[PATCH v1 1/2] drm/selftests/mm: Switch to bitmap_zalloc()

[Joonas Lahtinen]

I take it that both instances are supposed to call bitmap_zalloc?

If you can send a v2 that compiles, I can merge it after it passes the
CI.

Regards, Joonas

Quoting Andy Shevchenko (2019-03-04 11:03:20)
> Switch to bitmap_zalloc() to show clearly what we are allocating.
> Besides that it returns pointer of bitmap type instead of opaque void *.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
> ---
>  drivers/gpu/drm/selftests/test-drm_mm.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c b/drivers/gpu/drm/selftests/test-drm_mm.c
> index fbed2c90fd51..d1206aef26af 100644
> --- a/drivers/gpu/drm/selftests/test-drm_mm.c
> +++ b/drivers/gpu/drm/selftests/test-drm_mm.c
> @@ -1615,7 +1615,7 @@ static int igt_topdown(void *ignored)
>         DRM_RND_STATE(prng, random_seed);
>         const unsigned int count = 8192;
>         unsigned int size;
> -       unsigned long *bitmap = NULL;
> +       unsigned long *bitmap;
>         struct drm_mm mm;
>         struct drm_mm_node *nodes, *node, *next;
>         unsigned int *order, n, m, o = 0;
> @@ -1631,8 +1631,7 @@ static int igt_topdown(void *ignored)
>         if (!nodes)
>                 goto err;
>  
> -       bitmap = kcalloc(count / BITS_PER_LONG, sizeof(unsigned long),
> -                        GFP_KERNEL);
> +       bitmap = bitmap_zalloc(count, GFP_KERNEL);
>         if (!bitmap)
>                 goto err_nodes;
>  
> @@ -1717,7 +1716,7 @@ static int igt_topdown(void *ignored)
>         drm_mm_takedown(&mm);
>         kfree(order);
>  err_bitmap:
> -       kfree(bitmap);
> +       bitmap_free(bitmap);
>  err_nodes:
>         vfree(nodes);
>  err:
> @@ -1745,8 +1744,7 @@ static int igt_bottomup(void *ignored)
>         if (!nodes)
>                 goto err;
>  
> -       bitmap = kcalloc(count / BITS_PER_LONG, sizeof(unsigned long),
> -                        GFP_KERNEL);
> +       bitmap = bitmap_zcalloc(count, GFP_KERNEL);
>         if (!bitmap)
>                 goto err_nodes;
>  
> @@ -1818,7 +1816,7 @@ static int igt_bottomup(void *ignored)
>         drm_mm_takedown(&mm);
>         kfree(order);
>  err_bitmap:
> -       kfree(bitmap);
> +       bitmap_free(bitmap);
>  err_nodes:
>         vfree(nodes);
>  err:
> -- 
> 2.20.1
>