We should only tell the hardware its capable of DMA'ing to us only what we asked dev_alloc_skb(). Prior to this it is possible a large RX'd frame could have corrupted DMA data but for us but we were saved only because we were previously also pci_map_single()'ing the same large value. The issue prior to this though was we were unmapping a smaller amount which the prior DMA patch fixed. Signed-off-by: Bennyam Malavazi <Bennyam.Malavazi@xxxxxxxxxxx> Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx> --- drivers/net/wireless/ath9k/recv.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c index 4d23827..0941589 100644 --- a/drivers/net/wireless/ath9k/recv.c +++ b/drivers/net/wireless/ath9k/recv.c @@ -52,7 +52,7 @@ static void ath_rx_buf_link(struct ath_softc *sc, struct ath_buf *bf) /* setup rx descriptors */ ath9k_hw_setuprxdesc(ah, ds, - skb_tailroom(skb), /* buffer size */ + sc->sc_rxbufsize, 0); if (sc->sc_rxlink == NULL) -- 1.5.6.rc2.15.g457bb.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
