net: dsa: b53: Let DSA handle mismatched VLAN filtering settings

The DSA core is now able to do this check prior to calling the
.port_vlan_filtering callback, so tell it that VLAN filtering is global
for this particular hardware.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 18 deletions

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 0852e5e08177..a779b9c3ab6e 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -966,6 +966,13 @@ static int b53_setup(struct dsa_switch *ds)
                         b53_disable_port(ds, port);
         }
 
+        /* Let DSA handle the case were multiple bridges span the same switch
+         * device and different VLAN awareness settings are requested, which
+         * would be breaking filtering semantics for any of the other bridge
+         * devices. (not hardware supported)
+         */
+        ds->vlan_filtering_is_global = true;
+
         return ret;
 }
 
@@ -1275,26 +1282,8 @@ EXPORT_SYMBOL(b53_phylink_mac_link_up);
 int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering)
 {
         struct b53_device *dev = ds->priv;
-        struct net_device *bridge_dev;
-        unsigned int i;
         u16 pvid, new_pvid;
 
-        /* Handle the case were multiple bridges span the same switch device
-         * and one of them has a different setting than what is being requested
-         * which would be breaking filtering semantics for any of the other
-         * bridge devices.
-         */
-        b53_for_each_port(dev, i) {
-                bridge_dev = dsa_to_port(ds, i)->bridge_dev;
-                if (bridge_dev &&
-                    bridge_dev != dsa_to_port(ds, port)->bridge_dev &&
-                    br_vlan_enabled(bridge_dev) != vlan_filtering) {
-                        netdev_err(bridge_dev,
-                                   "VLAN filtering is global to the switch!\n");
-                        return -EINVAL;
-                }
-        }
-
         b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid);
         new_pvid = pvid;
         if (dev->vlan_filtering_enabled && !vlan_filtering) {