dma-mapping: consolidate dma_supported

[firefly-linux-kernel-4.4.55.git] / arch / s390 / include / asm / dma-mapping.h

diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 3c293291319bc8d4de3a497857038d4d3dc571a5..1f42489797da2aeffc5eb9152f40b565996cd2cd 100644 (file)
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -27,15 +27,6 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 
 #include <asm-generic/dma-mapping-common.h>
 
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       if (dma_ops->dma_supported == NULL)
-               return 1;
-       return dma_ops->dma_supported(dev, mask);
-}
-
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
        if (!dev->dma_mask)