29 lines
1022 B
Diff
29 lines
1022 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Thu, 2 Dec 2021 13:30:05 +0100
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Subject: [PATCH] mac80211: send ADDBA requests using the tid/queue of the
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aggregation session
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Sending them out on a different queue can cause a race condition where a
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number of packets in the queue may be discarded by the receiver, because
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the ADDBA request is sent too early.
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This affects any driver with software A-MPDU setup which does not allocate
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packet seqno in hardware on tx, regardless of whether iTXQ is used or not.
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The only driver I've seen that explicitly deals with this issue internally
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is mwl8k.
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Cc: stable@vger.kernel.org
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/mac80211/agg-tx.c
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+++ b/net/mac80211/agg-tx.c
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@@ -106,7 +106,7 @@ static void ieee80211_send_addba_request
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mgmt->u.action.u.addba_req.start_seq_num =
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cpu_to_le16(start_seq_num << 4);
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- ieee80211_tx_skb(sdata, skb);
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+ ieee80211_tx_skb_tid(sdata, skb, tid);
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}
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void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn)
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