On Apr 20, 2009, at 11:26 AM, Becky Bruce wrote:
Currently, the 32-bit code uses sg->length instead of sg->dma_lentgh
to report sg_dma_len. However, since the default dma code for 32-bit
(the dma_direct case) sets dma_length and length to the same thing,
we should be able to use dma_length there as well. This gets rid of
some 32-vs-64-bit ifdefs, and is needed by the swiotlb code which
actually distinguishes between dma_length and length.
Signed-off-by: Becky Bruce <bec...@kernel.crashing.org>
---
arch/powerpc/include/asm/scatterlist.h | 6 +-----
1 files changed, 1 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/scatterlist.h b/arch/powerpc/
include/asm/scatterlist.h
index fcf7d55..912bf59 100644
--- a/arch/powerpc/include/asm/scatterlist.h
+++ b/arch/powerpc/include/asm/scatterlist.h
@@ -21,7 +21,7 @@ struct scatterlist {
unsigned int offset;
unsigned int length;
can we get rid of length?
- /* For TCE support */
+ /* For TCE or SWIOTLB support */
dma_addr_t dma_address;
u32 dma_length;
};
@@ -34,11 +34,7 @@ struct scatterlist {
* is 0.
*/
#define sg_dma_address(sg) ((sg)->dma_address)
-#ifdef __powerpc64__
#define sg_dma_len(sg) ((sg)->dma_length)
-#else
-#define sg_dma_len(sg) ((sg)->length)
-#endif
#ifdef __powerpc64__
#define ISA_DMA_THRESHOLD (~0UL)
--
1.6.0.6
- k
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