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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2022-05-19 00:00:50 +0200
committerJakub Kicinski <kuba@kernel.org>2022-05-19 18:40:45 -0700
commit7b4149bdee6a6363cb4eca3599296d41a7b3700d (patch)
tree504e1d12f9540d0d8f92af5cd3dd8dcab0157163
parent86afd5a0e78eb9b84b158b33d85f711c5f748fd1 (diff)
downloadlinux-7b4149bdee6a6363cb4eca3599296d41a7b3700d.tar.bz2
net: dsa: lantiq_gswip: Fix start index in gswip_port_fdb()
The first N entries in priv->vlans are reserved for managing ports which are not part of a bridge. Use priv->hw_info->max_ports to consistently access per-bridge entries at index 7. Starting at priv->hw_info->cpu_port (6) is harmless in this case because priv->vlan[6].bridge is always NULL so the comparison result is always false (which results in this entry being skipped). Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/dsa/lantiq_gswip.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index 12c15da55664..0c313db23451 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -1360,7 +1360,7 @@ static int gswip_port_fdb(struct dsa_switch *ds, int port,
struct net_device *bridge = dsa_port_bridge_dev_get(dsa_to_port(ds, port));
struct gswip_priv *priv = ds->priv;
struct gswip_pce_table_entry mac_bridge = {0,};
- unsigned int cpu_port = priv->hw_info->cpu_port;
+ unsigned int max_ports = priv->hw_info->max_ports;
int fid = -1;
int i;
int err;
@@ -1368,7 +1368,7 @@ static int gswip_port_fdb(struct dsa_switch *ds, int port,
if (!bridge)
return -EINVAL;
- for (i = cpu_port; i < ARRAY_SIZE(priv->vlans); i++) {
+ for (i = max_ports; i < ARRAY_SIZE(priv->vlans); i++) {
if (priv->vlans[i].bridge == bridge) {
fid = priv->vlans[i].fid;
break;