target/linux/layerscape/patches-5.4/701-net-0023-sdk_dpaa-ls1043a-errata-realign-skb-in-place-if-need.patch

   1 From 5a2ba8a9c6b2686aa94a8d5ac35beddf38cba24a Mon Sep 17 00:00:00 2001
   2 From: Camelia Groza <camelia.groza@nxp.com>
   3 Date: Mon, 4 Sep 2017 13:46:00 +0300
   4 Subject: [PATCH] sdk_dpaa: ls1043a errata: realign skb in place if needed
   5
   6 Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
   7 ---
   8  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 8 +++++---
   9  1 file changed, 5 insertions(+), 3 deletions(-)
  10
  11 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
  12 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
  13 @@ -1024,7 +1024,6 @@ int __hot dpa_tx_extended(struct sk_buff
  14  #endif /* CONFIG_FSL_DPAA_TS */
  15
  16  #ifndef CONFIG_PPC
  17 -realign_4k:
  18         if (unlikely(dpaa_errata_a010022) && a010022_check_skb(skb)) {
  19                 skb = a010022_realign_skb(skb);
  20                 if (!skb)
  21 @@ -1073,8 +1072,11 @@ realign_4k:
  22                         skb = nskb;
  23  #ifndef CONFIG_PPC
  24                         if (unlikely(dpaa_errata_a010022) &&
  25 -                           a010022_check_skb(skb))
  26 -                               goto realign_4k;
  27 +                           a010022_check_skb(skb)) {
  28 +                               skb = realign_skb(skb);
  29 +                               if (!skb)
  30 +                                       goto skb_to_fd_failed;
  31 +                       }
  32  #endif
  33                         /* skb_copy() has now linearized the skbuff. */
  34                 } else if (unlikely(nonlinear)) {