From: Marc Zyngier <Marc.Zyngier@arm.com>
Date: Mon, 4 Nov 2013 20:14:58 +0000 (+0000)
Subject: arm64: fix access to preempt_count from assembly code
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~54^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=717321fcb58ed95169bf344ae47ac6098ba5dfbe;p=pandora-kernel.git

arm64: fix access to preempt_count from assembly code

preempt_count is defined as an int. Oddly enough, we access it
as a 64bit value. Things become interesting when running a BE
kernel, and looking at the current CPU number, which is stored
as an int next to preempt_count. Like in a per-cpu interrupt
handler, for example...

Using a 32bit access fixes the issue for good.

Cc: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---

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