Re: [PATCH] drm/tests: Add back seed value information

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Hi Arthur,

On 10/26/22 18:14, Arthur Grillo wrote:
> As reported by Michał the drm_mm and drm_buddy unit tests lost the
> printk with seed value after they being refactored into kunit. This

Some grammar nits:
- s/being/were
- s/kunit/KUnit

> patch adds back this important information to assure reproducibility
> converting them to use the kunit api.
> 
> Signed-off-by: Arthur Grillo <arthurgrillo@xxxxxxxxxx>
> Reported-by: Michał Winiarski <michal.winiarski@xxxxxxxxx>

I believe that Michał's should come before your tag, as the SoB chain
should reflect the real route a patch took as it was propagated to the
maintainers [1].

> ---
>  drivers/gpu/drm/tests/drm_buddy_test.c | 3 +++
>  drivers/gpu/drm/tests/drm_mm_test.c    | 4 +++-
>  2 files changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c
> index 62f69589a72d..83c8863bc643 100644
> --- a/drivers/gpu/drm/tests/drm_buddy_test.c
> +++ b/drivers/gpu/drm/tests/drm_buddy_test.c
> @@ -731,6 +731,9 @@ static int drm_buddy_init_test(struct kunit *test)
>  	while (!random_seed)
>  		random_seed = get_random_u32();
>  
> +	kunit_info("Testing DRM buddy manager (struct drm_buddy), with random_seed=0x%x\n",
> +		random_seed);

I'm getting some compiling errors here:

ERROR:root:../drivers/gpu/drm/tests/drm_buddy_test.c:735:3: error:
expected ')'
                random_seed);
                ^
../drivers/gpu/drm/tests/drm_buddy_test.c:734:2: note: to match this '('
        kunit_info("Testing DRM buddy manager (struct drm_buddy), with
random_seed=0x%x\n",
        ^

You can reproduce it by running:

$ ./tools/testing/kunit/kunit.py --kunitconfig=drivers/gpu/drm/tests

Moreover, could you address the checkpatch issues? There are some
misaligned parenthesis and the line are too big.

> +
>  	return 0;
>  }
>  
> diff --git a/drivers/gpu/drm/tests/drm_mm_test.c b/drivers/gpu/drm/tests/drm_mm_test.c
> index c4b66eeae203..492347069d58 100644
> --- a/drivers/gpu/drm/tests/drm_mm_test.c
> +++ b/drivers/gpu/drm/tests/drm_mm_test.c
> @@ -2214,6 +2214,9 @@ static int drm_mm_init_test(struct kunit *test)
>  	while (!random_seed)
>  		random_seed = get_random_u32();
>  
> +	kunit_info("Testing DRM range manager (struct drm_mm), with random_seed=0x%x max_iterations=%u max_prime=%u\n",
> +	random_seed, max_iterations, max_prime);
> +

Same here.

>  	return 0;
>  }
>  
> @@ -2251,6 +2254,5 @@ static struct kunit_suite drm_mm_test_suite = {
>  };
>  
>  kunit_test_suite(drm_mm_test_suite);
> -

There is no need to change this line.

Thanks for your patch!

[1]
https://docs.kernel.org/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin

Best Regards,
- Maíra Canal


>  MODULE_AUTHOR("Intel Corporation");
>  MODULE_LICENSE("GPL");



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