commit: http://blackfin.uclinux.org/git/?p=linux-kernel;a=commitdiff;h=312812c57437a68cfab6abd050cd8b83cbd6a2a1 branch: http://blackfin.uclinux.org/git/?p=linux-kernel;a=shortlog;h=refs/heads/trunk
Otherwise, chained sg list may be missed. Signed-off-by: Sonic Zhang <[email protected]> --- arch/blackfin/kernel/dma-mapping.c | 10 ++++++---- 1 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c index f0d1118..e7be653 100644 --- a/arch/blackfin/kernel/dma-mapping.c +++ b/arch/blackfin/kernel/dma-mapping.c @@ -122,12 +122,13 @@ void __dma_sync(dma_addr_t addr, size_t size, EXPORT_SYMBOL(__dma_sync); int -dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, +dma_map_sg(struct device *dev, struct scatterlist *sg_list, int nents, enum dma_data_direction direction) { + struct scatterlist *sg; int i; - for (i = 0; i < nents; i++, sg++) { + for_each_sg(sg_list, sg, nents, i) { sg->dma_address = (dma_addr_t) sg_virt(sg); __dma_sync(sg_dma_address(sg), sg_dma_len(sg), direction); } @@ -136,12 +137,13 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, } EXPORT_SYMBOL(dma_map_sg); -void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, +void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg_list, int nelems, enum dma_data_direction direction) { + struct scatterlist *sg; int i; - for (i = 0; i < nelems; i++, sg++) { + for_each_sg(sg_list, sg, nelems, i) { sg->dma_address = (dma_addr_t) sg_virt(sg); __dma_sync(sg_dma_address(sg), sg_dma_len(sg), direction); }
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