--- zzzz-none-000/linux-3.10.107/include/linux/fcdevice.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/linux/fcdevice.h	2021-02-04 17:41:59.000000000 +0000
@@ -27,7 +27,7 @@
 #include <linux/if_fc.h>
 
 #ifdef __KERNEL__
-extern struct net_device *alloc_fcdev(int sizeof_priv);
+struct net_device *alloc_fcdev(int sizeof_priv);
 #endif
 
 #endif	/* _LINUX_FCDEVICE_H */