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