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ath9k: fix regression in sending aggregated packets

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The recent commit "ath9k: Send legacy rated frames as unaggregated"
introduced a check to ensure that packets with non-MCS rates set in
the rate series will not be aggregated. However, it failed to check
if the rate series is valid before testing the flags, thus breaking
aggregation for normal MCS-only packets if the last series is unset.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2011-08-27 10:25:27 +02:00 committed by John W. Linville
parent a7be039d34
commit 059ee09b99
1 changed files with 4 additions and 1 deletions
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5
drivers/net/wireless/ath/ath9k/xmit.c
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@ -582,7 +582,10 @@ static bool ath_lookup_legacy(struct ath_buf *bf)
tx_info = IEEE80211_SKB_CB(skb);
rates = tx_info->control.rates;
for (i = 3; i >= 0; i--) {
for (i = 0; i < 4; i++) {
if (!rates[i].count || rates[i].idx < 0)
break;
if (!(rates[i].flags & IEEE80211_TX_RC_MCS))
return true;
}