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authorThomas Gleixner <tglx@linutronix.de>2025-07-01 15:27:00 +0200
committerPaolo Abeni <pabeni@redhat.com>2025-07-03 15:36:04 +0200
commit4c09a4cebd0320c5381afad3fb6f997f20082a3b (patch)
tree28c2a5d232fedf65efc35515e4fbcfb1138e6d67
parent4f38a6db7bcfc4502c08f4095d2abf686828cff9 (diff)
ptp: Use ktime_get_clock_ts64() for timestamping
The inlined ptp_read_system_[pre|post]ts() switch cases expand to a copious amount of text in drivers, e.g. ~500 bytes in e1000e. Adding auxiliary clock support to the inlines would increase it further. Replace the inline switch case with a call to ktime_get_clock_ts64(), which reduces the code size in drivers and allows to access auxiliary clocks once they are enabled in the IOCTL parameter filter. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Acked-by: John Stultz <jstultz@google.com> Link: https://patch.msgid.link/20250701132628.426168092@linutronix.de Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-rw-r--r--include/linux/ptp_clock_kernel.h34
1 files changed, 4 insertions, 30 deletions
diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h
index eced7e9bf69a..3d089bd4d5e9 100644
--- a/include/linux/ptp_clock_kernel.h
+++ b/include/linux/ptp_clock_kernel.h
@@ -477,40 +477,14 @@ static inline ktime_t ptp_convert_timestamp(const ktime_t *hwtstamp,
static inline void ptp_read_system_prets(struct ptp_system_timestamp *sts)
{
- if (sts) {
- switch (sts->clockid) {
- case CLOCK_REALTIME:
- ktime_get_real_ts64(&sts->pre_ts);
- break;
- case CLOCK_MONOTONIC:
- ktime_get_ts64(&sts->pre_ts);
- break;
- case CLOCK_MONOTONIC_RAW:
- ktime_get_raw_ts64(&sts->pre_ts);
- break;
- default:
- break;
- }
- }
+ if (sts)
+ ktime_get_clock_ts64(sts->clockid, &sts->pre_ts);
}
static inline void ptp_read_system_postts(struct ptp_system_timestamp *sts)
{
- if (sts) {
- switch (sts->clockid) {
- case CLOCK_REALTIME:
- ktime_get_real_ts64(&sts->post_ts);
- break;
- case CLOCK_MONOTONIC:
- ktime_get_ts64(&sts->post_ts);
- break;
- case CLOCK_MONOTONIC_RAW:
- ktime_get_raw_ts64(&sts->post_ts);
- break;
- default:
- break;
- }
- }
+ if (sts)
+ ktime_get_clock_ts64(sts->clockid, &sts->post_ts);
}
#endif