diff options
| author |   Christoph Hellwig <hch@lst.de> | 2018-08-24 09:47:20 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-09-08 11:19:10 +0200 |
| commit | 58643a3a8097e93b1c965d0ad3f0d65613b95b2c (patch) | |
| tree | baa7de294980a1d6ee8c8915f7c41176c65cb149 /arch | |
| parent | hexagon: use generic dma_noncoherent_ops (diff) | |
| download | linux-dev-58643a3a8097e93b1c965d0ad3f0d65613b95b2c.tar.xz linux-dev-58643a3a8097e93b1c965d0ad3f0d65613b95b2c.zip | |
arm-nommu: don't define arch_teardown_dma_ops
We can just use the default implementation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 2 | ||||
| -rw-r--r-- | arch/arm/mm/dma-mapping-nommu.c | 4 |
2 files changed, 2 insertions, 4 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 8436f6ade57d..965b7c846ecb 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -100,8 +100,10 @@ static inline unsigned long dma_max_pfn(struct device *dev) extern void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, const struct iommu_ops *iommu, bool coherent); +#ifdef CONFIG_MMU #define arch_teardown_dma_ops arch_teardown_dma_ops extern void arch_teardown_dma_ops(struct device *dev); +#endif /* do not use this function in a driver */ static inline bool is_device_dma_coherent(struct device *dev) diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c index f448a0663b10..aa7aba302e76 100644 --- a/arch/arm/mm/dma-mapping-nommu.c +++ b/arch/arm/mm/dma-mapping-nommu.c @@ -237,7 +237,3 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, set_dma_ops(dev, dma_ops); } - -void arch_teardown_dma_ops(struct device *dev) -{ -} |