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Commit 74be4bab authored by Vivien Didelot's avatar Vivien Didelot Committed by David S. Miller
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net: dsa: do not enable or disable non user ports



The .port_enable and .port_disable operations are currently only
called for user ports, hence assuming they have a slave device. In
preparation for using these operations for other port types as well,
simply guard all implementations against non user ports and return
directly in such case.

Note that bcm_sf2_sw_suspend() currently calls bcm_sf2_port_disable()
(and thus b53_disable_port()) against the user and CPU ports, so do
not guards those functions. They will be called for unused ports in
the future, but that was expected by those drivers anyway.

Signed-off-by: default avatarVivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 955222ca
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+6 −1
Original line number Diff line number Diff line
@@ -510,10 +510,15 @@ EXPORT_SYMBOL(b53_imp_vlan_setup);
int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
{
	struct b53_device *dev = ds->priv;
	unsigned int cpu_port = ds->ports[port].cpu_dp->index;
	unsigned int cpu_port;
	int ret = 0;
	u16 pvlan;

	if (!dsa_is_user_port(ds, port))
		return 0;

	cpu_port = ds->ports[port].cpu_dp->index;

	if (dev->ops->irq_enable)
		ret = dev->ops->irq_enable(dev, port);
	if (ret)
+3 −0
Original line number Diff line number Diff line
@@ -157,6 +157,9 @@ static int bcm_sf2_port_setup(struct dsa_switch *ds, int port,
	unsigned int i;
	u32 reg;

	if (!dsa_is_user_port(ds, port))
		return 0;

	/* Clear the memory power down */
	reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL);
	reg &= ~P_TXQ_PSM_VDD(port);
+6 −0
Original line number Diff line number Diff line
@@ -1079,6 +1079,9 @@ static int lan9303_port_enable(struct dsa_switch *ds, int port,
{
	struct lan9303 *chip = ds->priv;

	if (!dsa_is_user_port(ds, port))
		return 0;

	return lan9303_enable_processing_port(chip, port);
}

@@ -1086,6 +1089,9 @@ static void lan9303_port_disable(struct dsa_switch *ds, int port)
{
	struct lan9303 *chip = ds->priv;

	if (!dsa_is_user_port(ds, port))
		return;

	lan9303_disable_processing_port(chip, port);
	lan9303_phy_write(ds, chip->phy_addr_base + port, MII_BMCR, BMCR_PDOWN);
}
+6 −0
Original line number Diff line number Diff line
@@ -642,6 +642,9 @@ static int gswip_port_enable(struct dsa_switch *ds, int port,
	struct gswip_priv *priv = ds->priv;
	int err;

	if (!dsa_is_user_port(ds, port))
		return 0;

	if (!dsa_is_cpu_port(ds, port)) {
		err = gswip_add_single_port_br(priv, port, true);
		if (err)
@@ -678,6 +681,9 @@ static void gswip_port_disable(struct dsa_switch *ds, int port)
{
	struct gswip_priv *priv = ds->priv;

	if (!dsa_is_user_port(ds, port))
		return;

	if (!dsa_is_cpu_port(ds, port)) {
		gswip_mdio_mask(priv, GSWIP_MDIO_PHY_LINK_DOWN,
				GSWIP_MDIO_PHY_LINK_MASK,
+6 −0
Original line number Diff line number Diff line
@@ -361,6 +361,9 @@ int ksz_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
{
	struct ksz_device *dev = ds->priv;

	if (!dsa_is_user_port(ds, port))
		return 0;

	/* setup slave port */
	dev->dev_ops->port_setup(dev, port, false);
	if (dev->dev_ops->phy_setup)
@@ -378,6 +381,9 @@ void ksz_disable_port(struct dsa_switch *ds, int port)
{
	struct ksz_device *dev = ds->priv;

	if (!dsa_is_user_port(ds, port))
		return;

	dev->on_ports &= ~(1 << port);
	dev->live_ports &= ~(1 << port);

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