Author: cperciva
Date: Mon Jan 16 02:38:45 2012
New Revision: 230183
URL: http://svn.freebsd.org/changeset/base/230183
Log:
Make XENHVM work on i386. The __ffs() function counts bits starting from
zero, unlike ffs(3), which starts counting from 1.
Modified:
head/sys/dev/xen/xenpci/evtchn.c
Modified: head/sys/dev/xen/xenpci/evtchn.c
==============================================================================
--- head/sys/dev/xen/xenpci/evtchn.c Mon Jan 16 01:14:07 2012
(r230182)
+++ head/sys/dev/xen/xenpci/evtchn.c Mon Jan 16 02:38:45 2012
(r230183)
@@ -52,7 +52,7 @@ __FBSDID("$FreeBSD$");
#include <dev/xen/xenpci/xenpcivar.h>
#if defined(__i386__)
-#define __ffs(word) ffs(word)
+#define __ffs(word) (ffs(word) - 1)
#elif defined(__amd64__)
static inline unsigned long __ffs(unsigned long word)
{
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