linux-kernel - Re: [PATCH 5/6] net: bcmgenet: Fetch MAC address from the adapter

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Message-ID: <20200201153709.GK9639@lunn.ch>
Date:   Sat, 1 Feb 2020 16:37:09 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Jeremy Linton <jeremy.linton@....com>
Cc:     netdev@...r.kernel.org, opendmb@...il.com, f.fainelli@...il.com,
        davem@...emloft.net, bcm-kernel-feedback-list@...adcom.com,
        linux-kernel@...r.kernel.org, wahrenst@....net,
        hkallweit1@...il.com
Subject: Re: [PATCH 5/6] net: bcmgenet: Fetch MAC address from the adapter

> @@ -3601,6 +3605,23 @@ static int bcmgenet_probe(struct platform_device *pdev)
>  	    !strcasecmp(phy_mode_str, "internal"))
>  		bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
>  
> +	if (dn)
> +		macaddr = of_get_mac_address(dn);
> +	else if (pd)
> +		macaddr = pd->mac_address;
> +
> +	if (IS_ERR_OR_NULL(macaddr) || !is_valid_ether_addr(macaddr)) {
> +		if (has_acpi_companion(&pdev->dev))
> +			bcmgenet_get_hw_addr(priv, dev->dev_addr);
> +
> +		if (!is_valid_ether_addr(dev->dev_addr)) {
> +			dev_warn(&pdev->dev, "using random Ethernet MAC\n");
> +			eth_hw_addr_random(dev);
> +		}
> +	} else {
> +		ether_addr_copy(dev->dev_addr, macaddr);
> +	}
> +

Could you also maybe put in here somewhere a call to
device_get_mac_address(), to support getting the MAC address out of
ACPI?

	Andrew