Re: [PATCH net-next] net: phy: marvell: wake the system only from the WoL event

[Andrew Lunn]

> +static int marvell_wol_suspend_intrs(struct phy_device *phydev)
> +{
> +	int oldpage, ret;
> +
> +	oldpage = phy_save_page(phydev);
> +	if (oldpage < 0)
> +		return oldpage;
> +
> +	ret = marvell_write_page(phydev, MII_MARVELL_COPPER_PAGE);
> +	if (ret < 0)
> +		goto out;
> +
> +	ret = __phy_write(phydev, MII_88E1318S_PHY_CSIER,
> +			  MII_88E1318S_PHY_CSIER_WOL_EIE);
> +out:
> +	return phy_restore_page(phydev, oldpage, ret);

What is all the oldpage code for?

     Andrew