linux-kernel - [PATCH] [14/35] i386: mtrr range check correction

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Message-Id: <20070428175238.C4334151CA@wotan.suse.de>
Date:	Sat, 28 Apr 2007 19:52:38 +0200 (CEST)
From:	Andi Kleen <ak@...e.de>
To:	"Jan Beulich" <jbeulich@...ell.com>, Andi Kleen <ak@...e.de>,
	linux-kernel@...r.kernel.org, patches@...-64.org
Subject: [PATCH] [14/35] i386: mtrr range check correction


From: "Jan Beulich" <jbeulich@...ell.com>

Whether a region is below 1Mb is determined by its start rather than
its end.

This hunk got erroneously dropped from a previous patch.

Signed-off-by: Jan Beulich <jbeulich@...ell.com>
Signed-off-by: Andi Kleen <ak@...e.de>
Cc: Andi Kleen <ak@...e.de>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---

 arch/i386/kernel/cpu/mtrr/generic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/arch/i386/kernel/cpu/mtrr/generic.c
===================================================================
--- linux.orig/arch/i386/kernel/cpu/mtrr/generic.c
+++ linux/arch/i386/kernel/cpu/mtrr/generic.c
@@ -428,7 +428,7 @@ int generic_validate_add_page(unsigned l
 		}
 	}
 
-	if (base + size < 0x100) {
+	if (base < 0x100) {
 		printk(KERN_WARNING "mtrr: cannot set region below 1 MiB (0x%lx000,0x%lx000)\n",
 		       base, size);
 		return -EINVAL;
-
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