linux-kernel - [PATCH 13/26] perf tools: Separate output fields parsing into setup_output

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Message-Id: <1453109064-1026-14-git-send-email-jolsa@kernel.org>
Date:	Mon, 18 Jan 2016 10:24:11 +0100
From:	Jiri Olsa <jolsa@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [PATCH 13/26] perf tools: Separate output fields parsing into setup_output_list function

Separating output fields parsing into setup_output_list
function, so it's separated from field_order  string
setup and could be reused later in following patches.

Link: http://lkml.kernel.org/n/tip-4f4bt1un7gyfbyat7lah65dc@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/util/sort.c | 34 ++++++++++++++++++++++------------
 1 file changed, 22 insertions(+), 12 deletions(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 844c97f51198..3461198217fc 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2532,6 +2532,26 @@ static int output_field_add(char *tok)
 	return -ESRCH;
 }
 
+static int setup_output_list(char *str)
+{
+	char *tmp, *tok;
+	int ret = 0;
+
+	for (tok = strtok_r(str, ", ", &tmp);
+			tok; tok = strtok_r(NULL, ", ", &tmp)) {
+		ret = output_field_add(tok);
+		if (ret == -EINVAL) {
+			error("Invalid --fields key: `%s'", tok);
+			break;
+		} else if (ret == -ESRCH) {
+			error("Unknown --fields key: `%s'", tok);
+			break;
+		}
+	}
+
+	return ret;
+}
+
 static void reset_dimensions(void)
 {
 	unsigned int i;
@@ -2556,7 +2576,7 @@ bool is_strict_order(const char *order)
 
 static int __setup_output_field(void)
 {
-	char *tmp, *tok, *str, *strp;
+	char *str, *strp;
 	int ret = -EINVAL;
 
 	if (field_order == NULL)
@@ -2576,17 +2596,7 @@ static int __setup_output_field(void)
 		goto out;
 	}
 
-	for (tok = strtok_r(strp, ", ", &tmp);
-			tok; tok = strtok_r(NULL, ", ", &tmp)) {
-		ret = output_field_add(tok);
-		if (ret == -EINVAL) {
-			error("Invalid --fields key: `%s'", tok);
-			break;
-		} else if (ret == -ESRCH) {
-			error("Unknown --fields key: `%s'", tok);
-			break;
-		}
-	}
+	ret = setup_output_list(strp);
 
 out:
 	free(str);
-- 
2.4.3