Q_INDEX_DMA_DONE
if (rt2x00queue_get_entry(queue, Q_INDEX_DMA_DONE) !=
entry = rt2x00queue_get_entry(queue, Q_INDEX_DMA_DONE);
entry = rt2x00queue_get_entry(queue, Q_INDEX_DMA_DONE);
queue->index[Q_INDEX_DMA_DONE],
rt2x00queue_index_inc(entry, Q_INDEX_DMA_DONE);
entry = rt2x00queue_get_entry(queue, Q_INDEX_DMA_DONE);