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-rw-r--r--arch/x86/include/asm/dma-mapping.h2
-rw-r--r--arch/x86/kernel/pci-dma.c11
2 files changed, 0 insertions, 13 deletions
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index b1fbf582048b..953b7263f844 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -48,8 +48,6 @@ extern int dma_supported(struct device *hwdev, u64 mask);
#include <asm-generic/dma-mapping-common.h>
-extern int dma_set_mask(struct device *dev, u64 mask);
-
extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t flag,
struct dma_attrs *attrs);
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index bd23971e8f1d..84b8ef82a159 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -58,17 +58,6 @@ EXPORT_SYMBOL(x86_dma_fallback_dev);
/* Number of entries preallocated for DMA-API debugging */
#define PREALLOC_DMA_DEBUG_ENTRIES 65536
-int dma_set_mask(struct device *dev, u64 mask)
-{
- if (!dev->dma_mask || !dma_supported(dev, mask))
- return -EIO;
-
- *dev->dma_mask = mask;
-
- return 0;
-}
-EXPORT_SYMBOL(dma_set_mask);
-
void __init pci_iommu_alloc(void)
{
struct iommu_table_entry *p;
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