linux-kernel - Re: [PATCH] ftrace: Add initialization check in trace

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Date:	Mon, 12 Aug 2013 09:07:58 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH] ftrace: Add initialization check in trace_printk for
 *puts paths

On Mon, 12 Aug 2013 11:34:05 +0200
Jiri Olsa <jolsa@...hat.com> wrote:

> Adding initialization check in trace_printk for *puts
> paths, plus unifying the check for all related cases.
> 
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Cc: Frederic Weisbecker <fweisbec@...il.com>
> Cc: Ingo Molnar <mingo@...hat.com>
> ---
>  kernel/trace/trace.c | 15 ++++++++++++---
>  1 file changed, 12 insertions(+), 3 deletions(-)
> 
> diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
> index 882ec1d..cb7cf96 100644
> --- a/kernel/trace/trace.c
> +++ b/kernel/trace/trace.c
> @@ -126,6 +126,9 @@ static char *default_bootup_tracer;
>  
>  static bool allocate_snapshot;
>  
> +#define TRACE_PRINTK_DENIED \


s/TRACE_PRINTK_DENIED/TRACE_PRINTK_DISABLED/

-- Steve

> +	unlikely(tracing_selftest_running || tracing_disabled)
> +
>  static int __init set_cmdline_ftrace(char *str)
>  {
>  	strlcpy(bootup_tracer_buf, str, MAX_TRACER_SIZE);
> 
--
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