[rtems commit] timecounter: Merge FreeBSD change r286429
sebh at rtems.org
Thu Oct 12 05:07:02 UTC 2017
Author: Ian Lepore <ian at FreeBSD.org>
Date: Fri Aug 7 23:31:31 2015 +0000
timecounter: Merge FreeBSD change r286429
Only process the PPS event types currently enabled in pps_params.mode.
This makes the PPS API behave correctly, but isn't ideal -- we still end
up capturing PPS data for non-enabled edges, we just don't process the
data into an event that becomes visible outside of kern_tc. That's because
the event type isn't passed to pps_capture(), so it can't do the filtering.
Any solution for capture filtering is going to require touching every driver.
cpukit/score/src/kern_tc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/kern_tc.c
index a789107..bb8a3f1 100644
@@ -1902,6 +1902,9 @@ pps_event(struct pps_state *pps, int event)
KASSERT(pps != NULL, ("NULL pps pointer in pps_event"));
+ /* Nothing to do if not currently set to capture this event type. */
+ if ((event & pps->ppsparam.mode) == 0)
/* If the timecounter was wound up underneath us, bail out. */
if (pps->capgen == 0 || pps->capgen !=
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