linux-kernel - [tip:perf/core] perf top: Fix top.call-graph config option reading

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Date:   Mon, 19 Mar 2018 23:28:59 -0700
From:   tip-bot for Yisheng Xie <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     peterz@...radead.org, hpa@...or.com, wangnan0@...wei.com,
        xieyisheng1@...wei.com, acme@...hat.com, tglx@...utronix.de,
        linux-kernel@...r.kernel.org, mingo@...nel.org, jolsa@...hat.com,
        alexander.shishkin@...ux.intel.com, namhyung@...nel.org
Subject: [tip:perf/core] perf top: Fix top.call-graph config option reading

Commit-ID:  a3a4a3b37c9b911af4c375b2475cea0fd2b84d38
Gitweb:     https://git.kernel.org/tip/a3a4a3b37c9b911af4c375b2475cea0fd2b84d38
Author:     Yisheng Xie <xieyisheng1@...wei.com>
AuthorDate: Mon, 12 Mar 2018 19:25:56 +0800
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 16 Mar 2018 13:56:04 -0300

perf top: Fix top.call-graph config option reading

When trying to add the "call-graph" variable for top into the
.perfconfig file, like:

      [top]
            call-graph = fp

I that perf_top_config() do not parse this variable.

Fix it by calling perf_default_config() when the top.call-graph variable
is set.

Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Wang Nan <wangnan0@...wei.com>
Fixes: b8cbb349061e ("perf config: Bring perf_default_config to the very beginning at main()")
Link: http://lkml.kernel.org/r/1520853957-36106-1-git-send-email-xieyisheng1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-top.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 0a26b56afcc5..113c298ed38b 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1223,8 +1223,10 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 
 static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused)
 {
-	if (!strcmp(var, "top.call-graph"))
-		var = "call-graph.record-mode"; /* fall-through */
+	if (!strcmp(var, "top.call-graph")) {
+		var = "call-graph.record-mode";
+		return perf_default_config(var, value, cb);
+	}
 	if (!strcmp(var, "top.children")) {
 		symbol_conf.cumulate_callchain = perf_config_bool(var, value);
 		return 0;