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authorHeiko Carstens <heiko.carstens@de.ibm.com>2013-01-30 14:16:02 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-02-14 15:55:11 +0100
commite978948db125cc3b90cc324c68e7787f0ac7be4a (patch)
tree399252c9679290a7726c284e2b940ab7170b0372 /arch/s390/include
parente06ef372839c0c33f5f91f892ae632cef38cd259 (diff)
s390/dma: provide dma_cache_sync() function
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>
Diffstat (limited to 'arch/s390/include')
-rw-r--r--arch/s390/include/asm/dma-mapping.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 8a32f7dfd3a..e74bc7ac72e 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -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)