--- zzzz-none-000/linux-3.10.107/include/net/netevent.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/net/netevent.h	2021-02-04 17:41:59.000000000 +0000
@@ -26,8 +26,8 @@
 	NETEVENT_REDIRECT,	   /* arg is struct netevent_redirect ptr */
 };
 
-extern int register_netevent_notifier(struct notifier_block *nb);
-extern int unregister_netevent_notifier(struct notifier_block *nb);
-extern int call_netevent_notifiers(unsigned long val, void *v);
+int register_netevent_notifier(struct notifier_block *nb);
+int unregister_netevent_notifier(struct notifier_block *nb);
+int call_netevent_notifiers(unsigned long val, void *v);
 
 #endif