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dma-mapping: remove the set_dma_mask method

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Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2017-06-05 17:05:25 +02:00
parent 7eb8a7a9e8
commit 8cc9c26029
2 changed files with 0 additions and 10 deletions
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4
arch/powerpc/kernel/dma.c
View File

@ -316,10 +316,6 @@ EXPORT_SYMBOL(dma_set_coherent_mask);
int __dma_set_mask(struct device *dev, u64 dma_mask)
{
const struct dma_map_ops *dma_ops = get_dma_ops(dev);
if ((dma_ops != NULL) && (dma_ops->set_dma_mask != NULL))
return dma_ops->set_dma_mask(dev, dma_mask);
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;
*dev->dma_mask = dma_mask;

6
include/linux/dma-mapping.h
View File

@ -127,7 +127,6 @@ struct dma_map_ops {
enum dma_data_direction dir);
int (*mapping_error)(struct device *dev, dma_addr_t dma_addr);
int (*dma_supported)(struct device *dev, u64 mask);
int (*set_dma_mask)(struct device *dev, u64 mask);
#ifdef ARCH_HAS_DMA_GET_REQUIRED_MASK
u64 (*get_required_mask)(struct device *dev);
#endif
@ -563,11 +562,6 @@ static inline int dma_supported(struct device *dev, u64 mask)
#ifndef HAVE_ARCH_DMA_SET_MASK
static inline int dma_set_mask(struct device *dev, u64 mask)
{
const struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, mask);
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;