From: Jan Beulich <jbeulich@novell.com>
Date: Wed, 2 May 2007 17:27:05 +0000 (+0200)
Subject: [PATCH] i386: mtrr range check correction
X-Git-Tag: upstream/snapshot3+hdmi~34849^2~216
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9215da33209b861b01c51382254b178a3fe92a30;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

[PATCH] i386: mtrr range check correction

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@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c
index f77fc53..68b3837 100644
--- a/arch/i386/kernel/cpu/mtrr/generic.c
+++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -428,7 +428,7 @@ int generic_validate_add_page(unsigned long base, unsigned long size, unsigned i
 		}
 	}
 
-	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;