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pps: Move pcount assignment in pps_event()

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Move the pseq increment.  This makes it possible to reuse registers earlier.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/604
This commit is contained in:
Sebastian Huber 2023-02-27 14:49:09 -07:00 committed by Warner Losh
parent fd88f4e190
commit 0448501f2b
1 changed files with 4 additions and 4 deletions
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8
sys/kern/kern_tc.c
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@ -1842,25 +1842,25 @@ pps_event(struct pps_state *pps, int event)
#endif
}
*pcount = pps->capcount;
/*
* If the timecounter changed, we cannot compare the count values, so
* we have to drop the rest of the PPS-stuff until the next event.
*/
if (__predict_false(pps->ppstc != captc)) {
pps->ppstc = captc;
*pcount = pps->capcount;
pps->ppscount[2] = pps->capcount;
return;
}
(*pseq)++;
/* Convert the count to a timespec. */
tcount = pps->capcount - tcount;
tcount &= captc->tc_counter_mask;
bintime_addx(&bt, capth_scale * tcount);
bintime2timespec(&bt, &ts);
*pcount = pps->capcount;
(*pseq)++;
*tsp = ts;
if (foff) {