[NET] net/core/dev.c: use LIST_HEAD instead of LIST_HEAD_INIT

single list_head variable initialized with LIST_HEAD_INIT could almost
always can be replaced with LIST_HEAD declaration, this shrinks the code
and looks better.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/dev.c b/net/core/dev.c
index d0d2675..12f66e5 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3492,7 +3492,7 @@
 
 /* Delayed registration/unregisteration */
 static DEFINE_SPINLOCK(net_todo_list_lock);
-static struct list_head net_todo_list = LIST_HEAD_INIT(net_todo_list);
+static LIST_HEAD(net_todo_list);
 
 static void net_set_todo(struct net_device *dev)
 {