[PATCH ath-current] wifi: ath11k: fix wrong TID passed when stopping AMPDU session

Pablo MARTIN-GOMEZ pmartin-gomez at freebox.fr
Mon Jan 26 03:42:41 PST 2026


When handling a DELBA request, ath11k_dp_rx_ampdu_stop() calls
ath11k_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: fe201947f8bd ("ath11k: update bawindow size in delba process")
Signed-off-by: Pablo Martin-Gomez <pmartin-gomez at freebox.fr>
---
  drivers/net/wireless/ath/ath11k/dp_rx.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c 
b/drivers/net/wireless/ath/ath11k/dp_rx.c
index b9e976ddcbbf..8db04c38dfba 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1132,7 +1132,7 @@ int ath11k_dp_rx_ampdu_stop(struct ath11k *ar,
          return 0;
      }

-    ret = ath11k_peer_rx_tid_reo_update(ar, peer, peer->rx_tid, 1, 0, 
false);
+    ret = ath11k_peer_rx_tid_reo_update(ar, peer, 
&peer->rx_tid[params->tid], 1, 0, false);
      spin_unlock_bh(&ab->base_lock);
      if (ret) {
          ath11k_warn(ab, "failed to update reo for rx tid %d: %d\n",
-- 
2.43.0




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