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[08/31] c6x: handle page-less SG entries

Message ID 1439363150-8661-9-git-send-email-hch@lst.de (mailing list archive)
State Awaiting Upstream
Headers show

Commit Message

Christoph Hellwig Aug. 12, 2015, 7:05 a.m. UTC
Use sg_phys() instead of virt_to_phys(sg_virt(sg)) so that we don't
require a kernel virtual address.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/c6x/kernel/dma.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index ab7b12d..79cae03 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -68,8 +68,7 @@  int dma_map_sg(struct device *dev, struct scatterlist *sglist,
 	int i;
 
 	for_each_sg(sglist, sg, nents, i)
-		sg->dma_address = dma_map_single(dev, sg_virt(sg), sg->length,
-						 dir);
+		sg->dma_address = sg_phys(sg);
 
 	debug_dma_map_sg(dev, sglist, nents, nents, dir);