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Message-ID: <c0ec8d22-534b-4962-b5b2-ff6391b32b1b@lunn.ch>
Date:   Thu, 21 Sep 2023 18:32:31 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Roger Quadros <rogerq@...nel.org>
Cc:     MD Danish Anwar <danishanwar@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Richard Cochran <richardcochran@...il.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>, vladimir.oltean@....com,
        Simon Horman <horms@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, srk@...com, r-gunasekaran@...com,
        Roger Quadros <rogerq@...com>
Subject: Re: [PATCH net-next v2] net: ti: icssg_prueth: add TAPRIO offload
 support

> > +	if (!netif_running(ndev)) {
> > +		netdev_err(ndev, "interface is down, link speed unknown\n");
> > +		return -ENETDOWN;
> > +	}
> 
> Do we really need this?

The error message suggests it is wrong anyway. netif_running() being
true means it is admin up. But the carrier might be down, and so the
link speed is unknown. So maybe this should be using netif_carrier_ok() ?

     Andrew

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