--- zzzz-none-000/linux-4.4.271/include/linux/debugobjects.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/linux/debugobjects.h	2023-04-19 10:22:30.000000000 +0000
@@ -64,6 +64,7 @@
 extern void
 debug_object_init_on_stack(void *addr, struct debug_obj_descr *descr);
 extern int debug_object_activate  (void *addr, struct debug_obj_descr *descr);
+extern int debug_object_get_state(void *addr);
 extern void debug_object_deactivate(void *addr, struct debug_obj_descr *descr);
 extern void debug_object_destroy   (void *addr, struct debug_obj_descr *descr);
 extern void debug_object_free      (void *addr, struct debug_obj_descr *descr);
@@ -81,6 +82,7 @@
 extern void debug_objects_early_init(void);
 extern void debug_objects_mem_init(void);
 #else
+static inline int debug_object_get_state(void *addr) { return 0; }
 static inline void
 debug_object_init      (void *addr, struct debug_obj_descr *descr) { }
 static inline void
@@ -98,6 +100,26 @@
 
 static inline void debug_objects_early_init(void) { }
 static inline void debug_objects_mem_init(void) { }
+
+#endif
+
+#ifdef CONFIG_DEBUG_MEM_USAGE
+
+struct debug_obj_trace {
+	struct hlist_node	node;
+	void			*addr;
+	void			*stack[9];
+	int			size;
+};
+
+extern void debug_object_trace_init(void *addr, void **stack, size_t size);
+extern void debug_object_trace_free(void *addr);
+
+extern void debug_mem_usage_init(void);
+
+#else
+static inline void debug_mem_usage_init(void) { }
+
 #endif
 
 #ifdef CONFIG_DEBUG_OBJECTS_FREE