From: Felix Fietkau Date: Thu, 15 Sep 2011 10:59:49 +0000 (+0200) Subject: ath9k: sync the dma buffer after changing the retry flag X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f11cc949fd9fed7040eba39eab11e7bee274b527;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git ath9k: sync the dma buffer after changing the retry flag Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 82718ee1386..fa3dcfdf717 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -262,6 +262,7 @@ static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq, struct sk_buff *skb) { struct ath_frame_info *fi = get_frame_info(skb); + struct ath_buf *bf = fi->bf; struct ieee80211_hdr *hdr; TX_STAT_INC(txq->axq_qnum, a_retries); @@ -270,6 +271,8 @@ static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq, hdr = (struct ieee80211_hdr *)skb->data; hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_RETRY); + dma_sync_single_for_device(sc->dev, bf->bf_buf_addr, + sizeof(*hdr), DMA_TO_DEVICE); } static struct ath_buf *ath_tx_get_buffer(struct ath_softc *sc)