netdev - [PATCH net-next] net: dsa: mt7530: fix VLAN setup

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Date:   Fri, 15 May 2020 23:25:55 +0800
From:   DENG Qingfang <dqfext@...il.com>
To:     netdev@...r.kernel.org
Cc:     Sean Wang <sean.wang@...iatek.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        linux-mediatek@...ts.infradead.org,
        Russell King <linux@...linux.org.uk>,
        Matthias Brugger <matthias.bgg@...il.com>,
        René van Dorst <opensource@...rst.com>,
        Tom James <tj17@...com>,
        Stijn Segers <foss@...atilesystems.org>,
        riddlariddla@...mail.com, Szabolcs Hubai <szab.hu@...il.com>,
        Paul Fertser <fercerpav@...il.com>
Subject: [PATCH net-next] net: dsa: mt7530: fix VLAN setup

Allow DSA to add VLAN entries even if VLAN filtering is disabled, so
enabling it will not block the traffic of existent ports in the bridge

Signed-off-by: DENG Qingfang <dqfext@...il.com>
---
 drivers/net/dsa/mt7530.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index a063d914c23f..d30542fc556a 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1085,12 +1085,6 @@ mt7530_port_vlan_add(struct dsa_switch *ds, int port,
 	struct mt7530_priv *priv = ds->priv;
 	u16 vid;
 
-	/* The port is kept as VLAN-unaware if bridge with vlan_filtering not
-	 * being set.
-	 */
-	if (!dsa_port_is_vlan_filtering(dsa_to_port(ds, port)))
-		return;
-
 	mutex_lock(&priv->reg_mutex);
 
 	for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
@@ -1116,12 +1110,6 @@ mt7530_port_vlan_del(struct dsa_switch *ds, int port,
 	struct mt7530_priv *priv = ds->priv;
 	u16 vid, pvid;
 
-	/* The port is kept as VLAN-unaware if bridge with vlan_filtering not
-	 * being set.
-	 */
-	if (!dsa_port_is_vlan_filtering(dsa_to_port(ds, port)))
-		return 0;
-
 	mutex_lock(&priv->reg_mutex);
 
 	pvid = priv->ports[port].pvid;
@@ -1235,6 +1223,7 @@ mt7530_setup(struct dsa_switch *ds)
 	 * as two netdev instances.
 	 */
 	dn = dsa_to_port(ds, MT7530_CPU_PORT)->master->dev.of_node->parent;
+	ds->configure_vlan_while_not_filtering = true;
 
 	if (priv->id == ID_MT7530) {
 		regulator_set_voltage(priv->core_pwr, 1000000, 1000000);
-- 
2.26.2