Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 include/exec/memory.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 847c84c86db0..32bb430acdc4 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1246,6 +1246,7 @@ void memory_region_init(MemoryRegion *mr,
  * memory_region_ref: Add a reference to a memory region
  *
  * This function adds a reference to the owner if present.
+ * The owner must not call this function as it results in a circular reference.
  * See docs/devel/memory.rst to know about owner.
  *
  * @mr: the #MemoryRegion

-- 
2.45.2