linux-kernel - Re: [PATCH 4/5 v2] tracing/filters: Provide basic regex support

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Message-ID: <20090925081345.GA9236@centrinvest.ru>
Date:	Fri, 25 Sep 2009 12:13:45 +0400
From:	"Andrey Panin" <pazke@...trinvest.ru>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Tom Zanussi <tzanussi@...il.com>,
	Li Zefan <lizf@...fujitsu.com>
Subject: Re: [PATCH 4/5 v2] tracing/filters: Provide basic regex support

On 267, 09 24, 2009 at 09:49:34PM +0200, Frederic Weisbecker wrote:
> This patch provides basic support for regular expressions in filters.

> +/* Basic regex callbacks */
> +static int regex_match_full(char *str, struct regex *r, int len)
> +{
> +	if (strncmp(str, r->pattern, len) == 0)
> +		return 1;
> +	return 0;
> +}
> +
> +static int regex_match_front(char *str, struct regex *r, int len)
> +{
> +	if (strncmp(str, r->pattern, len) == 0)
> +		return 1;
> +	return 0;
> +}

These two functions are identical, what's the reason to keep them separate ?
And why not simply return strncmp(str, r->pattern, len) == 0 ?
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