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dma-mapping: remove dma_{alloc,free,mmap}_writecombine

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We can already use DMA_ATTR_WRITE_COMBINE or the _wc prefixed version,
so remove the third way of doing things.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Christoph Hellwig
2019-07-26 08:58:36 +02:00
parent 62fcee9a3b
commit 212836a992
2 changed files with 5 additions and 15 deletions
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9
include/linux/dma-mapping.h
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@@ -796,9 +796,6 @@ static inline void *dma_alloc_wc(struct device *dev, size_t size,
return dma_alloc_attrs(dev, size, dma_addr, gfp, attrs);
}
#ifndef dma_alloc_writecombine
#define dma_alloc_writecombine dma_alloc_wc
#endif
static inline void dma_free_wc(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_addr)
@@ -806,9 +803,6 @@ static inline void dma_free_wc(struct device *dev, size_t size,
return dma_free_attrs(dev, size, cpu_addr, dma_addr,
DMA_ATTR_WRITE_COMBINE);
}
#ifndef dma_free_writecombine
#define dma_free_writecombine dma_free_wc
#endif
static inline int dma_mmap_wc(struct device *dev,
struct vm_area_struct *vma,
@@ -818,9 +812,6 @@ static inline int dma_mmap_wc(struct device *dev,
return dma_mmap_attrs(dev, vma, cpu_addr, dma_addr, size,
DMA_ATTR_WRITE_COMBINE);
}
#ifndef dma_mmap_writecombine
#define dma_mmap_writecombine dma_mmap_wc
#endif
#ifdef CONFIG_NEED_DMA_MAP_STATE
#define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME