svn commit: r333856 - head/sys/kern

[Matt Macy]

Author: mmacy
Date: Sat May 19 05:06:18 2018
New Revision: 333856
URL: https://svnweb.freebsd.org/changeset/base/333856

Log:
  kevent: annotate unused stack local

Modified:
  head/sys/kern/kern_event.c

Modified: head/sys/kern/kern_event.c
==============================================================================
--- head/sys/kern/kern_event.c	Sat May 19 05:04:38 2018	(r333855)
+++ head/sys/kern/kern_event.c	Sat May 19 05:06:18 2018	(r333856)
@@ -751,14 +751,12 @@ static void
 filt_timerdetach(struct knote *kn)
 {
 	struct kq_timer_cb_data *kc;
-#ifdef INVARIANTS
-	unsigned int old;
-#endif
+	unsigned int old __unused;
 
 	kc = kn->kn_ptr.p_v;
 	callout_drain(&kc->c);
 	free(kc, M_KQUEUE);
-	DBGSET(old, atomic_fetchadd_int(&kq_ncallouts, -1));
+	old = atomic_fetchadd_int(&kq_ncallouts, -1);
 	KASSERT(old > 0, ("Number of callouts cannot become negative"));
 	kn->kn_status |= KN_DETACHED;	/* knlist_remove sets it */
 }