Re: [PATCH 2/2] nouveau: fix dependencies for DEVICE_PRIVATE

[Randy Dunlap <rdunlap@infradead.org>]

On 5/8/20 7:40 AM, Arnd Bergmann wrote:
> CONFIG_DEVICE_PRIVATE cannot be selected in configurations
> without ZONE_DEVICE:
> 
> WARNING: unmet direct dependencies detected for DEVICE_PRIVATE
>   Depends on [n]: ZONE_DEVICE [=n]
>   Selected by [y]:
>   - DRM_NOUVEAU_SVM [=y] && HAS_IOMEM [=y] && DRM_NOUVEAU [=y] && MMU [=y] && STAGING [=y]
> kernel/resource.c:1653:28: error: use of undeclared identifier 'PA_SECTION_SHIFT'
>         size = ALIGN(size, 1UL << PA_SECTION_SHIFT);
>                                   ^
> kernel/resource.c:1654:48: error: use of undeclared identifier 'MAX_PHYSMEM_BITS'
> 
> Add a dependency for Nouveau to avoid broken randconfig builds.
> 
> Fixes: d2c63df2242e ("mm/hmm: make CONFIG_DEVICE_PRIVATE into a select")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested

Thanks.

> ---
>  drivers/gpu/drm/nouveau/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig
> index af5793f3e7c2..996ec5475908 100644
> --- a/drivers/gpu/drm/nouveau/Kconfig
> +++ b/drivers/gpu/drm/nouveau/Kconfig
> @@ -87,6 +87,7 @@ config DRM_NOUVEAU_BACKLIGHT
>  config DRM_NOUVEAU_SVM
>  	bool "(EXPERIMENTAL) Enable SVM (Shared Virtual Memory) support"
>  	depends on DRM_NOUVEAU
> +	depends on ZONE_DEVICE
>  	depends on MMU
>  	depends on STAGING
>  	select DEVICE_PRIVATE
> 


-- 
~Randy