diff options
Diffstat (limited to 'drivers/ptp/ptp_vclock.c')
| -rw-r--r-- | drivers/ptp/ptp_vclock.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/ptp/ptp_vclock.c b/drivers/ptp/ptp_vclock.c index 7febfdcbde8b..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", @@ -164,7 +169,7 @@ static const struct ptp_clock_info ptp_vclock_info = { .do_aux_work = ptp_vclock_refresh, }; -static u64 ptp_vclock_read(const struct cyclecounter *cc) +static u64 ptp_vclock_read(struct cyclecounter *cc) { struct ptp_vclock *vclock = cc_to_vclock(cc); struct ptp_clock *ptp = vclock->pclock; @@ -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); |