soft_cleanup_extra_attr
void soft_cleanup_extra_attr(soft_object_t *object_p);
soft_cleanup_extra_attr(old);
soft_cleanup_extra_attr(old);
soft_cleanup_extra_attr(new_objp);
soft_cleanup_extra_attr(new_objp);
soft_cleanup_extra_attr(old_object);
soft_cleanup_extra_attr(objp);