Re: [PATCH 14/28] net: split eth_platform_get_mac_address() into subroutines

[Andy Shevchenko]

On Wed, Aug 8, 2018 at 6:31 PM, Bartosz Golaszewski <brgl@xxxxxxxx> wrote:
> From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
>
> We want do add more sources from which to read the MAC address. In
> order to avoid bloating this function too much, start by splitting it
> into subroutines, each of which takes care of reading the MAC from
> one source.

> +static int mac_address_from_of(struct device *dev, u8 *mac_addr)
>  {
>         const unsigned char *addr;
> +       struct device_node *np;
>

> +       np = dev_is_pci(dev) ? pci_device_to_OF_node(to_pci_dev(dev))
> +                            : dev->of_node;

I didn't get these manipulations.

What the scenario when pci_dev->dev.of_node != dev->of_node?

-- 
With Best Regards,
Andy Shevchenko