package/kernel/qca-nss-dp/patches/0011-04-nss_dp_main-call-unregister_netdev-first-in-dp_remov.patch

   1 From 33dd3aa6d0f9cd240d63f53a49157ae44ebccf87 Mon Sep 17 00:00:00 2001
   2 From: Christian Marangi <ansuelsmth@gmail.com>
   3 Date: Tue, 16 Apr 2024 16:12:11 +0200
   4 Subject: [PATCH 4/6] nss_dp_main: call unregister_netdev first in dp_remove
   5  and carrifer_off
   6
   7 In dp_remove move unregister_netdev up before calling exit and deinit
   8 and first call netif_carrier_off to stop any traffic from happening and
   9 prevent kernel panics for napi in the middle of transfer.
  10
  11 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
  12 ---
  13  nss_dp_main.c | 4 +++-
  14  1 file changed, 3 insertions(+), 1 deletion(-)
  15
  16 --- a/nss_dp_main.c
  17 +++ b/nss_dp_main.c
  18 @@ -920,6 +920,9 @@ static int nss_dp_remove(struct platform
  19                 dp_ops = dp_priv->data_plane_ops;
  20                 hal_ops = dp_priv->gmac_hal_ops;
  21
  22 +               netif_carrier_off(dp_priv->netdev);
  23 +               unregister_netdev(dp_priv->netdev);
  24 +
  25                 if (dp_priv->phydev)
  26                         phy_disconnect(dp_priv->phydev);
  27
  28 @@ -931,7 +934,6 @@ static int nss_dp_remove(struct platform
  29  #endif
  30                 hal_ops->exit(dp_priv->gmac_hal_ctx);
  31                 dp_ops->deinit(dp_priv->dpc);
  32 -               unregister_netdev(dp_priv->netdev);
  33                 free_netdev(dp_priv->netdev);
  34                 dp_global_ctx.nss_dp[i] = NULL;
  35         }