> -Original Message-
> From: Miroslav Lichvar
> Sent: Tuesday, May 25, 2021 5:28 AM
> To: linuxptp-devel@lists.sourceforge.net
> Subject: [Linuxptp-devel] [PATCH 1/3] clock: Reset state when switching port
> with
> same best clock.
>
> When the best port is changed, but the ID of the best clock doesn't
> change (e.g. a passive port is activated on link failure), reset the
> current delay and other master/link-specific state to avoid the switch
> throwing the clock off.
>
Right. Since we are on a new port, we are going to have different
characteristics, even if the clock is still the same.
Makes sense.
Reviewed-by: Jacob Keller
> Signed-off-by: Miroslav Lichvar
> ---
> clock.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/clock.c b/clock.c
> index e545a9b..a073575 100644
> --- a/clock.c
> +++ b/clock.c
> @@ -1947,7 +1947,7 @@ static void handle_state_decision_event(struct clock
> *c)
> cid2str(&best_id));
> }
>
> - if (!cid_eq(&best_id, &c->best_id)) {
> + if (!cid_eq(&best_id, &c->best_id) || best != c->best) {
> clock_freq_est_reset(c);
> tsproc_reset(c->tsproc, 1);
> if (!tmv_is_zero(c->initial_delay))
> --
> 2.26.3
>
>
>
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