RDMA/usnic: Use iommu_paging_domain_alloc()

usnic_uiom_alloc_pd() allocates a paging domain for a given device.
In this case, iommu_domain_alloc(dev->bus) is equivalent to 
iommu_paging_domain_alloc(dev). Replace it as iommu_domain_alloc()
has been deprecated.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240610085555.88197-15-baolu.lu@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index 84e0f41e7dfa9ce581411bf56e386d3b8a22b776..f948b76f984dbb5e816fa006b07c5a16b6a1df1d 100644 (file)
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -443,11 +443,11 @@ struct usnic_uiom_pd *usnic_uiom_alloc_pd(struct device *dev)
        if (!pd)
                return ERR_PTR(-ENOMEM);
 
-       pd->domain = domain = iommu_domain_alloc(dev->bus);
-       if (!domain) {
+       pd->domain = domain = iommu_paging_domain_alloc(dev);
+       if (IS_ERR(domain)) {
                usnic_err("Failed to allocate IOMMU domain");
                kfree(pd);
-               return ERR_PTR(-ENOMEM);
+               return ERR_CAST(domain);
        }
 
        iommu_set_fault_handler(pd->domain, usnic_uiom_dma_fault, NULL);