net: dsa: sja1105: stop using priv->vlan_aware

Now that the sja1105 driver is finally sane enough again to stop having
a ternary VLAN awareness state, we can remove priv->vlan_aware and query
DSA for the ds->vlan_filtering value (for SJA1105, VLAN filtering is a
global property).

Also drop the paranoid checking that DSA calls ->port_vlan_filtering
multiple times without the VLAN awareness state changing. It doesn't,
the same check is present inside dsa_port_vlan_filtering too.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/sja1105/sja1105.h

@@ -226,7 +226,6 @@ struct sja1105_private {
 	bool rgmii_tx_delay[SJA1105_MAX_NUM_PORTS];
 	phy_interface_t phy_mode[SJA1105_MAX_NUM_PORTS];
 	bool fixed_link[SJA1105_MAX_NUM_PORTS];
-	bool vlan_aware;
 	unsigned long ucast_egress_floods;
 	unsigned long bcast_egress_floods;
 	const struct sja1105_info *info;

drivers/net/dsa/sja1105/sja1105_main.c

@@ -1780,6 +1780,7 @@ static int sja1105_fdb_del(struct dsa_switch *ds, int port,
 static int sja1105_fdb_dump(struct dsa_switch *ds, int port,
 			    dsa_fdb_dump_cb_t *cb, void *data)
 {
+	struct dsa_port *dp = dsa_to_port(ds, port);
 	struct sja1105_private *priv = ds->priv;
 	struct device *dev = ds->dev;
 	int i;
@@ -1816,7 +1817,7 @@ static int sja1105_fdb_dump(struct dsa_switch *ds, int port,
 		u64_to_ether_addr(l2_lookup.macaddr, macaddr);
 
 		/* We need to hide the dsa_8021q VLANs from the user. */
-		if (!priv->vlan_aware)
+		if (!dsa_port_is_vlan_filtering(dp))
 			l2_lookup.vlanid = 0;
 		rc = cb(macaddr, l2_lookup.vlanid, l2_lookup.lockeds, data);
 		if (rc)
@@ -2309,11 +2310,6 @@ int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled,
 		tpid2 = ETH_P_SJA1105;
 	}
 
-	if (priv->vlan_aware == enabled)
-		return 0;
-
-	priv->vlan_aware = enabled;
-
 	table = &priv->static_config.tables[BLK_IDX_GENERAL_PARAMS];
 	general_params = table->entries;
 	/* EtherType used to identify inner tagged (C-tag) VLAN traffic */
@@ -2346,7 +2342,7 @@ int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled,
 	 */
 	table = &priv->static_config.tables[BLK_IDX_L2_LOOKUP_PARAMS];
 	l2_lookup_params = table->entries;
-	l2_lookup_params->shared_learn = !priv->vlan_aware;
+	l2_lookup_params->shared_learn = !enabled;
 
 	for (port = 0; port < ds->num_ports; port++) {
 		if (dsa_is_unused_port(ds, port))

drivers/net/dsa/sja1105/sja1105_vl.c

@@ -494,13 +494,15 @@ int sja1105_vl_redirect(struct sja1105_private *priv, int port,
 			bool append)
 {
 	struct sja1105_rule *rule = sja1105_rule_find(priv, cookie);
+	struct dsa_port *dp = dsa_to_port(priv->ds, port);
+	bool vlan_aware = dsa_port_is_vlan_filtering(dp);
 	int rc;
 
-	if (!priv->vlan_aware && key->type != SJA1105_KEY_VLAN_UNAWARE_VL) {
+	if (!vlan_aware && key->type != SJA1105_KEY_VLAN_UNAWARE_VL) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Can only redirect based on DMAC");
 		return -EOPNOTSUPP;
-	} else if (priv->vlan_aware && key->type != SJA1105_KEY_VLAN_AWARE_VL) {
+	} else if (vlan_aware && key->type != SJA1105_KEY_VLAN_AWARE_VL) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Can only redirect based on {DMAC, VID, PCP}");
 		return -EOPNOTSUPP;
@@ -568,6 +570,8 @@ int sja1105_vl_gate(struct sja1105_private *priv, int port,
 		    u32 num_entries, struct action_gate_entry *entries)
 {
 	struct sja1105_rule *rule = sja1105_rule_find(priv, cookie);
+	struct dsa_port *dp = dsa_to_port(priv->ds, port);
+	bool vlan_aware = dsa_port_is_vlan_filtering(dp);
 	int ipv = -1;
 	int i, rc;
 	s32 rem;
@@ -592,11 +596,11 @@ int sja1105_vl_gate(struct sja1105_private *priv, int port,
 		return -ERANGE;
 	}
 
-	if (!priv->vlan_aware && key->type != SJA1105_KEY_VLAN_UNAWARE_VL) {
+	if (!vlan_aware && key->type != SJA1105_KEY_VLAN_UNAWARE_VL) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Can only gate based on DMAC");
 		return -EOPNOTSUPP;
-	} else if (priv->vlan_aware && key->type != SJA1105_KEY_VLAN_AWARE_VL) {
+	} else if (vlan_aware && key->type != SJA1105_KEY_VLAN_AWARE_VL) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Can only gate based on {DMAC, VID, PCP}");
 		return -EOPNOTSUPP;