Re: [PATCH 08/15] iommu: Introduce accessors for iommu private data

[Jean-Philippe Brucker]

On Tue, Mar 10, 2020 at 10:12:22AM +0100, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@xxxxxxx>
> 
> Add dev_iommu_priv_get/set() functions to access per-device iommu
> private data. This makes it easier to move the pointer to a different
> location.
> 
> Tested-by: Will Deacon <will@xxxxxxxxxx> # arm-smmu
> Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>

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

> ---
>  include/linux/iommu.h | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index f5edc21a644d..056900e75758 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -627,6 +627,16 @@ static inline void dev_iommu_fwspec_set(struct device *dev,
>  	dev->iommu->fwspec = fwspec;
>  }
>  
> +static inline void *dev_iommu_priv_get(struct device *dev)
> +{
> +	return dev->iommu->fwspec->iommu_priv;
> +}
> +
> +static inline void dev_iommu_priv_set(struct device *dev, void *priv)
> +{
> +	dev->iommu->fwspec->iommu_priv = priv;
> +}
> +
>  int iommu_probe_device(struct device *dev);
>  void iommu_release_device(struct device *dev);
>  
> -- 
> 2.17.1
>