[PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Florian Fainelli]

Hi all,

This patch series updates of_mdiobus_register() such that when the device_node
argument is NULL, it calls mdiobus_register() directly. This is consistent with
the behavior of of_mdiobus_register() when CONFIG_OF=n.

I only converted the most obvious drivers, there are others that have a much
less obvious behavior and specifically attempt to deal with CONFIG_ACPI.

Changes in v2:

- fixed build error in davincin_mdio.c (Grygorii)
- reworked first patch a bit: commit message, subject and removed useless
  code comment

Florian Fainelli (2):
  of: mdio: Fall back to mdiobus_register() with NULL device_node
  drivers: net: Remove device_node checks with of_mdiobus_register()

 drivers/net/dsa/bcm_sf2.c                         |  8 ++------
 drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
 drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
 drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
 drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
 drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
 drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
 drivers/net/phy/mdio-gpio.c                       |  6 +-----
 drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
 drivers/net/usb/lan78xx.c                         |  7 ++-----
 drivers/of/of_mdio.c                              |  3 +++
 12 files changed, 23 insertions(+), 61 deletions(-)

-- 
2.14.1

[PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Florian Fainelli]

Hi all,

This patch series updates of_mdiobus_register() such that when the device_node
argument is NULL, it calls mdiobus_register() directly. This is consistent with
the behavior of of_mdiobus_register() when CONFIG_OF=n.

I only converted the most obvious drivers, there are others that have a much
less obvious behavior and specifically attempt to deal with CONFIG_ACPI.

Changes in v2:

- fixed build error in davincin_mdio.c (Grygorii)
- reworked first patch a bit: commit message, subject and removed useless
  code comment

Florian Fainelli (2):
  of: mdio: Fall back to mdiobus_register() with NULL device_node
  drivers: net: Remove device_node checks with of_mdiobus_register()

 drivers/net/dsa/bcm_sf2.c                         |  8 ++------
 drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
 drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
 drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
 drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
 drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
 drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
 drivers/net/phy/mdio-gpio.c                       |  6 +-----
 drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
 drivers/net/usb/lan78xx.c                         |  7 ++-----
 drivers/of/of_mdio.c                              |  3 +++
 12 files changed, 23 insertions(+), 61 deletions(-)

-- 
2.14.1

[PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Florian Fainelli]

Hi all,

This patch series updates of_mdiobus_register() such that when the device_node
argument is NULL, it calls mdiobus_register() directly. This is consistent with
the behavior of of_mdiobus_register() when CONFIG_OF=n.

I only converted the most obvious drivers, there are others that have a much
less obvious behavior and specifically attempt to deal with CONFIG_ACPI.

Changes in v2:

- fixed build error in davincin_mdio.c (Grygorii)
- reworked first patch a bit: commit message, subject and removed useless
  code comment

Florian Fainelli (2):
  of: mdio: Fall back to mdiobus_register() with NULL device_node
  drivers: net: Remove device_node checks with of_mdiobus_register()

 drivers/net/dsa/bcm_sf2.c                         |  8 ++------
 drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
 drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
 drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
 drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
 drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
 drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
 drivers/net/phy/mdio-gpio.c                       |  6 +-----
 drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
 drivers/net/usb/lan78xx.c                         |  7 ++-----
 drivers/of/of_mdio.c                              |  3 +++
 12 files changed, 23 insertions(+), 61 deletions(-)

-- 
2.14.1

[PATCH net-next v2 1/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Florian Fainelli]

When the device_node specified is NULL, fall back to mdiobus_register().
We have a number of drivers having a similar pattern which is:

if (np)
	of_mdiobus_register()
else
	mdiobus_register()

so incorporate that behavior within the core of_mdiobus_register()
function. This is also consistent with the stub version that we defined
when CONFIG_OF=n.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/of/of_mdio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 8c0c92712fc9..d963baf8e53a 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -204,6 +204,9 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 	bool scanphys = false;
 	int addr, rc;
 
+	if (!np)
+		return mdiobus_register(mdio);
+
 	/* Do not continue if the node is disabled */
 	if (!of_device_is_available(np))
 		return -ENODEV;
-- 
2.14.1

[net-next,v2,1/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Florian Fainelli]

When the device_node specified is NULL, fall back to mdiobus_register().
We have a number of drivers having a similar pattern which is:

if (np)
	of_mdiobus_register()
else
	mdiobus_register()

so incorporate that behavior within the core of_mdiobus_register()
function. This is also consistent with the stub version that we defined
when CONFIG_OF=n.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/of/of_mdio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 8c0c92712fc9..d963baf8e53a 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -204,6 +204,9 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 	bool scanphys = false;
 	int addr, rc;
 
+	if (!np)
+		return mdiobus_register(mdio);
+
 	/* Do not continue if the node is disabled */
 	if (!of_device_is_available(np))
 		return -ENODEV;

[PATCH net-next v2 1/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Florian Fainelli]

When the device_node specified is NULL, fall back to mdiobus_register().
We have a number of drivers having a similar pattern which is:

if (np)
	of_mdiobus_register()
else
	mdiobus_register()

so incorporate that behavior within the core of_mdiobus_register()
function. This is also consistent with the stub version that we defined
when CONFIG_OF=n.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/of/of_mdio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 8c0c92712fc9..d963baf8e53a 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -204,6 +204,9 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 	bool scanphys = false;
 	int addr, rc;
 
+	if (!np)
+		return mdiobus_register(mdio);
+
 	/* Do not continue if the node is disabled */
 	if (!of_device_is_available(np))
 		return -ENODEV;
-- 
2.14.1

[PATCH net-next v2 1/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Florian Fainelli]

When the device_node specified is NULL, fall back to mdiobus_register().
We have a number of drivers having a similar pattern which is:

if (np)
	of_mdiobus_register()
else
	mdiobus_register()

so incorporate that behavior within the core of_mdiobus_register()
function. This is also consistent with the stub version that we defined
when CONFIG_OF=n.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/of/of_mdio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 8c0c92712fc9..d963baf8e53a 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -204,6 +204,9 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 	bool scanphys = false;
 	int addr, rc;
 
+	if (!np)
+		return mdiobus_register(mdio);
+
 	/* Do not continue if the node is disabled */
 	if (!of_device_is_available(np))
 		return -ENODEV;
-- 
2.14.1

[PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Florian Fainelli]

A number of drivers have the following pattern:

if (np)
	of_mdiobus_register()
else
	mdiobus_register()

which the implementation of of_mdiobus_register() now takes care of.
Remove that pattern in drivers that strictly adhere to it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/dsa/bcm_sf2.c                         |  8 ++------
 drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
 drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
 drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
 drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
 drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
 drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
 drivers/net/phy/mdio-gpio.c                       |  6 +-----
 drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
 drivers/net/usb/lan78xx.c                         |  7 ++-----
 11 files changed, 20 insertions(+), 61 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index ac621f44237a..02e8982519ce 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
 	priv->slave_mii_bus->parent = ds->dev->parent;
 	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
 
-	if (dn)
-		err = of_mdiobus_register(priv->slave_mii_bus, dn);
-	else
-		err = mdiobus_register(priv->slave_mii_bus);
-
-	if (err)
+	err = of_mdiobus_register(priv->slave_mii_bus, dn);
+	if (err && dn)
 		of_node_put(dn);
 
 	return err;
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index b23c11d9f4b2..2bb3f03ee1cb 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 			return err;
 	}
 
-	if (np)
-		err = of_mdiobus_register(bus, np);
-	else
-		err = mdiobus_register(bus);
+	err = of_mdiobus_register(bus, np);
 	if (err) {
 		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
 		mv88e6xxx_g2_irq_mdio_free(chip, bus);
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index b4c9268100bb..3e93df5d4e3b 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
 	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
 
 	np = bp->pdev->dev.of_node;
+	if (pdata)
+		bp->mii_bus->phy_mask = pdata->phy_mask;
 
-	if (np) {
-		err = of_mdiobus_register(bp->mii_bus, np);
-	} else {
-		if (pdata)
-			bp->mii_bus->phy_mask = pdata->phy_mask;
-
-		err = mdiobus_register(bp->mii_bus);
-	}
-
+	err = of_mdiobus_register(bp->mii_bus, np);
 	if (err)
 		goto err_out_free_mdiobus;
 
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index d4604bc8eb5b..f3e43db0d6cb 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
 	fep->mii_bus->parent = &pdev->dev;
 
 	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
-	if (node) {
-		err = of_mdiobus_register(fep->mii_bus, node);
+	err = of_mdiobus_register(fep->mii_bus, node);
+	if (node)
 		of_node_put(node);
-	} else {
-		err = mdiobus_register(fep->mii_bus);
-	}
-
 	if (err)
 		goto err_out_free_mdiobus;
 
diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 0495487f7b42..c5dac6bd2be4 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
 		goto out_mdio;
 	}
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(bus);
+	ret = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
 		goto out_mdio;
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5970d9e5ddf1..8dd41e08a6c6 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
 		 pdev->name, pdev->id);
 
 	/* register MDIO bus */
-	if (dev->of_node) {
-		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
-	} else {
-		if (pd->phy_irq > 0)
-			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
-
-		ret = mdiobus_register(mdp->mii_bus);
-	}
+	if (pd->phy_irq > 0)
+		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
 
+	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
 	if (ret)
 		goto out_free_bus;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index f5f37bfa1d58..5df1a608e566 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
 	new_bus->phy_mask = mdio_bus_data->phy_mask;
 	new_bus->parent = priv->device;
 
-	if (mdio_node)
-		err = of_mdiobus_register(new_bus, mdio_node);
-	else
-		err = mdiobus_register(new_bus);
+	err = of_mdiobus_register(new_bus, mdio_node);
 	if (err != 0) {
 		dev_err(dev, "Cannot register the MDIO bus\n");
 		goto bus_register_fail;
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 98a1c97fb95e..8ac72831af05 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
 	 * defined to support backward compatibility with DTs which assume that
 	 * Davinci MDIO will always scan the bus for PHYs detection.
 	 */
-	if (dev->of_node && of_get_child_count(dev->of_node)) {
+	if (dev->of_node && of_get_child_count(dev->of_node))
 		data->skip_scan = true;
-		ret = of_mdiobus_register(data->bus, dev->of_node);
-	} else {
-		ret = mdiobus_register(data->bus);
-	}
+
+	ret = of_mdiobus_register(data->bus, dev->of_node);
 	if (ret)
 		goto bail_out;
 
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index b501221819e1..4e4c8daf44c3 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
 	if (!new_bus)
 		return -ENODEV;
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(new_bus);
-
+	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
 	if (ret)
 		mdio_gpio_bus_deinit(&pdev->dev);
 
diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
index 8c689ccfdbca..badbc99bedd3 100644
--- a/drivers/net/phy/mdio-mscc-miim.c
+++ b/drivers/net/phy/mdio-mscc-miim.c
@@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(bus);
-
+	ret = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
 		return ret;
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 91761436709a..8dff87ec6d99 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
 	}
 
 	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
-	if (node) {
-		ret = of_mdiobus_register(dev->mdiobus, node);
+	ret = of_mdiobus_register(dev->mdiobus, node);
+	if (node)
 		of_node_put(node);
-	} else {
-		ret = mdiobus_register(dev->mdiobus);
-	}
 	if (ret) {
 		netdev_err(dev->net, "can't register MDIO bus\n");
 		goto exit1;
-- 
2.14.1

[net-next,v2,2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Florian Fainelli]

A number of drivers have the following pattern:

if (np)
	of_mdiobus_register()
else
	mdiobus_register()

which the implementation of of_mdiobus_register() now takes care of.
Remove that pattern in drivers that strictly adhere to it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/dsa/bcm_sf2.c                         |  8 ++------
 drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
 drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
 drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
 drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
 drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
 drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
 drivers/net/phy/mdio-gpio.c                       |  6 +-----
 drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
 drivers/net/usb/lan78xx.c                         |  7 ++-----
 11 files changed, 20 insertions(+), 61 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index ac621f44237a..02e8982519ce 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
 	priv->slave_mii_bus->parent = ds->dev->parent;
 	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
 
-	if (dn)
-		err = of_mdiobus_register(priv->slave_mii_bus, dn);
-	else
-		err = mdiobus_register(priv->slave_mii_bus);
-
-	if (err)
+	err = of_mdiobus_register(priv->slave_mii_bus, dn);
+	if (err && dn)
 		of_node_put(dn);
 
 	return err;
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index b23c11d9f4b2..2bb3f03ee1cb 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 			return err;
 	}
 
-	if (np)
-		err = of_mdiobus_register(bus, np);
-	else
-		err = mdiobus_register(bus);
+	err = of_mdiobus_register(bus, np);
 	if (err) {
 		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
 		mv88e6xxx_g2_irq_mdio_free(chip, bus);
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index b4c9268100bb..3e93df5d4e3b 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
 	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
 
 	np = bp->pdev->dev.of_node;
+	if (pdata)
+		bp->mii_bus->phy_mask = pdata->phy_mask;
 
-	if (np) {
-		err = of_mdiobus_register(bp->mii_bus, np);
-	} else {
-		if (pdata)
-			bp->mii_bus->phy_mask = pdata->phy_mask;
-
-		err = mdiobus_register(bp->mii_bus);
-	}
-
+	err = of_mdiobus_register(bp->mii_bus, np);
 	if (err)
 		goto err_out_free_mdiobus;
 
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index d4604bc8eb5b..f3e43db0d6cb 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
 	fep->mii_bus->parent = &pdev->dev;
 
 	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
-	if (node) {
-		err = of_mdiobus_register(fep->mii_bus, node);
+	err = of_mdiobus_register(fep->mii_bus, node);
+	if (node)
 		of_node_put(node);
-	} else {
-		err = mdiobus_register(fep->mii_bus);
-	}
-
 	if (err)
 		goto err_out_free_mdiobus;
 
diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 0495487f7b42..c5dac6bd2be4 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
 		goto out_mdio;
 	}
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(bus);
+	ret = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
 		goto out_mdio;
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5970d9e5ddf1..8dd41e08a6c6 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
 		 pdev->name, pdev->id);
 
 	/* register MDIO bus */
-	if (dev->of_node) {
-		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
-	} else {
-		if (pd->phy_irq > 0)
-			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
-
-		ret = mdiobus_register(mdp->mii_bus);
-	}
+	if (pd->phy_irq > 0)
+		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
 
+	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
 	if (ret)
 		goto out_free_bus;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index f5f37bfa1d58..5df1a608e566 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
 	new_bus->phy_mask = mdio_bus_data->phy_mask;
 	new_bus->parent = priv->device;
 
-	if (mdio_node)
-		err = of_mdiobus_register(new_bus, mdio_node);
-	else
-		err = mdiobus_register(new_bus);
+	err = of_mdiobus_register(new_bus, mdio_node);
 	if (err != 0) {
 		dev_err(dev, "Cannot register the MDIO bus\n");
 		goto bus_register_fail;
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 98a1c97fb95e..8ac72831af05 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
 	 * defined to support backward compatibility with DTs which assume that
 	 * Davinci MDIO will always scan the bus for PHYs detection.
 	 */
-	if (dev->of_node && of_get_child_count(dev->of_node)) {
+	if (dev->of_node && of_get_child_count(dev->of_node))
 		data->skip_scan = true;
-		ret = of_mdiobus_register(data->bus, dev->of_node);
-	} else {
-		ret = mdiobus_register(data->bus);
-	}
+
+	ret = of_mdiobus_register(data->bus, dev->of_node);
 	if (ret)
 		goto bail_out;
 
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index b501221819e1..4e4c8daf44c3 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
 	if (!new_bus)
 		return -ENODEV;
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(new_bus);
-
+	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
 	if (ret)
 		mdio_gpio_bus_deinit(&pdev->dev);
 
diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
index 8c689ccfdbca..badbc99bedd3 100644
--- a/drivers/net/phy/mdio-mscc-miim.c
+++ b/drivers/net/phy/mdio-mscc-miim.c
@@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(bus);
-
+	ret = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
 		return ret;
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 91761436709a..8dff87ec6d99 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
 	}
 
 	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
-	if (node) {
-		ret = of_mdiobus_register(dev->mdiobus, node);
+	ret = of_mdiobus_register(dev->mdiobus, node);
+	if (node)
 		of_node_put(node);
-	} else {
-		ret = mdiobus_register(dev->mdiobus);
-	}
 	if (ret) {
 		netdev_err(dev->net, "can't register MDIO bus\n");
 		goto exit1;

[PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Florian Fainelli]

A number of drivers have the following pattern:

if (np)
	of_mdiobus_register()
else
	mdiobus_register()

which the implementation of of_mdiobus_register() now takes care of.
Remove that pattern in drivers that strictly adhere to it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/dsa/bcm_sf2.c                         |  8 ++------
 drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
 drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
 drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
 drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
 drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
 drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
 drivers/net/phy/mdio-gpio.c                       |  6 +-----
 drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
 drivers/net/usb/lan78xx.c                         |  7 ++-----
 11 files changed, 20 insertions(+), 61 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index ac621f44237a..02e8982519ce 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
 	priv->slave_mii_bus->parent = ds->dev->parent;
 	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
 
-	if (dn)
-		err = of_mdiobus_register(priv->slave_mii_bus, dn);
-	else
-		err = mdiobus_register(priv->slave_mii_bus);
-
-	if (err)
+	err = of_mdiobus_register(priv->slave_mii_bus, dn);
+	if (err && dn)
 		of_node_put(dn);
 
 	return err;
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index b23c11d9f4b2..2bb3f03ee1cb 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 			return err;
 	}
 
-	if (np)
-		err = of_mdiobus_register(bus, np);
-	else
-		err = mdiobus_register(bus);
+	err = of_mdiobus_register(bus, np);
 	if (err) {
 		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
 		mv88e6xxx_g2_irq_mdio_free(chip, bus);
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index b4c9268100bb..3e93df5d4e3b 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
 	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
 
 	np = bp->pdev->dev.of_node;
+	if (pdata)
+		bp->mii_bus->phy_mask = pdata->phy_mask;
 
-	if (np) {
-		err = of_mdiobus_register(bp->mii_bus, np);
-	} else {
-		if (pdata)
-			bp->mii_bus->phy_mask = pdata->phy_mask;
-
-		err = mdiobus_register(bp->mii_bus);
-	}
-
+	err = of_mdiobus_register(bp->mii_bus, np);
 	if (err)
 		goto err_out_free_mdiobus;
 
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index d4604bc8eb5b..f3e43db0d6cb 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
 	fep->mii_bus->parent = &pdev->dev;
 
 	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
-	if (node) {
-		err = of_mdiobus_register(fep->mii_bus, node);
+	err = of_mdiobus_register(fep->mii_bus, node);
+	if (node)
 		of_node_put(node);
-	} else {
-		err = mdiobus_register(fep->mii_bus);
-	}
-
 	if (err)
 		goto err_out_free_mdiobus;
 
diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 0495487f7b42..c5dac6bd2be4 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
 		goto out_mdio;
 	}
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(bus);
+	ret = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
 		goto out_mdio;
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5970d9e5ddf1..8dd41e08a6c6 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
 		 pdev->name, pdev->id);
 
 	/* register MDIO bus */
-	if (dev->of_node) {
-		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
-	} else {
-		if (pd->phy_irq > 0)
-			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
-
-		ret = mdiobus_register(mdp->mii_bus);
-	}
+	if (pd->phy_irq > 0)
+		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
 
+	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
 	if (ret)
 		goto out_free_bus;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index f5f37bfa1d58..5df1a608e566 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
 	new_bus->phy_mask = mdio_bus_data->phy_mask;
 	new_bus->parent = priv->device;
 
-	if (mdio_node)
-		err = of_mdiobus_register(new_bus, mdio_node);
-	else
-		err = mdiobus_register(new_bus);
+	err = of_mdiobus_register(new_bus, mdio_node);
 	if (err != 0) {
 		dev_err(dev, "Cannot register the MDIO bus\n");
 		goto bus_register_fail;
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 98a1c97fb95e..8ac72831af05 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
 	 * defined to support backward compatibility with DTs which assume that
 	 * Davinci MDIO will always scan the bus for PHYs detection.
 	 */
-	if (dev->of_node && of_get_child_count(dev->of_node)) {
+	if (dev->of_node && of_get_child_count(dev->of_node))
 		data->skip_scan = true;
-		ret = of_mdiobus_register(data->bus, dev->of_node);
-	} else {
-		ret = mdiobus_register(data->bus);
-	}
+
+	ret = of_mdiobus_register(data->bus, dev->of_node);
 	if (ret)
 		goto bail_out;
 
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index b501221819e1..4e4c8daf44c3 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
 	if (!new_bus)
 		return -ENODEV;
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(new_bus);
-
+	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
 	if (ret)
 		mdio_gpio_bus_deinit(&pdev->dev);
 
diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
index 8c689ccfdbca..badbc99bedd3 100644
--- a/drivers/net/phy/mdio-mscc-miim.c
+++ b/drivers/net/phy/mdio-mscc-miim.c
@@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(bus);
-
+	ret = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
 		return ret;
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 91761436709a..8dff87ec6d99 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
 	}
 
 	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
-	if (node) {
-		ret = of_mdiobus_register(dev->mdiobus, node);
+	ret = of_mdiobus_register(dev->mdiobus, node);
+	if (node)
 		of_node_put(node);
-	} else {
-		ret = mdiobus_register(dev->mdiobus);
-	}
 	if (ret) {
 		netdev_err(dev->net, "can't register MDIO bus\n");
 		goto exit1;
-- 
2.14.1

[PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Florian Fainelli]

A number of drivers have the following pattern:

if (np)
	of_mdiobus_register()
else
	mdiobus_register()

which the implementation of of_mdiobus_register() now takes care of.
Remove that pattern in drivers that strictly adhere to it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/dsa/bcm_sf2.c                         |  8 ++------
 drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
 drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
 drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
 drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
 drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
 drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
 drivers/net/phy/mdio-gpio.c                       |  6 +-----
 drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
 drivers/net/usb/lan78xx.c                         |  7 ++-----
 11 files changed, 20 insertions(+), 61 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index ac621f44237a..02e8982519ce 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
 	priv->slave_mii_bus->parent = ds->dev->parent;
 	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
 
-	if (dn)
-		err = of_mdiobus_register(priv->slave_mii_bus, dn);
-	else
-		err = mdiobus_register(priv->slave_mii_bus);
-
-	if (err)
+	err = of_mdiobus_register(priv->slave_mii_bus, dn);
+	if (err && dn)
 		of_node_put(dn);
 
 	return err;
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index b23c11d9f4b2..2bb3f03ee1cb 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 			return err;
 	}
 
-	if (np)
-		err = of_mdiobus_register(bus, np);
-	else
-		err = mdiobus_register(bus);
+	err = of_mdiobus_register(bus, np);
 	if (err) {
 		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
 		mv88e6xxx_g2_irq_mdio_free(chip, bus);
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index b4c9268100bb..3e93df5d4e3b 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
 	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
 
 	np = bp->pdev->dev.of_node;
+	if (pdata)
+		bp->mii_bus->phy_mask = pdata->phy_mask;
 
-	if (np) {
-		err = of_mdiobus_register(bp->mii_bus, np);
-	} else {
-		if (pdata)
-			bp->mii_bus->phy_mask = pdata->phy_mask;
-
-		err = mdiobus_register(bp->mii_bus);
-	}
-
+	err = of_mdiobus_register(bp->mii_bus, np);
 	if (err)
 		goto err_out_free_mdiobus;
 
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index d4604bc8eb5b..f3e43db0d6cb 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
 	fep->mii_bus->parent = &pdev->dev;
 
 	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
-	if (node) {
-		err = of_mdiobus_register(fep->mii_bus, node);
+	err = of_mdiobus_register(fep->mii_bus, node);
+	if (node)
 		of_node_put(node);
-	} else {
-		err = mdiobus_register(fep->mii_bus);
-	}
-
 	if (err)
 		goto err_out_free_mdiobus;
 
diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 0495487f7b42..c5dac6bd2be4 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
 		goto out_mdio;
 	}
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(bus);
+	ret = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
 		goto out_mdio;
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5970d9e5ddf1..8dd41e08a6c6 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
 		 pdev->name, pdev->id);
 
 	/* register MDIO bus */
-	if (dev->of_node) {
-		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
-	} else {
-		if (pd->phy_irq > 0)
-			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
-
-		ret = mdiobus_register(mdp->mii_bus);
-	}
+	if (pd->phy_irq > 0)
+		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
 
+	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
 	if (ret)
 		goto out_free_bus;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index f5f37bfa1d58..5df1a608e566 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
 	new_bus->phy_mask = mdio_bus_data->phy_mask;
 	new_bus->parent = priv->device;
 
-	if (mdio_node)
-		err = of_mdiobus_register(new_bus, mdio_node);
-	else
-		err = mdiobus_register(new_bus);
+	err = of_mdiobus_register(new_bus, mdio_node);
 	if (err != 0) {
 		dev_err(dev, "Cannot register the MDIO bus\n");
 		goto bus_register_fail;
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 98a1c97fb95e..8ac72831af05 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
 	 * defined to support backward compatibility with DTs which assume that
 	 * Davinci MDIO will always scan the bus for PHYs detection.
 	 */
-	if (dev->of_node && of_get_child_count(dev->of_node)) {
+	if (dev->of_node && of_get_child_count(dev->of_node))
 		data->skip_scan = true;
-		ret = of_mdiobus_register(data->bus, dev->of_node);
-	} else {
-		ret = mdiobus_register(data->bus);
-	}
+
+	ret = of_mdiobus_register(data->bus, dev->of_node);
 	if (ret)
 		goto bail_out;
 
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index b501221819e1..4e4c8daf44c3 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
 	if (!new_bus)
 		return -ENODEV;
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(new_bus);
-
+	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
 	if (ret)
 		mdio_gpio_bus_deinit(&pdev->dev);
 
diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
index 8c689ccfdbca..badbc99bedd3 100644
--- a/drivers/net/phy/mdio-mscc-miim.c
+++ b/drivers/net/phy/mdio-mscc-miim.c
@@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (pdev->dev.of_node)
-		ret = of_mdiobus_register(bus, pdev->dev.of_node);
-	else
-		ret = mdiobus_register(bus);
-
+	ret = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
 		return ret;
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 91761436709a..8dff87ec6d99 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
 	}
 
 	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
-	if (node) {
-		ret = of_mdiobus_register(dev->mdiobus, node);
+	ret = of_mdiobus_register(dev->mdiobus, node);
+	if (node)
 		of_node_put(node);
-	} else {
-		ret = mdiobus_register(dev->mdiobus);
-	}
 	if (ret) {
 		netdev_err(dev->net, "can't register MDIO bus\n");
 		goto exit1;
-- 
2.14.1

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Grygorii Strashko]

On 05/15/2018 06:56 PM, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>   drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>   drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>   drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>   drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>   drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>   drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>   drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>   drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----

for drivers/net/ethernet/ti/davinci_mdio.c:
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>

>   drivers/net/phy/mdio-gpio.c                       |  6 +-----
>   drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>   drivers/net/usb/lan78xx.c                         |  7 ++-----
>   11 files changed, 20 insertions(+), 61 deletions(-)

-- 
regards,
-grygorii

[net-next,v2,2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Grygorii Strashko]

On 05/15/2018 06:56 PM, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>   drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>   drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>   drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>   drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>   drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>   drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>   drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>   drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----

for drivers/net/ethernet/ti/davinci_mdio.c:
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>

>   drivers/net/phy/mdio-gpio.c                       |  6 +-----
>   drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>   drivers/net/usb/lan78xx.c                         |  7 ++-----
>   11 files changed, 20 insertions(+), 61 deletions(-)

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Grygorii Strashko]

On 05/15/2018 06:56 PM, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>   drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>   drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>   drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>   drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>   drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>   drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>   drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>   drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----

for drivers/net/ethernet/ti/davinci_mdio.c:
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>

>   drivers/net/phy/mdio-gpio.c                       |  6 +-----
>   drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>   drivers/net/usb/lan78xx.c                         |  7 ++-----
>   11 files changed, 20 insertions(+), 61 deletions(-)

-- 
regards,
-grygorii

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Grygorii Strashko]

On 05/15/2018 06:56 PM, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>   drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>   drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>   drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>   drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>   drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>   drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>   drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>   drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----

for drivers/net/ethernet/ti/davinci_mdio.c:
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>

>   drivers/net/phy/mdio-gpio.c                       |  6 +-----
>   drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>   drivers/net/usb/lan78xx.c                         |  7 ++-----
>   11 files changed, 20 insertions(+), 61 deletions(-)

-- 
regards,
-grygorii

RE: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Andy Duan]

From: Florian Fainelli <f.fainelli@gmail.com> Sent: 2018年5月16日 7:56
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

For drivers/net/ethernet/freescale/fec_main.c:

Reviewed-by: Fugang Duan <fugang.duan@nxp.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index
> ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch
> *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
> 
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)
>  		of_node_put(dn);
> 
>  	return err;
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c
> b/drivers/net/dsa/mv88e6xxx/chip.c
> index b23c11d9f4b2..2bb3f03ee1cb 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct
> mv88e6xxx_chip *chip,
>  			return err;
>  	}
> 
> -	if (np)
> -		err = of_mdiobus_register(bus, np);
> -	else
> -		err = mdiobus_register(bus);
> +	err = of_mdiobus_register(bus, np);
>  	if (err) {
>  		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
>  		mv88e6xxx_g2_irq_mdio_free(chip, bus); diff --git
> a/drivers/net/ethernet/cadence/macb_main.c
> b/drivers/net/ethernet/cadence/macb_main.c
> index b4c9268100bb..3e93df5d4e3b 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
>  	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
> 
>  	np = bp->pdev->dev.of_node;
> +	if (pdata)
> +		bp->mii_bus->phy_mask = pdata->phy_mask;
> 
> -	if (np) {
> -		err = of_mdiobus_register(bp->mii_bus, np);
> -	} else {
> -		if (pdata)
> -			bp->mii_bus->phy_mask = pdata->phy_mask;
> -
> -		err = mdiobus_register(bp->mii_bus);
> -	}
> -
> +	err = of_mdiobus_register(bp->mii_bus, np);
>  	if (err)
>  		goto err_out_free_mdiobus;
> 
> diff --git a/drivers/net/ethernet/freescale/fec_main.c
> b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device
> *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
> 
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		err = mdiobus_register(fep->mii_bus);
> -	}
> -
>  	if (err)
>  		goto err_out_free_mdiobus;
> 
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c
> b/drivers/net/ethernet/marvell/mvmdio.c
> index 0495487f7b42..c5dac6bd2be4 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device
> *pdev)
>  		goto out_mdio;
>  	}
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		goto out_mdio;
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c
> b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private
> *mdp,
>  		 pdev->name, pdev->id);
> 
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> 
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index f5f37bfa1d58..5df1a608e566 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	new_bus->phy_mask = mdio_bus_data->phy_mask;
>  	new_bus->parent = priv->device;
> 
> -	if (mdio_node)
> -		err = of_mdiobus_register(new_bus, mdio_node);
> -	else
> -		err = mdiobus_register(new_bus);
> +	err = of_mdiobus_register(new_bus, mdio_node);
>  	if (err != 0) {
>  		dev_err(dev, "Cannot register the MDIO bus\n");
>  		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c
> b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..8ac72831af05 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct
> platform_device *pdev)
>  	 * defined to support backward compatibility with DTs which assume that
>  	 * Davinci MDIO will always scan the bus for PHYs detection.
>  	 */
> -	if (dev->of_node && of_get_child_count(dev->of_node)) {
> +	if (dev->of_node && of_get_child_count(dev->of_node))
>  		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>  	if (ret)
>  		goto bail_out;
> 
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c index
> b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device
> *pdev)
>  	if (!new_bus)
>  		return -ENODEV;
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(new_bus);
> -
> +	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
>  	if (ret)
>  		mdio_gpio_bus_deinit(&pdev->dev);
> 
> diff --git a/drivers/net/phy/mdio-mscc-miim.c
> b/drivers/net/phy/mdio-mscc-miim.c
> index 8c689ccfdbca..badbc99bedd3 100644
> --- a/drivers/net/phy/mdio-mscc-miim.c
> +++ b/drivers/net/phy/mdio-mscc-miim.c
> @@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device
> *pdev)
>  		}
>  	}
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> -
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		return ret;
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index
> 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net
> *dev)
>  	}
> 
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		ret = mdiobus_register(dev->mdiobus);
> -	}
>  	if (ret) {
>  		netdev_err(dev->net, "can't register MDIO bus\n");
>  		goto exit1;
> --
> 2.14.1

[net-next,v2,2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Fugang Duan]

From: Florian Fainelli <f.fainelli@gmail.com> Sent: 2018年5月16日 7:56
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

For drivers/net/ethernet/freescale/fec_main.c:

Reviewed-by: Fugang Duan <fugang.duan@nxp.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index
> ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch
> *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
> 
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)
>  		of_node_put(dn);
> 
>  	return err;
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c
> b/drivers/net/dsa/mv88e6xxx/chip.c
> index b23c11d9f4b2..2bb3f03ee1cb 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct
> mv88e6xxx_chip *chip,
>  			return err;
>  	}
> 
> -	if (np)
> -		err = of_mdiobus_register(bus, np);
> -	else
> -		err = mdiobus_register(bus);
> +	err = of_mdiobus_register(bus, np);
>  	if (err) {
>  		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
>  		mv88e6xxx_g2_irq_mdio_free(chip, bus); diff --git
> a/drivers/net/ethernet/cadence/macb_main.c
> b/drivers/net/ethernet/cadence/macb_main.c
> index b4c9268100bb..3e93df5d4e3b 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
>  	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
> 
>  	np = bp->pdev->dev.of_node;
> +	if (pdata)
> +		bp->mii_bus->phy_mask = pdata->phy_mask;
> 
> -	if (np) {
> -		err = of_mdiobus_register(bp->mii_bus, np);
> -	} else {
> -		if (pdata)
> -			bp->mii_bus->phy_mask = pdata->phy_mask;
> -
> -		err = mdiobus_register(bp->mii_bus);
> -	}
> -
> +	err = of_mdiobus_register(bp->mii_bus, np);
>  	if (err)
>  		goto err_out_free_mdiobus;
> 
> diff --git a/drivers/net/ethernet/freescale/fec_main.c
> b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device
> *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
> 
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		err = mdiobus_register(fep->mii_bus);
> -	}
> -
>  	if (err)
>  		goto err_out_free_mdiobus;
> 
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c
> b/drivers/net/ethernet/marvell/mvmdio.c
> index 0495487f7b42..c5dac6bd2be4 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device
> *pdev)
>  		goto out_mdio;
>  	}
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		goto out_mdio;
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c
> b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private
> *mdp,
>  		 pdev->name, pdev->id);
> 
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> 
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index f5f37bfa1d58..5df1a608e566 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	new_bus->phy_mask = mdio_bus_data->phy_mask;
>  	new_bus->parent = priv->device;
> 
> -	if (mdio_node)
> -		err = of_mdiobus_register(new_bus, mdio_node);
> -	else
> -		err = mdiobus_register(new_bus);
> +	err = of_mdiobus_register(new_bus, mdio_node);
>  	if (err != 0) {
>  		dev_err(dev, "Cannot register the MDIO bus\n");
>  		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c
> b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..8ac72831af05 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct
> platform_device *pdev)
>  	 * defined to support backward compatibility with DTs which assume that
>  	 * Davinci MDIO will always scan the bus for PHYs detection.
>  	 */
> -	if (dev->of_node && of_get_child_count(dev->of_node)) {
> +	if (dev->of_node && of_get_child_count(dev->of_node))
>  		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>  	if (ret)
>  		goto bail_out;
> 
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c index
> b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device
> *pdev)
>  	if (!new_bus)
>  		return -ENODEV;
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(new_bus);
> -
> +	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
>  	if (ret)
>  		mdio_gpio_bus_deinit(&pdev->dev);
> 
> diff --git a/drivers/net/phy/mdio-mscc-miim.c
> b/drivers/net/phy/mdio-mscc-miim.c
> index 8c689ccfdbca..badbc99bedd3 100644
> --- a/drivers/net/phy/mdio-mscc-miim.c
> +++ b/drivers/net/phy/mdio-mscc-miim.c
> @@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device
> *pdev)
>  		}
>  	}
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> -
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		return ret;
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index
> 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net
> *dev)
>  	}
> 
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		ret = mdiobus_register(dev->mdiobus);
> -	}
>  	if (ret) {
>  		netdev_err(dev->net, "can't register MDIO bus\n");
>  		goto exit1;
> --
> 2.14.1

RE: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Andy Duan]

From: Florian Fainelli <f.fainelli@gmail.com> Sent: 2018年5月16日 7:56
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

For drivers/net/ethernet/freescale/fec_main.c:

Reviewed-by: Fugang Duan <fugang.duan@nxp.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index
> ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch
> *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
> 
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)
>  		of_node_put(dn);
> 
>  	return err;
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c
> b/drivers/net/dsa/mv88e6xxx/chip.c
> index b23c11d9f4b2..2bb3f03ee1cb 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct
> mv88e6xxx_chip *chip,
>  			return err;
>  	}
> 
> -	if (np)
> -		err = of_mdiobus_register(bus, np);
> -	else
> -		err = mdiobus_register(bus);
> +	err = of_mdiobus_register(bus, np);
>  	if (err) {
>  		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
>  		mv88e6xxx_g2_irq_mdio_free(chip, bus); diff --git
> a/drivers/net/ethernet/cadence/macb_main.c
> b/drivers/net/ethernet/cadence/macb_main.c
> index b4c9268100bb..3e93df5d4e3b 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
>  	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
> 
>  	np = bp->pdev->dev.of_node;
> +	if (pdata)
> +		bp->mii_bus->phy_mask = pdata->phy_mask;
> 
> -	if (np) {
> -		err = of_mdiobus_register(bp->mii_bus, np);
> -	} else {
> -		if (pdata)
> -			bp->mii_bus->phy_mask = pdata->phy_mask;
> -
> -		err = mdiobus_register(bp->mii_bus);
> -	}
> -
> +	err = of_mdiobus_register(bp->mii_bus, np);
>  	if (err)
>  		goto err_out_free_mdiobus;
> 
> diff --git a/drivers/net/ethernet/freescale/fec_main.c
> b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device
> *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
> 
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		err = mdiobus_register(fep->mii_bus);
> -	}
> -
>  	if (err)
>  		goto err_out_free_mdiobus;
> 
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c
> b/drivers/net/ethernet/marvell/mvmdio.c
> index 0495487f7b42..c5dac6bd2be4 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device
> *pdev)
>  		goto out_mdio;
>  	}
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		goto out_mdio;
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c
> b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private
> *mdp,
>  		 pdev->name, pdev->id);
> 
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> 
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index f5f37bfa1d58..5df1a608e566 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	new_bus->phy_mask = mdio_bus_data->phy_mask;
>  	new_bus->parent = priv->device;
> 
> -	if (mdio_node)
> -		err = of_mdiobus_register(new_bus, mdio_node);
> -	else
> -		err = mdiobus_register(new_bus);
> +	err = of_mdiobus_register(new_bus, mdio_node);
>  	if (err != 0) {
>  		dev_err(dev, "Cannot register the MDIO bus\n");
>  		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c
> b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..8ac72831af05 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct
> platform_device *pdev)
>  	 * defined to support backward compatibility with DTs which assume that
>  	 * Davinci MDIO will always scan the bus for PHYs detection.
>  	 */
> -	if (dev->of_node && of_get_child_count(dev->of_node)) {
> +	if (dev->of_node && of_get_child_count(dev->of_node))
>  		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>  	if (ret)
>  		goto bail_out;
> 
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c index
> b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device
> *pdev)
>  	if (!new_bus)
>  		return -ENODEV;
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(new_bus);
> -
> +	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
>  	if (ret)
>  		mdio_gpio_bus_deinit(&pdev->dev);
> 
> diff --git a/drivers/net/phy/mdio-mscc-miim.c
> b/drivers/net/phy/mdio-mscc-miim.c
> index 8c689ccfdbca..badbc99bedd3 100644
> --- a/drivers/net/phy/mdio-mscc-miim.c
> +++ b/drivers/net/phy/mdio-mscc-miim.c
> @@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device
> *pdev)
>  		}
>  	}
> 
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> -
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		return ret;
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index
> 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net
> *dev)
>  	}
> 
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		ret = mdiobus_register(dev->mdiobus);
> -	}
>  	if (ret) {
>  		netdev_err(dev->net, "can't register MDIO bus\n");
>  		goto exit1;
> --
> 2.14.1

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Antoine Tenart]

Hi Florian,

On Tue, May 15, 2018 at 04:56:19PM -0700, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----

For mvmdio,
Reviewed-by: Antoine Tenart <antoine.tenart@bootlin.com>

Thanks!
Antoine

>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)
>  		of_node_put(dn);
>  
>  	return err;
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
> index b23c11d9f4b2..2bb3f03ee1cb 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
>  			return err;
>  	}
>  
> -	if (np)
> -		err = of_mdiobus_register(bus, np);
> -	else
> -		err = mdiobus_register(bus);
> +	err = of_mdiobus_register(bus, np);
>  	if (err) {
>  		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
>  		mv88e6xxx_g2_irq_mdio_free(chip, bus);
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index b4c9268100bb..3e93df5d4e3b 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
>  	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
>  
>  	np = bp->pdev->dev.of_node;
> +	if (pdata)
> +		bp->mii_bus->phy_mask = pdata->phy_mask;
>  
> -	if (np) {
> -		err = of_mdiobus_register(bp->mii_bus, np);
> -	} else {
> -		if (pdata)
> -			bp->mii_bus->phy_mask = pdata->phy_mask;
> -
> -		err = mdiobus_register(bp->mii_bus);
> -	}
> -
> +	err = of_mdiobus_register(bp->mii_bus, np);
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		err = mdiobus_register(fep->mii_bus);
> -	}
> -
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
> index 0495487f7b42..c5dac6bd2be4 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
>  		goto out_mdio;
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		goto out_mdio;
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index f5f37bfa1d58..5df1a608e566 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	new_bus->phy_mask = mdio_bus_data->phy_mask;
>  	new_bus->parent = priv->device;
>  
> -	if (mdio_node)
> -		err = of_mdiobus_register(new_bus, mdio_node);
> -	else
> -		err = mdiobus_register(new_bus);
> +	err = of_mdiobus_register(new_bus, mdio_node);
>  	if (err != 0) {
>  		dev_err(dev, "Cannot register the MDIO bus\n");
>  		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..8ac72831af05 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
>  	 * defined to support backward compatibility with DTs which assume that
>  	 * Davinci MDIO will always scan the bus for PHYs detection.
>  	 */
> -	if (dev->of_node && of_get_child_count(dev->of_node)) {
> +	if (dev->of_node && of_get_child_count(dev->of_node))
>  		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>  	if (ret)
>  		goto bail_out;
>  
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
> index b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
>  	if (!new_bus)
>  		return -ENODEV;
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(new_bus);
> -
> +	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
>  	if (ret)
>  		mdio_gpio_bus_deinit(&pdev->dev);
>  
> diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
> index 8c689ccfdbca..badbc99bedd3 100644
> --- a/drivers/net/phy/mdio-mscc-miim.c
> +++ b/drivers/net/phy/mdio-mscc-miim.c
> @@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> -
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		return ret;
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		ret = mdiobus_register(dev->mdiobus);
> -	}
>  	if (ret) {
>  		netdev_err(dev->net, "can't register MDIO bus\n");
>  		goto exit1;
> -- 
> 2.14.1
> 

-- 
Antoine Ténart, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

[net-next,v2,2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Antoine Tenart]

Hi Florian,

On Tue, May 15, 2018 at 04:56:19PM -0700, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----

For mvmdio,
Reviewed-by: Antoine Tenart <antoine.tenart@bootlin.com>

Thanks!
Antoine

>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)
>  		of_node_put(dn);
>  
>  	return err;
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
> index b23c11d9f4b2..2bb3f03ee1cb 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
>  			return err;
>  	}
>  
> -	if (np)
> -		err = of_mdiobus_register(bus, np);
> -	else
> -		err = mdiobus_register(bus);
> +	err = of_mdiobus_register(bus, np);
>  	if (err) {
>  		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
>  		mv88e6xxx_g2_irq_mdio_free(chip, bus);
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index b4c9268100bb..3e93df5d4e3b 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
>  	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
>  
>  	np = bp->pdev->dev.of_node;
> +	if (pdata)
> +		bp->mii_bus->phy_mask = pdata->phy_mask;
>  
> -	if (np) {
> -		err = of_mdiobus_register(bp->mii_bus, np);
> -	} else {
> -		if (pdata)
> -			bp->mii_bus->phy_mask = pdata->phy_mask;
> -
> -		err = mdiobus_register(bp->mii_bus);
> -	}
> -
> +	err = of_mdiobus_register(bp->mii_bus, np);
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		err = mdiobus_register(fep->mii_bus);
> -	}
> -
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
> index 0495487f7b42..c5dac6bd2be4 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
>  		goto out_mdio;
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		goto out_mdio;
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index f5f37bfa1d58..5df1a608e566 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	new_bus->phy_mask = mdio_bus_data->phy_mask;
>  	new_bus->parent = priv->device;
>  
> -	if (mdio_node)
> -		err = of_mdiobus_register(new_bus, mdio_node);
> -	else
> -		err = mdiobus_register(new_bus);
> +	err = of_mdiobus_register(new_bus, mdio_node);
>  	if (err != 0) {
>  		dev_err(dev, "Cannot register the MDIO bus\n");
>  		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..8ac72831af05 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
>  	 * defined to support backward compatibility with DTs which assume that
>  	 * Davinci MDIO will always scan the bus for PHYs detection.
>  	 */
> -	if (dev->of_node && of_get_child_count(dev->of_node)) {
> +	if (dev->of_node && of_get_child_count(dev->of_node))
>  		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>  	if (ret)
>  		goto bail_out;
>  
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
> index b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
>  	if (!new_bus)
>  		return -ENODEV;
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(new_bus);
> -
> +	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
>  	if (ret)
>  		mdio_gpio_bus_deinit(&pdev->dev);
>  
> diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
> index 8c689ccfdbca..badbc99bedd3 100644
> --- a/drivers/net/phy/mdio-mscc-miim.c
> +++ b/drivers/net/phy/mdio-mscc-miim.c
> @@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> -
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		return ret;
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		ret = mdiobus_register(dev->mdiobus);
> -	}
>  	if (ret) {
>  		netdev_err(dev->net, "can't register MDIO bus\n");
>  		goto exit1;
> -- 
> 2.14.1
>

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Antoine Tenart]

Hi Florian,

On Tue, May 15, 2018 at 04:56:19PM -0700, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----

For mvmdio,
Reviewed-by: Antoine Tenart <antoine.tenart@bootlin.com>

Thanks!
Antoine

>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)
>  		of_node_put(dn);
>  
>  	return err;
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
> index b23c11d9f4b2..2bb3f03ee1cb 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
>  			return err;
>  	}
>  
> -	if (np)
> -		err = of_mdiobus_register(bus, np);
> -	else
> -		err = mdiobus_register(bus);
> +	err = of_mdiobus_register(bus, np);
>  	if (err) {
>  		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
>  		mv88e6xxx_g2_irq_mdio_free(chip, bus);
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index b4c9268100bb..3e93df5d4e3b 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
>  	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
>  
>  	np = bp->pdev->dev.of_node;
> +	if (pdata)
> +		bp->mii_bus->phy_mask = pdata->phy_mask;
>  
> -	if (np) {
> -		err = of_mdiobus_register(bp->mii_bus, np);
> -	} else {
> -		if (pdata)
> -			bp->mii_bus->phy_mask = pdata->phy_mask;
> -
> -		err = mdiobus_register(bp->mii_bus);
> -	}
> -
> +	err = of_mdiobus_register(bp->mii_bus, np);
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		err = mdiobus_register(fep->mii_bus);
> -	}
> -
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
> index 0495487f7b42..c5dac6bd2be4 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
>  		goto out_mdio;
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		goto out_mdio;
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index f5f37bfa1d58..5df1a608e566 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	new_bus->phy_mask = mdio_bus_data->phy_mask;
>  	new_bus->parent = priv->device;
>  
> -	if (mdio_node)
> -		err = of_mdiobus_register(new_bus, mdio_node);
> -	else
> -		err = mdiobus_register(new_bus);
> +	err = of_mdiobus_register(new_bus, mdio_node);
>  	if (err != 0) {
>  		dev_err(dev, "Cannot register the MDIO bus\n");
>  		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..8ac72831af05 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
>  	 * defined to support backward compatibility with DTs which assume that
>  	 * Davinci MDIO will always scan the bus for PHYs detection.
>  	 */
> -	if (dev->of_node && of_get_child_count(dev->of_node)) {
> +	if (dev->of_node && of_get_child_count(dev->of_node))
>  		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>  	if (ret)
>  		goto bail_out;
>  
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
> index b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
>  	if (!new_bus)
>  		return -ENODEV;
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(new_bus);
> -
> +	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
>  	if (ret)
>  		mdio_gpio_bus_deinit(&pdev->dev);
>  
> diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
> index 8c689ccfdbca..badbc99bedd3 100644
> --- a/drivers/net/phy/mdio-mscc-miim.c
> +++ b/drivers/net/phy/mdio-mscc-miim.c
> @@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> -
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		return ret;
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		ret = mdiobus_register(dev->mdiobus);
> -	}
>  	if (ret) {
>  		netdev_err(dev->net, "can't register MDIO bus\n");
>  		goto exit1;
> -- 
> 2.14.1
> 

-- 
Antoine T�nart, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Antoine Tenart]

Hi Florian,

On Tue, May 15, 2018 at 04:56:19PM -0700, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----

For mvmdio,
Reviewed-by: Antoine Tenart <antoine.tenart@bootlin.com>

Thanks!
Antoine

>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)
>  		of_node_put(dn);
>  
>  	return err;
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
> index b23c11d9f4b2..2bb3f03ee1cb 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
>  			return err;
>  	}
>  
> -	if (np)
> -		err = of_mdiobus_register(bus, np);
> -	else
> -		err = mdiobus_register(bus);
> +	err = of_mdiobus_register(bus, np);
>  	if (err) {
>  		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
>  		mv88e6xxx_g2_irq_mdio_free(chip, bus);
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index b4c9268100bb..3e93df5d4e3b 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
>  	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
>  
>  	np = bp->pdev->dev.of_node;
> +	if (pdata)
> +		bp->mii_bus->phy_mask = pdata->phy_mask;
>  
> -	if (np) {
> -		err = of_mdiobus_register(bp->mii_bus, np);
> -	} else {
> -		if (pdata)
> -			bp->mii_bus->phy_mask = pdata->phy_mask;
> -
> -		err = mdiobus_register(bp->mii_bus);
> -	}
> -
> +	err = of_mdiobus_register(bp->mii_bus, np);
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		err = mdiobus_register(fep->mii_bus);
> -	}
> -
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
> index 0495487f7b42..c5dac6bd2be4 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
>  		goto out_mdio;
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		goto out_mdio;
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index f5f37bfa1d58..5df1a608e566 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	new_bus->phy_mask = mdio_bus_data->phy_mask;
>  	new_bus->parent = priv->device;
>  
> -	if (mdio_node)
> -		err = of_mdiobus_register(new_bus, mdio_node);
> -	else
> -		err = mdiobus_register(new_bus);
> +	err = of_mdiobus_register(new_bus, mdio_node);
>  	if (err != 0) {
>  		dev_err(dev, "Cannot register the MDIO bus\n");
>  		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..8ac72831af05 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
>  	 * defined to support backward compatibility with DTs which assume that
>  	 * Davinci MDIO will always scan the bus for PHYs detection.
>  	 */
> -	if (dev->of_node && of_get_child_count(dev->of_node)) {
> +	if (dev->of_node && of_get_child_count(dev->of_node))
>  		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>  	if (ret)
>  		goto bail_out;
>  
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
> index b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
>  	if (!new_bus)
>  		return -ENODEV;
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(new_bus);
> -
> +	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
>  	if (ret)
>  		mdio_gpio_bus_deinit(&pdev->dev);
>  
> diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
> index 8c689ccfdbca..badbc99bedd3 100644
> --- a/drivers/net/phy/mdio-mscc-miim.c
> +++ b/drivers/net/phy/mdio-mscc-miim.c
> @@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> -
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		return ret;
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		ret = mdiobus_register(dev->mdiobus);
> -	}
>  	if (ret) {
>  		netdev_err(dev->net, "can't register MDIO bus\n");
>  		goto exit1;
> -- 
> 2.14.1
> 

-- 
Antoine Ténart, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Antoine Tenart]

Hi Florian,

On Tue, May 15, 2018 at 04:56:19PM -0700, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----

For mvmdio,
Reviewed-by: Antoine Tenart <antoine.tenart@bootlin.com>

Thanks!
Antoine

>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)
>  		of_node_put(dn);
>  
>  	return err;
> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
> index b23c11d9f4b2..2bb3f03ee1cb 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2454,10 +2454,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
>  			return err;
>  	}
>  
> -	if (np)
> -		err = of_mdiobus_register(bus, np);
> -	else
> -		err = mdiobus_register(bus);
> +	err = of_mdiobus_register(bus, np);
>  	if (err) {
>  		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
>  		mv88e6xxx_g2_irq_mdio_free(chip, bus);
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index b4c9268100bb..3e93df5d4e3b 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -591,16 +591,10 @@ static int macb_mii_init(struct macb *bp)
>  	dev_set_drvdata(&bp->dev->dev, bp->mii_bus);
>  
>  	np = bp->pdev->dev.of_node;
> +	if (pdata)
> +		bp->mii_bus->phy_mask = pdata->phy_mask;
>  
> -	if (np) {
> -		err = of_mdiobus_register(bp->mii_bus, np);
> -	} else {
> -		if (pdata)
> -			bp->mii_bus->phy_mask = pdata->phy_mask;
> -
> -		err = mdiobus_register(bp->mii_bus);
> -	}
> -
> +	err = of_mdiobus_register(bp->mii_bus, np);
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		err = mdiobus_register(fep->mii_bus);
> -	}
> -
>  	if (err)
>  		goto err_out_free_mdiobus;
>  
> diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
> index 0495487f7b42..c5dac6bd2be4 100644
> --- a/drivers/net/ethernet/marvell/mvmdio.c
> +++ b/drivers/net/ethernet/marvell/mvmdio.c
> @@ -348,10 +348,7 @@ static int orion_mdio_probe(struct platform_device *pdev)
>  		goto out_mdio;
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		goto out_mdio;
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> index f5f37bfa1d58..5df1a608e566 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
> @@ -233,10 +233,7 @@ int stmmac_mdio_register(struct net_device *ndev)
>  	new_bus->phy_mask = mdio_bus_data->phy_mask;
>  	new_bus->parent = priv->device;
>  
> -	if (mdio_node)
> -		err = of_mdiobus_register(new_bus, mdio_node);
> -	else
> -		err = mdiobus_register(new_bus);
> +	err = of_mdiobus_register(new_bus, mdio_node);
>  	if (err != 0) {
>  		dev_err(dev, "Cannot register the MDIO bus\n");
>  		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..8ac72831af05 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -429,12 +429,10 @@ static int davinci_mdio_probe(struct platform_device *pdev)
>  	 * defined to support backward compatibility with DTs which assume that
>  	 * Davinci MDIO will always scan the bus for PHYs detection.
>  	 */
> -	if (dev->of_node && of_get_child_count(dev->of_node)) {
> +	if (dev->of_node && of_get_child_count(dev->of_node))
>  		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>  	if (ret)
>  		goto bail_out;
>  
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
> index b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)
>  	if (!new_bus)
>  		return -ENODEV;
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(new_bus);
> -
> +	ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
>  	if (ret)
>  		mdio_gpio_bus_deinit(&pdev->dev);
>  
> diff --git a/drivers/net/phy/mdio-mscc-miim.c b/drivers/net/phy/mdio-mscc-miim.c
> index 8c689ccfdbca..badbc99bedd3 100644
> --- a/drivers/net/phy/mdio-mscc-miim.c
> +++ b/drivers/net/phy/mdio-mscc-miim.c
> @@ -151,11 +151,7 @@ static int mscc_miim_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	if (pdev->dev.of_node)
> -		ret = of_mdiobus_register(bus, pdev->dev.of_node);
> -	else
> -		ret = mdiobus_register(bus);
> -
> +	ret = of_mdiobus_register(bus, pdev->dev.of_node);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
>  		return ret;
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);
> -	} else {
> -		ret = mdiobus_register(dev->mdiobus);
> -	}
>  	if (ret) {
>  		netdev_err(dev->net, "can't register MDIO bus\n");
>  		goto exit1;
> -- 
> 2.14.1
> 

-- 
Antoine Ténart, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Jose Abreu]

On 16-05-2018 00:56, Florian Fainelli wrote:
> A number of drivers have the following pattern:
>
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
>
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----

For stmmac:

Reviewed-by: Jose Abreu <joabreu@synopsys.com>

Thanks and Best Regards,
Jose Miguel Abreu

>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
>

[net-next,v2,2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Jose Abreu]

On 16-05-2018 00:56, Florian Fainelli wrote:
> A number of drivers have the following pattern:
>
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
>
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----

For stmmac:

Reviewed-by: Jose Abreu <joabreu@synopsys.com>

Thanks and Best Regards,
Jose Miguel Abreu

>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
>
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Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Jose Abreu]

On 16-05-2018 00:56, Florian Fainelli wrote:
> A number of drivers have the following pattern:
>
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
>
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----

For stmmac:

Reviewed-by: Jose Abreu <joabreu@synopsys.com>

Thanks and Best Regards,
Jose Miguel Abreu

>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
>

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Jose Abreu]

On 16-05-2018 00:56, Florian Fainelli wrote:
> A number of drivers have the following pattern:
>
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
>
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>  drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>  drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>  drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>  drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>  drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>  drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----

For stmmac:

Reviewed-by: Jose Abreu <joabreu@synopsys.com>

Thanks and Best Regards,
Jose Miguel Abreu

>  drivers/net/ethernet/ti/davinci_mdio.c            |  8 +++-----
>  drivers/net/phy/mdio-gpio.c                       |  6 +-----
>  drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>  drivers/net/usb/lan78xx.c                         |  7 ++-----
>  11 files changed, 20 insertions(+), 61 deletions(-)
>

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Sergei Shtylyov]

Hello!

On 05/16/2018 02:56 AM, Florian Fainelli wrote:

> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
[...]

> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)

   of_node_put() checks for NULL.

>  		of_node_put(dn);
>  
>  	return err;
[...]
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);

   Same comment here.

[...]
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  

   This part is:

Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

[...]
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);

   of_node_put() checks for NULL, again...

MBR, Sergei

[net-next,v2,2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Sergei Shtylyov]

Hello!

On 05/16/2018 02:56 AM, Florian Fainelli wrote:

> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
[...]

> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)

   of_node_put() checks for NULL.

>  		of_node_put(dn);
>  
>  	return err;
[...]
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);

   Same comment here.

[...]
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  

   This part is:

Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

[...]
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);

   of_node_put() checks for NULL, again...

MBR, Sergei
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Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Sergei Shtylyov]

Hello!

On 05/16/2018 02:56 AM, Florian Fainelli wrote:

> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
[...]

> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)

   of_node_put() checks for NULL.

>  		of_node_put(dn);
>  
>  	return err;
[...]
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);

   Same comment here.

[...]
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  

   This part is:

Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

[...]
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);

   of_node_put() checks for NULL, again...

MBR, Sergei

Re: [PATCH net-next v2 2/2] drivers: net: Remove device_node checks with of_mdiobus_register()

[Sergei Shtylyov]

Hello!

On 05/16/2018 02:56 AM, Florian Fainelli wrote:

> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
[...]

> diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
> index ac621f44237a..02e8982519ce 100644
> --- a/drivers/net/dsa/bcm_sf2.c
> +++ b/drivers/net/dsa/bcm_sf2.c
> @@ -450,12 +450,8 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
>  	priv->slave_mii_bus->parent = ds->dev->parent;
>  	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
>  
> -	if (dn)
> -		err = of_mdiobus_register(priv->slave_mii_bus, dn);
> -	else
> -		err = mdiobus_register(priv->slave_mii_bus);
> -
> -	if (err)
> +	err = of_mdiobus_register(priv->slave_mii_bus, dn);
> +	if (err && dn)

   of_node_put() checks for NULL.

>  		of_node_put(dn);
>  
>  	return err;
[...]
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index d4604bc8eb5b..f3e43db0d6cb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -2052,13 +2052,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
>  	fep->mii_bus->parent = &pdev->dev;
>  
>  	node = of_get_child_by_name(pdev->dev.of_node, "mdio");
> -	if (node) {
> -		err = of_mdiobus_register(fep->mii_bus, node);
> +	err = of_mdiobus_register(fep->mii_bus, node);
> +	if (node)
>  		of_node_put(node);

   Same comment here.

[...]
> diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
> index 5970d9e5ddf1..8dd41e08a6c6 100644
> --- a/drivers/net/ethernet/renesas/sh_eth.c
> +++ b/drivers/net/ethernet/renesas/sh_eth.c
> @@ -3025,15 +3025,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
>  		 pdev->name, pdev->id);
>  
>  	/* register MDIO bus */
> -	if (dev->of_node) {
> -		ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
> -	} else {
> -		if (pd->phy_irq > 0)
> -			mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
> -
> -		ret = mdiobus_register(mdp->mii_bus);
> -	}
> +	if (pd->phy_irq > 0)
> +		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
>  
> +	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
>  	if (ret)
>  		goto out_free_bus;
>  

   This part is:

Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

[...]
> diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
> index 91761436709a..8dff87ec6d99 100644
> --- a/drivers/net/usb/lan78xx.c
> +++ b/drivers/net/usb/lan78xx.c
> @@ -1843,12 +1843,9 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
>  	}
>  
>  	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
> -	if (node) {
> -		ret = of_mdiobus_register(dev->mdiobus, node);
> +	ret = of_mdiobus_register(dev->mdiobus, node);
> +	if (node)
>  		of_node_put(node);

   of_node_put() checks for NULL, again...

MBR, Sergei

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Geert Uytterhoeven]

Hi Florian,

Thanks for your series!
I like the effect on simplifying drivers.

On Wed, May 16, 2018 at 1:56 AM, Florian Fainelli <f.fainelli@gmail.com> wrote:
> This patch series updates of_mdiobus_register() such that when the device_node
> argument is NULL, it calls mdiobus_register() directly. This is consistent with
> the behavior of of_mdiobus_register() when CONFIG_OF=n.

IMHO the CONFIG_OF=n behavior of of_mdiobus_register() (which I wasn't
aware of) is inconsistent with the behavior of other of_*() functions,
which are just empty stubs.

So I'm wondering if you should do it the other way around, and let
mdiobus_register() call of_mdiobus_register() if dev->of_node exists?

This does mean mdiobus_register() should gain a struct device * parameter,
and thus changes to many more drivers are needed.

> I only converted the most obvious drivers, there are others that have a much
> less obvious behavior and specifically attempt to deal with CONFIG_ACPI.

I haven't looked at the ACPI handling, but perhaps this can be moved
inside mdiobus_register() as well?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Geert Uytterhoeven]

Hi Florian,

Thanks for your series!
I like the effect on simplifying drivers.

On Wed, May 16, 2018 at 1:56 AM, Florian Fainelli <f.fainelli@gmail.com> wrote:
> This patch series updates of_mdiobus_register() such that when the device_node
> argument is NULL, it calls mdiobus_register() directly. This is consistent with
> the behavior of of_mdiobus_register() when CONFIG_OF=n.

IMHO the CONFIG_OF=n behavior of of_mdiobus_register() (which I wasn't
aware of) is inconsistent with the behavior of other of_*() functions,
which are just empty stubs.

So I'm wondering if you should do it the other way around, and let
mdiobus_register() call of_mdiobus_register() if dev->of_node exists?

This does mean mdiobus_register() should gain a struct device * parameter,
and thus changes to many more drivers are needed.

> I only converted the most obvious drivers, there are others that have a much
> less obvious behavior and specifically attempt to deal with CONFIG_ACPI.

I haven't looked at the ACPI handling, but perhaps this can be moved
inside mdiobus_register() as well?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Geert Uytterhoeven]

Hi Florian,

Thanks for your series!
I like the effect on simplifying drivers.

On Wed, May 16, 2018 at 1:56 AM, Florian Fainelli <f.fainelli@gmail.com> wrote:
> This patch series updates of_mdiobus_register() such that when the device_node
> argument is NULL, it calls mdiobus_register() directly. This is consistent with
> the behavior of of_mdiobus_register() when CONFIG_OF=n.

IMHO the CONFIG_OF=n behavior of of_mdiobus_register() (which I wasn't
aware of) is inconsistent with the behavior of other of_*() functions,
which are just empty stubs.

So I'm wondering if you should do it the other way around, and let
mdiobus_register() call of_mdiobus_register() if dev->of_node exists?

This does mean mdiobus_register() should gain a struct device * parameter,
and thus changes to many more drivers are needed.

> I only converted the most obvious drivers, there are others that have a much
> less obvious behavior and specifically attempt to deal with CONFIG_ACPI.

I haven't looked at the ACPI handling, but perhaps this can be moved
inside mdiobus_register() as well?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Andrew Lunn]

On Wed, May 16, 2018 at 10:54:12AM +0200, Geert Uytterhoeven wrote:
> Hi Florian,
> 
> Thanks for your series!
> I like the effect on simplifying drivers.
> 
> On Wed, May 16, 2018 at 1:56 AM, Florian Fainelli <f.fainelli@gmail.com> wrote:
> > This patch series updates of_mdiobus_register() such that when the device_node
> > argument is NULL, it calls mdiobus_register() directly. This is consistent with
> > the behavior of of_mdiobus_register() when CONFIG_OF=n.
> 
> IMHO the CONFIG_OF=n behavior of of_mdiobus_register() (which I wasn't
> aware of) is inconsistent with the behavior of other of_*() functions,
> which are just empty stubs.
> 
> So I'm wondering if you should do it the other way around, and let
> mdiobus_register() call of_mdiobus_register() if dev->of_node exists?

Hi Geert

dev->of_node is often not the correct OF node. The mdio properties are
often embedded inside a MAC driver, and use an 'mdio' container
node. This container node is needed, not the device node.

> I haven't looked at the ACPI handling, but perhaps this can be moved
> inside mdiobus_register() as well?

The ACPI binding for MDIO and PHYs has not been defined yet.

    Andrew

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Andrew Lunn]

On Wed, May 16, 2018 at 10:54:12AM +0200, Geert Uytterhoeven wrote:
> Hi Florian,
> 
> Thanks for your series!
> I like the effect on simplifying drivers.
> 
> On Wed, May 16, 2018 at 1:56 AM, Florian Fainelli <f.fainelli@gmail.com> wrote:
> > This patch series updates of_mdiobus_register() such that when the device_node
> > argument is NULL, it calls mdiobus_register() directly. This is consistent with
> > the behavior of of_mdiobus_register() when CONFIG_OF=n.
> 
> IMHO the CONFIG_OF=n behavior of of_mdiobus_register() (which I wasn't
> aware of) is inconsistent with the behavior of other of_*() functions,
> which are just empty stubs.
> 
> So I'm wondering if you should do it the other way around, and let
> mdiobus_register() call of_mdiobus_register() if dev->of_node exists?

Hi Geert

dev->of_node is often not the correct OF node. The mdio properties are
often embedded inside a MAC driver, and use an 'mdio' container
node. This container node is needed, not the device node.

> I haven't looked at the ACPI handling, but perhaps this can be moved
> inside mdiobus_register() as well?

The ACPI binding for MDIO and PHYs has not been defined yet.

    Andrew

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Andrew Lunn]

On Wed, May 16, 2018 at 10:54:12AM +0200, Geert Uytterhoeven wrote:
> Hi Florian,
> 
> Thanks for your series!
> I like the effect on simplifying drivers.
> 
> On Wed, May 16, 2018 at 1:56 AM, Florian Fainelli <f.fainelli@gmail.com> wrote:
> > This patch series updates of_mdiobus_register() such that when the device_node
> > argument is NULL, it calls mdiobus_register() directly. This is consistent with
> > the behavior of of_mdiobus_register() when CONFIG_OF=n.
> 
> IMHO the CONFIG_OF=n behavior of of_mdiobus_register() (which I wasn't
> aware of) is inconsistent with the behavior of other of_*() functions,
> which are just empty stubs.
> 
> So I'm wondering if you should do it the other way around, and let
> mdiobus_register() call of_mdiobus_register() if dev->of_node exists?

Hi Geert

dev->of_node is often not the correct OF node. The mdio properties are
often embedded inside a MAC driver, and use an 'mdio' container
node. This container node is needed, not the device node.

> I haven't looked at the ACPI handling, but perhaps this can be moved
> inside mdiobus_register() as well?

The ACPI binding for MDIO and PHYs has not been defined yet.

    Andrew

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[David Miller]

From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 15 May 2018 16:56:17 -0700

> This patch series updates of_mdiobus_register() such that when the device_node
> argument is NULL, it calls mdiobus_register() directly. This is consistent with
> the behavior of of_mdiobus_register() when CONFIG_OF=n.
> 
> I only converted the most obvious drivers, there are others that have a much
> less obvious behavior and specifically attempt to deal with CONFIG_ACPI.
> 
> Changes in v2:
> 
> - fixed build error in davincin_mdio.c (Grygorii)
> - reworked first patch a bit: commit message, subject and removed useless
>   code comment

Based upon Andrew's response to Geert's feedback, I'm applying this series.

Thanks.

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Geert Uytterhoeven]

Hi David,

On Wed, May 16, 2018 at 8:21 PM, David Miller <davem@davemloft.net> wrote:
> From: Florian Fainelli <f.fainelli@gmail.com>
> Date: Tue, 15 May 2018 16:56:17 -0700
>
>> This patch series updates of_mdiobus_register() such that when the device_node
>> argument is NULL, it calls mdiobus_register() directly. This is consistent with
>> the behavior of of_mdiobus_register() when CONFIG_OF=n.
>>
>> I only converted the most obvious drivers, there are others that have a much
>> less obvious behavior and specifically attempt to deal with CONFIG_ACPI.
>>
>> Changes in v2:
>>
>> - fixed build error in davincin_mdio.c (Grygorii)
>> - reworked first patch a bit: commit message, subject and removed useless
>>   code comment
>
> Based upon Andrew's response to Geert's feedback, I'm applying this series.

Thanks, his feedback made perfect sense.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH net-next v2 0/2] of: mdio: Fall back to mdiobus_register() with NULL device_node

[Geert Uytterhoeven]

Hi David,

On Wed, May 16, 2018 at 8:21 PM, David Miller <davem@davemloft.net> wrote:
> From: Florian Fainelli <f.fainelli@gmail.com>
> Date: Tue, 15 May 2018 16:56:17 -0700
>
>> This patch series updates of_mdiobus_register() such that when the device_node
>> argument is NULL, it calls mdiobus_register() directly. This is consistent with
>> the behavior of of_mdiobus_register() when CONFIG_OF=n.
>>
>> I only converted the most obvious drivers, there are others that have a much
>> less obvious behavior and specifically attempt to deal with CONFIG_ACPI.
>>
>> Changes in v2:
>>
>> - fixed build error in davincin_mdio.c (Grygorii)
>> - reworked first patch a bit: commit message, subject and removed useless
>>   code comment
>
> Based upon Andrew's response to Geert's feedback, I'm applying this series.

Thanks, his feedback made perfect sense.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds