEATURES)
-		features |= old_features & NETIF_F_SOFT_FEATURES;
+	features |= old_features & NETIF_F_SOFT_FEATURES;
 
 	if (dev_ethtool_get_rx_csum(real_dev))
 		features |= NETIF_F_RXCSUM;
diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c
index d940c49..d34b6da 100644
--- a/net/8021q/vlanproc.c
+++ b/net/8021q/vlanproc.c
@@ -17,6 +17,8 @@
  * Jan 20, 1998        Ben Greear     Initial Version
  *****************************************************************************/
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
@@ -155,7 +157,7 @@ int __net_init vlan_proc_init(struct net *net)
 	return 0;
 
 err:
-	pr_err("%s: can't create entry in proc filesystem!\n", __func__);
+	pr_err("can't create entry in proc filesystem!\n");
 	vlan_proc_cleanup(net);
 	return -ENOBUFS;
 }
@@ -229,7 +231,7 @@ static void *vlan_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 
 	++*pos;
 
-	dev = (struct net_device *)v;
+	dev = v;
 	if (v == SEQ_START_TOKEN)
 		dev = net_device_entry(&net->dev_base_head);