Fix build when ATH_DEBUG is not defined.

sys/dev/ath/if_ath_rx_edma.c

@@ -618,8 +618,9 @@ ath_edma_rxfifo_flush(struct ath_softc *sc, HAL_RX_QUEUE qtype)
 
 	for (i = 0; i < re->m_fifolen; i++) {
 		if (re->m_fifo[i] != NULL) {
-			struct ath_buf *bf = re->m_fifo[i];
 #ifdef	ATH_DEBUG
+			struct ath_buf *bf = re->m_fifo[i];
+
 			if (sc->sc_debug & ATH_DEBUG_RECV_DESC)
 				ath_printrxbuf(sc, bf, 0, HAL_OK);
 #endif

sys/dev/ath/if_ath_tx.c

@@ -3583,8 +3583,10 @@ ath_tx_aggr_comp_aggr(struct ath_softc *sc, struct ath_buf *bf_first,
 		    "seq_st=%d\n",
 		    __func__, hasba, tx_ok, isaggr, seq_st);
 		/* XXX TODO: schedule an interface reset */
+#ifdef ATH_DEBUG
 		ath_printtxbuf(sc, bf_first,
 		    sc->sc_ac2q[atid->ac]->axq_qnum, 0, 0);
+#endif
 	}
 
 	/*