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Message-ID: <ZZPoKceXELZQU8cq@shell.armlinux.org.uk>
Date: Tue, 2 Jan 2024 10:40:41 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Yanteng Si <siyanteng@...ngson.cn>
Cc: andrew@...n.ch, hkallweit1@...il.com, peppe.cavallaro@...com,
	alexandre.torgue@...s.st.com, joabreu@...opsys.com,
	fancer.lancer@...il.com, Jose.Abreu@...opsys.com,
	chenhuacai@...ngson.cn, guyinggang@...ngson.cn,
	netdev@...r.kernel.org, chris.chenfeiyang@...il.com
Subject: Re: [PATCH net-next v7 3/9] net: stmmac: dwmac-loongson: Add full
 PCI support

On Tue, Dec 19, 2023 at 10:17:06PM +0800, Yanteng Si wrote:
> @@ -125,42 +126,48 @@ static int loongson_dwmac_probe(struct pci_dev *pdev,
>  	if (ret)
>  		goto err_disable_device;
>  
> -	bus_id = of_alias_get_id(np, "ethernet");
> -	if (bus_id >= 0)
> -		plat->bus_id = bus_id;
> +	if (np) {
> +		bus_id = of_alias_get_id(np, "ethernet");
> +		if (bus_id >= 0)
> +			plat->bus_id = bus_id;
>  
> -	phy_mode = device_get_phy_mode(&pdev->dev);
> -	if (phy_mode < 0) {
> -		dev_err(&pdev->dev, "phy_mode not found\n");
> -		ret = phy_mode;
> -		goto err_disable_device;
> +		phy_mode = device_get_phy_mode(&pdev->dev);
> +		if (phy_mode < 0) {
> +			dev_err(&pdev->dev, "phy_mode not found\n");
> +			ret = phy_mode;
> +			goto err_disable_device;
> +		}
> +		plat->phy_interface = phy_mode;
>  	}
>  
> -	plat->phy_interface = phy_mode;
> -

So this is why phy_interface changes in patch 2. It would have been good
to make a forward reference to this change to explain in patch 2 why the
"default" value has been set there. Or maybe move the setting of that
default value into this patch?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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