wifi: ath10k: Use iommu_paging_domain_alloc()

An iommu domain is allocated in ath10k_fw_init() and is attached to
ar_snoc->fw.dev in the same function. Use iommu_paging_domain_alloc() to
make it explicit.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240610085555.88197-11-baolu.lu@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 8530550cf5df777b03000a61e01b02c4c7fc9263..0fe47d51013c7cb296a6e6b5483cde867929768b 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -1635,10 +1635,10 @@ static int ath10k_fw_init(struct ath10k *ar)
 
        ar_snoc->fw.dev = &pdev->dev;
 
-       iommu_dom = iommu_domain_alloc(&platform_bus_type);
-       if (!iommu_dom) {
+       iommu_dom = iommu_paging_domain_alloc(ar_snoc->fw.dev);
+       if (IS_ERR(iommu_dom)) {
                ath10k_err(ar, "failed to allocate iommu domain\n");
-               ret = -ENOMEM;
+               ret = PTR_ERR(iommu_dom);
                goto err_unregister;
        }