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Date:   Sat, 09 Feb 2019 09:33:12 -0800 (PST)
From:   David Miller <>
Subject: Re: [PATCH net-next] net: phy: Add support for asking the PHY its

From: Heiner Kallweit <>
Date: Sat, 9 Feb 2019 15:24:47 +0100

> From: Andrew Lunn <>
> Add support for runtime determination of what the PHY supports, by
> adding a new function to the phy driver. The get_features call should
> set the phydev->supported member with the features the PHY supports.
> It is only called if phydrv->features is NULL.
> This requires minor changes to pause. The PHY driver should not set
> pause abilities, except for when it has odd cause capabilities, e.g.
> pause cannot be disabled. With this change, phydev->supported already
> contains the drivers abilities, including pause. So rather than
> considering phydrv->features, look at the phydev->supported, and
> enable pause if neither of the pause bits are already set.
> Signed-off-by: Andrew Lunn <>
> [ fixed small checkpatch complaint in one comment]
> Signed-off-by: Heiner Kallweit <>


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