[PATCH 05/10] iommu: Make iommu_device_link/unlink take a struct iommu_device

Joerg Roedel
2017-02-06T16:13:05Z

This makes the interface more consistent with
iommu_device_sysfs_add/remove.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/amd_iommu.c | 4 ++--
drivers/iommu/intel-iommu.c | 4 ++--
drivers/iommu/iommu-sysfs.c | 16 ++++++++--------
include/linux/iommu.h | 4 ++--
4 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a584ac2..b8adfcc 100644
--- 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 3084837..364c54e 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -5181,7 +5181,7 @@ 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);

@@ -5203,7 +5203,7 @@ 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
--- 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 b6544b6..7e2ba06 100644
--- 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);

#define IOMMU_GROUP_NOTIFY_ADD_DEVICE 1 /* Device added */
#define IOMMU_GROUP_NOTIFY_DEL_DEVICE 2 /* Pre Device removed */
@@ -288,8 +290,6 @@ 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,
--
1.9.1