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| author | Christoph Hellwig <hch@lst.de> | 2018-11-21 18:56:25 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-12-06 06:56:38 -0800 |
| commit | d11e3d3d03360cd49497c837490576f793baf746 (patch) | |
| tree | ae98b833e1b5a95e1ae662d4fdbc116bd2e3799f /arch/powerpc/kernel/dma-iommu.c | |
| parent | 72fd97bf4e75e37552640614a0ea98897fc1dd77 (diff) | |
| download | linux-d11e3d3d03360cd49497c837490576f793baf746.tar.bz2 | |
powerpc/iommu: remove the mapping_error dma_map_ops method
The powerpc iommu code already returns (~(dma_addr_t)0x0) on mapping
failures, so we can switch over to returning DMA_MAPPING_ERROR and let
the core dma-mapping code handle the rest.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/kernel/dma-iommu.c')
| -rw-r--r-- | arch/powerpc/kernel/dma-iommu.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index f9fe2080ceb9..5ebacf0fe41a 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -106,11 +106,6 @@ static u64 dma_iommu_get_required_mask(struct device *dev) return mask; } -int dma_iommu_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return dma_addr == IOMMU_MAPPING_ERROR; -} - struct dma_map_ops dma_iommu_ops = { .alloc = dma_iommu_alloc_coherent, .free = dma_iommu_free_coherent, @@ -121,6 +116,5 @@ struct dma_map_ops dma_iommu_ops = { .map_page = dma_iommu_map_page, .unmap_page = dma_iommu_unmap_page, .get_required_mask = dma_iommu_get_required_mask, - .mapping_error = dma_iommu_mapping_error, }; EXPORT_SYMBOL(dma_iommu_ops); |