Setting ds->num_ports to DSA_MAX_PORTS made DSA core allocate unnecessary dsa_port's and call mt7530_port_disable for non-existent ports.
Set it to MT7530_NUM_PORTS to fix that, and dsa_is_user_port check in port_enable/disable is no longer required.
Cc: stable@vger.kernel.org Signed-off-by: DENG Qingfang dqfext@gmail.com --- drivers/net/dsa/mt7530.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index a3b49abd32f1..dbd15da977b5 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1035,9 +1035,6 @@ mt7530_port_enable(struct dsa_switch *ds, int port, { struct mt7530_priv *priv = ds->priv;
- if (!dsa_is_user_port(ds, port)) - return 0; - mutex_lock(&priv->reg_mutex);
/* Allow the user port gets connected to the cpu port and also @@ -1060,9 +1057,6 @@ mt7530_port_disable(struct dsa_switch *ds, int port) { struct mt7530_priv *priv = ds->priv;
- if (!dsa_is_user_port(ds, port)) - return; - mutex_lock(&priv->reg_mutex);
/* Clear up all port matrix which could be restored in the next @@ -3265,7 +3259,7 @@ mt7530_probe(struct mdio_device *mdiodev) return -ENOMEM;
priv->ds->dev = &mdiodev->dev; - priv->ds->num_ports = DSA_MAX_PORTS; + priv->ds->num_ports = MT7530_NUM_PORTS;
/* Use medatek,mcm property to distinguish hardware type that would * casues a little bit differences on power-on sequence.