linux-kernel - [PATCH v2] selftests: timers: clocksource-switch: add 'runtime' command line parameter

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Message-Id: <20220714185721.48125-1-wsa+renesas@sang-engineering.com>
Date:   Thu, 14 Jul 2022 20:57:21 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-renesas-soc@...r.kernel.org
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        John Stultz <jstultz@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Stephen Boyd <sboyd@...nel.org>, Shuah Khan <shuah@...nel.org>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH v2] selftests: timers: clocksource-switch: add 'runtime' command line parameter

So the user can decide how long the test should run.

Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
Acked-by: John Stultz <jstultz@...gle.com>
---

Change since V1:
* added the new parameter to the help printout

 tools/testing/selftests/timers/clocksource-switch.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/timers/clocksource-switch.c b/tools/testing/selftests/timers/clocksource-switch.c
index 5256e6215980..577e4b74211a 100644
--- a/tools/testing/selftests/timers/clocksource-switch.c
+++ b/tools/testing/selftests/timers/clocksource-switch.c
@@ -124,17 +124,22 @@ int main(int argc, char **argv)
 	char orig_clk[512];
 	int count, i, status, opt;
 	int do_sanity_check = 1;
+	int runtime = 60;
 	pid_t pid;
 
 	/* Process arguments */
-	while ((opt = getopt(argc, argv, "s")) != -1) {
+	while ((opt = getopt(argc, argv, "st:")) != -1) {
 		switch (opt) {
 		case 's':
 			do_sanity_check = 0;
 			break;
+		case 't':
+			runtime = atoi(optarg);
+			break;
 		default:
-			printf("Usage: %s [-s]\n", argv[0]);
+			printf("Usage: %s [-s] [-t <secs>]\n", argv[0]);
 			printf("	-s: skip sanity checks\n");
+			printf("	-t: Number of seconds to run\n");
 			exit(-1);
 		}
 	}
@@ -167,7 +172,7 @@ int main(int argc, char **argv)
 	printf("Running Asynchronous Switching Tests...\n");
 	pid = fork();
 	if (!pid)
-		return run_tests(60);
+		return run_tests(runtime);
 
 	while (pid != waitpid(pid, &status, WNOHANG))
 		for (i = 0; i < count; i++)
-- 
2.35.1