Messages in this thread | | | Date | Tue, 21 Nov 2023 15:40:34 -0800 | From | Richard Cochran <> | Subject | Re: [PATCH net-next v7 15/16] net: ethtool: ts: Let the active time stamping layer be selectable |
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On Tue, Nov 21, 2023 at 06:31:14PM +0100, Köry Maincent wrote: > If I summarize, a solution could be this: > > - Expand struct hwtstamp_config with a phc_index member for the SIOCG/SHWTSTAMP > commands. > To keep backward compatibility if phc_index is not set in the hwtstamp_config > data from userspace use the default hwtstamp (the default being selected as > done in my patch series). > Is this possible, would it breaks things?
You can't "expand" hwtstamp_config because it is an established ABI.
(You could introduce SIOC[GS]HWTSTAMP_2 with an expanded layout)
Thanks, Richard
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