lantiq: Add some gswip patches

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

diff --git a/target/linux/lantiq/patches-5.15/0736-net-dsa-lantiq_gswip-Use-dsa_is_cpu_port-in-gswip_po.patch b/target/linux/lantiq/patches-5.15/0736-net-dsa-lantiq_gswip-Use-dsa_is_cpu_port-in-gswip_po.patch
new file mode 100644 (file)
index 0000000..26f7c0f
--- /dev/null
+++ b/target/linux/lantiq/patches-5.15/0736-net-dsa-lantiq_gswip-Use-dsa_is_cpu_port-in-gswip_po.patch
@@ -0,0 +1,30 @@
+From 8ab55ac9678ca1f50f786c84484599dd675c5a9f Mon Sep 17 00:00:00 2001
+From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+Date: Wed, 18 May 2022 23:53:09 +0200
+Subject: [PATCH 736/768] net: dsa: lantiq_gswip: Use dsa_is_cpu_port() in
+ gswip_port_change_mtu()
+
+Make the check for the CPU port in gswip_port_change_mtu() consistent
+with other areas of the driver by using dsa_is_cpu_port().
+
+Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+---
+ drivers/net/dsa/lantiq_gswip.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/drivers/net/dsa/lantiq_gswip.c
++++ b/drivers/net/dsa/lantiq_gswip.c
+@@ -1463,12 +1463,11 @@ static int gswip_port_max_mtu(struct dsa
+ static int gswip_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
+ {
+       struct gswip_priv *priv = ds->priv;
+-      int cpu_port = priv->hw_info->cpu_port;
+ 
+       /* CPU port always has maximum mtu of user ports, so use it to set
+        * switch frame size, including 8 byte special header.
+        */
+-      if (port == cpu_port) {
++      if (dsa_is_cpu_port(ds, port)) {
+               new_mtu += 8;
+               gswip_switch_w(priv, VLAN_ETH_HLEN + new_mtu + ETH_FCS_LEN,
+                              GSWIP_MAC_FLEN);