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path: root/drivers/ptp/ptp_vclock.c
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Diffstat (limited to 'drivers/ptp/ptp_vclock.c')
-rw-r--r--drivers/ptp/ptp_vclock.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/ptp/ptp_vclock.c b/drivers/ptp/ptp_vclock.c
index 2fdeedd60e21..64c950456517 100644
--- a/drivers/ptp/ptp_vclock.c
+++ b/drivers/ptp/ptp_vclock.c
@@ -154,6 +154,11 @@ static long ptp_vclock_refresh(struct ptp_clock_info *ptp)
return PTP_VCLOCK_REFRESH_INTERVAL;
}
+static void ptp_vclock_set_subclass(struct ptp_clock *ptp)
+{
+ lockdep_set_subclass(&ptp->clock.rwsem, PTP_LOCK_VIRTUAL);
+}
+
static const struct ptp_clock_info ptp_vclock_info = {
.owner = THIS_MODULE,
.name = "ptp virtual clock",
@@ -213,6 +218,8 @@ struct ptp_vclock *ptp_vclock_register(struct ptp_clock *pclock)
return NULL;
}
+ ptp_vclock_set_subclass(vclock->clock);
+
timecounter_init(&vclock->tc, &vclock->cc, 0);
ptp_schedule_worker(vclock->clock, PTP_VCLOCK_REFRESH_INTERVAL);