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Date:   Thu, 16 Jul 2020 14:06:02 -0700
From:   Jakub Kicinski <kuba@kernel.org>
To:     Sergey Organov <sorganov@gmail.com>
Cc:     netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        Fugang Duan <fugang.duan@nxp.com>,
        "David S. Miller" <davem@davemloft.net>,
        Richard Cochran <richardcochran@gmail.com>,
        Vladimir Oltean <olteanv@gmail.com>
Subject: Re: [PATCH v3 net] net: fec: fix hardware time stamping by external
 devices
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On Thu, 16 Jul 2020 23:38:13 +0300 Sergey Organov wrote:
> > Applied, and added to the stable queue, thanks!  
> 
> Thanks, and I've also got a no-brainer patch that lets this bug fix
> compile as-is with older kernels, where there were no phy_has_hwtstamp()
> function. Dunno how to properly handle this. Here is the patch (on
> top of v4.9.146), just in case:

I see, I'll only add it to 5.7. By default we backport net fixes to
the two most recent releases, anyway. Could you send a patch that will 
work on 4.4 or 4.9 - 5.4 to Greg yourself once this hits Linus's tree
in a week or two?