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Date:   Thu, 24 Dec 2020 13:21:36 -0800
From:   Richard Cochran <richardcochran@...il.com>
To:     Grygorii Strashko <grygorii.strashko@...com>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org,
        Vignesh Raghavendra <vigneshr@...com>,
        Lokesh Vutla <lokeshvutla@...com>
Subject: Re: [PATCH net] net: ethernet: ti: cpts: fix ethtool output when no
 ptp_clock registered

On Thu, Dec 24, 2020 at 06:24:05PM +0200, Grygorii Strashko wrote:
> The CPTS driver registers PTP PHC clock when first netif is going up and
> unregister it when all netif are down. Now ethtool will show:
>  - PTP PHC clock index 0 after boot until first netif is up;
>  - the last assigned PTP PHC clock index even if PTP PHC clock is not
> registered any more after all netifs are down.
> 
> This patch ensures that -1 is returned by ethtool when PTP PHC clock is not
> registered any more.
> 
> Fixes: 8a2c9a5ab4b9 ("net: ethernet: ti: cpts: rework initialization/deinitialization")
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>

Acked-by: Richard Cochran <richardcochran@...il.com>

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