layerscape: add patches-5.4

[openwrt/staging/wigyori.git] / target / linux / layerscape / patches-5.4 / 701-net-0118-dpaa_eth-ERR010022-preserve-timestamping.patch

diff --git a/target/linux/layerscape/patches-5.4/701-net-0118-dpaa_eth-ERR010022-preserve-timestamping.patch b/target/linux/layerscape/patches-5.4/701-net-0118-dpaa_eth-ERR010022-preserve-timestamping.patch
new file mode 100644 (file)
index 0000000..cd4f6f4
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0118-dpaa_eth-ERR010022-preserve-timestamping.patch
@@ -0,0 +1,31 @@
+From 2039a9ff462d50251fd800ce4418f76230373783 Mon Sep 17 00:00:00 2001
+From: Camelia Groza <camelia.groza@nxp.com>
+Date: Mon, 22 Jul 2019 14:50:36 +0300
+Subject: [PATCH] dpaa_eth: ERR010022: preserve timestamping
+
+Maintain all timestamping fields when copying the skb.
+
+Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
+Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
+---
+ drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
++++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+@@ -2196,6 +2196,15 @@ static struct sk_buff *dpaa_errata_a0100
+       }
+       skb_copy_header(nskb, skb);
+ 
++      /* Copy relevant timestamp info from the old skb to the new */
++      if (priv->tx_tstamp) {
++              skb_shinfo(nskb)->tx_flags = skb_shinfo(skb)->tx_flags;
++              skb_shinfo(nskb)->hwtstamps = skb_shinfo(skb)->hwtstamps;
++              skb_shinfo(nskb)->tskey = skb_shinfo(skb)->tskey;
++              if (skb->sk)
++                      skb_set_owner_w(nskb, skb->sk);
++      }
++
+       /* We move the headroom when we align it so we have to reset the
+        * network and transport header offsets relative to the new data
+        * pointer. The checksum offload relies on these offsets.