static void mld_set_v1_mode(struct inet6_dev *idev)
{
	/* RFC3810, relevant sections:
	 *  - 9.1. Robustness Variable
	 *  - 9.2. Query Interval
	 *  - 9.3. Query Response Interval
	 *  - 9.12. Older Version Querier Present Timeout
	 */
	unsigned long switchback;

	switchback = (idev->mc_qrv * idev->mc_qi) + idev->mc_qri;

	idev->mc_v1_seen = jiffies + switchback;
}
static void mld_set_v1_mode(struct inet6_dev *idev)
{
	 
	unsigned long switchback;

	switchback = (idev->mc_qrv * idev->mc_qi) + idev->mc_qri;

	idev->mc_v1_seen = jiffies + switchback;
}