linux-kernel - Re: [PATCH v4] drm/tests: Add back seed value information

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Date:   Fri, 28 Oct 2022 17:54:42 -0300
From:   Maíra Canal <mairacanal@...eup.net>
To:     Arthur Grillo <arthurgrillo@...eup.net>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Javier Martinez Canillas <javierm@...hat.com>,
        Toke Høiland-Jørgensen <toke@...e.dk>,
        "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        David Gow <davidgow@...gle.com>,
        Daniel Latypov <dlatypov@...gle.com>, andrealmeid@...eup.net,
        melissa.srw@...il.com,
        Michał Winiarski <michal.winiarski@...el.com>
Subject: Re: [PATCH v4] drm/tests: Add back seed value information

Hi Arthur,

Just a small nit below, but besides that:

Reviewed-by: Maíra Canal <mairacanal@...eup.net>

On 10/28/22 11:17, Arthur Grillo wrote:
> As reported by Michał the drm_mm and drm_buddy unit tests lost the
> printk with seed value after they were refactored into KUnit.
> 
> Add kunit_info with seed value information to assure reproducibility.
> 
> Reported-by: Michał Winiarski <michal.winiarski@...el.com>
> Signed-off-by: Arthur Grillo <arthurgrillo@...eup.net>
> ---
> v1->v2: https://lore.kernel.org/all/20221026211458.68432-1-arthurgrillo@riseup.net/
> - Correct compilation issues
> - Change tags order
> - Remove useless line change
> - Write commit message in imperative form
> - Remove redundant message part
> - Correct some grammars nits
> - Correct checkpatch issues
> 
> v2->v3: https://lore.kernel.org/all/20221027142903.200169-1-arthurgrillo@riseup.net/
> - Change .init to .suite_init
> - Correct some grammars nits
> 
> v3->v4:
> - Correct compilation issues
> 
> ---
>  drivers/gpu/drm/tests/drm_buddy_test.c | 6 ++++--
>  drivers/gpu/drm/tests/drm_mm_test.c    | 8 ++++++--
>  2 files changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c
> index 62f69589a72d..90ec5e8a485b 100644
> --- a/drivers/gpu/drm/tests/drm_buddy_test.c
> +++ b/drivers/gpu/drm/tests/drm_buddy_test.c
> @@ -726,11 +726,13 @@ static void drm_test_buddy_alloc_limit(struct kunit *test)
>  	drm_buddy_fini(&mm);
>  }
>  
> -static int drm_buddy_init_test(struct kunit *test)
> +static int drm_buddy_init_suite(struct kunit_suite *suite)

Just to keep complaint to the rest of the KUnit tests (such as kcsan,
kfence, kmsan), could you change "init_suite" to "suite_init"? Same
thing for the drm_mm test.

Thanks for the quick respin of the patch!

Best Regards,
- Maíra Canal

>  {
>  	while (!random_seed)
>  		random_seed = get_random_u32();
>  
> +	kunit_info(suite, "Testing DRM buddy manager, with random_seed=0x%x\n", random_seed);
> +
>  	return 0;
>  }
>  
> @@ -746,7 +748,7 @@ static struct kunit_case drm_buddy_tests[] = {
>  
>  static struct kunit_suite drm_buddy_test_suite = {
>  	.name = "drm_buddy",
> -	.init = drm_buddy_init_test,
> +	.suite_init = drm_buddy_init_suite,
>  	.test_cases = drm_buddy_tests,
>  };
>