Re: [PATCH 1/6] drm/tests/drm_buddy: fix 32b build

[Matthew Auld <matthew.auld@intel.com>]

On 15/02/2024 17:44, Matthew Auld wrote:
> Doesn't seem to compile on 32b, presumably due to u64 mod/division.
> Simplest is to just switch over to u32 here. Also make print modifiers
> consistent with that.
> 
> Fixes: a64056bb5a32 ("drm/tests/drm_buddy: add alloc_contiguous test")
> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
> Cc: Christian König <christian.koenig@amd.com>
> Cc: Maxime Ripard <mripard@redhat.com>

Any chance someone can push just this single patch here, since it fixes 
32b build? It already has an r-b from Arun.

> ---
>   drivers/gpu/drm/tests/drm_buddy_test.c | 16 ++++++++--------
>   1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c
> index fee6bec757d1..edacc1adb28f 100644
> --- a/drivers/gpu/drm/tests/drm_buddy_test.c
> +++ b/drivers/gpu/drm/tests/drm_buddy_test.c
> @@ -21,7 +21,7 @@ static inline u64 get_size(int order, u64 chunk_size)
>   
>   static void drm_test_buddy_alloc_contiguous(struct kunit *test)
>   {
> -	u64 mm_size, ps = SZ_4K, i, n_pages, total;
> +	u32 mm_size, ps = SZ_4K, i, n_pages, total;
>   	struct drm_buddy_block *block;
>   	struct drm_buddy mm;
>   	LIST_HEAD(left);
> @@ -56,30 +56,30 @@ static void drm_test_buddy_alloc_contiguous(struct kunit *test)
>   		KUNIT_ASSERT_FALSE_MSG(test,
>   				       drm_buddy_alloc_blocks(&mm, 0, mm_size,
>   							      ps, ps, list, 0),
> -				       "buddy_alloc hit an error size=%d\n",
> +				       "buddy_alloc hit an error size=%u\n",
>   				       ps);
>   	} while (++i < n_pages);
>   
>   	KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
>   							   3 * ps, ps, &allocated,
>   							   DRM_BUDDY_CONTIGUOUS_ALLOCATION),
> -			       "buddy_alloc didn't error size=%d\n", 3 * ps);
> +			       "buddy_alloc didn't error size=%u\n", 3 * ps);
>   
>   	drm_buddy_free_list(&mm, &middle);
>   	KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
>   							   3 * ps, ps, &allocated,
>   							   DRM_BUDDY_CONTIGUOUS_ALLOCATION),
> -			       "buddy_alloc didn't error size=%llu\n", 3 * ps);
> +			       "buddy_alloc didn't error size=%u\n", 3 * ps);
>   	KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
>   							   2 * ps, ps, &allocated,
>   							   DRM_BUDDY_CONTIGUOUS_ALLOCATION),
> -			       "buddy_alloc didn't error size=%llu\n", 2 * ps);
> +			       "buddy_alloc didn't error size=%u\n", 2 * ps);
>   
>   	drm_buddy_free_list(&mm, &right);
>   	KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
>   							   3 * ps, ps, &allocated,
>   							   DRM_BUDDY_CONTIGUOUS_ALLOCATION),
> -			       "buddy_alloc didn't error size=%llu\n", 3 * ps);
> +			       "buddy_alloc didn't error size=%u\n", 3 * ps);
>   	/*
>   	 * At this point we should have enough contiguous space for 2 blocks,
>   	 * however they are never buddies (since we freed middle and right) so
> @@ -88,13 +88,13 @@ static void drm_test_buddy_alloc_contiguous(struct kunit *test)
>   	KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
>   							    2 * ps, ps, &allocated,
>   							    DRM_BUDDY_CONTIGUOUS_ALLOCATION),
> -			       "buddy_alloc hit an error size=%d\n", 2 * ps);
> +			       "buddy_alloc hit an error size=%u\n", 2 * ps);
>   
>   	drm_buddy_free_list(&mm, &left);
>   	KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
>   							    3 * ps, ps, &allocated,
>   							    DRM_BUDDY_CONTIGUOUS_ALLOCATION),
> -			       "buddy_alloc hit an error size=%d\n", 3 * ps);
> +			       "buddy_alloc hit an error size=%u\n", 3 * ps);
>   
>   	total = 0;
>   	list_for_each_entry(block, &allocated, link)