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dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag

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All users of dma_declare_coherent want their allocations to be
exclusive, so default to exclusive allocations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christoph Hellwig
2018-12-25 13:29:54 +01:00
parent 91a6fda95c
commit 82c5de0ab8
14 changed files with 29 additions and 65 deletions
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7
include/linux/dma-mapping.h
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@@ -736,17 +736,14 @@ static inline int dma_get_cache_alignment(void)
return 1;
}
/* flags for the coherent memory api */
#define DMA_MEMORY_EXCLUSIVE 0x01
#ifdef CONFIG_DMA_DECLARE_COHERENT
int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size, int flags);
dma_addr_t device_addr, size_t size);
void dma_release_declared_memory(struct device *dev);
#else
static inline int
dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size, int flags)
dma_addr_t device_addr, size_t size)
{
return -ENOSYS;
}