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ath9k: Fix bug in accessing skb->data of rx frame for edma
Skip the rx status portion in skb->data before accessing ieee80211 frame header. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -1094,6 +1094,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
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enum ath9k_rx_qtype qtype;
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bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
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int dma_type;
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u8 rx_status_len = ah->caps.rx_status_len;
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if (edma)
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dma_type = DMA_BIDIRECTIONAL;
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@ -1121,7 +1122,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
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if (!skb)
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continue;
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hdr = (struct ieee80211_hdr *) skb->data;
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hdr = (struct ieee80211_hdr *) (skb->data + rx_status_len);
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rxs = IEEE80211_SKB_RXCB(skb);
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hw = ath_get_virt_hw(sc, hdr);
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