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ath9k: add a missing dma cache sync on aggregation software retry

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28132 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2011-08-30 20:59:57 +00:00
parent 6d8d46d3c6
commit 22d1073f1c
5 changed files with 40 additions and 20 deletions
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19
package/mac80211/patches/546-ath9k_retry_cache_sync.patch Normal file
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@@ -0,0 +1,19 @@
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -263,6 +263,7 @@ static void ath_tx_set_retry(struct ath_
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);
@@ -271,6 +272,8 @@ static void ath_tx_set_retry(struct ath_
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)