Why is tc_get_timecount() called two times in tc_init()?

[Sebastian Huber]

Hello,

since this commit

https://github.com/freebsd/freebsd/commit/307f787e5a7f

tc_get_timecount() is called two times in tc_init().

/*
  * Initialize a new timecounter and possibly use it.
  */
void
tc_init(struct timecounter *tc)
{
[...]
	if (tc->tc_quality == timecounter->tc_quality &&
	    tc->tc_frequency < timecounter->tc_frequency)
		return;
	(void)tc->tc_get_timecount(tc);
	(void)tc->tc_get_timecount(tc);
	timecounter = tc;
}

What is the reason for this procedure?

-- 
Sebastian Huber, embedded brains GmbH

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