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dma-mapping: add a kconfig symbol for arch_teardown_dma_ops availability

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
This commit is contained in:
Christoph Hellwig
2018-12-21 22:14:44 +01:00
parent 347cb6af87
commit dc2acded38
6 changed files with 12 additions and 13 deletions
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5
arch/arm64/include/asm/dma-mapping.h
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@@ -29,11 +29,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return NULL;
}
#ifdef CONFIG_IOMMU_DMA
void arch_teardown_dma_ops(struct device *dev);
#define arch_teardown_dma_ops arch_teardown_dma_ops
#endif
/*
* Do not use this function in a driver, it is only provided for
* arch/arm/mm/xen.c, which is used by arm64 as well.