From ef4c53687e0adf5409896c4fa688b15f8d4dc0c0 Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Fri, 19 Aug 2011 18:00:08 +0100
Subject: [PATCH] ARM: 7031/1: entry: Fix Thumb-2 undef handling for multi-CPU
 kernels

When v6 and >=v7 boards are supported in the same kernel, the
__und_usr code currently makes a build-time assumption that Thumb-2
instructions occurring in userspace don't need to be supported.
Strictly speaking this is incorrect.

This patch fixes the above case by doing a run-time check on the
CPU architecture in these cases.  This only affects kernels which
support v6 and >=v7 CPUs together: plain v6 and plain v7 kernels
are unaffected.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Reviewed-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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