Currently, the function stmmac_mdio_register() is only used by
stmmac_dvr_probe() from stmmac_main.c, in order to register the MDIO bus
and probe information about the PHY. As this function is called before
calling register_netdev(), all messages logged from stmmac_mdio_register
are prefixed by "(unnamed net_device)". The goal of netdev_info or
netdev_err is to dump useful infos about a net_device, when this data
structure is partially initialized, there is no point for using these

This commit fixes the issue by replacing all netdev_*() by the
corresponding dev_*() function for logging. The last netdev_info is
replaced by phy_attached_info(), as a valid phydev can be used at this

Signed-off-by: Romain Perier <>
Reviewed-by: Andrew Lunn <>

Changes in v3:
- Replaced phy_attached_print by phy_attached_info, makes more sense
- Added Reviewed-by tag by Andrew

Changes in v2:
- Replaced dev_info() by phy_attached_print()
- Simplified message because informations were redudant
- Updated commit message

 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c 
index db157a47000c..72ec711fcba2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -204,6 +204,7 @@ int stmmac_mdio_register(struct net_device *ndev)
        struct stmmac_priv *priv = netdev_priv(ndev);
        struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
        struct device_node *mdio_node = priv->plat->mdio_node;
+       struct device *dev = ndev->dev.parent;
        int addr, found;
        if (!mdio_bus_data)
@@ -237,7 +238,7 @@ int stmmac_mdio_register(struct net_device *ndev)
                err = mdiobus_register(new_bus);
        if (err != 0) {
-               netdev_err(ndev, "Cannot register the MDIO bus\n");
+               dev_err(dev, "Cannot register the MDIO bus\n");
                goto bus_register_fail;
@@ -285,14 +286,12 @@ int stmmac_mdio_register(struct net_device *ndev)
                        irq_str = irq_num;
-               netdev_info(ndev, "PHY ID %08x at %d IRQ %s (%s)%s\n",
-                           phydev->phy_id, addr, irq_str, phydev_name(phydev),
-                           act ? " active" : "");
+               phy_attached_info(phydev);
                found = 1;
        if (!found && !mdio_node) {
-               netdev_warn(ndev, "No PHY found\n");
+               dev_warn(dev, "No PHY found\n");
                return -ENODEV;

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