On Fri, May 29, 2026 at 10:00:52PM +0200, Thomas Gleixner wrote:
> From: Thomas Gleixner <[email protected]>
> 
> The PTP core indicates in system_device_crosststamp::clock_id the clock ID
> for which the system time stamp should be taken. That allows to utilize
> hardware timestamps with e.g. AUX clocks.
> 
> Use ktime_get_snapshot_id() and hand the provided clock ID in.
> 
> No functional change.
> 
> Signed-off-by: Thomas Gleixner <[email protected]>
> Tested-by: Arthur Kiyanovski <[email protected]>
> Reviewed-by: David Woodhouse <[email protected]>
> Reviewed-by: Jacob Keller <[email protected]>

Acked-by: Peter Hilber <[email protected]>

> ---
>  drivers/virtio/virtio_rtc_ptp.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> --- a/drivers/virtio/virtio_rtc_ptp.c
> +++ b/drivers/virtio/virtio_rtc_ptp.c
> @@ -139,7 +139,7 @@ static int viortc_ptp_getcrosststamp(str
>       if (ret)
>               return ret;
>  
> -     ktime_get_snapshot(&history_begin);
> +     ktime_get_snapshot_id(xtstamp->clock_id, &history_begin);
>       if (history_begin.cs_id != cs_id)
>               return -EOPNOTSUPP;
>  
> 

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