diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index edec780..cb4b745 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -503,6 +503,8 @@
 }
 EXPORT_SYMBOL(__dynamic_dev_dbg);
 
+#ifdef CONFIG_NET
+
 int __dynamic_netdev_dbg(struct _ddebug *descriptor,
 		      const struct net_device *dev, const char *fmt, ...)
 {
@@ -524,6 +526,8 @@
 }
 EXPORT_SYMBOL(__dynamic_netdev_dbg);
 
+#endif
+
 static __initdata char ddebug_setup_string[1024];
 static __init int ddebug_setup_query(char *str)
 {