diff --git a/fs/vfs/operation/fs_file_mapping.c b/fs/vfs/operation/fs_file_mapping.c
index b143df41..8842579f 100644
--- a/fs/vfs/operation/fs_file_mapping.c
+++ b/fs/vfs/operation/fs_file_mapping.c
@@ -294,8 +294,10 @@ out:
     return ret;
 }
 
-struct file_map* GetFileMappingList()
+#ifdef LOSCFG_DEBUG_VERSION
+struct file_map* GetFileMappingList(void)
 {
     return &g_file_mapping;
 }
 #endif
+#endif