From 6f88dd3240841fd2d49aafd337155beea62a8488 Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Tue, 23 Mar 2010 17:09:17 +0000
Subject: [PATCH] [XDK] Improve BYTES_TO_PAGES macro

svn path=/branches/header-work/; revision=46360
---
 include/xdk/mmfuncs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/xdk/mmfuncs.h b/include/xdk/mmfuncs.h
index c405bb29844..b714f97845a 100644
--- a/include/xdk/mmfuncs.h
+++ b/include/xdk/mmfuncs.h
@@ -55,7 +55,7 @@ $if (_WDMDDK_)
  *   IN ULONG Size)
  */
 #define BYTES_TO_PAGES(Size) \
-  (((Size) >> PAGE_SHIFT) + (((Size) & (PAGE_SIZE - 1)) != 0))
+  (((Size) + PAGE_SIZE - 1) >> PAGE_SHIFT)
 
 /* PVOID
  * PAGE_ALIGN(