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net: dsa: mt7530: correct ds->num_ports

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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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
DENG Qingfang 2021-10-16 14:24:14 +08:00 committed by David S. Miller
parent 66d262804a
commit 342afce10d
1 changed files with 1 additions and 7 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/net/dsa/mt7530.c
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@ -1035,9 +1035,6 @@ mt7530_port_enable(struct dsa_switch *ds, int port,
{ {
struct mt7530_priv *priv = ds->priv; struct mt7530_priv *priv = ds->priv;
if (!dsa_is_user_port(ds, port))
return 0;
mutex_lock(&priv->reg_mutex); mutex_lock(&priv->reg_mutex);
/* Allow the user port gets connected to the cpu port and also /* 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; struct mt7530_priv *priv = ds->priv;
if (!dsa_is_user_port(ds, port))
return;
mutex_lock(&priv->reg_mutex); mutex_lock(&priv->reg_mutex);
/* Clear up all port matrix which could be restored in the next /* Clear up all port matrix which could be restored in the next
@ -3211,7 +3205,7 @@ mt7530_probe(struct mdio_device *mdiodev)
return -ENOMEM; return -ENOMEM;
priv->ds->dev = &mdiodev->dev; 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 /* Use medatek,mcm property to distinguish hardware type that would
* casues a little bit differences on power-on sequence. * casues a little bit differences on power-on sequence.