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From: Jason Gunthorpe <jgg@nvidia.com>
To: AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Christian Benvenuti <benve@cisco.com>,
	Heiko Stuebner <heiko@sntech.de>,
	iommu@lists.linux.dev, Jernej Skrabec <jernej.skrabec@gmail.com>,
	Joerg Roedel <joro@8bytes.org>, Leon Romanovsky <leon@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-arm-msm@vger.kernel.org,
	linux-mediatek@lists.infradead.org, linux-rdma@vger.kernel.org,
	linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Nelson Escobar <neescoba@cisco.com>,
	Rob Clark <robin.clark@oss.qualcomm.com>,
	Robin Murphy <robin.murphy@arm.com>,
	Samuel Holland <samuel@sholland.org>,
	Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
	Chen-Yu Tsai <wens@csie.org>, Will Deacon <will@kernel.org>,
	Yong Wu <yong.wu@mediatek.com>
Cc: Lu Baolu <baolu.lu@linux.intel.com>, patches@lists.linux.dev
Subject: [PATCH v2 2/3] iommu/amd: Don't call report_iommu_fault()
Date: Thu,  6 Nov 2025 16:34:58 -0400	[thread overview]
Message-ID: <2-v2-25fc75484cab+ab-iommu_set_fault_jgg@nvidia.com> (raw)
In-Reply-To: <0-v2-25fc75484cab+ab-iommu_set_fault_jgg@nvidia.com>

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


  parent reply	other threads:[~2025-11-06 20:35 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-06 20:34 [PATCH v2 0/3] Cleanup around iommu_set_fault_handler() Jason Gunthorpe
2025-11-06 20:34 ` [PATCH v2 1/3] RDMA/usnic: Remove iommu_set_fault_handler() Jason Gunthorpe
2025-11-17  6:37   ` Tian, Kevin
2025-11-06 20:34 ` Jason Gunthorpe [this message]
2025-11-08 11:17   ` [PATCH v2 2/3] iommu/amd: Don't call report_iommu_fault() Vasant Hegde
2025-11-18 18:57     ` Jason Gunthorpe
2025-11-17  6:38   ` Tian, Kevin
2025-11-18 18:58     ` Jason Gunthorpe
2025-11-18 23:58       ` Tian, Kevin
2025-11-20 19:35         ` Jason Gunthorpe
2025-11-06 20:34 ` [PATCH v2 3/3] iommu: Allow drivers to say if they use report_iommu_fault() Jason Gunthorpe
2025-11-08 11:20   ` Vasant Hegde
2025-11-17  6:43   ` Tian, Kevin
2025-11-18  1:30   ` Chaoyi Chen
2025-11-18 19:00     ` Jason Gunthorpe

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