linux-kernel - [PATCH 12/26] perf tools: Separate sort fields parsing into setup_sort

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Date:	Mon, 18 Jan 2016 10:24:10 +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 12/26] perf tools: Separate sort fields parsing into setup_sort_list function

Separating sort fields parsing into setup_sort_list
function, so it's separated from sort_order string
setup and could be reused later in following patches.

Link: http://lkml.kernel.org/n/tip-9h0ujdlvbx73llz3c7vo8j75@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 a7eed4485afc..844c97f51198 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2238,6 +2238,26 @@ static int sort_dimension__add(const char *tok,
 	return -ESRCH;
 }
 
+static int setup_sort_list(char *str, struct perf_evlist *evlist)
+{
+	char *tmp, *tok;
+	int ret = 0;
+
+	for (tok = strtok_r(str, ", ", &tmp);
+			tok; tok = strtok_r(NULL, ", ", &tmp)) {
+		ret = sort_dimension__add(tok, evlist);
+		if (ret == -EINVAL) {
+			error("Invalid --sort key: `%s'", tok);
+			break;
+		} else if (ret == -ESRCH) {
+			error("Unknown --sort key: `%s'", tok);
+			break;
+		}
+	}
+
+	return ret;
+}
+
 static const char *get_default_sort_order(struct perf_evlist *evlist)
 {
 	const char *default_sort_orders[] = {
@@ -2332,7 +2352,7 @@ static char *setup_overhead(char *keys)
 
 static int __setup_sorting(struct perf_evlist *evlist)
 {
-	char *tmp, *tok, *str;
+	char *str;
 	const char *sort_keys;
 	int ret = 0;
 
@@ -2370,17 +2390,7 @@ static int __setup_sorting(struct perf_evlist *evlist)
 		}
 	}
 
-	for (tok = strtok_r(str, ", ", &tmp);
-			tok; tok = strtok_r(NULL, ", ", &tmp)) {
-		ret = sort_dimension__add(tok, evlist);
-		if (ret == -EINVAL) {
-			error("Invalid --sort key: `%s'", tok);
-			break;
-		} else if (ret == -ESRCH) {
-			error("Unknown --sort key: `%s'", tok);
-			break;
-		}
-	}
+	ret = setup_sort_list(str, evlist);
 
 	free(str);
 	return ret;
-- 
2.4.3