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Date:   Tue, 24 Jul 2018 15:48:58 +0200
From:   Thomas Richter <tmricht@...ux.ibm.com>
To:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        acme@...nel.org
Cc:     brueckner@...ux.vnet.ibm.com, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, Thomas Richter <tmricht@...ux.ibm.com>
Subject: [PATCH] perf test: Fix subtest number when showing results

Perf test 40 for example has several subtests numbered 1-4 when
displaying the start of the subtest. When the subtest results
are displayed the subtests are numbered 0-3.

Use this command to generate trace output:
[root@...lp76 perf]# ./perf test -Fv 40 2>/tmp/bpf1

Fix this by adjusting the subtest number when show the
subtest result.

Output before:
[root@...lp76 perf]# egrep '(^40\.[0-4]| subtest [0-4]:)' /tmp/bpf1
40.1: Basic BPF filtering                                 :
BPF filter subtest 0: Ok
40.2: BPF pinning                                         :
BPF filter subtest 1: Ok
40.3: BPF prologue generation                             :
BPF filter subtest 2: Ok
40.4: BPF relocation checker                              :
BPF filter subtest 3: Ok
[root@...lp76 perf]#

Output after:
root@...lp76 ~]# egrep '(^40\.[0-4]| subtest [0-4]:)' /tmp/bpf1
40.1: Basic BPF filtering                                 :
BPF filter subtest 1: Ok
40.2: BPF pinning                                         :
BPF filter subtest 2: Ok
40.3: BPF prologue generation                             :
BPF filter subtest 3: Ok
40.4: BPF relocation checker                              :
BPF filter subtest 4: Ok
[root@...lp76 ~]#

Signed-off-by: Thomas Richter <tmricht@...ux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@...ux.ibm.com>
---
 tools/perf/tests/builtin-test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index dd850a26d579..4f5de8245b32 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -599,7 +599,7 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
 			for (subi = 0; subi < subn; subi++) {
 				pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
 					t->subtest.get_desc(subi));
-				err = test_and_print(t, skip, subi);
+				err = test_and_print(t, skip, subi + 1);
 				if (err != TEST_OK && t->subtest.skip_if_fail)
 					skip = true;
 			}
-- 
2.14.3

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