From 69d83be0371cfe4554e8653b1cee5e1e618fb0e8 Mon Sep 17 00:00:00 2001
From: "Justin T. Gibbs" <gibbs@FreeBSD.org>
Date: Sun, 2 Nov 1997 19:41:16 +0000
Subject: [PATCH] Correct the definition of CIRCLEQ_EMPTY.  It would give a
 false positive if the queue contained only one element.

Submitted by:	Greg Ansley <gja@ansley.com>
---
 sys/sys/queue.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/sys/queue.h b/sys/sys/queue.h
index 7aa6e094bfb..a72ff3d3c26 100644
--- a/sys/sys/queue.h
+++ b/sys/sys/queue.h
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)queue.h	8.5 (Berkeley) 8/20/94
- * $Id: queue.h,v 1.17 1997/08/25 20:21:54 phk Exp $
+ * $Id: queue.h,v 1.18 1997/09/21 22:09:20 gibbs Exp $
  */
 
 #ifndef _SYS_QUEUE_H_
@@ -389,7 +389,7 @@ struct {								\
 /*
  * Circular queue functions.
  */
-#define CIRCLEQ_EMPTY(head) ((head)->cqh_first == (head)->cqh_last)
+#define CIRCLEQ_EMPTY(head) ((head)->cqh_first == (void *)(head))
 
 #define CIRCLEQ_FIRST(head) ((head)->cqh_first)