ATM_VF_PARTIAL
set_bit(ATM_VF_PARTIAL, &vcc->flags);
clear_bit(ATM_VF_PARTIAL, &vcc->flags);
clear_bit(ATM_VF_PARTIAL, &vcc->flags);
if (test_bit(ATM_VF_PARTIAL, &vcc->flags))
set_bit(ATM_VF_PARTIAL, &vcc->flags);
if (test_bit(ATM_VF_PARTIAL, &vcc->flags)) {