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Subject[PATCH 4.18 045/235] perf test: Fix subtest number when showing results
Date
4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Thomas Richter <tmricht@linux.ibm.com>

[ Upstream commit 9ef0112442bdddef5fb55adf20b3a5464b33de75 ]

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@s35lp76 perf]# ./perf test -Fv 40 2>/tmp/bpf1

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

Output before:

[root@s35lp76 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@s35lp76 perf]#

Output after:

root@s35lp76 ~]# 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@s35lp76 ~]#

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20180724134858.100644-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
tools/perf/tests/builtin-test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- 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 ch
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;
}

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