From 51468ea91efad9c7e6dbae43cd8bdc423ec61709 Mon Sep 17 00:00:00 2001
From: Jon Medhurst <tixy@yxit.co.uk>
Date: Thu, 7 Apr 2011 13:25:15 +0100
Subject: [PATCH] ARM: kprobes: Reject probing MRS instructions which read SPSR

We need to reject probing of instructions which read SPSR because
we can't handle this as the value in SPSR is lost when the exception
handler for the probe breakpoint first runs.

This patch also fixes the bitmask for MRS instructions decoding to
include checking bits 5-7.

Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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