linux-kernel - [PATCH] x86: e820 max_arch

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Message-Id: <200806041321.30083.yhlu.kernel@gmail.com>
Date:	Wed, 4 Jun 2008 13:21:29 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: e820 max_arch_pfn typo fix for 64 bit


should use right shift

Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>

Index: linux-2.6/arch/x86/kernel/e820.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/e820.c
+++ linux-2.6/arch/x86/kernel/e820.c
@@ -771,7 +771,7 @@ u64 __init early_reserve_e820(u64 startt
 #  define MAX_ARCH_PFN		(1ULL<<(32-PAGE_SHIFT))
 # endif
 #else /* CONFIG_X86_32 */
-# define MAX_ARCH_PFN MAXMEM<<PAGE_SHIFT
+# define MAX_ARCH_PFN MAXMEM>>PAGE_SHIFT
 #endif
 
 /*
--
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