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Message-Id: <2b559a7d0d2be46729f3a03dc639dd4a69e465bb.1666390362.git.skhan@linuxfoundation.org>
Date:   Fri, 21 Oct 2022 16:18:19 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     skhan@...uxfoundation.org, shuah@...nel.org
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] selftests/watchdog: add test for WDIOC_GETTEMP

Add test for WDIOC_GETTEMP and this ioctl might not be supported by some
devices and if it is this test will print the following message:

Inappropriate ioctl for device

Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
---
 tools/testing/selftests/watchdog/watchdog-test.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
index 03103eaa946c..5ec0384b7f02 100644
--- a/tools/testing/selftests/watchdog/watchdog-test.c
+++ b/tools/testing/selftests/watchdog/watchdog-test.c
@@ -1,12 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
 * Watchdog Driver Test Program
-* - Tests all ioctls except WDIOC_GETTEMP
+* - Tests all ioctls
 * - Tests Magic Close - CONFIG_WATCHDOG_NOWAYOUT
 * - Could be tested against softdog driver on systems that
 *   don't have watchdog hadrware.
-* - TODO:
-* - Enhance test to add coverage for WDIOC_GETTEMP.
 *
 * Reference: Documentation/watchdog/watchdog-api.rst
  */
@@ -177,6 +175,7 @@ int main(int argc, char *argv[])
 	int oneshot = 0;
 	char *file = "/dev/watchdog";
 	struct watchdog_info info;
+	int temperature;
 
 	setbuf(stdout, NULL);
 
@@ -255,6 +254,12 @@ int main(int argc, char *argv[])
 				print_status(flags);
 			else
 				printf("WDIOC_GETSTATUS error '%s'\n", strerror(errno));
+			ret = ioctl(fd, WDIOC_GETTEMP, &temperature);
+			if (ret)
+				printf("WDIOC_GETTEMP: '%s'\n", strerror(errno));
+			else
+				printf("Temeprature: %d\n", temperature);
+
 			break;
 		case 't':
 			flags = strtoul(optarg, NULL, 0);
-- 
2.34.1

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