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| author | Christoph Hellwig <hch@lst.de> | 2017-08-25 17:13:09 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2017-09-01 11:59:17 +0200 |
| commit | 2436bdcda53ff4abb7897c87fa29ef3de8055344 (patch) | |
| tree | aa9204da61d1e888fea12ac09c948f5d77e793c5 /include/linux/dma-mapping.h | |
| parent | b32dbc1e0bf0eaa8bdd725491b361d5fc2f57a85 (diff) | |
| download | linux-0-day-2436bdcda53ff4abb7897c87fa29ef3de8055344.tar.gz linux-0-day-2436bdcda53ff4abb7897c87fa29ef3de8055344.tar.xz | |
dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags
DMA_MEMORY_IO was never used in the tree, so remove it. That means there is
no need for the DMA_MEMORY_MAP flag either now, so remove it as well and
change dma_declare_coherent_memory to return a normal errno value.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index abf369b11f546..b7dd11c02a459 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -694,9 +694,7 @@ static inline int dma_get_cache_alignment(void) #endif /* flags for the coherent memory api */ -#define DMA_MEMORY_MAP 0x01 -#define DMA_MEMORY_IO 0x02 -#define DMA_MEMORY_EXCLUSIVE 0x04 +#define DMA_MEMORY_EXCLUSIVE 0x01 #ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr, @@ -709,7 +707,7 @@ 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) { - return 0; + return -ENOSYS; } static inline void |