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[01/12] wifi: mt76: mt7996: check txs format before getting skb by pid

Message ID 20240119085708.23592-1-shayne.chen@mediatek.com (mailing list archive)
State Superseded
Delegated to: Felix Fietkau
Headers show
Series [01/12] wifi: mt76: mt7996: check txs format before getting skb by pid | expand

Commit Message

Shayne Chen Jan. 19, 2024, 8:56 a.m. UTC 
From: Peter Chiu <chui-hao.chiu@mediatek.com>

The PPDU TXS does not include the error bit so it cannot use to report
status to mac80211. This patch fixes issue that STA wrongly detects if AP
is still alive.

Fixes: 2569ea5326e2 ("wifi: mt76: mt7996: enable PPDU-TxS to host")
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
 .../net/wireless/mediatek/mt76/mt7996/mac.c   | 23 +++++++++++--------
 1 file changed, 13 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
index 53258488d49f..a8414fbb07c8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
@@ -1188,25 +1188,28 @@  mt7996_mac_add_txs_skb(struct mt7996_dev *dev, struct mt76_wcid *wcid,
 	struct ieee80211_tx_info *info;
 	struct sk_buff_head list;
 	struct rate_info rate = {};
-	struct sk_buff *skb;
+	struct sk_buff *skb = NULL;
 	bool cck = false;
 	u32 txrate, txs, mode, stbc;
 
 	txs = le32_to_cpu(txs_data[0]);
 
 	mt76_tx_status_lock(mdev, &list);
-	skb = mt76_tx_status_skb_get(mdev, wcid, pid, &list);
 
-	if (skb) {
-		info = IEEE80211_SKB_CB(skb);
-		if (!(txs & MT_TXS0_ACK_ERROR_MASK))
-			info->flags |= IEEE80211_TX_STAT_ACK;
+	/* only report MPDU TXS */
+	if (le32_get_bits(txs_data[0], MT_TXS0_TXS_FORMAT) == 0) {
+		skb = mt76_tx_status_skb_get(mdev, wcid, pid, &list);
+		if (skb) {
+			info = IEEE80211_SKB_CB(skb);
+			if (!(txs & MT_TXS0_ACK_ERROR_MASK))
+				info->flags |= IEEE80211_TX_STAT_ACK;
 
-		info->status.ampdu_len = 1;
-		info->status.ampdu_ack_len =
-			!!(info->flags & IEEE80211_TX_STAT_ACK);
+			info->status.ampdu_len = 1;
+			info->status.ampdu_ack_len =
+				!!(info->flags & IEEE80211_TX_STAT_ACK);
 
-		info->status.rates[0].idx = -1;
+			info->status.rates[0].idx = -1;
+		}
 	}
 
 	if (mtk_wed_device_active(&dev->mt76.mmio.wed) && wcid->sta) {