linux-kernel - [PATCH 6/8] perf annotate: Prefer cmdline option over default config

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Date:   Thu, 13 Feb 2020 12:13:04 +0530
From:   Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
To:     acme@...nel.org, jolsa@...hat.com
Cc:     xieyisheng1@...wei.com, alexey.budankov@...ux.intel.com,
        treeze.taeung@...il.com, adrian.hunter@...el.com,
        tmricht@...ux.ibm.com, namhyung@...nel.org, irogers@...gle.com,
        songliubraving@...com, yao.jin@...ux.intel.com,
        changbin.du@...el.com, leo.yan@...aro.org,
        linux-kernel@...r.kernel.org,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
Subject: [PATCH 6/8] perf annotate: Prefer cmdline option over default config

For all the perf-config options that can also be set from command line
option, the preference is given to command line version in case of any
conflict. But that's opposite in case of perf annotate. i.e. the more
preference is given to default option rather than command line option.
Fix it.

Before:

  $ ./perf config
  annotate.show_nr_samples=false

  $ ./perf annotate shash --show-nr-samples
  Percent│
         │24:   mov    -0xc(%rbp),%eax
   49.19 │      imul   $0x1003f,%eax,%ecx
         │      mov    -0x18(%rbp),%rax

After:

  Samples│
         │24:   mov    -0xc(%rbp),%eax
       1 │      imul   $0x1003f,%eax,%ecx
         │      mov    -0x18(%rbp),%rax

Signed-off-by: Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
---
 tools/perf/builtin-annotate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index ea89077bb8e0..6c0a0412502e 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -566,6 +566,8 @@ int cmd_annotate(int argc, const char **argv)
 	if (ret < 0)
 		return ret;
 
+	annotation_config__init(&annotate.opts);
+
 	argc = parse_options(argc, argv, options, annotate_usage, 0);
 	if (argc) {
 		/*
@@ -605,8 +607,6 @@ int cmd_annotate(int argc, const char **argv)
 	if (ret < 0)
 		goto out_delete;
 
-	annotation_config__init(&annotate.opts);
-
 	symbol_conf.try_vmlinux_path = true;
 
 	ret = symbol__init(&annotate.session->header.env);
-- 
2.24.1