diff options
| author | Logan Gunthorpe <logang@deltatee.com> | 2021-07-29 14:15:21 -0600 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-08-09 17:13:04 +0200 |
| commit | ad8f36e4b6b1c826a0daa5fda2c5839205b5aa8b (patch) | |
| tree | 103f7a59b05f9a574f088317222e88ee2dedda1a /include/linux/iommu.h | |
| parent | c81be74e7d790f090d3c8a52e20a334dc2506a3f (diff) | |
iommu: return full error code from iommu_map_sg[_atomic]()
Convert to ssize_t return code so the return code from __iommu_map()
can be returned all the way down through dma_iommu_map_sg().
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 32d448050bf7..9369458ba1bd 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -414,11 +414,11 @@ extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, extern size_t iommu_unmap_fast(struct iommu_domain *domain, unsigned long iova, size_t size, struct iommu_iotlb_gather *iotlb_gather); -extern size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova, - struct scatterlist *sg,unsigned int nents, int prot); -extern size_t iommu_map_sg_atomic(struct iommu_domain *domain, - unsigned long iova, struct scatterlist *sg, - unsigned int nents, int prot); +extern ssize_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova, + struct scatterlist *sg, unsigned int nents, int prot); +extern ssize_t iommu_map_sg_atomic(struct iommu_domain *domain, + unsigned long iova, struct scatterlist *sg, + unsigned int nents, int prot); extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova); extern void iommu_set_fault_handler(struct iommu_domain *domain, iommu_fault_handler_t handler, void *token); @@ -679,18 +679,18 @@ static inline size_t iommu_unmap_fast(struct iommu_domain *domain, return 0; } -static inline size_t iommu_map_sg(struct iommu_domain *domain, - unsigned long iova, struct scatterlist *sg, - unsigned int nents, int prot) +static inline ssize_t iommu_map_sg(struct iommu_domain *domain, + unsigned long iova, struct scatterlist *sg, + unsigned int nents, int prot) { - return 0; + return -ENODEV; } -static inline size_t iommu_map_sg_atomic(struct iommu_domain *domain, +static inline ssize_t iommu_map_sg_atomic(struct iommu_domain *domain, unsigned long iova, struct scatterlist *sg, unsigned int nents, int prot) { - return 0; + return -ENODEV; } static inline void iommu_flush_iotlb_all(struct iommu_domain *domain) |