Index: sys/compat/linuxkpi/common/include/linux/lockdep.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/lockdep.h
+++ sys/compat/linuxkpi/common/include/linux/lockdep.h
@@ -34,6 +34,8 @@
 
 #include <sys/lock.h>
 
+struct lockdep_map {
+};
 struct lock_class_key {
 };
 
@@ -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_ */