Re: [PATCH 01/15] iommu: Define dev_iommu_fwspec_get() for !CONFIG_IOMMU_API

[Jean-Philippe Brucker]

On Tue, Mar 10, 2020 at 10:12:15AM +0100, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@xxxxxxx>
> 
> There are users outside of the IOMMU code that need to call that
> function. Define it for !CONFIG_IOMMU_API too so that compilation does
> not break.
> 
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>

Reviewed-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>

As a result drivers/gpu/host1x/hw/channel_hw.c and
drivers/gpu/drm/tegra/vic.c can lose their #ifdef CONFIG_IOMMU_API

> ---
>  include/linux/iommu.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index d1b5f4d98569..3c4ca041d7a2 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -1073,6 +1073,10 @@ static inline int iommu_sva_unbind_gpasid(struct iommu_domain *domain,
>  	return -ENODEV;
>  }
>  
> +static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev)
> +{
> +	return NULL;
> +}
>  #endif /* CONFIG_IOMMU_API */
>  
>  #ifdef CONFIG_IOMMU_DEBUGFS
> -- 
> 2.17.1
>