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

Sebastian Huber sebastian.huber at embedded-brains.de
Tue Oct 1 11:11:23 UTC 2019


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

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber at embedded-brains.de
PGP     : Public key available on request.

Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.


More information about the freebsd-hackers mailing list