On Fri, Mar 13, 2026 at 02:54:10PM +0100, Przemyslaw Korba wrote:
> Since upstream commit d9f3e9ecc456 ("net: ptp: introduce
> .supported_perout_flags to ptp_clock_info") and commit 7c571ac57d9d ("net:
> ptp: introduce .supported_extts_flags to ptp_clock_info"), kernel core now
> requires that the driver set the .supported_perout_flags and
> .supported_extts_flags fields in PTP clock info. Otherwise, the additional
> flags will be rejected by the kernel automatically.
>
> Set supported flags field so we can set extts pins.
>
> Fixes: d9f3e9ecc456 ("net: ptp: introduce .supported_perout_flags to
> ptp_clock_info")
> Signed-off-by: Przemyslaw Korba <[email protected]>
I don't think it is particularly important, but the AI generated review
points out that citing the following commit may be more appropriate,
as this patch deals with extts_flags rather than perout_flags.
7c571ac57d9d ("net: ptp: introduce .supported_extts_flags to ptp_clock_info")
Also, as this is for iwl-next I do wonder if there should be a fixes tag
at all. I do see that Paul asked for one in v1. But is this fixing a bug?
And if so, should it be targeted at iwl-net?
> ---
> v3:
> - remove unnecessary flag checks for newer kernels and update commit
> message
Thanks for the update.
> v2:
> - add fixes tag
> - remove old TODO comment
> v1:
> https://lore.kernel.org/intel-wired-lan/[email protected]/
FTR, the AI generated review also notes that the TODO covers both EXTTS and
PEROUT, while the patch only deals with the later. But I agree with Dawid's
review of v1. And that it is best to remove the TODO entirely.
>
> drivers/net/ethernet/intel/i40e/i40e_ptp.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
> b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
> index 7bcea7d9720f..e7c4f871beec 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
> @@ -598,7 +598,6 @@ static int i40e_ptp_feature_enable(struct ptp_clock_info
> *ptp,
> enum ptp_pin_function func;
> unsigned int chan;
>
> - /* TODO: Implement flags handling for EXTTS and PEROUT */
> switch (rq->type) {
> case PTP_CLK_REQ_EXTTS:
> func = PTP_PF_EXTTS;
> @@ -1340,7 +1339,9 @@ static int i40e_init_pin_config(struct i40e_pf *pf)
> pf->ptp_caps.n_ext_ts = 2;
> pf->ptp_caps.pps = 1;
> pf->ptp_caps.n_per_out = 2;
> -
> + pf->ptp_caps.supported_extts_flags = PTP_RISING_EDGE |
> + PTP_FALLING_EDGE |
> + PTP_STRICT_FLAGS;
> pf->ptp_caps.pin_config = kzalloc_objs(*pf->ptp_caps.pin_config,
> pf->ptp_caps.n_pins);
> if (!pf->ptp_caps.pin_config)
>
> base-commit: d5fbc991435eac7a1ead7cd2ddb5a743528718bb
> --
> 2.43.0
>
