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SubjectRe: [PATCH v2 2/2] vfio: Use device_iommu_capable()
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On 2022/6/22 20:04, Robin Murphy wrote:
> Use the new interface to check the capabilities for our device
> specifically.
>
> Signed-off-by: Robin Murphy <robin.murphy@arm.com>
> ---
> drivers/vfio/vfio.c | 2 +-
> drivers/vfio/vfio_iommu_type1.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
> index 73bab04880d0..765d68192c88 100644
> --- a/drivers/vfio/vfio.c
> +++ b/drivers/vfio/vfio.c
> @@ -621,7 +621,7 @@ int vfio_register_group_dev(struct vfio_device *device)
> * VFIO always sets IOMMU_CACHE because we offer no way for userspace to
> * restore cache coherency.
> */
> - if (!iommu_capable(device->dev->bus, IOMMU_CAP_CACHE_COHERENCY))
> + if (!device_iommu_capable(device->dev, IOMMU_CAP_CACHE_COHERENCY))
> return -EINVAL;
>
> return __vfio_register_dev(device,
> diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
> index e38b8bfde677..2107e95eb743 100644
> --- a/drivers/vfio/vfio_iommu_type1.c
> +++ b/drivers/vfio/vfio_iommu_type1.c
> @@ -2247,7 +2247,7 @@ static int vfio_iommu_type1_attach_group(void *iommu_data,
> list_add(&group->next, &domain->group_list);
>
> msi_remap = irq_domain_check_msi_remap() ||
> - iommu_capable(iommu_api_dev->dev->bus, IOMMU_CAP_INTR_REMAP);
> + device_iommu_capable(iommu_api_dev->dev, IOMMU_CAP_INTR_REMAP);
>
> if (!allow_unsafe_interrupts && !msi_remap) {
> pr_warn("%s: No interrupt remapping support. Use the module param \"allow_unsafe_interrupts\" to enable VFIO IOMMU support on this platform\n",

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>

Best regards,
baolu

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