target/linux/layerscape/patches-5.4/701-net-0118-dpaa_eth-ERR010022-preserve-timestamping.patch

   1 From 2039a9ff462d50251fd800ce4418f76230373783 Mon Sep 17 00:00:00 2001
   2 From: Camelia Groza <camelia.groza@nxp.com>
   3 Date: Mon, 22 Jul 2019 14:50:36 +0300
   4 Subject: [PATCH] dpaa_eth: ERR010022: preserve timestamping
   5
   6 Maintain all timestamping fields when copying the skb.
   7
   8 Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
   9 Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  10 ---
  11  drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 9 +++++++++
  12  1 file changed, 9 insertions(+)
  13
  14 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
  15 +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
  16 @@ -2196,6 +2196,15 @@ static struct sk_buff *dpaa_errata_a0100
  17         }
  18         skb_copy_header(nskb, skb);
  19
  20 +       /* Copy relevant timestamp info from the old skb to the new */
  21 +       if (priv->tx_tstamp) {
  22 +               skb_shinfo(nskb)->tx_flags = skb_shinfo(skb)->tx_flags;
  23 +               skb_shinfo(nskb)->hwtstamps = skb_shinfo(skb)->hwtstamps;
  24 +               skb_shinfo(nskb)->tskey = skb_shinfo(skb)->tskey;
  25 +               if (skb->sk)
  26 +                       skb_set_owner_w(nskb, skb->sk);
  27 +       }
  28 +
  29         /* We move the headroom when we align it so we have to reset the
  30          * network and transport header offsets relative to the new data
  31          * pointer. The checksum offload relies on these offsets.