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Date:   Tue, 5 Apr 2022 12:48:51 -0700
From:   Jakub Kicinski <kuba@kernel.org>
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     Matej Zachar <zachar.matej@gmail.com>, netdev@vger.kernel.org
Subject: Re: [DSA] fallback PTP to master port when switch does not support
 it
Message-ID: <20220405124851.38fb977d@kernel.org>
In-Reply-To: <YktrbtbSr77bDckl@lunn.ch>
References: <25688175-1039-44C7-A57E-EB93527B1615@gmail.com>
        <YktrbtbSr77bDckl@lunn.ch>
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On Tue, 5 Apr 2022 00:04:30 +0200 Andrew Lunn wrote:
> What i don't like about your proposed fallback is that it gives the
> impression the slave ports actually support PTP, when they do not.

+1, running PTP on the master means there is a non-PTP-aware switch 
in the path, which should not be taken lightly.