commit d7aa6b9a2a43ddbf4f55b55a198cb2b91b2b565a
Author: Jiri Slaby <ku@bellona.localdomain>
Date:   Tue Jul 24 12:22:25 2007 +0200

    sync dma descriptors

diff --git a/ath.c b/ath.c
index c7a7a20..510f5e6 100644
--- a/ath.c
+++ b/ath.c
@@ -177,6 +177,9 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
 	list_for_each_entry_safe(bf, bf0, &txq->q, list) {
 		ds = bf->desc;
 
+		/* TODO only one segment */
+		pci_dma_sync_single_for_cpu(sc->pdev, sc->desc_daddr,
+				sc->desc_len, PCI_DMA_FROMDEVICE);
 		ret = sc->ah->ah_proc_tx_desc(sc->ah, ds);
 		if (unlikely(ret == -EINPROGRESS))
 			break;
@@ -349,6 +352,11 @@ static void ath_tasklet_rx(unsigned long data)
 		BUG_ON(bf->skb == NULL);
 		skb = bf->skb;
 		ds = bf->desc;
+
+		/* TODO only one segment */
+		pci_dma_sync_single_for_cpu(sc->pdev, sc->desc_daddr,
+				sc->desc_len, PCI_DMA_FROMDEVICE);
+
 		if (unlikely(ds->ds_link == bf->daddr)) /* this is the end */
 			break;