clockintr: remove clockintr_expiration()

With the introduction of clockintr_advance_random(), this interface is
now unused.  Remove it.

Suggested by mpi@.

Thread: https://marc.info/?l=openbsd-tech&m=169392340028978&w=2

ok mpi@ mlarkin@

diff --git a/sys/kern/kern_clockintr.c b/sys/kern/kern_clockintr.c
index a2ee53b..b4e5901 100644 (file)
--- a/sys/kern/kern_clockintr.c
+++ b/sys/kern/kern_clockintr.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kern_clockintr.c,v 1.35 2023/09/05 22:29:28 cheloha Exp $ */
+/* $OpenBSD: kern_clockintr.c,v 1.36 2023/09/05 22:41:14 cheloha Exp $ */
 /*
  * Copyright (c) 2003 Dale Rahn <drahn@openbsd.org>
  * Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org>
@@ -44,7 +44,6 @@ uint32_t statclock_mask;              /* [I] set of allowed offsets */
 
 uint64_t clockintr_advance_random(struct clockintr *, uint64_t, uint32_t);
 void clockintr_cancel_locked(struct clockintr *);
-uint64_t clockintr_expiration(const struct clockintr *);
 void clockintr_hardclock(struct clockintr *, void *);
 void clockintr_schedule(struct clockintr *, uint64_t);
 void clockintr_schedule_locked(struct clockintr *, uint64_t);
@@ -421,21 +420,6 @@ clockintr_establish(struct clockintr_queue *cq,
        return cl;
 }
 
-uint64_t
-clockintr_expiration(const struct clockintr *cl)
-{
-       uint64_t expiration;
-       struct clockintr_queue *cq = cl->cl_queue;
-
-       if (cl == &cq->cq_shadow)
-               return cl->cl_expiration;
-
-       mtx_enter(&cq->cq_mtx);
-       expiration = cl->cl_expiration;
-       mtx_leave(&cq->cq_mtx);
-       return expiration;
-}
-
 void
 clockintr_schedule(struct clockintr *cl, uint64_t expiration)
 {