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iommu: remove iommu_dev_feature_enabled

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Remove the unused iommu_dev_feature_enabled function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20220708080616.238833-3-hch@lst.de
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Christoph Hellwig 2022-07-08 10:06:14 +02:00 committed by Joerg Roedel
parent 309c56e846
commit a871765d55
3 changed files with 0 additions and 23 deletions
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1
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
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@ -2853,7 +2853,6 @@ static struct iommu_ops arm_smmu_ops = {
.of_xlate = arm_smmu_of_xlate,
.get_resv_regions = arm_smmu_get_resv_regions,
.put_resv_regions = generic_iommu_put_resv_regions,
.dev_feat_enabled = arm_smmu_dev_feature_enabled,
.dev_enable_feat = arm_smmu_dev_enable_feature,
.dev_disable_feat = arm_smmu_dev_disable_feature,
.sva_bind = arm_smmu_sva_bind,

13
drivers/iommu/iommu.c
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@ -2760,19 +2760,6 @@ int iommu_dev_disable_feature(struct device *dev, enum iommu_dev_features feat)
}
EXPORT_SYMBOL_GPL(iommu_dev_disable_feature);
bool iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features feat)
{
if (dev->iommu && dev->iommu->iommu_dev) {
const struct iommu_ops *ops = dev->iommu->iommu_dev->ops;
if (ops->dev_feat_enabled)
return ops->dev_feat_enabled(dev, feat);
}
return false;
}
EXPORT_SYMBOL_GPL(iommu_dev_feature_enabled);
/**
* iommu_sva_bind_device() - Bind a process address space to a device
* @dev: the device

9
include/linux/iommu.h
View File

@ -215,7 +215,6 @@ struct iommu_iotlb_gather {
* driver init to device driver init (default no)
* @dev_has/enable/disable_feat: per device entries to check/enable/disable
* iommu specific features.
* @dev_feat_enabled: check enabled feature
* @sva_bind: Bind process address space to device
* @sva_unbind: Unbind process address space from device
* @sva_get_pasid: Get PASID associated to a SVA handle
@ -247,7 +246,6 @@ struct iommu_ops {
bool (*is_attach_deferred)(struct device *dev);
/* Per device IOMMU features */
bool (*dev_feat_enabled)(struct device *dev, enum iommu_dev_features f);
int (*dev_enable_feat)(struct device *dev, enum iommu_dev_features f);
int (*dev_disable_feat)(struct device *dev, enum iommu_dev_features f);
@ -670,7 +668,6 @@ void iommu_release_device(struct device *dev);
int iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features f);
int iommu_dev_disable_feature(struct device *dev, enum iommu_dev_features f);
bool iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features f);
struct iommu_sva *iommu_sva_bind_device(struct device *dev,
struct mm_struct *mm,
@ -997,12 +994,6 @@ const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
return NULL;
}
static inline bool
iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features feat)
{
return false;
}
static inline int
iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features feat)
{