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s390/dma: provide dma_cache_sync() function

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Provide empty dma_cache_sync() function.

Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2013-01-30 14:16:02 +01:00 committed by Martin Schwidefsky
parent e06ef37283
commit e978948db1
1 changed files with 5 additions and 2 deletions
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7
arch/s390/include/asm/dma-mapping.h
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@ -20,8 +20,11 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
extern int dma_set_mask(struct device *dev, u64 mask);
extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle);
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)
{
}
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)