kref_sub() interface was removed from linux and is unused

1 files changed, 1 insertions, 8 deletions

diff --git a/sys/dev/pci/drm/include/linux/kref.h b/sys/dev/pci/drm/include/linux/kref.h
index 4d16577e749..5f5ca9f47ba 100644
--- a/sys/dev/pci/drm/include/linux/kref.h
+++ b/sys/dev/pci/drm/include/linux/kref.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kref.h,v 1.2 2020/06/08 04:48:14 jsg Exp $	*/
+/*	$OpenBSD: kref.h,v 1.3 2020/06/17 02:06:05 jsg Exp $	*/
 /*
  * Copyright (c) 2015 Mark Kettenis
  *
@@ -68,13 +68,6 @@ kref_put(struct kref *ref, void (*release)(struct kref *ref))
 	return 0;
 }
 
-static inline void
-kref_sub(struct kref *ref, unsigned int v, void (*release)(struct kref *ref))
-{
-	if (atomic_sub_int_nv(&ref->refcount, v) == 0)
-		release(ref);
-}
-
 static inline int
 kref_put_mutex(struct kref *kref, void (*release)(struct kref *kref),
     struct rwlock *lock)