On Tue Oct 06 2020, Vladimir Oltean wrote: > On Tue, Oct 06, 2020 at 03:30:36PM +0200, Kurt Kanzenbach wrote: >> That's the point. The user (or anybody else) cannot disable hardware >> stamping, because it is always performed. So, why should it be allowed >> to disable it even when it cannot be disabled? > > Because your driver's user can attach a PTP PHY to your switch port, and > the network stack doesn't support multiple TX timestamps attached to the > same skb. They'll want the TX timestamp from the PHY and not from your > switch. Yeah, sure. That use case makes sense. What's the problem exactly? Thanks, Kurt
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