Re: [PATCH net] net: ethernet: ti: am65-cpts: fix support for PTP_EXTTS_REQUEST2 ioctl

[James Clark]

On Tue, 20 Oct 2026 07:35:25 +0700, James Clark wrote:
> Commit 7c571ac57d9d ("net: ptp: introduce .supported_extts_flags to
> ptp_clock_info") modified the PTP core to validate the supported flags
> of external timestamp requests, rather than relying on each driver to
> check them.
>
> am65_cpts_extts_enable() ignores the flags, and am65-cpts was not given
> any .supported_extts_flags. Since PTP_EXTTS_REQUEST2 always implies
> PTP_STRICT_FLAGS, the core now rejects every PTP_EXTTS_REQUEST2 for this
> driver with -EOPNOTSUPP, where before that commit the same requests
> succeeded.

Adding Aksh Garg and Sebastian Andrzej Siewior, whom I missed on the Cc list.
The full patch is at
https://lore.kernel.org/all/20261020003525.1237742-1-jjc@xxxxxxxxxx/