38 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
| From: Felix Fietkau <nbd@nbd.name>
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| Date: Tue, 11 Oct 2016 11:24:07 +0200
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| Subject: [PATCH] mac80211: fix sequence number allocation regression
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| 
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| The recent commit that moved around TX handlers dropped the sequence
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| number allocation at the end of ieee80211_tx_dequeue and calls
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| ieee80211_tx_h_sequence instead (for the non-fast-xmit case).
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| However, it did not change the fast-xmit sequence allocation condition
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| in ieee80211_xmit_fast_finish, which skipped seqno alloc if intermediate
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| tx queues are being used.
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| 
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| Drop the now obsolete condition.
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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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| @@ -3212,7 +3212,6 @@ static void ieee80211_xmit_fast_finish(s
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|  				       struct sk_buff *skb)
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|  {
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|  	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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| -	struct ieee80211_local *local = sdata->local;
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|  	struct ieee80211_hdr *hdr = (void *)skb->data;
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|  	u8 tid = IEEE80211_NUM_TIDS;
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|  
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| @@ -3224,8 +3223,7 @@ 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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| -		if (!ieee80211_get_txq(local, &sdata->vif, &sta->sta, skb))
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| -			hdr->seq_ctrl = ieee80211_tx_next_seq(sta, 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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|  		hdr->seq_ctrl = cpu_to_le16(sdata->sequence_number);
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