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-rw-r--r--include/linux/netdevice.h25
1 files changed, 24 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ced61f8..d146be4 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -708,8 +708,10 @@ struct net_device
void (*poll_controller)(struct net_device *dev);
#endif
+#ifdef CONFIG_NET_NS
/* Network namespace this network device is inside */
struct net *nd_net;
+#endif
/* bridge stuff */
struct net_bridge_port *br_port;
@@ -737,6 +739,27 @@ struct net_device
#define NETDEV_ALIGN 32
#define NETDEV_ALIGN_CONST (NETDEV_ALIGN - 1)
+/*
+ * Net namespace inlines
+ */
+static inline
+struct net *dev_net(const struct net_device *dev)
+{
+#ifdef CONFIG_NET_NS
+ return dev->nd_net;
+#else
+ return &init_net;
+#endif
+}
+
+static inline
+void dev_net_set(struct net_device *dev, const struct net *net)
+{
+#ifdef CONFIG_NET_NS
+ dev->nd_dev = net;
+#endif
+}
+
/**
* netdev_priv - access network device private data
* @dev: network device
@@ -813,7 +836,7 @@ static inline struct net_device *next_net_device(struct net_device *dev)
struct list_head *lh;
struct net *net;
- net = dev->nd_net;
+ net = dev_net(dev);
lh = dev->dev_list.next;
return lh == &net->dev_base_head ? NULL : net_device_entry(lh);
}
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