[PATCH 1/1 net-next] net: rds: use for_each_sg() for scatterlist parsing
From: Fabian Frederick <hidden>
Date: 2015-06-15 17:13:17
This patch also renames sg to sglist and aligns function parameters. See Documentation/DMA-API.txt - Part Id for scatterlist details Signed-off-by: Fabian Frederick <redacted> --- This is untested. net/rds/ib.h | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/net/rds/ib.h b/net/rds/ib.h
index c36d713..01d8072 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h@@ -235,28 +235,34 @@ extern struct workqueue_struct *rds_ib_wq; * doesn't define it. */ static inline void rds_ib_dma_sync_sg_for_cpu(struct ib_device *dev, - struct scatterlist *sg, unsigned int sg_dma_len, int direction) + struct scatterlist *sglist, + unsigned int sg_dma_len, + int direction) { unsigned int i; + struct scatterlist *sg; - for (i = 0; i < sg_dma_len; ++i) { + for_each_sg(sglist, sg, sg_dma_len, i) { ib_dma_sync_single_for_cpu(dev, - ib_sg_dma_address(dev, &sg[i]), - ib_sg_dma_len(dev, &sg[i]), + ib_sg_dma_address(dev, sg), + ib_sg_dma_len(dev, sg), direction); } } #define ib_dma_sync_sg_for_cpu rds_ib_dma_sync_sg_for_cpu static inline void rds_ib_dma_sync_sg_for_device(struct ib_device *dev, - struct scatterlist *sg, unsigned int sg_dma_len, int direction) + struct scatterlist *sglist, + unsigned int sg_dma_len, + int direction) { unsigned int i; + struct scatterlist *sg; - for (i = 0; i < sg_dma_len; ++i) { + for_each_sg(sglist, sg, sg_dma_len, i) { ib_dma_sync_single_for_device(dev, - ib_sg_dma_address(dev, &sg[i]), - ib_sg_dma_len(dev, &sg[i]), + ib_sg_dma_address(dev, sg), + ib_sg_dma_len(dev, sg), direction); } }
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2.4.2