From: Jussi Kivilinna Date: Mon, 31 Jan 2011 18:48:16 +0000 (+0200) Subject: zd1211rw: fix ack_pending in filter_ack causing tx-packet ordering problem on monitor X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f773e409b959677170b3cf1d573dafc4a0a3e34e;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git zd1211rw: fix ack_pending in filter_ack causing tx-packet ordering problem on monitor For reasons not very clear yet to me, filter_ack leaves matching tx-packet pending with 'ack_pending'. This causes tx-packet to be passed back to upper layer after next packet has been transfered and tx-packets might end up coming come out of monitor interface in wrong order vs. rx. Because of this when enable AP-mode, hostapd monitor interface would get packets in wrong order causing problems in WPA association. So don't use mac->ack_pending when in AP-mode. Signed-off-by: Jussi Kivilinna Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index ab0d1b9a08ec..84ac95eb59fa 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -799,6 +799,13 @@ static int filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr, mac->ack_pending = 1; mac->ack_signal = stats->signal; + + /* Prevent pending tx-packet on AP-mode */ + if (mac->type == NL80211_IFTYPE_AP) { + skb = __skb_dequeue(q); + zd_mac_tx_status(hw, skb, mac->ack_signal, NULL); + mac->ack_pending = 0; + } } spin_unlock_irqrestore(&q->lock, flags);