[Xen-devel] [PATCH 44/44] powerpc: merge __dma_set_mask into dma_set_mask

[Christoph Hellwig <hch@xxxxxx>]

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 arch/powerpc/include/asm/dma-mapping.h |  1 -
 arch/powerpc/kernel/dma.c              | 13 ++++---------
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h 
b/arch/powerpc/include/asm/dma-mapping.h
index 73aedbe6c977..eaece3d3e225 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -112,7 +112,6 @@ static inline void set_dma_offset(struct device *dev, 
dma_addr_t off)
 #define HAVE_ARCH_DMA_SET_MASK 1
 extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
-extern int __dma_set_mask(struct device *dev, u64 dma_mask);
 extern u64 __dma_get_required_mask(struct device *dev);
 
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t 
size)
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 466c9f07b288..4194bbbbdb10 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -314,14 +314,6 @@ EXPORT_SYMBOL(dma_set_coherent_mask);
 
 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
 
-int __dma_set_mask(struct device *dev, u64 dma_mask)
-{
-       if (!dev->dma_mask || !dma_supported(dev, dma_mask))
-               return -EIO;
-       *dev->dma_mask = dma_mask;
-       return 0;
-}
-
 int dma_set_mask(struct device *dev, u64 dma_mask)
 {
        if (ppc_md.dma_set_mask)
@@ -334,7 +326,10 @@ int dma_set_mask(struct device *dev, u64 dma_mask)
                        return phb->controller_ops.dma_set_mask(pdev, dma_mask);
        }
 
-       return __dma_set_mask(dev, dma_mask);
+       if (!dev->dma_mask || !dma_supported(dev, dma_mask))
+               return -EIO;
+       *dev->dma_mask = dma_mask;
+       return 0;
 }
 EXPORT_SYMBOL(dma_set_mask);
 
-- 
2.11.0


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