target/linux/lantiq/patches-5.15/0736-net-dsa-lantiq_gswip-Use-dsa_is_cpu_port-in-gswip_po.patch

   1 From 8ab55ac9678ca1f50f786c84484599dd675c5a9f Mon Sep 17 00:00:00 2001
   2 From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
   3 Date: Wed, 18 May 2022 23:53:09 +0200
   4 Subject: [PATCH 736/768] net: dsa: lantiq_gswip: Use dsa_is_cpu_port() in
   5  gswip_port_change_mtu()
   6
   7 Make the check for the CPU port in gswip_port_change_mtu() consistent
   8 with other areas of the driver by using dsa_is_cpu_port().
   9
  10 Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
  11 ---
  12  drivers/net/dsa/lantiq_gswip.c | 3 +--
  13  1 file changed, 1 insertion(+), 2 deletions(-)
  14
  15 --- a/drivers/net/dsa/lantiq_gswip.c
  16 +++ b/drivers/net/dsa/lantiq_gswip.c
  17 @@ -1463,12 +1463,11 @@ static int gswip_port_max_mtu(struct dsa
  18  static int gswip_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
  19  {
  20         struct gswip_priv *priv = ds->priv;
  21 -       int cpu_port = priv->hw_info->cpu_port;
  22
  23         /* CPU port always has maximum mtu of user ports, so use it to set
  24          * switch frame size, including 8 byte special header.
  25          */
  26 -       if (port == cpu_port) {
  27 +       if (dsa_is_cpu_port(ds, port)) {
  28                 new_mtu += 8;
  29                 gswip_switch_w(priv, VLAN_ETH_HLEN + new_mtu + ETH_FCS_LEN,
  30                                GSWIP_MAC_FLEN);