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iommu: Delete iommu_dev_has_feature()

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Function iommu_dev_has_feature() has never been referenced in the tree,
and there does not appear to be anything coming soon to use it, so delete
it.

Signed-off-by: John Garry <john.garry@huawei.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/1609940111-28563-7-git-send-email-john.garry@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
John Garry 2021-01-06 21:35:11 +08:00 • committed by Joerg Roedel
parent ab0a7119ba
commit 262948f8ba
2 changed files with 0 additions and 18 deletions
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11
drivers/iommu/iommu.c
View file

@ -2853,17 +2853,6 @@ EXPORT_SYMBOL_GPL(iommu_fwspec_add_ids);
/* /*
* Per device IOMMU features. * Per device IOMMU features.
*/ */
bool iommu_dev_has_feature(struct device *dev, enum iommu_dev_features feat)
{
const struct iommu_ops *ops = dev->bus->iommu_ops;
if (ops && ops->dev_has_feat)
return ops->dev_has_feat(dev, feat);
return false;
}
EXPORT_SYMBOL_GPL(iommu_dev_has_feature);
int iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features feat) int iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features feat)
{ {
const struct iommu_ops *ops = dev->bus->iommu_ops; const struct iommu_ops *ops = dev->bus->iommu_ops;

7
include/linux/iommu.h
View file

@ -626,7 +626,6 @@ static inline void dev_iommu_priv_set(struct device *dev, void *priv)
int iommu_probe_device(struct device *dev); int iommu_probe_device(struct device *dev);
void iommu_release_device(struct device *dev); void iommu_release_device(struct device *dev);
bool iommu_dev_has_feature(struct device *dev, enum iommu_dev_features f);
int iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features f); 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); 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); bool iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features f);
@ -975,12 +974,6 @@ const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
return NULL; return NULL;
} }
static inline bool
iommu_dev_has_feature(struct device *dev, enum iommu_dev_features feat)
{
return false;
}
static inline bool static inline bool
iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features feat) iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features feat)
{ {