static void mld_ifc_stop_work(struct inet6_dev *idev)
{
	idev->mc_ifc_count = 0;
	if (cancel_delayed_work(&idev->mc_ifc_work))
		__in6_dev_put(idev);
}
static void mld_ifc_stop_work(struct inet6_dev *idev)
{
	idev->mc_ifc_count = 0;
	if (cancel_delayed_work(&idev->mc_ifc_work))
		__in6_dev_put(idev);
}