linux-kernel - Re: [RFC][PATCH v2 6/7] trace: constify filter_parse_regex(), match_records(), ftrace_match() and ftrace_match

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Date:	Fri, 6 Feb 2015 13:56:39 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH v2 6/7] trace: constify filter_parse_regex(),
 match_records(), ftrace_match() and ftrace_match_record()

On Fri,  6 Feb 2015 04:00:14 +0000
Al Viro <viro@...IV.linux.org.uk> wrote:

> +				   const char **search, int *not)
>  {
>  	int type = MATCH_FULL;
>  	int i;
> @@ -345,12 +346,11 @@ enum regex_type filter_parse_regex(char *buff, int *len, char **search, int *not
>  					type = MATCH_MIDDLE_ONLY;
>  				else
>  					type = MATCH_FRONT_ONLY;
> -				buff[i] = 0;
>  				break;
>  			}
>  		}
>  	}
> -	*len = strlen(*search);
> +	*len = buff + i - *search;

This change belongs in the previous patch.

-- Steve

>  
>  	return type;
>  }
> @@ -358,7 +358,7 @@ enum regex_type filter_parse_regex(char *buff, int *len, char **search, int *not
>  static void filter_build_regex(struct filter_pred *pred)
>  {
>  	struct regex *r = &pred->regex;
> -	char *search;
> +	const char *search;
>  	enum regex_type type = MATCH_FULL;
>  	int not = 0;
>  

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