[PATCH net-next 1/4] net: add event_list to struct net and provide utility functions

[Salam Noureddine]

Signed-off-by: Salam Noureddine <nouredd...@arista.com>
---
 include/net/net_namespace.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 4089abc..4cf47de 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -58,6 +58,7 @@ struct net {
        struct list_head        list;           /* list of network namespaces */
        struct list_head        cleanup_list;   /* namespaces on death row */
        struct list_head        exit_list;      /* Use only net_mutex */
+       struct list_head        event_list;     /* net_device notifier list */
 
        struct user_namespace   *user_ns;       /* Owning user namespace */
        spinlock_t              nsid_lock;
@@ -380,4 +381,25 @@ static inline void fnhe_genid_bump(struct net *net)
        atomic_inc(&net->fnhe_genid);
 }
 
+#ifdef CONFIG_NET_NS
+static inline void net_add_event_list(struct list_head *head, struct net *net)
+{
+       if (!list_empty(&net->event_list))
+               list_add_tail(&net->event_list, head);
+}
+
+static inline void net_del_event_list(struct net *net)
+{
+       list_del_init(&net->event_list);
+}
+#else
+static inline void net_add_event_list(struct list_head *head, struct net *net)
+{
+}
+
+static inline void net_del_event_list(struct net *net)
+{
+}
+#endif
+
 #endif /* __NET_NET_NAMESPACE_H */
-- 
1.8.1.4