ath9k: fix software retry counter tracking - should fix 802.11n stability issues

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24183 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/mac80211/patches/580-ath9k_fix_aggr_retries.patch b/package/mac80211/patches/580-ath9k_fix_aggr_retries.patch
new file mode 100644 (file)
index 0000000..ca7d35b
--- /dev/null
+++ b/package/mac80211/patches/580-ath9k_fix_aggr_retries.patch
@@ -0,0 +1,16 @@
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -250,11 +250,11 @@ static void ath_tid_drain(struct ath_sof
+ static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq,
+                            struct sk_buff *skb)
+ {
+-      struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
++      struct ath_frame_info *fi = get_frame_info(skb);
+       struct ieee80211_hdr *hdr;
+ 
+       TX_STAT_INC(txq->axq_qnum, a_retries);
+-      if (tx_info->control.rates[4].count++ > 0)
++      if (fi->retries++ > 0)
+               return;
+ 
+       hdr = (struct ieee80211_hdr *)skb->data;