On Tue, Jun 15, 2021 at 05:45:09PM +0800, Yangbo Lu wrote:
> diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
> index 3f388d63904c..6949afc9d733 100644
> --- a/drivers/ptp/ptp_private.h
> +++ b/drivers/ptp/ptp_private.h
> @@ -46,6 +46,9 @@ struct ptp_clock {
> const struct attribute_group *pin_attr_groups[2];
> struct kthread_worker *kworker;
> struct kthread_delayed_work aux_work;
> + u8 n_vclocks;
Hm, type is u8, but ...
> + struct mutex n_vclocks_mux; /* protect concurrent n_vclocks access */
> + bool vclock_flag;
> };
>
> #define info_to_vclock(d) container_of((d), struct ptp_vclock, info)
> diff --git a/include/uapi/linux/ptp_clock.h b/include/uapi/linux/ptp_clock.h
> index 1d108d597f66..4b933dc1b81b 100644
> --- a/include/uapi/linux/ptp_clock.h
> +++ b/include/uapi/linux/ptp_clock.h
> @@ -69,6 +69,11 @@
> */
> #define PTP_PEROUT_V1_VALID_FLAGS (0)
>
> +/*
> + * Max number of PTP virtual clocks per PTP physical clock
> + */
> +#define PTP_MAX_VCLOCKS 20
Only 20 clocks are allowed? Why?
Thanks,
Richard
