target/linux/layerscape/patches-5.4/701-net-0010-dpaa_eth-ls1043a-errata-check-if-the-skb-is-linear-a.patch

   1 From 62fbf7ebdc28867ae613c3be9c62b30bc36edb1d Mon Sep 17 00:00:00 2001
   2 From: Camelia Groza <camelia.groza@nxp.com>
   3 Date: Mon, 27 Feb 2017 17:35:24 +0200
   4 Subject: [PATCH] dpaa_eth: ls1043a errata: check if the skb is linear after 4k
   5  splitting
   6
   7 Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
   8 ---
   9  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 4 +++-
  10  1 file changed, 3 insertions(+), 1 deletion(-)
  11
  12 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
  13 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
  14 @@ -993,7 +993,7 @@ int __hot dpa_tx_extended(struct sk_buff
  15         struct dpa_percpu_priv_s *percpu_priv;
  16         struct rtnl_link_stats64 *percpu_stats;
  17         int err = 0;
  18 -       const bool nonlinear = skb_is_nonlinear(skb);
  19 +       bool nonlinear;
  20         int *countptr, offset = 0;
  21
  22         priv = netdev_priv(net_dev);
  23 @@ -1023,6 +1023,8 @@ int __hot dpa_tx_extended(struct sk_buff
  24         }
  25  #endif
  26
  27 +       nonlinear = skb_is_nonlinear(skb);
  28 +
  29         /* MAX_SKB_FRAGS is larger than our DPA_SGT_MAX_ENTRIES; make sure
  30          * we don't feed FMan with more fragments than it supports.
  31          * Btw, we're using the first sgt entry to store the linear part of