[44/44] powerpc: merge __dma_set_mask into dma_set_mask

Commit Message

Christoph Hellwig June 16, 2017, 6:10 p.m. UTC

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

Patch

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);