[PATCH] Bugfix to commit 18dabf473e15850c0dbc8ff13ac1e2806d542c15

[Grant Likely <grant.likely@secretlab.ca>]

From: Grant Likely <grant.likely@secretlab.ca>

Fixup for commit 18dabf473e15850c0dbc8ff13ac1e2806d542c15.  Changes to
dma_map_sg where done in asm-x86/dma-mapping_32.h, but were not mirrored
in include/asm-powerpc/dma-mapping.h

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---

Linus, I cannot build an arch/powerpc kernel without this patch.

Cheers,
g.

 include/asm-powerpc/dma-mapping.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/asm-powerpc/dma-mapping.h b/include/asm-powerpc/dma-mapping.h
index 65be95d..fd33ce4 100644
--- a/include/asm-powerpc/dma-mapping.h
+++ b/include/asm-powerpc/dma-mapping.h
@@ -285,9 +285,9 @@ dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
 	BUG_ON(direction == DMA_NONE);
 
 	for_each_sg(sgl, sg, nents, i) {
-		BUG_ON(!sg->page);
+		BUG_ON(!sg_page(sg));
 		__dma_sync_page(sg->page, sg->offset, sg->length, direction);
-		sg->dma_address = page_to_bus(sg->page) + sg->offset;
+		sg->dma_address = sg_phys(sg);
 	}
 
 	return nents;