iommu: Make iommu_device_link/unlink take a struct iommu_device

This makes the interface more consistent with
iommu_device_sysfs_add/remove.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 4fee2fd..ba708c5 100644 (file)
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -472,7 +472,7 @@ static int iommu_init_device(struct device *dev)
 
        dev->archdata.iommu = dev_data;
 
-       iommu_device_link(&iommu->iommu.dev, dev);
+       iommu_device_link(&iommu->iommu, dev);
 
        return 0;
 }
@@ -514,7 +514,7 @@ static void iommu_uninit_device(struct device *dev)
        if (dev_data->domain)
                detach_device(dev);
 
-       iommu_device_unlink(&iommu->iommu.dev, dev);
+       iommu_device_unlink(&iommu->iommu, dev);
 
        iommu_group_remove_device(dev);
 

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 316730c..cbe7c49 100644 (file)
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -5162,7 +5162,7 @@ static int intel_iommu_add_device(struct device *dev)
        if (!iommu)
                return -ENODEV;
 
-       iommu_device_link(&iommu->iommu.dev, dev);
+       iommu_device_link(&iommu->iommu, dev);
 
        group = iommu_group_get_for_dev(dev);
 
@@ -5184,7 +5184,7 @@ static void intel_iommu_remove_device(struct device *dev)
 
        iommu_group_remove_device(dev);
 
-       iommu_device_unlink(&iommu->iommu.dev, dev);
+       iommu_device_unlink(&iommu->iommu, dev);
 }
 
 #ifdef CONFIG_INTEL_IOMMU_SVM

diff --git a/drivers/iommu/iommu-sysfs.c b/drivers/iommu/iommu-sysfs.c
index bb87d35..c58351e 100644 (file)
--- a/drivers/iommu/iommu-sysfs.c
+++ b/drivers/iommu/iommu-sysfs.c
@@ -95,31 +95,31 @@ void iommu_device_sysfs_remove(struct iommu_device *iommu)
  * directory of the IOMMU device in sysfs and an "iommu" link will be
  * created under the linked device, pointing back at the IOMMU device.
  */
-int iommu_device_link(struct device *dev, struct device *link)
+int iommu_device_link(struct iommu_device *iommu, struct device *link)
 {
        int ret;
 
-       if (!dev || IS_ERR(dev))
+       if (!iommu || IS_ERR(iommu))
                return -ENODEV;
 
-       ret = sysfs_add_link_to_group(&dev->kobj, "devices",
+       ret = sysfs_add_link_to_group(&iommu->dev.kobj, "devices",
                                      &link->kobj, dev_name(link));
        if (ret)
                return ret;
 
-       ret = sysfs_create_link_nowarn(&link->kobj, &dev->kobj, "iommu");
+       ret = sysfs_create_link_nowarn(&link->kobj, &iommu->dev.kobj, "iommu");
        if (ret)
-               sysfs_remove_link_from_group(&dev->kobj, "devices",
+               sysfs_remove_link_from_group(&iommu->dev.kobj, "devices",
                                             dev_name(link));
 
        return ret;
 }
 
-void iommu_device_unlink(struct device *dev, struct device *link)
+void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
 {
-       if (!dev || IS_ERR(dev))
+       if (!iommu || IS_ERR(iommu))
                return;
 
        sysfs_remove_link(&link->kobj, "iommu");
-       sysfs_remove_link_from_group(&dev->kobj, "devices", dev_name(link));
+       sysfs_remove_link_from_group(&iommu->dev.kobj, "devices", dev_name(link));
 }

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index c578ca1..bae3cfc 100644 (file)
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -224,6 +224,8 @@ int  iommu_device_sysfs_add(struct iommu_device *iommu,
                            const struct attribute_group **groups,
                            const char *fmt, ...) __printf(4, 5);
 void iommu_device_sysfs_remove(struct iommu_device *iommu);
+int  iommu_device_link(struct iommu_device   *iommu, struct device *link);
+void iommu_device_unlink(struct iommu_device *iommu, struct device *link);
 
 static inline void iommu_device_set_ops(struct iommu_device *iommu,
                                        const struct iommu_ops *ops)
@@ -294,8 +296,6 @@ extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr,
                                 void *data);
 extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr,
                                 void *data);
-int iommu_device_link(struct device *dev, struct device *link);
-void iommu_device_unlink(struct device *dev, struct device *link);
 
 /* Window handling function prototypes */
 extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,