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There are repeated instances of: fwnode = priv->plat->port_node; if (!fwnode) fwnode = dev_fwnode(priv->device); However, the only place that ->port_node is set is stmmac_probe_config_dt(): struct device_node *np = pdev->dev.of_node; ... /* PHYLINK automatically parses the phy-handle property */ plat->port_node = of_fwnode_handle(np); which is equivalent to dev_fwnode(&pdev->dev) and, as priv->device will be &pdev->dev, is also equivalent to dev_fwnode(priv->device). Thus, plat_dat->port_node doesn't provide any extra benefit over using dev_fwnode(priv->device) directly. There is one case where port_node is used directly, which can be found in stmmac_pcs_setup(). This may cause a change of behaviour as PCI drivers do not populate plat_dat->port_node, but dev_fwnode(priv->device) may be valid. PCI-based stmmac should be tested. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://patch.msgid.link/E1vvuX3-0000000Avme-3oej@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>