Re: [PATCH] resource: Remove dependency on SPARSEMEM from GET_FREE_REGION

[David Hildenbrand]

On 15.10.24 07:15, Huang Ying wrote:
> We want to use the functions configured via GET_FREE_REGION in
> resource kunit tests.  However, GET_FREE_REGION depends on SPARSEMEM.
> This makes resource kunit tests cannot be built on some architectures
> lacking SPARSEMEM.  In fact, these functions doesn't depend on
> SPARSEMEM now.  So, remove dependency on SPARSEMEM from
> GET_FREE_REGION.
>
> Link: https://lore.kernel.org/lkml/20240922225041.603186-1-linux@xxxxxxxxxxxx/
> Signed-off-by: "Huang, Ying" <ying.huang@xxxxxxxxx>
> Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
> Cc: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Cc: David Hildenbrand <david@xxxxxxxxxx>
> Cc: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>
> ---
>   mm/Kconfig | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/mm/Kconfig b/mm/Kconfig
> index 4c9f5ea13271..33fa51d608dc 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -1085,7 +1085,6 @@ config HMM_MIRROR
>   	depends on MMU
>   
>   config GET_FREE_REGION
> -	depends on SPARSEMEM
>   	bool
>   
>   config DEVICE_PRIVATE

Added by

commit 14b80582c43e4f550acfd93c2b2cadbe36ea0874
Author: Dan Williams <dan.j.williams@xxxxxxxxx>
Date:   Fri May 20 13:41:24 2022 -0700

    resource: Introduce alloc_free_mem_region()

@Dan, any insight why that dependency was added?

--
Cheers,

David / dhildenb