From 3964994bb5ba85a3d8b54ae618f7be1cecce916d Mon Sep 17 00:00:00 2001
From: Eric Sesterhenn / Snakebyte <snakebyte@gmx.de>
Date: Mon, 9 Apr 2007 16:15:05 +0200
Subject: [PATCH] KVM: Fix overflow bug in overflow detection code

The expression

   sp - 6 < sp

where sp is a u16 is undefined in C since 'sp - 6' is promoted to int,
and signed overflow is undefined in C.  gcc 4.2 actually warns about it.
Replace with a simpler test.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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