i386 base does not need it, so it gets an empty function
Signed-off-by: Glauber Costa <[EMAIL PROTECTED]>
---
arch/x86/kernel/pci-base_32.c | 1 +
include/asm-x86/dma-mapping.h | 10 ++++++++++
include/asm-x86/dma-mapping_32.h | 7 -------
include/asm-x86/dma-mapping_64.h | 8 --------
4 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/arch/x86/kernel/pci-base_32.c b/arch/x86/kernel/pci-base_32.c
index b613d73..a8a7c7f 100644
--- a/arch/x86/kernel/pci-base_32.c
+++ b/arch/x86/kernel/pci-base_32.c
@@ -14,6 +14,7 @@ static dma_addr_t pci32_map_single(struct device *dev, void
*ptr,
static const struct dma_mapping_ops pci32_dma_ops = {
.map_single = pci32_map_single,
+ .unmap_single = NULL,
};
const struct dma_mapping_ops *dma_ops = &pci32_dma_ops;
diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index d320244..bb0378f 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -66,4 +66,14 @@ dma_map_single(struct device *hwdev, void *ptr, size_t size,
return dma_ops->map_single(hwdev, ptr, size, direction);
}
+static inline void
+dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
+ int direction)
+{
+ BUG_ON(!valid_dma_direction(direction));
+ if (dma_ops->unmap_single)
+ dma_ops->unmap_single(dev, addr, size, direction);
+}
+
+
#endif
diff --git a/include/asm-x86/dma-mapping_32.h b/include/asm-x86/dma-mapping_32.h
index b496306..0b27cb0 100644
--- a/include/asm-x86/dma-mapping_32.h
+++ b/include/asm-x86/dma-mapping_32.h
@@ -17,13 +17,6 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(!valid_dma_direction(direction));
-}
-
static inline int
dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
enum dma_data_direction direction)
diff --git a/include/asm-x86/dma-mapping_64.h b/include/asm-x86/dma-mapping_64.h
index 969a7da..5d349db 100644
--- a/include/asm-x86/dma-mapping_64.h
+++ b/include/asm-x86/dma-mapping_64.h
@@ -23,14 +23,6 @@ extern void *dma_alloc_coherent(struct device *dev, size_t
size,
extern void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle);
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t addr,size_t size,
- int direction)
-{
- BUG_ON(!valid_dma_direction(direction));
- dma_ops->unmap_single(dev, addr, size, direction);
-}
-
#define dma_map_page(dev,page,offset,size,dir) \
dma_map_single((dev), page_address(page)+(offset), (size), (dir))
--
1.5.0.6
-------------------------------------------------------------------------
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