linux-kernel - Re: [PATCH 19/19] [INCOMPLETE] ARM: make return_address available for ARM

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Date:	Fri, 25 Jan 2013 12:08:23 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Dave Martin <dave.martin@...aro.org>
Cc:	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	sahara <keun-o.park@...driver.com>,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 19/19] [INCOMPLETE] ARM: make return_address available
 for ARM_UNWIND

On Fri, 2013-01-25 at 16:59 +0000, Dave Martin wrote:

> Cool.  Are you aware of return_address being used elsewhere?  Currently
> I'm not aware of anything else which uses it, and grep is not finding
> any calls outside ftrace.h that I can see.

softirq.c has a trace_preempt_off() use of CALLER_ADDR1.

kernel/sched/core.c has CALLER_ADDR1, 2 an 3.

-- Steve


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