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Date:   Tue, 05 Dec 2023 15:31:36 +0800
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Subject: [PATCH 4/4] ASoC: topology: Replace fake root_device with
 kunit_device in tests
From:   davidgow@google.com
To:     Rae Moar <rmoar@google.com>,
        Brendan Higgins <brendan.higgins@linux.dev>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Matti Vaittinen <mazziesaccount@gmail.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Shuah Khan <skhan@linuxfoundation.org>,
        Jonathan Corbet <corbet@lwn.net>,
        Kees Cook <keescook@chromium.org>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Maxime Ripard <mripard@kernel.org>
Cc:     linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-hardening@vger.kernel.org, linux-sound@vger.kernel.org,
        David Gow <davidgow@google.com>
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Precedence: bulk

Using struct root_device to create fake devices for tests is something
of a hack. The new struct kunit_device is meant for this purpose, so use
it instead.

Signed-off-by: David Gow <davidgow@google.com>
---
 sound/soc/soc-topology-test.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/sound/soc/soc-topology-test.c b/sound/soc/soc-topology-test.c
index 2cd3540cec04..1d7696e5bffc 100644
--- a/sound/soc/soc-topology-test.c
+++ b/sound/soc/soc-topology-test.c
@@ -10,6 +10,7 @@
 #include <sound/soc.h>
 #include <sound/soc-topology.h>
 #include <kunit/test.h>
+#include <kunit/device.h>
 
 /* ===== HELPER FUNCTIONS =================================================== */
 
@@ -21,26 +22,20 @@
  */
 static struct device *test_dev;
 
-static struct device_driver test_drv = {
-	.name = "sound-soc-topology-test-driver",
-};
-
 static int snd_soc_tplg_test_init(struct kunit *test)
 {
-	test_dev = root_device_register("sound-soc-topology-test");
+	test_dev = kunit_device_register(test, "sound-soc-topology-test");
 	test_dev = get_device(test_dev);
 	if (!test_dev)
 		return -ENODEV;
 
-	test_dev->driver = &test_drv;
-
 	return 0;
 }
 
 static void snd_soc_tplg_test_exit(struct kunit *test)
 {
 	put_device(test_dev);
-	root_device_unregister(test_dev);
+	kunit_device_unregister(test, test_dev);
 }
 
 /*

-- 
2.43.0.rc2.451.g8631bc7472-goog