diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-08-24 10:29:02 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-09-08 11:19:38 +0200 |
| commit | 46053c73685411915d3de50c5a0045beef32806b (patch) | |
| tree | 818a65233a9a95164ccfcfd46a22d05dfcc72f4f | |
| parent | dc3c05504d38849f77149cb962caeaedd1efa127 (diff) | |
dma-mapping: clear dev->dma_ops in arch_teardown_dma_ops
There is no reason to leave the per-device dma_ops around when
deconfiguring a device, so move this code from arm64 into the
common code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
| -rw-r--r-- | arch/arm64/include/asm/dma-mapping.h | 5 | ||||
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 5 | ||||
| -rw-r--r-- | include/linux/dma-mapping.h | 5 |
3 files changed, 4 insertions, 11 deletions
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index b7847eb8a7bb..0a2d13332545 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -39,11 +39,6 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, const struct iommu_ops *iommu, bool coherent); #define arch_setup_dma_ops arch_setup_dma_ops -#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 */ static inline bool is_device_dma_coherent(struct device *dev) { diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 072c51fb07d7..cdcb73db9ea2 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -862,11 +862,6 @@ out_err: dev_name(dev)); } -void arch_teardown_dma_ops(struct device *dev) -{ - dev->dma_ops = NULL; -} - #else static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 1423b69f3cc9..eafd6f318e78 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -664,7 +664,10 @@ static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, #endif #ifndef arch_teardown_dma_ops -static inline void arch_teardown_dma_ops(struct device *dev) { } +static inline void arch_teardown_dma_ops(struct device *dev) +{ + dev->dma_ops = NULL; +} #endif static inline unsigned int dma_get_max_seg_size(struct device *dev) |