[PATCH ath-current v2] wifi: ath12k: fix wrong TID passed when stopping AMPDU session

[Pablo Martin-Gomez]

When handling a DELBA request, ath12k_dp_rx_ampdu_stop() calls
ath12k_peer_rx_tid_reo_update() to tear down the BA session for the
specified TID. However, it currently passes peer->rx_tid instead of the
entry corresponding to params->tid.

Since peer->rx_tid is an array, this decays to a pointer to the first
element, effectively operating on TID 0 regardless of the TID in the
DELBA request. As a result, the BA session for TID 0 is stopped while
the intended TID remains active.

This leads to incorrect BA session state and may significantly reduce
RX throughput, as traffic that should use aggregation falls back to a
BA window size of 1 on TID 0.

Fix this by passing the correct TID entry:
  &peer->rx_tid[params->tid]

Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Pablo Martin-Gomez <pmartin-gomez at freebox.fr>
---
 drivers/net/wireless/ath/ath12k/dp_rx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c
index d28d8ffec0f8..f2327c82953b 100644
--- a/drivers/net/wireless/ath/ath12k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath12k/dp_rx.c
@@ -1289,7 +1289,7 @@ int ath12k_dp_rx_ampdu_stop(struct ath12k *ar,
 		return 0;
 	}
 
-	ret = ath12k_peer_rx_tid_reo_update(ar, peer, peer->rx_tid, 1, 0, false);
+	ret = ath12k_peer_rx_tid_reo_update(ar, peer, &peer->rx_tid[params->tid], 1, 0, false);
 	spin_unlock_bh(&ab->base_lock);
 	if (ret) {
 		ath12k_warn(ab, "failed to update reo for rx tid %d: %d\n",
-- 
2.43.0