i386 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 | 9 +++++++++
include/asm-x86/dma-mapping_32.h | 8 --------
include/asm-x86/dma-mapping_64.h | 8 --------
4 files changed, 10 insertions(+), 16 deletions(-)
diff --git a/arch/x86/kernel/pci-base_32.c b/arch/x86/kernel/pci-base_32.c
index 2474152..9205304 100644
--- a/arch/x86/kernel/pci-base_32.c
+++ b/arch/x86/kernel/pci-base_32.c
@@ -34,6 +34,7 @@ static const struct dma_mapping_ops pci32_dma_ops = {
.map_single = pci32_map_single,
.unmap_single = NULL,
.map_sg = pci32_dma_map_sg,
+ .unmap_sg = 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 0901154..6e7747a 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -82,4 +82,13 @@ dma_map_sg(struct device *hwdev, struct scatterlist *sg,
BUG_ON(!valid_dma_direction(direction));
return dma_ops->map_sg(hwdev, sg, nents, direction);
}
+
+static inline void
+dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
+ int direction)
+{
+ BUG_ON(!valid_dma_direction(direction));
+ if (dma_ops->unmap_sg)
+ dma_ops->unmap_sg(hwdev, sg, nents, direction);
+}
#endif
diff --git a/include/asm-x86/dma-mapping_32.h b/include/asm-x86/dma-mapping_32.h
index cdcdeff..55445e3 100644
--- a/include/asm-x86/dma-mapping_32.h
+++ b/include/asm-x86/dma-mapping_32.h
@@ -32,14 +32,6 @@ dma_unmap_page(struct device *dev, dma_addr_t dma_address,
size_t size,
BUG_ON(!valid_dma_direction(direction));
}
-
-static inline void
-dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
- enum dma_data_direction direction)
-{
- BUG_ON(!valid_dma_direction(direction));
-}
-
static inline void
dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)
diff --git a/include/asm-x86/dma-mapping_64.h b/include/asm-x86/dma-mapping_64.h
index b27527a..ce37efb 100644
--- a/include/asm-x86/dma-mapping_64.h
+++ b/include/asm-x86/dma-mapping_64.h
@@ -96,14 +96,6 @@ dma_sync_sg_for_device(struct device *hwdev, struct
scatterlist *sg,
flush_write_buffers();
}
-static inline void
-dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
- int direction)
-{
- BUG_ON(!valid_dma_direction(direction));
- dma_ops->unmap_sg(hwdev, sg, nents, direction);
-}
-
extern int dma_supported(struct device *hwdev, u64 mask);
/* same for gart, swiotlb, and nommu */
--
1.5.0.6
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