debugobjects: Extend to assert that an object is initialized

[cascardo/linux.git] / lib / debugobjects.c

diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index b7a5305..77cb245 100644 (file)
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -570,6 +570,44 @@ out_unlock:
        raw_spin_unlock_irqrestore(&db->lock, flags);
 }
 
+/**
+ * debug_object_assert_init - debug checks when object should be init-ed
+ * @addr:      address of the object
+ * @descr:     pointer to an object specific debug description structure
+ */
+void debug_object_assert_init(void *addr, struct debug_obj_descr *descr)
+{
+       struct debug_bucket *db;
+       struct debug_obj *obj;
+       unsigned long flags;
+
+       if (!debug_objects_enabled)
+               return;
+
+       db = get_bucket((unsigned long) addr);
+
+       raw_spin_lock_irqsave(&db->lock, flags);
+
+       obj = lookup_object(addr, db);
+       if (!obj) {
+               struct debug_obj o = { .object = addr,
+                                      .state = ODEBUG_STATE_NOTAVAILABLE,
+                                      .descr = descr };
+
+               raw_spin_unlock_irqrestore(&db->lock, flags);
+               /*
+                * Maybe the object is static.  Let the type specific
+                * code decide what to do.
+                */
+               if (debug_object_fixup(descr->fixup_assert_init, addr,
+                                      ODEBUG_STATE_NOTAVAILABLE))
+                       debug_print_object(&o, "assert_init");
+               return;
+       }
+
+       raw_spin_unlock_irqrestore(&db->lock, flags);
+}
+
 /**
  * debug_object_active_state - debug checks object usage state machine
  * @addr:      address of the object