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authorJiri Slaby <jirislaby@gmail.com>2008-07-15 17:44:43 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-07-29 16:36:28 -0400
commite86600c7b4e9b9b22ba51620613d6159bf5cf504 (patch)
tree2779aca37e692ff9910781035de6c7e5587fbd39 /drivers
parent274c7c3638cd027b46f76d0caef96c1bad8b6701 (diff)
Ath5k: fix dma operation
Don't sync - coherent mapping (descriptors) - before unmap, it's useless - (wrongly anyway -- for_cpu) beacon skb, it's just mapped, so by the device yet Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Nick Kossifidis <mickflemm@gmail.com> Cc: Luis R. Rodriguez <mcgrof@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath5k/base.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 8e9afb3b3a5..3aa22dc7165 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -1704,10 +1704,6 @@ ath5k_tasklet_rx(unsigned long data)
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);
-
/*
* last buffer must not be freed to ensure proper hardware
* function. When the hardware finishes also a packet next to
@@ -1771,8 +1767,6 @@ ath5k_tasklet_rx(unsigned long data)
goto next;
}
accept:
- pci_dma_sync_single_for_cpu(sc->pdev, bf->skbaddr,
- rs.rs_datalen, PCI_DMA_FROMDEVICE);
pci_unmap_single(sc->pdev, bf->skbaddr, sc->rxbufsize,
PCI_DMA_FROMDEVICE);
bf->skb = NULL;
@@ -1860,9 +1854,6 @@ ath5k_tx_processq(struct ath5k_softc *sc, struct ath5k_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, &ts);
if (unlikely(ret == -EINPROGRESS))
break;
@@ -2035,8 +2026,6 @@ ath5k_beacon_send(struct ath5k_softc *sc)
ATH5K_WARN(sc, "beacon queue %u didn't stop?\n", sc->bhalq);
/* NB: hw still stops DMA, so proceed */
}
- pci_dma_sync_single_for_cpu(sc->pdev, bf->skbaddr, bf->skb->len,
- PCI_DMA_TODEVICE);
ath5k_hw_put_tx_buf(ah, sc->bhalq, bf->daddr);
ath5k_hw_tx_start(ah, sc->bhalq);