[PATCH] drm/tests/buddy: fix build with unused prng

[Thomas Hellström]

On Wed, 2025-01-15 at 12:37 +0000, Matthew Auld wrote:
> We no longer use the prng, which leads to the following warning:
> 
> drivers/gpu/drm/tests/drm_buddy_test.c: In function
> ‘drm_test_buddy_alloc_clear’:
> drivers/gpu/drm/tests/drm_buddy_test.c:264:23: error: unused variable
> ‘prng’ [-Werror=unused-variable]
>   264 |         DRM_RND_STATE(prng, random_seed);
> 
> Reported-by: Jani Nikula <jani.nikula at intel.com>
> Reported-by: Thomas Hellström <thomas.hellstrom at linux.intel.com>
> Fixes: 8cb3a1e2b350 ("drm/buddy: Add a testcase to verify the
> multiroot fini")
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
> Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam at amd.com>
> Cc: Christian König <christian.koenig at amd.com>

Reviewed-by: Thomas Hellström <thomas.hellstrom at linux.intel.com>

> ---
>  drivers/gpu/drm/tests/drm_buddy_test.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c
> b/drivers/gpu/drm/tests/drm_buddy_test.c
> index 4b5818f9f2a9..7a0e523651f0 100644
> --- a/drivers/gpu/drm/tests/drm_buddy_test.c
> +++ b/drivers/gpu/drm/tests/drm_buddy_test.c
> @@ -261,7 +261,6 @@ static void
> drm_test_buddy_alloc_range_bias(struct kunit *test)
>  static void drm_test_buddy_alloc_clear(struct kunit *test)
>  {
>  	unsigned long n_pages, total, i = 0;
> -	DRM_RND_STATE(prng, random_seed);
>  	const unsigned long ps = SZ_4K;
>  	struct drm_buddy_block *block;
>  	const int max_order = 12;