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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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| 
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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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| 
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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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| 
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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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|  
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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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|  
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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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|  
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|  	tx.flags = IEEE80211_TX_UNICAST;
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