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iommu: Make iommu_device_link/unlink take a struct iommu_device

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This makes the interface more consistent with
iommu_device_sysfs_add/remove.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2017-02-01 17:23:22 +01:00
parent 39ab9555c2
commit e3d10af112
4 changed files with 14 additions and 14 deletions
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4
drivers/iommu/amd_iommu.c
View File

@ -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);

4
drivers/iommu/intel-iommu.c
View File

@ -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

16
drivers/iommu/iommu-sysfs.c
View File

@ -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));
}

4
include/linux/iommu.h
View File

@ -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,