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Message-ID: <20160617122606.417cf5a0@gandalf.local.home>
Date:	Fri, 17 Jun 2016 12:26:06 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Chunyan Zhang <zhang.chunyan@...aro.org>
Cc:	mathieu.poirier@...aro.org, alexander.shishkin@...ux.intel.com,
	mingo@...hat.com, mike.leach@....com, tor@...com,
	maxime.coquelin@...com, philippe.langlais@...com,
	nicolas.guion@...com, zhang.lyra@...il.com,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC PATCH 4/4] stm: Mark the functions of writing buffer with
 notrace

On Wed,  1 Jun 2016 19:18:59 +0800
Chunyan Zhang <zhang.chunyan@...aro.org> wrote:

> If CONFIG_STM_FTRACE is selected, Function trace data would be
> writen to STM buffer, all  functions that related to writing data
> packets to STM buffer should be marked 'notrace' to avoid being
> traced by Ftrace, otherwise the program would stall into an endless loop.
> 
> Signed-off-by: Chunyan Zhang <zhang.chunyan@...aro.org>
> ---
>  drivers/hwtracing/coresight/coresight-stm.c |  2 +-
>  drivers/hwtracing/intel_th/sth.c            | 11 +++++++----
>  drivers/hwtracing/stm/core.c                |  7 ++++---
>  drivers/hwtracing/stm/dummy_stm.c           |  2 +-
>  include/linux/stm.h                         |  4 ++--
>  5 files changed, 15 insertions(+), 11 deletions(-)

Acked-by: Steven Rostedt <rostedt@...dmis.org>

-- Steve

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