netdev - Re: [PATCH] net: phy: phy_remove_link_mode should not advertise new modes

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Message-ID: <20200715190116.GC1256692@lunn.ch>
Date:   Wed, 15 Jul 2020 21:01:16 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Helmut Grohne <helmut.grohne@...enta.de>,
        David Miller <davem@...emloft.net>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "hkallweit1@...il.com" <hkallweit1@...il.com>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "woojung.huh@...rochip.com" <woojung.huh@...rochip.com>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        "vivien.didelot@...il.com" <vivien.didelot@...il.com>
Subject: Re: [PATCH] net: phy: phy_remove_link_mode should not advertise new
 modes

> Is 
> 
> Case C: driver does not initialize advertised at all and depends on
>         phy_remove_link_mode() to do it
> 
> possible?

No. phylib initializes advertise to supported as part of probing the
PHY. So the PHY by default advertises everything it supports, except
the oddities of Pause.

    Andrew