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iommu: Remove unused argument in is_attach_deferred

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The is_attach_deferred iommu_ops callback is a device op. The domain
argument is unnecessary and never used. Remove it to make code clean.

Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20220216025249.3459465-9-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Lu Baolu 2022-02-16 10:52:48 +08:00 committed by Joerg Roedel
parent 3f6634d997
commit 41bb23e70b
6 changed files with 11 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/iommu/amd/amd_iommu.h
View File

@ -116,8 +116,7 @@ void amd_iommu_domain_clr_pt_root(struct protection_domain *domain)
extern bool translation_pre_enabled(struct amd_iommu *iommu);
extern bool amd_iommu_is_attach_deferred(struct iommu_domain *domain,
struct device *dev);
extern bool amd_iommu_is_attach_deferred(struct device *dev);
extern int __init add_special_device(u8 type, u8 id, u16 *devid,
bool cmd_line);

3
drivers/iommu/amd/iommu.c
View File

@ -2215,8 +2215,7 @@ static void amd_iommu_get_resv_regions(struct device *dev,
list_add_tail(&region->list, head);
}
bool amd_iommu_is_attach_deferred(struct iommu_domain *domain,
struct device *dev)
bool amd_iommu_is_attach_deferred(struct device *dev)
{
struct iommu_dev_data *dev_data = dev_iommu_priv_get(dev);

2
drivers/iommu/amd/iommu_v2.c
View File

@ -537,7 +537,7 @@ static int ppr_notifier(struct notifier_block *nb, unsigned long e, void *data)
ret = NOTIFY_DONE;
/* In kdump kernel pci dev is not initialized yet -> send INVALID */
if (amd_iommu_is_attach_deferred(NULL, &pdev->dev)) {
if (amd_iommu_is_attach_deferred(&pdev->dev)) {
amd_iommu_complete_ppr(pdev, iommu_fault->pasid,
PPR_INVALID, tag);
goto out;

3
drivers/iommu/intel/iommu.c
View File

@ -5052,8 +5052,7 @@ intel_iommu_dev_disable_feat(struct device *dev, enum iommu_dev_features feat)
}
}
static bool intel_iommu_is_attach_deferred(struct iommu_domain *domain,
struct device *dev)
static bool intel_iommu_is_attach_deferred(struct device *dev)
{
return attach_deferred(dev);
}

15
drivers/iommu/iommu.c
View File

@ -831,13 +831,12 @@ out:
return ret;
}
static bool iommu_is_attach_deferred(struct iommu_domain *domain,
struct device *dev)
static bool iommu_is_attach_deferred(struct device *dev)
{
const struct iommu_ops *ops = dev_iommu_ops(dev);
if (ops->is_attach_deferred)
return ops->is_attach_deferred(domain, dev);
return ops->is_attach_deferred(dev);
return false;
}
@ -894,7 +893,7 @@ rename:
mutex_lock(&group->mutex);
list_add_tail(&device->list, &group->devices);
if (group->domain && !iommu_is_attach_deferred(group->domain, dev))
if (group->domain && !iommu_is_attach_deferred(dev))
ret = __iommu_attach_device(group->domain, dev);
mutex_unlock(&group->mutex);
if (ret)
@ -1745,7 +1744,7 @@ static int iommu_group_do_dma_attach(struct device *dev, void *data)
struct iommu_domain *domain = data;
int ret = 0;
if (!iommu_is_attach_deferred(domain, dev))
if (!iommu_is_attach_deferred(dev))
ret = __iommu_attach_device(domain, dev);
return ret;
@ -2020,9 +2019,7 @@ EXPORT_SYMBOL_GPL(iommu_attach_device);
int iommu_deferred_attach(struct device *dev, struct iommu_domain *domain)
{
const struct iommu_ops *ops = dev_iommu_ops(dev);
if (ops->is_attach_deferred && ops->is_attach_deferred(domain, dev))
if (iommu_is_attach_deferred(dev))
return __iommu_attach_device(domain, dev);
return 0;
@ -2031,7 +2028,7 @@ int iommu_deferred_attach(struct device *dev, struct iommu_domain *domain)
static void __iommu_detach_device(struct iommu_domain *domain,
struct device *dev)
{
if (iommu_is_attach_deferred(domain, dev))
if (iommu_is_attach_deferred(dev))
return;
if (unlikely(domain->ops->detach_dev == NULL))

2
include/linux/iommu.h
View File

@ -269,7 +269,7 @@ struct iommu_ops {
void (*put_resv_regions)(struct device *dev, struct list_head *list);
int (*of_xlate)(struct device *dev, struct of_phandle_args *args);
bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev);
bool (*is_attach_deferred)(struct device *dev);
/* Per device IOMMU features */
bool (*dev_has_feat)(struct device *dev, enum iommu_dev_features f);