Subject: Re: [PATCH v3 3/4] Add support for driver cross-timestamp to PTP_SYS_OFFSET ioctl

From: Richard Cochran <[email-masked]>
Date: Tue, 25 Aug 2015 09:31:11 +0200

On Mon, Aug 24, 2015 at 08:16:51PM +0000, Hall, Christopher S wrote:
> 
> This means: remove code changes from the PTP_SYS_OFFSET ioctl and call getsynctime64() from a new ioctl PTP_SYS_OFFSET_PRECISE.  Right?

Yes.
 
> And use the same type (struct ptp_sys_offset) for the new ioctl?  Or should a new simplified struct be used? Such as:
> 
> struct precise_ptp_sys_offset {
> 	struct ptp_clock_time device;
> 	struct ptp_clock_time system;
> };

I don't have a strong preference either way.  I would not mind reusing
the existing struct.

> Does it make sense to keep the "cross-timestamp" capabilities flag as-is?

Yes, indeed.

Thanks,
Richard