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| author | Thomas Gleixner <tglx@kernel.org> | 2026-05-29 22:01:25 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@kernel.org> | 2026-06-04 11:04:18 +0200 |
| commit | a6d799608e6a61b48908bff955200d03c34c90ca (patch) | |
| tree | cd0fb14f272e62734ac8c4b4882c2fb565178d26 /include/linux | |
| parent | 9aebde8af6fe247d92816c197badf7e236c8f037 (diff) | |
| download | lwn-a6d799608e6a61b48908bff955200d03c34c90ca.tar.gz lwn-a6d799608e6a61b48908bff955200d03c34c90ca.zip | |
ptp: Switch to ktime_get_snapshot_id() for pre/post timestamps
To prepare for a new PTP IOCTL, which exposes the raw counter value along
with the requested system time snapshot, switch the pre/post time stamp
sampling over to use ktime_get_snapshot_id() and fix up all usage sites.
No functional change intended.
The ptp_vmclock conversion was simplified by David Woodhouse.
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: David Woodhouse <dwmw@amazon.co.uk>
Tested-by: Arthur Kiyanovski <akiyano@amazon.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20260529195558.149589566@kernel.org
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ptp_clock_kernel.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h index 884364596dd3..36a27a910595 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -12,6 +12,7 @@ #include <linux/pps_kernel.h> #include <linux/ptp_clock.h> #include <linux/timecounter.h> +#include <linux/timekeeping.h> #include <linux/skbuff.h> #define PTP_CLOCK_NAME_LEN 32 @@ -45,13 +46,13 @@ struct system_device_crosststamp; /** * struct ptp_system_timestamp - system time corresponding to a PHC timestamp - * @pre_ts: system timestamp before capturing PHC - * @post_ts: system timestamp after capturing PHC - * @clockid: clock-base used for capturing the system timestamps + * @pre_sts: system time snapshot before capturing PHC + * @post_sts: system time snapshot after capturing PHC + * @clockid: clock-base used for capturing the system timestamps */ struct ptp_system_timestamp { - struct timespec64 pre_ts; - struct timespec64 post_ts; + struct system_time_snapshot pre_sts; + struct system_time_snapshot post_sts; clockid_t clockid; }; @@ -510,13 +511,13 @@ 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) - ktime_get_clock_ts64(sts->clockid, &sts->pre_ts); + ktime_get_snapshot_id(sts->clockid, &sts->pre_sts); } static inline void ptp_read_system_postts(struct ptp_system_timestamp *sts) { if (sts) - ktime_get_clock_ts64(sts->clockid, &sts->post_ts); + ktime_get_snapshot_id(sts->clockid, &sts->post_sts); } #endif |