linux-kernel - Re: [PATCH 13/21] dynamic_debug: require 'a' flag to explicitly mark pending queries

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Date:	Tue, 12 Jul 2011 11:20:45 +0200
From:	Bart Van Assche <bvanassche@....org>
To:	Jim Cromie <jim.cromie@...il.com>
Cc:	jbaron@...hat.com, linux-kernel@...r.kernel.org, joe@...ches.com,
	gregkh@...e.de, gnb@...h.org
Subject: Re: [PATCH 13/21] dynamic_debug: require 'a' flag to explicitly mark
 pending queries

On Mon, Jul 11, 2011 at 9:46 AM, Jim Cromie <jim.cromie@...il.com> wrote:
> +static int queries_match(struct ddebug_query *q1, struct ddebug_query *q2)
> +{
> +       if (!q1->module ^ !q2->module ||
> +               !q1->filename ^ !q2->filename ||
> +               !q1->function ^ !q2->function ||
> +               !q1->format ^ !q2->format)
> +               return 0;  /* a match-spec set/unset state differs */
> +
> +       if (q1->last_lineno != q2->last_lineno ||
> +               q1->first_lineno != q2->first_lineno)
> +               return 0;
> +
> +       if ((q1->module && strcmp(q1->module, q2->module)) ||
> +               (q1->filename && strcmp(q1->filename, q2->filename)) ||
> +               (q1->function && strcmp(q1->function, q2->function)) ||
> +               (q1->format && strcmp(q1->format, q2->format)))
> +               return 0;
> +       return 1;
> +}

Is there a reason why the return type of this function is "int" and
not "bool" ? Also, in the Linux kernel you can use the symbolic
constants "true" and "false" instead of "1" and "0".

Bart.
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