Hi Andy,
On 8/2/22 21:35, Andy Shevchenko wrote:
> In order to make the underneath API easier to change in the future,
> prevent users from dereferencing fwnode from struct device.
> Instead, use the specific dev_fwnode() and device_match_fwnode()
> APIs for that.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
Thanks
Eric
> ---
> drivers/acpi/viot.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/acpi/viot.c b/drivers/acpi/viot.c
> index 647f11cf165d..6132092dab2a 100644
> --- a/drivers/acpi/viot.c
> +++ b/drivers/acpi/viot.c
> @@ -88,7 +88,7 @@ static int __init viot_get_pci_iommu_fwnode(struct viot_iommu *viommu,
> return -ENODEV;
> }
>
> - fwnode = pdev->dev.fwnode;
> + fwnode = dev_fwnode(&pdev->dev);
> if (!fwnode) {
> /*
> * PCI devices aren't necessarily described by ACPI. Create a
> @@ -101,7 +101,7 @@ static int __init viot_get_pci_iommu_fwnode(struct viot_iommu *viommu,
> }
> set_primary_fwnode(&pdev->dev, fwnode);
> }
> - viommu->fwnode = pdev->dev.fwnode;
> + viommu->fwnode = dev_fwnode(&pdev->dev);
> pci_dev_put(pdev);
> return 0;
> }
> @@ -314,7 +314,7 @@ static int viot_dev_iommu_init(struct device *dev, struct viot_iommu *viommu,
> return -ENODEV;
>
> /* We're not translating ourself */
> - if (viommu->fwnode == dev->fwnode)
> + if (device_match_fwnode(dev, viommu->fwnode))
> return -EINVAL;
>
> ops = iommu_ops_from_fwnode(viommu->fwnode);
