The detach callback of the iommu domain ops is not used in some IOMMU
drivers. The detach_dev actually means setting a default domain or a
blocking domain to the device. As attach_dev actually acts as setting
domain for a device, this renames attach_dev to set_dev to reflect the
actual usage.

Suggested-by: Jason Gunthorpe <j...@nvidia.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
 include/linux/iommu.h                       | 4 ++--
 drivers/iommu/amd/iommu.c                   | 2 +-
 drivers/iommu/apple-dart.c                  | 2 +-
 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +-
 drivers/iommu/arm/arm-smmu/arm-smmu.c       | 2 +-
 drivers/iommu/arm/arm-smmu/qcom_iommu.c     | 2 +-
 drivers/iommu/exynos-iommu.c                | 2 +-
 drivers/iommu/fsl_pamu_domain.c             | 2 +-
 drivers/iommu/intel/iommu.c                 | 2 +-
 drivers/iommu/iommu.c                       | 6 +++---
 drivers/iommu/ipmmu-vmsa.c                  | 2 +-
 drivers/iommu/msm_iommu.c                   | 2 +-
 drivers/iommu/mtk_iommu.c                   | 2 +-
 drivers/iommu/mtk_iommu_v1.c                | 2 +-
 drivers/iommu/omap-iommu.c                  | 2 +-
 drivers/iommu/rockchip-iommu.c              | 2 +-
 drivers/iommu/s390-iommu.c                  | 2 +-
 drivers/iommu/sprd-iommu.c                  | 2 +-
 drivers/iommu/sun50i-iommu.c                | 2 +-
 drivers/iommu/tegra-gart.c                  | 2 +-
 drivers/iommu/tegra-smmu.c                  | 2 +-
 drivers/iommu/virtio-iommu.c                | 2 +-
 22 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 5e1afe169549..572399ac1d83 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -261,7 +261,7 @@ struct iommu_ops {
 
 /**
  * struct iommu_domain_ops - domain specific operations
- * @attach_dev: attach an iommu domain to a device
+ * @set_dev: set an iommu domain to a device
  * @detach_dev: detach an iommu domain from a 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
@@ -281,7 +281,7 @@ struct iommu_ops {
  * @free: Release the domain after use.
  */
 struct iommu_domain_ops {
-       int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
+       int (*set_dev)(struct iommu_domain *domain, struct device *dev);
        void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
 
        int (*map)(struct iommu_domain *domain, unsigned long iova,
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 840831d5d2ad..01b8668ef46d 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -2285,7 +2285,7 @@ const struct iommu_ops amd_iommu_ops = {
        .pgsize_bitmap  = AMD_IOMMU_PGSIZES,
        .def_domain_type = amd_iommu_def_domain_type,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = amd_iommu_attach_device,
+               .set_dev        = amd_iommu_attach_device,
                .detach_dev     = amd_iommu_detach_device,
                .map            = amd_iommu_map,
                .unmap          = amd_iommu_unmap,
diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c
index 8af0242a90d9..a0b7281f1989 100644
--- a/drivers/iommu/apple-dart.c
+++ b/drivers/iommu/apple-dart.c
@@ -775,7 +775,7 @@ static const struct iommu_ops apple_dart_iommu_ops = {
        .pgsize_bitmap = -1UL, /* Restricted during dart probe */
        .owner = THIS_MODULE,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = apple_dart_attach_dev,
+               .set_dev        = apple_dart_attach_dev,
                .detach_dev     = apple_dart_detach_dev,
                .map_pages      = apple_dart_map_pages,
                .unmap_pages    = apple_dart_unmap_pages,
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c 
b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 88817a3376ef..7e7d9e0b7aee 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2859,7 +2859,7 @@ static struct iommu_ops arm_smmu_ops = {
        .pgsize_bitmap          = -1UL, /* Restricted during device attach */
        .owner                  = THIS_MODULE,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev             = arm_smmu_attach_dev,
+               .set_dev                = arm_smmu_attach_dev,
                .map_pages              = arm_smmu_map_pages,
                .unmap_pages            = arm_smmu_unmap_pages,
                .flush_iotlb_all        = arm_smmu_flush_iotlb_all,
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c 
b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 2ed3594f384e..c91d12b7e283 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -1597,7 +1597,7 @@ static struct iommu_ops arm_smmu_ops = {
        .pgsize_bitmap          = -1UL, /* Restricted during device attach */
        .owner                  = THIS_MODULE,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev             = arm_smmu_attach_dev,
+               .set_dev                = arm_smmu_attach_dev,
                .map_pages              = arm_smmu_map_pages,
                .unmap_pages            = arm_smmu_unmap_pages,
                .flush_iotlb_all        = arm_smmu_flush_iotlb_all,
diff --git a/drivers/iommu/arm/arm-smmu/qcom_iommu.c 
b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
index 4c077c38fbd6..cf624bd305e0 100644
--- a/drivers/iommu/arm/arm-smmu/qcom_iommu.c
+++ b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
@@ -596,7 +596,7 @@ static const struct iommu_ops qcom_iommu_ops = {
        .of_xlate       = qcom_iommu_of_xlate,
        .pgsize_bitmap  = SZ_4K | SZ_64K | SZ_1M | SZ_16M,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = qcom_iommu_attach_dev,
+               .set_dev        = qcom_iommu_attach_dev,
                .detach_dev     = qcom_iommu_detach_dev,
                .map            = qcom_iommu_map,
                .unmap          = qcom_iommu_unmap,
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 71f2018e23fe..797348f3440e 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1315,7 +1315,7 @@ static const struct iommu_ops exynos_iommu_ops = {
        .pgsize_bitmap = SECT_SIZE | LPAGE_SIZE | SPAGE_SIZE,
        .of_xlate = exynos_iommu_of_xlate,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = exynos_iommu_attach_device,
+               .set_dev        = exynos_iommu_attach_device,
                .detach_dev     = exynos_iommu_detach_device,
                .map            = exynos_iommu_map,
                .unmap          = exynos_iommu_unmap,
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index 94b4589dc67c..7512c8e007e9 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -458,7 +458,7 @@ static const struct iommu_ops fsl_pamu_ops = {
        .release_device = fsl_pamu_release_device,
        .device_group   = fsl_pamu_device_group,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = fsl_pamu_attach_device,
+               .set_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/intel/iommu.c b/drivers/iommu/intel/iommu.c
index e56b3a4b6998..6abc1fbbd461 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -4925,7 +4925,7 @@ const struct iommu_ops intel_iommu_ops = {
        .page_response          = intel_svm_page_response,
 #endif
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev             = intel_iommu_attach_device,
+               .set_dev                = intel_iommu_attach_device,
                .detach_dev             = intel_iommu_detach_device,
                .map_pages              = intel_iommu_map_pages,
                .unmap_pages            = intel_iommu_unmap_pages,
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 847ad47a2dfd..8eba26be4363 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1963,10 +1963,10 @@ static int __iommu_attach_device(struct iommu_domain 
*domain,
 {
        int ret;
 
-       if (unlikely(domain->ops->attach_dev == NULL))
+       if (unlikely(domain->ops->set_dev == NULL))
                return -ENODEV;
 
-       ret = domain->ops->attach_dev(domain, dev);
+       ret = domain->ops->set_dev(domain, dev);
        if (!ret)
                trace_attach_device_to_domain(dev);
        return ret;
@@ -2142,7 +2142,7 @@ static int __iommu_group_set_domain(struct iommu_group 
*group,
        }
 
        /*
-        * Changing the domain is done by calling attach_dev() on the new
+        * Changing the domain is done by calling set_dev() on the new
         * domain. This switch does not have to be atomic and DMA can be
         * discarded during the transition. DMA must only be able to access
         * either new_domain or group->domain, never something else.
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 8fdb84b3642b..b361a4cff688 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -877,7 +877,7 @@ static const struct iommu_ops ipmmu_ops = {
        .pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K,
        .of_xlate = ipmmu_of_xlate,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = ipmmu_attach_device,
+               .set_dev        = ipmmu_attach_device,
                .detach_dev     = ipmmu_detach_device,
                .map            = ipmmu_map,
                .unmap          = ipmmu_unmap,
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index f09aedfdd462..569d36840b67 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -682,7 +682,7 @@ static struct iommu_ops msm_iommu_ops = {
        .pgsize_bitmap = MSM_IOMMU_PGSIZES,
        .of_xlate = qcom_iommu_of_xlate,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = msm_iommu_attach_dev,
+               .set_dev        = msm_iommu_attach_dev,
                .detach_dev     = msm_iommu_detach_dev,
                .map            = msm_iommu_map,
                .unmap          = msm_iommu_unmap,
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index bb9dd92c9898..33ec401d40eb 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -937,7 +937,7 @@ static const struct iommu_ops mtk_iommu_ops = {
        .pgsize_bitmap  = SZ_4K | SZ_64K | SZ_1M | SZ_16M,
        .owner          = THIS_MODULE,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = mtk_iommu_attach_device,
+               .set_dev        = mtk_iommu_attach_device,
                .detach_dev     = mtk_iommu_detach_device,
                .map            = mtk_iommu_map,
                .unmap          = mtk_iommu_unmap,
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index e1cb51b9866c..fb55802fb841 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -594,7 +594,7 @@ static const struct iommu_ops mtk_iommu_v1_ops = {
        .pgsize_bitmap  = ~0UL << MT2701_IOMMU_PAGE_SHIFT,
        .owner          = THIS_MODULE,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = mtk_iommu_v1_attach_device,
+               .set_dev        = mtk_iommu_v1_attach_device,
                .detach_dev     = mtk_iommu_v1_detach_device,
                .map            = mtk_iommu_v1_map,
                .unmap          = mtk_iommu_v1_unmap,
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index d9cf2820c02e..6720dcb437a0 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1739,7 +1739,7 @@ static const struct iommu_ops omap_iommu_ops = {
        .device_group   = omap_iommu_device_group,
        .pgsize_bitmap  = OMAP_IOMMU_PGSIZES,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = omap_iommu_attach_dev,
+               .set_dev        = omap_iommu_attach_dev,
                .detach_dev     = omap_iommu_detach_dev,
                .map            = omap_iommu_map,
                .unmap          = omap_iommu_unmap,
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index ab57c4b8fade..0a4196c34179 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1193,7 +1193,7 @@ static const struct iommu_ops rk_iommu_ops = {
        .pgsize_bitmap = RK_IOMMU_PGSIZE_BITMAP,
        .of_xlate = rk_iommu_of_xlate,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = rk_iommu_attach_device,
+               .set_dev        = rk_iommu_attach_device,
                .detach_dev     = rk_iommu_detach_device,
                .map            = rk_iommu_map,
                .unmap          = rk_iommu_unmap,
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index 3833e86c6e7b..cde01c72f573 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -368,7 +368,7 @@ static const struct iommu_ops s390_iommu_ops = {
        .device_group = generic_device_group,
        .pgsize_bitmap = S390_IOMMU_PGSIZES,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = s390_iommu_attach_device,
+               .set_dev        = s390_iommu_attach_device,
                .detach_dev     = s390_iommu_detach_device,
                .map            = s390_iommu_map,
                .unmap          = s390_iommu_unmap,
diff --git a/drivers/iommu/sprd-iommu.c b/drivers/iommu/sprd-iommu.c
index bd409bab6286..45b58845f5f8 100644
--- a/drivers/iommu/sprd-iommu.c
+++ b/drivers/iommu/sprd-iommu.c
@@ -423,7 +423,7 @@ static const struct iommu_ops sprd_iommu_ops = {
        .pgsize_bitmap  = ~0UL << SPRD_IOMMU_PAGE_SHIFT,
        .owner          = THIS_MODULE,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = sprd_iommu_attach_device,
+               .set_dev        = sprd_iommu_attach_device,
                .detach_dev     = sprd_iommu_detach_device,
                .map            = sprd_iommu_map,
                .unmap          = sprd_iommu_unmap,
diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index c54ab477b8fd..041b30463552 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -766,7 +766,7 @@ static const struct iommu_ops sun50i_iommu_ops = {
        .probe_device   = sun50i_iommu_probe_device,
        .release_device = sun50i_iommu_release_device,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = sun50i_iommu_attach_device,
+               .set_dev        = sun50i_iommu_attach_device,
                .detach_dev     = sun50i_iommu_detach_device,
                .flush_iotlb_all = sun50i_iommu_flush_iotlb_all,
                .iotlb_sync     = sun50i_iommu_iotlb_sync,
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index a6700a40a6f8..f083a9fba4d0 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -278,7 +278,7 @@ static const struct iommu_ops gart_iommu_ops = {
        .pgsize_bitmap  = GART_IOMMU_PGSIZES,
        .of_xlate       = gart_iommu_of_xlate,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = gart_iommu_attach_dev,
+               .set_dev        = gart_iommu_attach_dev,
                .detach_dev     = gart_iommu_detach_dev,
                .map            = gart_iommu_map,
                .unmap          = gart_iommu_unmap,
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 1fea68e551f1..36e9c2864e3f 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -971,7 +971,7 @@ static const struct iommu_ops tegra_smmu_ops = {
        .of_xlate = tegra_smmu_of_xlate,
        .pgsize_bitmap = SZ_4K,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev     = tegra_smmu_attach_dev,
+               .set_dev        = tegra_smmu_attach_dev,
                .detach_dev     = tegra_smmu_detach_dev,
                .map            = tegra_smmu_map,
                .unmap          = tegra_smmu_unmap,
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 25be4b822aa0..ce2bd01806d8 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -1017,7 +1017,7 @@ static struct iommu_ops viommu_ops = {
        .of_xlate               = viommu_of_xlate,
        .owner                  = THIS_MODULE,
        .default_domain_ops = &(const struct iommu_domain_ops) {
-               .attach_dev             = viommu_attach_dev,
+               .set_dev                = viommu_attach_dev,
                .map                    = viommu_map,
                .unmap                  = viommu_unmap,
                .iova_to_phys           = viommu_iova_to_phys,
-- 
2.25.1

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