From: Catalin Marinas <catalin.marinas@arm.com>
Date: Fri, 19 Jun 2009 15:43:08 +0000 (+0100)
Subject: [ARM] 5559/1: Limit the stack unwinding caused by a kthread exit
X-Git-Tag: v2.6.31-rc1~54^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=feb97c3644a560ffdf9a17c65b1df807b5b4432f;p=pandora-kernel.git

[ARM] 5559/1: Limit the stack unwinding caused by a kthread exit

When a kthread function returns, it branches to do_exit(). However, the
unwinding information isn't valid anymore and any stack trace caused by
do_exit() may be incorrect. This patch adds a kernel_thread_exit()
function and annotated with '.cantunwind' so that the unwinder stops
when reaching it.

Tested-by: Tony Lindgren <tony@atomide.com>

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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