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Commit a7229c6d authored by Patrick Daly's avatar Patrick Daly
Browse files

iommu: dma-mapping-fast: Remove unused function 



Remove fast_smmu_release_mapping as it is no longer used.
iova_cookie lifetime is tied to the iommu_domain lifetime
instead.

Change-Id: Ib0b7055e1f2b953f90015d4e9d370de2c03a18e0
Signed-off-by: default avatarPatrick Daly <pdaly@codeaurora.org>
parent 5b37e7ec

drivers/iommu/dma-mapping-fast.c

+0 −16
Original line number Diff line number Diff line
@@ -1025,19 +1025,3 @@ int fast_smmu_init_mapping(struct device *dev, 
	fast_smmu_put_dma_cookie(domain);

	return err;

}
 


/**

 * fast_smmu_release_mapping

 * @kref: dma_iommu_mapping->kref

 *

 * Cleans up the given iommu mapping.

 */

void fast_smmu_release_mapping(struct kref *kref)

{

	struct dma_iommu_mapping *mapping =

		container_of(kref, struct dma_iommu_mapping, kref);



	fast_smmu_put_dma_cookie(mapping->domain);

	iommu_domain_free(mapping->domain);

	kfree(mapping);

}

include/linux/dma-mapping-fast.h

+0 −4
Original line number Diff line number Diff line
@@ -41,7 +41,6 @@ struct dma_fast_smmu_mapping { 
#ifdef CONFIG_IOMMU_IO_PGTABLE_FAST

int fast_smmu_init_mapping(struct device *dev,

			    struct dma_iommu_mapping *mapping);

void fast_smmu_release_mapping(struct kref *kref);

void fast_smmu_put_dma_cookie(struct iommu_domain *domain);

#else

static inline int fast_smmu_init_mapping(struct device *dev,
@@ -50,9 +49,6 @@ static inline int fast_smmu_init_mapping(struct device *dev, 
	return -ENODEV;

}



static inline void fast_smmu_release_mapping(struct kref *kref)

{

}

static inline void fast_smmu_put_dma_cookie(struct iommu_domain *domain) {}

#endif