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net: rds: use for_each_sg() for scatterlist parsing

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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 <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Fabian Frederick 2015-06-16 20:44:07 +02:00 committed by David S. Miller
parent 59f211181b
commit d2a9ec6472
1 changed files with 14 additions and 8 deletions
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22
net/rds/ib.h
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@ -235,28 +235,34 @@ extern struct workqueue_struct *rds_ib_wq;
* doesn't define it. * doesn't define it.
*/ */
static inline void rds_ib_dma_sync_sg_for_cpu(struct ib_device *dev, 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)
{ {
struct scatterlist *sg;
unsigned int i; unsigned int i;
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_dma_sync_single_for_cpu(dev,
ib_sg_dma_address(dev, &sg[i]), ib_sg_dma_address(dev, sg),
ib_sg_dma_len(dev, &sg[i]), ib_sg_dma_len(dev, sg),
direction); direction);
} }
} }
#define ib_dma_sync_sg_for_cpu rds_ib_dma_sync_sg_for_cpu #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, 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)
{ {
struct scatterlist *sg;
unsigned int i; unsigned int i;
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_dma_sync_single_for_device(dev,
ib_sg_dma_address(dev, &sg[i]), ib_sg_dma_address(dev, sg),
ib_sg_dma_len(dev, &sg[i]), ib_sg_dma_len(dev, sg),
direction); direction);
} }
} }