if (instance->u.atm_dev->signal != ATM_PHY_SIG_LOST) {
instance->u.atm_dev->signal = ATM_PHY_SIG_LOST;
printk(KERN_NOTICE "ADSL line is down\n");
if (instance->u.atm_dev->signal != ATM_PHY_SIG_LOST) {
instance->u.atm_dev->signal = ATM_PHY_SIG_LOST;
printk(KERN_NOTICE "ADSL line is down\n");