> -----Original Message-----
> From: Richard Cochran <richardcoch...@gmail.com>
> Sent: Wednesday, July 14, 2021 6:03 AM
> To: Keller, Jacob E <jacob.e.kel...@intel.com>
> Cc: linuxptp-devel@lists.sourceforge.net
> Subject: Re: [Linuxptp-devel] [PATCH] Increase the default
> tx_timestamp_timeout
> to 5
>
> On Wed, Jul 14, 2021 at 11:20:23AM +0000, Keller, Jacob E wrote:
> > What about at least checking for the case where a timestamp was never
> > started? Drivers are supposed to set a flag in the SKB when they start a
> > timestamp (and not set it if they can't start it).
>
> How could that happen?
>
> Putting aside egregious driver bugs, it is hard for me to imagine a
> use case that would cause this failure mode.
>
> Thanks,
> Richard
It only matters for hardware which can only handle 1 timestamp at a time, and
only in the case where either an application isn't waiting for timestamps, or
for when multiple applications try using it at once I guess.
Thanks,
Jake
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