From: Dave Martin <dave.martin@linaro.org>
Date: Wed, 9 Feb 2011 11:06:59 +0000 (+0100)
Subject: ARM: 6655/1: Correct WFE() in asm/spinlock.h for Thumb-2
X-Git-Tag: v2.6.39-rc1~463^2~1^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=917692f5f7ec63de3b093c825913d68e910db282;p=pandora-kernel.git

ARM: 6655/1: Correct WFE() in asm/spinlock.h for Thumb-2

The content for ALT_SMP() in the definition of WFE() expands to 6
bytes (IT cc ; WFEcc.W), which breaks the assumptions of the fixup
code, leading to lockups when the affected code gets run.

This patch works around the problem by explicitly using an
IT + WFEcc.N pair.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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