Re: [PATCH 4/4] ASoC: topology: Replace fake root_device with kunit_device in tests

[Amadeusz Sławiński <amadeuszx.slawinski@xxxxxxxxxxxxxxx>]

On 12/5/2023 8:31 AM, davidgow@xxxxxxxxxx wrote:
> 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@xxxxxxxxxx>
> ---
>   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>

Nitpick:
Can we add device.h before test.h, to keep it in alphabetical order?

>   
>   /* ===== 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);
>   }
>   
>   /*