linux-kernel - [PATCH] kselftest/runner: avoid using timeout when timeout is disabled

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Date:   Fri, 27 Mar 2020 10:36:20 +0100
From:   Andrea Righi <andrea.righi@...onical.com>
To:     Shuah Khan <shuah@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] kselftest/runner: avoid using timeout when timeout is
 disabled

Avoid using /usr/bin/timeout unnecessarily if timeout is set to 0
(disabled) in the "settings" file for a specific test.

NOTE: without this change (and adding timeout=0 in the corresponding
settings file - tools/testing/selftests/seccomp/settings) the
seccomp_bpf selftest is always failing with a timeout event during the
syscall_restart step.

Signed-off-by: Andrea Righi <andrea.righi@...onical.com>
---
 tools/testing/selftests/kselftest/runner.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kselftest/runner.sh b/tools/testing/selftests/kselftest/runner.sh
index e84d901f8567..2cd3c8def0f6 100644
--- a/tools/testing/selftests/kselftest/runner.sh
+++ b/tools/testing/selftests/kselftest/runner.sh
@@ -32,7 +32,7 @@ tap_prefix()
 tap_timeout()
 {
 	# Make sure tests will time out if utility is available.
-	if [ -x /usr/bin/timeout ] ; then
+	if [ -x /usr/bin/timeout ] && [ $kselftest_timeout -gt 0 ] ; then
 		/usr/bin/timeout "$kselftest_timeout" "$1"
 	else
 		"$1"
-- 
2.25.1