Re: [PATCH v2 1/4] bitmap: define a cleanup function for bitmaps

Yury Norov
2023-09-20T17:17:15Z

On Wed, Sep 20, 2023 at 09:54:57AM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> Add support for autopointers for bitmaps allocated with bitmap_alloc()
> et al.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
> include/linux/bitmap.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
> index 03644237e1ef..6709807ebb59 100644
> --- a/include/linux/bitmap.h
> +++ b/include/linux/bitmap.h
> @@ -6,6 +6,7 @@
>
> #include <linux/align.h>
> #include <linux/bitops.h>
> +#include <linux/cleanup.h>
> #include <linux/find.h>
> #include <linux/limits.h>
> #include <linux/string.h>
> @@ -125,6 +126,8 @@ unsigned long *bitmap_alloc_node(unsigned int nbits, gfp_t flags, int node);
> unsigned long *bitmap_zalloc_node(unsigned int nbits, gfp_t flags, int node);
> void bitmap_free(const unsigned long *bitmap);
>
> +DEFINE_FREE(bitmap, unsigned long *, if (_T) bitmap_free(_T))
> +
> /* Managed variants of the above. */
> unsigned long *devm_bitmap_alloc(struct device *dev,
> unsigned int nbits, gfp_t flags);

Acked-by: Yury Norov <yury.norov@gmail.com>