Thread (15 messages) 15 messages, 4 authors, 2025-11-20
STALE245d
Revisions (3)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]

[PATCH v2 2/3] iommu/amd: Don't call report_iommu_fault()

From: Jason Gunthorpe <jgg@nvidia.com>
Date: 2025-11-06 20:35:05
Also in: linux-arm-msm, linux-iommu, linux-mediatek, linux-patches, linux-rdma, linux-rockchip, linux-sunxi
Subsystem: amd iommu (amd-vi), iommu subsystem, the rest · Maintainers: Joerg Roedel, Will Deacon, Linus Torvalds

This old style API is only used by drivers/gpu/drm/msm,
drivers/remoteproc/omap_remoteproc.c, and
drivers/remoteproc/qcom_q6v5_adsp.c none are used on x86 HW.

Remove the dead code to discourage new users.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/iommu/amd/iommu.c | 7 -------
 1 file changed, 7 deletions(-)
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 2e1865daa1cee8..d4d9a5dbfa6333 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -854,13 +854,6 @@ static void amd_iommu_report_page_fault(struct amd_iommu *iommu,
 						   PCI_FUNC(devid), domain_id);
 				goto out;
 			}
-
-			if (!report_iommu_fault(&dev_data->domain->domain,
-						&pdev->dev, address,
-						IS_WRITE_REQUEST(flags) ?
-							IOMMU_FAULT_WRITE :
-							IOMMU_FAULT_READ))
-				goto out;
 		}
 
 		if (__ratelimit(&dev_data->rs)) {
-- 
2.43.0

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