ATH9K_HTC_OP_TX_QUEUES_STOP
priv->tx.flags &= ~ATH9K_HTC_OP_TX_QUEUES_STOP;
!(priv->tx.flags & ATH9K_HTC_OP_TX_QUEUES_STOP)) {
priv->tx.flags |= ATH9K_HTC_OP_TX_QUEUES_STOP;
(priv->tx.flags & ATH9K_HTC_OP_TX_QUEUES_STOP)) {
priv->tx.flags &= ~ATH9K_HTC_OP_TX_QUEUES_STOP;