--- zzzz-none-000/linux-3.10.107/include/linux/genetlink.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/linux/genetlink.h	2021-02-04 17:41:59.000000000 +0000
@@ -8,9 +8,13 @@
 extern void genl_lock(void);
 extern void genl_unlock(void);
 #ifdef CONFIG_LOCKDEP
-extern int lockdep_genl_is_held(void);
+extern bool lockdep_genl_is_held(void);
 #endif
 
+/* for synchronisation between af_netlink and genetlink */
+extern atomic_t genl_sk_destructing_cnt;
+extern wait_queue_head_t genl_sk_destructing_waitq;
+
 /**
  * rcu_dereference_genl - rcu_dereference with debug checking
  * @p: The pointer to read, prior to dereferencing