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Date: Wed, 22 Aug 2012 10:42:40 -0400 (EDT)
From: Nicolas Pitre <nicolas.pitre@linaro.org>
To: Arnd Bergmann <arnd@arndb.de>
cc: Russell King <rmk+kernel@arm.linux.org.uk>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Jon Medhurst <tixy@yxit.co.uk>, Leif Lindholm <leif.lindholm@arm.com>
Subject: Re: [PATCH 4/4] ARM: kprobes: make more tests conditional
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On Wed, 22 Aug 2012, Arnd Bergmann wrote:

> The mls instruction is not available in ARMv6K or below, so we
> should make the test conditional on at least ARMv7. ldrex/strex
> are available in ARMv6K or ARMv7, which we can test by checking
> the CONFIG_CPU_32v6K symbol. Just testing for ARMv6 is not enough.

The ldrex/strex instructions are available on ARMv6.  It's only the d 
variants (strexd/ldrexd) which are only available from ARMv6k.


Nicolas