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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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