Re: [PATCH v8 10/22] tracing: Add hist trigger onchange() handler

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Hi Tom,

Just a nitpick.

On Mon, 10 Dec 2018 18:01:24 -0600
Tom Zanussi <zanussi@xxxxxxxxxx> wrote:

>  enum action_id {
> @@ -1961,7 +1962,8 @@ static int parse_action(char *str, struct hist_trigger_attrs *attrs)
>  		return ret;
>  
>  	if ((strncmp(str, "onmatch(", strlen("onmatch(")) == 0) ||
> -	    (strncmp(str, "onmax(", strlen("onmax(")) == 0)) {
> +	    (strncmp(str, "onmax(", strlen("onmax(")) == 0) ||
> +	    (strncmp(str, "onchange(", strlen("onchange(")) == 0)) {

You can use sizeof() instead of strlen() for static string.

[...]
> @@ -4740,6 +4767,15 @@ static int parse_actions(struct hist_trigger_data *hist_data)
>  				ret = PTR_ERR(data);
>  				break;
>  			}
> +		} else if (strncmp(str, "onchange(", strlen("onchange(")) == 0) {
> +			char *action_str = str + strlen("onchange(");

Ditto.

Thank you,


-- 
Masami Hiramatsu <mhiramat@xxxxxxxxxx>



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