diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 1acf7128c146..7dd643f535c3 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -4356,18 +4356,19 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp, int budget) { unsigned int dirty_tx, bytes_compl = 0, pkts_compl = 0; + struct sk_buff *skb; dirty_tx = tp->dirty_tx; while (READ_ONCE(tp->cur_tx) != dirty_tx) { unsigned int entry = dirty_tx % NUM_TX_DESC; - struct sk_buff *skb = tp->tx_skb[entry].skb; u32 status; status = le32_to_cpu(tp->TxDescArray[entry].opts1); if (status & DescOwn) break; + skb = tp->tx_skb[entry].skb; rtl8169_unmap_tx_skb(tp, entry); if (skb) { @@ -4397,8 +4398,10 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp, * too close. Let's kick an extra TxPoll request when a burst * of start_xmit activity is detected (if it is not detected, * it is slow enough). -- FR + * If skb is NULL then we come here again once a tx irq is + * triggered after the last fragment is marked transmitted. */ - if (tp->cur_tx != dirty_tx) + if (tp->cur_tx != dirty_tx && skb) rtl8169_doorbell(tp); } } |