Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[pandora-kernel.git] / net / core / dev.c

diff --git a/net/core/dev.c b/net/core/dev.c
index 867adb2..0355ca5 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3957,6 +3957,7 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff
        }
        NAPI_GRO_CB(skb)->count = 1;
        NAPI_GRO_CB(skb)->age = jiffies;
+       NAPI_GRO_CB(skb)->last = skb;
        skb_shinfo(skb)->gso_size = skb_gro_len(skb);
        skb->next = napi->gro_list;
        napi->gro_list = skb;
@@ -4546,6 +4547,32 @@ void *netdev_adjacent_get_private(struct list_head *adj_list)
 }
 EXPORT_SYMBOL(netdev_adjacent_get_private);
 
+/**
+ * netdev_upper_get_next_dev_rcu - Get the next dev from upper list
+ * @dev: device
+ * @iter: list_head ** of the current position
+ *
+ * Gets the next device from the dev's upper list, starting from iter
+ * position. The caller must hold RCU read lock.
+ */
+struct net_device *netdev_upper_get_next_dev_rcu(struct net_device *dev,
+                                                struct list_head **iter)
+{
+       struct netdev_adjacent *upper;
+
+       WARN_ON_ONCE(!rcu_read_lock_held() && !lockdep_rtnl_is_held());
+
+       upper = list_entry_rcu((*iter)->next, struct netdev_adjacent, list);
+
+       if (&upper->list == &dev->adj_list.upper)
+               return NULL;
+
+       *iter = &upper->list;
+
+       return upper->dev;
+}
+EXPORT_SYMBOL(netdev_upper_get_next_dev_rcu);
+
 /**
  * netdev_all_upper_get_next_dev_rcu - Get the next dev from upper list
  * @dev: device
@@ -4627,6 +4654,32 @@ void *netdev_lower_get_next_private_rcu(struct net_device *dev,
 }
 EXPORT_SYMBOL(netdev_lower_get_next_private_rcu);
 
+/**
+ * netdev_lower_get_next - Get the next device from the lower neighbour
+ *                         list
+ * @dev: device
+ * @iter: list_head ** of the current position
+ *
+ * Gets the next netdev_adjacent from the dev's lower neighbour
+ * list, starting from iter position. The caller must hold RTNL lock or
+ * its own locking that guarantees that the neighbour lower
+ * list will remain unchainged.
+ */
+void *netdev_lower_get_next(struct net_device *dev, struct list_head **iter)
+{
+       struct netdev_adjacent *lower;
+
+       lower = list_entry((*iter)->next, struct netdev_adjacent, list);
+
+       if (&lower->list == &dev->adj_list.lower)
+               return NULL;
+
+       *iter = &lower->list;
+
+       return lower->dev;
+}
+EXPORT_SYMBOL(netdev_lower_get_next);
+
 /**
  * netdev_lower_get_first_private_rcu - Get the first ->private from the
  *                                    lower neighbour list, RCU
@@ -5077,6 +5130,30 @@ void *netdev_lower_dev_get_private(struct net_device *dev,
 }
 EXPORT_SYMBOL(netdev_lower_dev_get_private);
 
+
+int dev_get_nest_level(struct net_device *dev,
+                      bool (*type_check)(struct net_device *dev))
+{
+       struct net_device *lower = NULL;
+       struct list_head *iter;
+       int max_nest = -1;
+       int nest;
+
+       ASSERT_RTNL();
+
+       netdev_for_each_lower_dev(dev, lower, iter) {
+               nest = dev_get_nest_level(lower, type_check);
+               if (max_nest < nest)
+                       max_nest = nest;
+       }
+
+       if (type_check(dev))
+               max_nest++;
+
+       return max_nest;
+}
+EXPORT_SYMBOL(dev_get_nest_level);
+
 static void dev_change_rx_flags(struct net_device *dev, int flags)
 {
        const struct net_device_ops *ops = dev->netdev_ops;
@@ -5242,7 +5319,6 @@ void __dev_set_rx_mode(struct net_device *dev)
        if (ops->ndo_set_rx_mode)
                ops->ndo_set_rx_mode(dev);
 }
-EXPORT_SYMBOL(__dev_set_rx_mode);
 
 void dev_set_rx_mode(struct net_device *dev)
 {
@@ -5547,7 +5623,7 @@ static int dev_new_index(struct net *net)
 
 /* Delayed registration/unregisteration */
 static LIST_HEAD(net_todo_list);
-static DECLARE_WAIT_QUEUE_HEAD(netdev_unregistering_wq);
+DECLARE_WAIT_QUEUE_HEAD(netdev_unregistering_wq);
 
 static void net_set_todo(struct net_device *dev)
 {