r8169: enable transmit time stamping.

This patch has been tested on a machine with the Realtek
RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05).

Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 4aa419487ced1fb2d12a65c5b4eeccb262f4f1fd..27c358c8f4dcc496fd01e841c35b74a9307cbb05 100644 (file)
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5154,6 +5154,8 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 
        netdev_sent_queue(dev, skb->len);
 
+       skb_tx_timestamp(skb);
+
        wmb();
 
        /* Anti gcc 2.95.3 bugware (sic) */