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35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Fri, 4 Nov 2016 10:18:51 +0100
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Subject: [PATCH] mac80211: fix A-MSDU aggregation with fast-xmit + txq
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A-MSDU aggregation alters the QoS header after a frame has been
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enqueued, so it needs to be ready before enqueue and not overwritten
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again afterwards
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Fixes: bb42f2d13ffc ("mac80211: Move reorder-sensitive TX handlers to after TXQ dequeue")
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/mac80211/tx.c
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+++ b/net/mac80211/tx.c
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@@ -3245,7 +3245,6 @@ static void ieee80211_xmit_fast_finish(s
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if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
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tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
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- *ieee80211_get_qos_ctl(hdr) = tid;
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hdr->seq_ctrl = ieee80211_tx_next_seq(sta, tid);
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} else {
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info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
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@@ -3370,6 +3369,11 @@ static bool ieee80211_xmit_fast(struct i
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(tid_tx ? IEEE80211_TX_CTL_AMPDU : 0);
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info->control.flags = IEEE80211_TX_CTRL_FAST_XMIT;
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+ if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
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+ tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
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+ *ieee80211_get_qos_ctl(hdr) = tid;
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+ }
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+
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__skb_queue_head_init(&tx.skbs);
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tx.flags = IEEE80211_TX_UNICAST;
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