netns: build fix for net_alloc_generic

net_alloc_generic was defined in #ifdef CONFIG_NET_NS, but used
unconditionally. Move net_alloc_generic out of #ifdef.

Signed-off-by: Clemens Noss <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/core/net_namespace.c

···
 	goto out;
 }
 
-#ifdef CONFIG_NET_NS
-static struct kmem_cache *net_cachep;
-static struct workqueue_struct *netns_wq;
-
 static struct net_generic *net_alloc_generic(void)
 {
 	struct net_generic *ng;
···
 
 	return ng;
 }
+
+#ifdef CONFIG_NET_NS
+static struct kmem_cache *net_cachep;
+static struct workqueue_struct *netns_wq;
 
 static struct net *net_alloc(void)
 {