Re: [RFC PATCH v2 3/7] x86/kvm, ptp/kvm: Add clocksource ID, set system_counterval_t.cs_id

From: Peter Hilber
Date: Thu Jan 11 2024 - 06:33:40 EST


On 18.12.23 11:23, Andy Shevchenko wrote:
> On Fri, Dec 15, 2023 at 11:06:08PM +0100, Peter Hilber wrote:
>> Add a clocksource ID for the x86 kvmclock.
>>
>> Also, for ptp_kvm, set the recently added struct system_counterval_t member
>> cs_id to the clocksource ID (x86 kvmclock or Arm Generic Timer). In the
>> future, this will keep get_device_system_crosststamp() working, when it
>> will compare the clocksource id in struct system_counterval_t, rather than
>> the clocksource.
>>
>> For now, to avoid touching too many subsystems at once, extract the
>> clocksource ID from the clocksource. The clocksource dereference will be
>> removed in the following.
>
> ...
>
>> #include <linux/clocksource.h>
>> +#include <linux/clocksource_ids.h>
>
> It's the second file that includes both.
>
> I'm just wondering if it makes sense to always (?) include the latter into
> the former.
>

Actually, clocksource.h already includes clocksource_ids.h, always since
the latter was created. So I'll just omit the unnecessary clocksource_ids.h
includes in other files.

Thanks for the comment,

Peter