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pps: Convert to ktime_get_snapshot_id()

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ktime_get_snapshot() resolves to ktime_get_snapshot_id(CLOCK_REALTIME).

Make it obvious in the code and convert the readout to use the
snapshot::systime and monoraw fields instead of snapshot::real and raw,
which aregoing away.

Similar to the PPS generators, avoid the more expensive snapshot when
CONFIG_NTP_PPS is disabled.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Arthur Kiyanovski <akiyano@amazon.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260529195557.123410250@kernel.org
This commit is contained in:
Thomas Gleixner 2026-05-29 22:00:04 +02:00
parent fe1159fe49
commit d5becddf8a
1 changed files with 6 additions and 4 deletions
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10
include/linux/pps_kernel.h
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@ -99,12 +99,14 @@ static inline void timespec_to_pps_ktime(struct pps_ktime *kt,
static inline void pps_get_ts(struct pps_event_time *ts)
{
#ifdef CONFIG_NTP_PPS
struct system_time_snapshot snap;
ktime_get_snapshot(&snap);
ts->ts_real = ktime_to_timespec64(snap.real);
#ifdef CONFIG_NTP_PPS
ts->ts_raw = ktime_to_timespec64(snap.raw);
ktime_get_snapshot_id(CLOCK_REALTIME, &snap);
ts->ts_real = ktime_to_timespec64(snap.systime);
ts->ts_raw = ktime_to_timespec64(snap.monoraw);
#else
ktime_get_real_ts64(&ts->ts_real);
#endif
}