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Date: Mon, 28 Nov 2022 14:46:47 +0800
From: Lu Baolu <baolu.lu@...ux.intel.com>
To: Joerg Roedel <joro@...tes.org>, Jason Gunthorpe <jgg@...dia.com>,
Christoph Hellwig <hch@...radead.org>,
Kevin Tian <kevin.tian@...el.com>,
Will Deacon <will@...nel.org>,
Robin Murphy <robin.murphy@....com>,
Jean-Philippe Brucker <jean-philippe@...aro.org>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
Hector Martin <marcan@...can.st>,
Sven Peter <sven@...npeter.dev>,
Rob Clark <robdclark@...il.com>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Yong Wu <yong.wu@...iatek.com>,
Matthias Brugger <matthias.bgg@...il.com>,
Heiko Stuebner <heiko@...ech.de>,
Matthew Rosato <mjrosato@...ux.ibm.com>,
Orson Zhai <orsonzhai@...il.com>,
Baolin Wang <baolin.wang@...ux.alibaba.com>,
Chunyan Zhang <zhang.lyra@...il.com>,
Chen-Yu Tsai <wens@...e.org>,
Thierry Reding <thierry.reding@...il.com>,
iommu@...ts.linux.dev, linux-kernel@...r.kernel.org,
Lu Baolu <baolu.lu@...ux.intel.com>
Subject: [PATCH v3 19/20] iommu: Retire detach_dev callback
The detach_dev callback of domain ops is not used in the IOMMU core.
Remove this callback to avoid dead code.
Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
---
include/linux/iommu.h | 2 --
drivers/iommu/fsl_pamu_domain.c | 1 -
drivers/iommu/msm_iommu.c | 1 -
drivers/iommu/mtk_iommu_v1.c | 1 -
drivers/iommu/omap-iommu.c | 1 -
drivers/iommu/s390-iommu.c | 1 -
drivers/iommu/tegra-gart.c | 1 -
drivers/iommu/tegra-smmu.c | 1 -
8 files changed, 9 deletions(-)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 3542461558fa..4c0491e5708c 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -294,7 +294,6 @@ struct iommu_ops {
* * EBUSY - device is attached to a domain and cannot be changed
* * ENODEV - device specific errors, not able to be attached
* * <others> - treated as ENODEV by the caller. Use is discouraged
- * @detach_dev: detach an iommu domain from a device
* @set_dev_pasid: set an iommu domain to a pasid of device
* @map: map a physically contiguous memory region to an iommu domain
* @map_pages: map a physically contiguous set of pages of the same size to
@@ -315,7 +314,6 @@ struct iommu_ops {
*/
struct iommu_domain_ops {
int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
- void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
int (*set_dev_pasid)(struct iommu_domain *domain, struct device *dev,
ioasid_t pasid);
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index b8c716e7c424..272d88e415c6 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -463,7 +463,6 @@ static const struct iommu_ops fsl_pamu_ops = {
.set_platform_dma = fsl_pamu_set_platform_dma;
.default_domain_ops = &(const struct iommu_domain_ops) {
.attach_dev = fsl_pamu_attach_device,
- .detach_dev = fsl_pamu_detach_device,
.iova_to_phys = fsl_pamu_iova_to_phys,
.free = fsl_pamu_domain_free,
}
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 3eb1bc668cad..564f9dc0140d 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -691,7 +691,6 @@ static struct iommu_ops msm_iommu_ops = {
.of_xlate = qcom_iommu_of_xlate,
.default_domain_ops = &(const struct iommu_domain_ops) {
.attach_dev = msm_iommu_attach_dev,
- .detach_dev = msm_iommu_detach_dev,
.map_pages = msm_iommu_map,
.unmap_pages = msm_iommu_unmap,
/*
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index 6a815da8a020..c2d80b7a377f 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -597,7 +597,6 @@ static const struct iommu_ops mtk_iommu_v1_ops = {
.owner = THIS_MODULE,
.default_domain_ops = &(const struct iommu_domain_ops) {
.attach_dev = mtk_iommu_v1_attach_device,
- .detach_dev = mtk_iommu_v1_detach_device,
.map_pages = mtk_iommu_v1_map,
.unmap_pages = mtk_iommu_v1_unmap,
.iova_to_phys = mtk_iommu_v1_iova_to_phys,
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index aa3858a48bbf..c3eedab00038 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1749,7 +1749,6 @@ static const struct iommu_ops omap_iommu_ops = {
.pgsize_bitmap = OMAP_IOMMU_PGSIZES,
.default_domain_ops = &(const struct iommu_domain_ops) {
.attach_dev = omap_iommu_attach_dev,
- .detach_dev = omap_iommu_detach_dev,
.map = omap_iommu_map,
.unmap = omap_iommu_unmap,
.iova_to_phys = omap_iommu_iova_to_phys,
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index 507bbc2c9b58..33dba5ee5e20 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -448,7 +448,6 @@ static const struct iommu_ops s390_iommu_ops = {
.get_resv_regions = s390_iommu_get_resv_regions,
.default_domain_ops = &(const struct iommu_domain_ops) {
.attach_dev = s390_iommu_attach_device,
- .detach_dev = s390_iommu_detach_device,
.map_pages = s390_iommu_map_pages,
.unmap_pages = s390_iommu_unmap_pages,
.flush_iotlb_all = s390_iommu_flush_iotlb_all,
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index f56e40b5c47a..a532b333233f 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -283,7 +283,6 @@ static const struct iommu_ops gart_iommu_ops = {
.of_xlate = gart_iommu_of_xlate,
.default_domain_ops = &(const struct iommu_domain_ops) {
.attach_dev = gart_iommu_attach_dev,
- .detach_dev = gart_iommu_detach_dev,
.map = gart_iommu_map,
.unmap = gart_iommu_unmap,
.iova_to_phys = gart_iommu_iova_to_phys,
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index a36e163e5cc1..247d485904c1 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -978,7 +978,6 @@ static const struct iommu_ops tegra_smmu_ops = {
.pgsize_bitmap = SZ_4K,
.default_domain_ops = &(const struct iommu_domain_ops) {
.attach_dev = tegra_smmu_attach_dev,
- .detach_dev = tegra_smmu_detach_dev,
.map = tegra_smmu_map,
.unmap = tegra_smmu_unmap,
.iova_to_phys = tegra_smmu_iova_to_phys,
--
2.34.1
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