iommu: Rename struct iommu_param to dev_iommu

The term dev_iommu aligns better with other existing structures and
their accessor functions.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Will Deacon <will@kernel.org> # arm-smmu
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200326150841.10083-6-joro@8bytes.org

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 660eea8..15d64a1 100644 (file)
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -152,9 +152,9 @@ void iommu_device_unregister(struct iommu_device *iommu)
 }
 EXPORT_SYMBOL_GPL(iommu_device_unregister);
 
-static struct iommu_param *iommu_get_dev_param(struct device *dev)
+static struct dev_iommu *dev_iommu_get(struct device *dev)
 {
-       struct iommu_param *param = dev->iommu_param;
+       struct dev_iommu *param = dev->iommu;
 
        if (param)
                return param;
@@ -164,14 +164,14 @@ static struct iommu_param *iommu_get_dev_param(struct device *dev)
                return NULL;
 
        mutex_init(&param->lock);
-       dev->iommu_param = param;
+       dev->iommu = param;
        return param;
 }
 
-static void iommu_free_dev_param(struct device *dev)
+static void dev_iommu_free(struct device *dev)
 {
-       kfree(dev->iommu_param);
-       dev->iommu_param = NULL;
+       kfree(dev->iommu);
+       dev->iommu = NULL;
 }
 
 int iommu_probe_device(struct device *dev)
@@ -183,7 +183,7 @@ int iommu_probe_device(struct device *dev)
        if (!ops)
                return -EINVAL;
 
-       if (!iommu_get_dev_param(dev))
+       if (!dev_iommu_get(dev))
                return -ENOMEM;
 
        if (!try_module_get(ops->owner)) {
@@ -200,7 +200,7 @@ int iommu_probe_device(struct device *dev)
 err_module_put:
        module_put(ops->owner);
 err_free_dev_param:
-       iommu_free_dev_param(dev);
+       dev_iommu_free(dev);
        return ret;
 }
 
@@ -211,9 +211,9 @@ void iommu_release_device(struct device *dev)
        if (dev->iommu_group)
                ops->remove_device(dev);
 
-       if (dev->iommu_param) {
+       if (dev->iommu) {
                module_put(ops->owner);
-               iommu_free_dev_param(dev);
+               dev_iommu_free(dev);
        }
 }
 
@@ -972,7 +972,7 @@ int iommu_register_device_fault_handler(struct device *dev,
                                        iommu_dev_fault_handler_t handler,
                                        void *data)
 {
-       struct iommu_param *param = dev->iommu_param;
+       struct dev_iommu *param = dev->iommu;
        int ret = 0;
 
        if (!param)
@@ -1015,7 +1015,7 @@ EXPORT_SYMBOL_GPL(iommu_register_device_fault_handler);
  */
 int iommu_unregister_device_fault_handler(struct device *dev)
 {
-       struct iommu_param *param = dev->iommu_param;
+       struct dev_iommu *param = dev->iommu;
        int ret = 0;
 
        if (!param)
@@ -1055,7 +1055,7 @@ EXPORT_SYMBOL_GPL(iommu_unregister_device_fault_handler);
  */
 int iommu_report_device_fault(struct device *dev, struct iommu_fault_event *evt)
 {
-       struct iommu_param *param = dev->iommu_param;
+       struct dev_iommu *param = dev->iommu;
        struct iommu_fault_event *evt_pending = NULL;
        struct iommu_fault_param *fparam;
        int ret = 0;
@@ -1104,7 +1104,7 @@ int iommu_page_response(struct device *dev,
        int ret = -EINVAL;
        struct iommu_fault_event *evt;
        struct iommu_fault_page_request *prm;
-       struct iommu_param *param = dev->iommu_param;
+       struct dev_iommu *param = dev->iommu;
        struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
 
        if (!domain || !domain->ops->page_response)

diff --git a/include/linux/device.h b/include/linux/device.h
index 0cd7c64..af621f9 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -44,7 +44,7 @@ struct iommu_ops;
 struct iommu_group;
 struct iommu_fwspec;
 struct dev_pin_info;
-struct iommu_param;
+struct dev_iommu;
 
 /**
  * struct subsys_interface - interfaces to device functions
@@ -514,7 +514,7 @@ struct dev_links_info {
  *             device (i.e. the bus driver that discovered the device).
  * @iommu_group: IOMMU group the device belongs to.
  * @iommu_fwspec: IOMMU-specific properties supplied by firmware.
- * @iommu_param: Per device generic IOMMU runtime data
+ * @iommu:     Per device generic IOMMU runtime data
  *
  * @offline_disabled: If set, the device is permanently online.
  * @offline:   Set after successful invocation of bus type's .offline().
@@ -614,7 +614,7 @@ struct device {
        void    (*release)(struct device *dev);
        struct iommu_group      *iommu_group;
        struct iommu_fwspec     *iommu_fwspec;
-       struct iommu_param      *iommu_param;
+       struct dev_iommu        *iommu;
 
        bool                    offline_disabled:1;
        bool                    offline:1;

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 505163e..843baaa 100644 (file)
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -365,7 +365,7 @@ struct iommu_fault_param {
 };
 
 /**
- * struct iommu_param - collection of per-device IOMMU data
+ * struct dev_iommu - Collection of per-device IOMMU data
  *
  * @fault_param: IOMMU detected device fault reporting data
  *
@@ -373,7 +373,7 @@ struct iommu_fault_param {
  *     struct iommu_group      *iommu_group;
  *     struct iommu_fwspec     *iommu_fwspec;
  */
-struct iommu_param {
+struct dev_iommu {
        struct mutex lock;
        struct iommu_fault_param *fault_param;
 };