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b33bfcf9fa
Synchronize the ath11k backports with the current ath-next tree. All of the changes are various bugfixes, there is no new major feature. Signed-off-by: Robert Marko <robimarko@gmail.com>
54 lines
2.3 KiB
Diff
54 lines
2.3 KiB
Diff
From 400ece6c7f346b0a30867bd00b03b5b2563d4357 Mon Sep 17 00:00:00 2001
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From: Sven Eckelmann <sven@narfation.org>
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Date: Tue, 22 Aug 2023 16:42:24 +0300
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Subject: [PATCH] wifi: ath11k: Don't drop tx_status when peer cannot be found
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When a station idles for a long time, hostapd will try to send a QoS Null
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frame to the station as "poll". NL80211_CMD_PROBE_CLIENT is used for this
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purpose. And the skb will be added to ack_status_frame - waiting for a
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completion via ieee80211_report_ack_skb().
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But when the peer was already removed before the tx_complete arrives, the
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peer will be missing. And when using dev_kfree_skb_any (instead of going
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through mac80211), the entry will stay inside ack_status_frames. This IDR
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will therefore run full after 8K request were generated for such clients.
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At this point, the access point will then just stall and not allow any new
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clients because idr_alloc() for ack_status_frame will fail.
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ieee80211_free_txskb() on the other hand will (when required) call
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ieee80211_report_ack_skb() and make sure that (when required) remove the
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entry from the ack_status_frame.
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Tested-on: IPQ6018 hw1.0 WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
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Fixes: 6257c702264c ("wifi: ath11k: fix tx status reporting in encap offload mode")
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Fixes: 94739d45c388 ("ath11k: switch to using ieee80211_tx_status_ext()")
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Cc: stable@vger.kernel.org
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Signed-off-by: Sven Eckelmann <sven@narfation.org>
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Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
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Link: https://lore.kernel.org/r/20230802-ath11k-ack_status_leak-v2-1-c0af729d6229@narfation.org
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---
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drivers/net/wireless/ath/ath11k/dp_tx.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
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+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
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@@ -369,7 +369,7 @@ ath11k_dp_tx_htt_tx_complete_buf(struct
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"dp_tx: failed to find the peer with peer_id %d\n",
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ts->peer_id);
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spin_unlock_bh(&ab->base_lock);
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- dev_kfree_skb_any(msdu);
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+ ieee80211_free_txskb(ar->hw, msdu);
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return;
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}
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spin_unlock_bh(&ab->base_lock);
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@@ -624,7 +624,7 @@ static void ath11k_dp_tx_complete_msdu(s
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"dp_tx: failed to find the peer with peer_id %d\n",
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ts->peer_id);
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spin_unlock_bh(&ab->base_lock);
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- dev_kfree_skb_any(msdu);
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+ ieee80211_free_txskb(ar->hw, msdu);
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return;
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}
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arsta = (struct ath11k_sta *)peer->sta->drv_priv;
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