From: Lu Baolu <baolu.lu@linux.intel.com>
Date: Mon, 10 Jun 2024 08:55:45 +0000 (+0800)
Subject: wifi: ath11k: Use iommu_paging_domain_alloc()
X-Git-Tag: v6.11-rc1~115^2^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ef50d41fbf1c95b07f636f4e268c53488a39284b;p=thirdparty%2Fkernel%2Flinux.git

wifi: ath11k: Use iommu_paging_domain_alloc()

An iommu domain is allocated in ath11k_ahb_fw_resources_init() and is
attached to ab_ahb->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/20240610085555.88197-12-baolu.lu@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>
---

diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
index ca0f17ddebbaa..a469647719f96 100644
--- a/drivers/net/wireless/ath/ath11k/ahb.c
+++ b/drivers/net/wireless/ath/ath11k/ahb.c
@@ -1001,10 +1001,10 @@ static int ath11k_ahb_fw_resources_init(struct ath11k_base *ab)
 
 	ab_ahb->fw.dev = &pdev->dev;
 
-	iommu_dom = iommu_domain_alloc(&platform_bus_type);
-	if (!iommu_dom) {
+	iommu_dom = iommu_paging_domain_alloc(ab_ahb->fw.dev);
+	if (IS_ERR(iommu_dom)) {
 		ath11k_err(ab, "failed to allocate iommu domain\n");
-		ret = -ENOMEM;
+		ret = PTR_ERR(iommu_dom);
 		goto err_unregister;
 	}