mt76: avoid re-queueing A-MPDU rx reorder work if no frames are pending

Fixes: aee5b8cf2477 ("mt76: implement A-MPDU rx reordering in the driver code")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/mediatek/mt76/agg-rx.c b/drivers/net/wireless/mediatek/mt76/agg-rx.c
index e9784b5..fcb208d 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/agg-rx.c
+++ b/drivers/net/wireless/mediatek/mt76/agg-rx.c
@@ -98,6 +98,7 @@ mt76_rx_aggr_reorder_work(struct work_struct *work)
                                               reorder_work.work);
        struct mt76_dev *dev = tid->dev;
        struct sk_buff_head frames;
+       int nframes;
 
        __skb_queue_head_init(&frames);
 
@@ -105,9 +106,12 @@ mt76_rx_aggr_reorder_work(struct work_struct *work)
 
        spin_lock(&tid->lock);
        mt76_rx_aggr_check_release(tid, &frames);
+       nframes = tid->nframes;
        spin_unlock(&tid->lock);
 
-       ieee80211_queue_delayed_work(tid->dev->hw, &tid->reorder_work, REORDER_TIMEOUT);
+       if (nframes)
+               ieee80211_queue_delayed_work(tid->dev->hw, &tid->reorder_work,
+                                            REORDER_TIMEOUT);
        mt76_rx_complete(dev, &frames, -1);
 
        local_bh_enable();