diff --git a/sys/compat/linuxkpi/common/include/linux/lockdep.h b/sys/compat/linuxkpi/common/include/linux/lockdep.h
--- a/sys/compat/linuxkpi/common/include/linux/lockdep.h
+++ b/sys/compat/linuxkpi/common/include/linux/lockdep.h
@@ -36,6 +36,8 @@
 
 struct lock_class_key {
 };
+struct lockdep_map {
+};
 
 #define	lockdep_set_class(lock, key)
 #define	lockdep_set_subclass(lock, sub)
@@ -85,4 +87,8 @@
 #define	mutex_acquire(...) do { } while (0)
 #define	mutex_release(...) do { } while (0)
 
+#define	lock_map_acquire(_map) do { } while (0)
+#define	lock_map_acquire_read(_map) do { } while (0)
+#define	lock_map_release(_map) do { } while (0)
+
 #endif /* _LINUX_LOCKDEP_H_ */