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ath9k: fix dma direction for map/unmap in ath_rx_tasklet 

For edma, we should use DMA_BIDIRECTIONAL, or else use
DMA_FROM_DEVICE.

This is found to address "BUG at arch/x86/mm/physaddr.c:5"
as described here:

http://lkml.org/lkml/2010/7/14/21

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ming Lei 2010-05-14 21:15:38 +08:00 committed by John W. Linville
parent 06ee1c2613
commit f792af250d
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/ath/ath9k/recv.c
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@ -844,9 +844,9 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
int dma_type;
if (edma)
dma_type = DMA_FROM_DEVICE;
else
dma_type = DMA_BIDIRECTIONAL;
else
dma_type = DMA_FROM_DEVICE;
qtype = hp ? ATH9K_RX_QUEUE_HP : ATH9K_RX_QUEUE_LP;
spin_lock_bh(&sc->rx.rxbuflock);