linux-kernel - [PATCH] selftests: cpufreq: Write test output to stdout as well

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Date:   Fri, 14 Jan 2022 18:21:26 -0500
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Shuah Khan <shuah@...nel.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-pm@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
Subject: [PATCH] selftests: cpufreq: Write test output to stdout as well

Use 'tee' to send the test output to stdout in addition to the current
output file. This makes the output easier to handle in automated test
systems and is superior to only later dumping the output file contents
to stdout, since this way the test output can be interleaved with other
log messages, like from the kernel, so that chronology is preserved,
making it easier to detect issues.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
---
 tools/testing/selftests/cpufreq/main.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/cpufreq/main.sh b/tools/testing/selftests/cpufreq/main.sh
index 31f8c9a76c5f..60ce18ed0666 100755
--- a/tools/testing/selftests/cpufreq/main.sh
+++ b/tools/testing/selftests/cpufreq/main.sh
@@ -194,5 +194,5 @@ prerequisite
 
 # Run requested functions
 clear_dumps $OUTFILE
-do_test >> $OUTFILE.txt
+do_test | tee -a $OUTFILE.txt
 dmesg_dumps $OUTFILE
-- 
2.34.1