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Commit 036876fa authored by Steven Rostedt (VMware)'s avatar Steven Rostedt (VMware)
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tracing: Have the historgram use the result of str_has_prefix() for len of prefix 



As str_has_prefix() returns the length on match, we can use that for the
updating of the string pointer instead of recalculating the prefix size.

Cc: Tom Zanussi  <zanussi@kernel.org>
Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent b6b27355

kernel/trace/trace_events_hist.c

+5 −4
Original line number Diff line number Diff line
@@ -4342,12 +4342,13 @@ static int parse_actions(struct hist_trigger_data *hist_data) 
	unsigned int i;

	int ret = 0;

	char *str;

	int len;



	for (i = 0; i < hist_data->attrs->n_actions; i++) {

		str = hist_data->attrs->action_str[i];



		if (str_has_prefix(str, "onmatch(")) {

			char *action_str = str + sizeof("onmatch(") - 1;

		if ((len = str_has_prefix(str, "onmatch("))) {

			char *action_str = str + len;



			data = onmatch_parse(tr, action_str);

			if (IS_ERR(data)) {
@@ -4355,8 +4356,8 @@ static int parse_actions(struct hist_trigger_data *hist_data) 
				break;

			}

			data->fn = action_trace;

		} else if (str_has_prefix(str, "onmax(")) {

			char *action_str = str + sizeof("onmax(") - 1;

		} else if ((len = str_has_prefix(str, "onmax("))) {

			char *action_str = str + len;



			data = onmax_parse(action_str);

			if (IS_ERR(data)) {