linux-kernel - Re: [RFC/PATCH 2/8] kernel/trace/trace_events

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Message-ID: <20150608114948.1b37a6a8@gandalf.local.home>
Date:	Mon, 8 Jun 2015 11:49:48 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [RFC/PATCH 2/8] kernel/trace/trace_events_filter.c: Use
 strreplace

On Thu,  4 Jun 2015 11:37:09 +0200
Rasmus Villemoes <linux@...musvillemoes.dk> wrote:

> There's no point in starting over every time we see a ','...
> 
> Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
> ---
>  kernel/trace/trace_events_filter.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
> index ced69da0ff55..a987601d7b43 100644
> --- a/kernel/trace/trace_events_filter.c
> +++ b/kernel/trace/trace_events_filter.c
> @@ -2075,7 +2075,7 @@ struct function_filter_data {
>  static char **
>  ftrace_function_filter_re(char *buf, int len, int *count)
>  {
> -	char *str, *sep, **re;
> +	char *str, **re;
>  
>  	str = kstrndup(buf, len, GFP_KERNEL);
>  	if (!str)
> @@ -2085,8 +2085,7 @@ ftrace_function_filter_re(char *buf, int len, int *count)
>  	 * The argv_split function takes white space
>  	 * as a separator, so convert ',' into spaces.
>  	 */
> -	while ((sep = strchr(str, ',')))
> -		*sep = ' ';
> +	strreplace(str, ',', ' ');

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

-- Steve

>  
>  	re = argv_split(GFP_KERNEL, str, count);
>  	kfree(str);

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