--- zzzz-none-000/linux-3.10.107/include/net/psnap.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/net/psnap.h	2021-02-04 17:41:59.000000000 +0000
@@ -1,11 +1,11 @@
 #ifndef _NET_PSNAP_H
 #define _NET_PSNAP_H
 
-extern struct datalink_proto *
+struct datalink_proto *
 register_snap_client(const unsigned char *desc,
 		     int (*rcvfunc)(struct sk_buff *, struct net_device *,
 				    struct packet_type *,
 				    struct net_device *orig_dev));
-extern void unregister_snap_client(struct datalink_proto *proto);
+void unregister_snap_client(struct datalink_proto *proto);
 
 #endif