Re: [net-next PATCH v2 04/14] net: phy: Introduce fwnode_get_phy_id()

[Calvin Johnson <calvin.johnson@xxxxxxxxxxx>]

On Tue, Dec 15, 2020 at 07:28:10PM +0200, Andy Shevchenko wrote:
> On Tue, Dec 15, 2020 at 6:44 PM Calvin Johnson
> <calvin.johnson@xxxxxxxxxxx> wrote:
> >
> > Extract phy_id from compatible string. This will be used by
> > fwnode_mdiobus_register_phy() to create phy device using the
> > phy_id.
> 
> ...
> 
> > +       if (sscanf(cp, "ethernet-phy-id%4x.%4x", &upper, &lower) == 2) {
> > +               *phy_id = ((upper & 0xFFFF) << 16) | (lower & 0xFFFF);
> > +               return 0;
> > +       }
> > +       return -EINVAL;
> 
> Perhaps traditional pattern, i.e.
>        if (sscanf(cp, "ethernet-phy-id%4x.%4x", &upper, &lower) != 2)
>                return -EINVAL;
> 
>        *phy_id = ((upper & 0xFFFF) << 16) | (lower & 0xFFFF);
>        return 0;
> 
> And perhaps GENMASK() ?

Sure. Will rewrite accordingly.

Thanks
Calvin