ATH9K_TX_DATA_UNDERRUN
ts->ts_flags |= ATH9K_TX_DATA_UNDERRUN;
ts->ts_flags |= ATH9K_TX_DATA_UNDERRUN;
if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
if (unlikely(ts->ts_flags & (ATH9K_TX_DATA_UNDERRUN |