__IXGBE_SERVICE_SCHED
clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state);
clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state);
!test_and_set_bit(__IXGBE_SERVICE_SCHED, &adapter->state))
BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED, &adapter->state));
clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state);