Re: [PATCH v3 10/16] iommu: introduce device fault report API

[Jean-Philippe Brucker]

On 17/11/17 18:55, Jacob Pan wrote:
[...]
> +static inline int iommu_register_device_fault_handler(struct device *dev,
> +						iommu_dev_fault_handler_t handler,
> +						void *data)
> +{
> +	return 0;> +}
> +
> +static inline int iommu_unregister_device_fault_handler(struct device *dev)
> +{
> +	return 0;
> +}
> +
> +static inline bool iommu_has_device_fault_handler(struct device *dev)
> +{
> +	return false;
> +}
> +
> +static inline int iommu_report_device_fault(struct device *dev, struct iommu_fault_event *evt)
> +{
> +	return 0;
> +}

Not too important but these stubs, when CONFIG_IOMMU_API is disabled,
usually return an error value (-ENODEV) instead of 0.

Thanks,
Jean

> +
>  static inline int iommu_group_id(struct iommu_group *group)
>  {
>  	return -ENODEV;
>