ath10k: clear htt.freq

If htt.freq isn't cleared and contains garbage fw
may discard tx packets. Prevent this from
happening by clearing htt.freq properly.

Possible manifestation of the problem could be not
being able to send auth request/response frames on
firmware with HTT >= 3.4 (when freq param was
introduced), e.g. on qca6174.

Fixes: 8d6d36243610 ("ath10k: fix offchan reliability")
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index b0eba5e56696362573ab4fd9d0bf924fd173055c..87ecc3e092416ee87e37a192d090bbf409a1264c 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2928,6 +2928,7 @@ static void ath10k_tx(struct ieee80211_hw *hw,
                ath10k_dbg(ar, ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
 
        ATH10K_SKB_CB(skb)->htt.is_offchan = false;
+       ATH10K_SKB_CB(skb)->htt.freq = 0;
        ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr);
        ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, vif);