1 files changed, 24 insertions, 17 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 3721db716350..45fa2f11f84d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2286,7 +2286,7 @@ out:
 }
 EXPORT_SYMBOL(skb_checksum_help);
 
-__be16 skb_network_protocol(struct sk_buff *skb)
+__be16 skb_network_protocol(struct sk_buff *skb, int *depth)
 {
         __be16 type = skb->protocol;
         int vlan_depth = ETH_HLEN;
@@ -2313,6 +2313,8 @@ __be16 skb_network_protocol(struct sk_buff *skb)
                 vlan_depth += VLAN_HLEN;
         }
 
+        *depth = vlan_depth;
+
         return type;
 }
 
@@ -2326,12 +2328,13 @@ struct sk_buff *skb_mac_gso_segment(struct sk_buff *skb,
 {
         struct sk_buff *segs = ERR_PTR(-EPROTONOSUPPORT);
         struct packet_offload *ptype;
-        __be16 type = skb_network_protocol(skb);
+        int vlan_depth = skb->mac_len;
+        __be16 type = skb_network_protocol(skb, &vlan_depth);
 
         if (unlikely(!type))
                 return ERR_PTR(-EINVAL);
 
-        __skb_pull(skb, skb->mac_len);
+        __skb_pull(skb, vlan_depth);
 
         rcu_read_lock();
         list_for_each_entry_rcu(ptype, &offload_base, list) {
@@ -2420,7 +2423,7 @@ EXPORT_SYMBOL(netdev_rx_csum_fault);
  * 2. No high memory really exists on this machine.
  */
 
-static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
+static int illegal_highdma(const struct net_device *dev, struct sk_buff *skb)
 {
 #ifdef CONFIG_HIGHMEM
         int i;
@@ -2495,34 +2498,38 @@ static int dev_gso_segment(struct sk_buff *skb, netdev_features_t features)
 }
 
 static netdev_features_t harmonize_features(struct sk_buff *skb,
-        netdev_features_t features)
+                                            const struct net_device *dev,
+                                            netdev_features_t features)
 {
+        int tmp;
+
         if (skb->ip_summed != CHECKSUM_NONE &&
-            !can_checksum_protocol(features, skb_network_protocol(skb))) {
+            !can_checksum_protocol(features, skb_network_protocol(skb, &tmp))) {
                 features &= ~NETIF_F_ALL_CSUM;
-        } else if (illegal_highdma(skb->dev, skb)) {
+        } else if (illegal_highdma(dev, skb)) {
                 features &= ~NETIF_F_SG;
         }
 
         return features;
 }
 
-netdev_features_t netif_skb_features(struct sk_buff *skb)
+netdev_features_t netif_skb_dev_features(struct sk_buff *skb,
+                                         const struct net_device *dev)
 {
         __be16 protocol = skb->protocol;
-        netdev_features_t features = skb->dev->features;
+        netdev_features_t features = dev->features;
 
-        if (skb_shinfo(skb)->gso_segs > skb->dev->gso_max_segs)
+        if (skb_shinfo(skb)->gso_segs > dev->gso_max_segs)
                 features &= ~NETIF_F_GSO_MASK;
 
         if (protocol == htons(ETH_P_8021Q) || protocol == htons(ETH_P_8021AD)) {
                 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
                 protocol = veh->h_vlan_encapsulated_proto;
         } else if (!vlan_tx_tag_present(skb)) {
-                return harmonize_features(skb, features);
+                return harmonize_features(skb, dev, features);
         }
 
-        features &= (skb->dev->vlan_features | NETIF_F_HW_VLAN_CTAG_TX |
+        features &= (dev->vlan_features | NETIF_F_HW_VLAN_CTAG_TX |
                                                NETIF_F_HW_VLAN_STAG_TX);
 
         if (protocol == htons(ETH_P_8021Q) || protocol == htons(ETH_P_8021AD))
@@ -2530,9 +2537,9 @@ netdev_features_t netif_skb_features(struct sk_buff *skb)
                                 NETIF_F_GEN_CSUM | NETIF_F_HW_VLAN_CTAG_TX |
                                 NETIF_F_HW_VLAN_STAG_TX;
 
-        return harmonize_features(skb, features);
+        return harmonize_features(skb, dev, features);
 }
-EXPORT_SYMBOL(netif_skb_features);
+EXPORT_SYMBOL(netif_skb_dev_features);
 
 int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
                         struct netdev_queue *txq)
@@ -2803,7 +2810,7 @@ EXPORT_SYMBOL(dev_loopback_xmit);
  *      the BH enable code must have IRQs enabled so that it will not deadlock.
  *          --BLG
  */
-int __dev_queue_xmit(struct sk_buff *skb, void *accel_priv)
+static int __dev_queue_xmit(struct sk_buff *skb, void *accel_priv)
 {
         struct net_device *dev = skb->dev;
         struct netdev_queue *txq;
@@ -4637,7 +4644,7 @@ struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev)
 }
 EXPORT_SYMBOL(netdev_master_upper_dev_get_rcu);
 
-int netdev_adjacent_sysfs_add(struct net_device *dev,
+static int netdev_adjacent_sysfs_add(struct net_device *dev,
                               struct net_device *adj_dev,
                               struct list_head *dev_list)
 {
@@ -4647,7 +4654,7 @@ int netdev_adjacent_sysfs_add(struct net_device *dev,
         return sysfs_create_link(&(dev->dev.kobj), &(adj_dev->dev.kobj),
                                  linkname);
 }
-void netdev_adjacent_sysfs_del(struct net_device *dev,
+static void netdev_adjacent_sysfs_del(struct net_device *dev,
                                char *name,
                                struct list_head *dev_list)
 {