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arc: fix arc_dma_sync_sg_for_{cpu,device}

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These functions should perform the same functionality as calling
arc_dma_sync_single_for_{cpu,device} on each S/G list element.  Ensure
they actually do that by calling arc_dma_sync_single_for_{cpu,device}.
Otherwise we could be passing a different dir argument.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Christoph Hellwig 2018-05-18 15:16:45 +02:00
parent 713a74624b
commit b591741072
1 changed files with 3 additions and 2 deletions
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5
arch/arc/mm/dma.c
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@ -241,7 +241,7 @@ static void arc_dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sg;
for_each_sg(sglist, sg, nelems, i)
_dma_cache_sync(sg_phys(sg), sg->length, dir);
arc_dma_sync_single_for_cpu(dev, sg_phys(sg), sg->length, dir);
}
static void arc_dma_sync_sg_for_device(struct device *dev,
@ -252,7 +252,8 @@ static void arc_dma_sync_sg_for_device(struct device *dev,
struct scatterlist *sg;
for_each_sg(sglist, sg, nelems, i)
_dma_cache_sync(sg_phys(sg), sg->length, dir);
arc_dma_sync_single_for_device(dev, sg_phys(sg), sg->length,
dir);
}
static int arc_dma_supported(struct device *dev, u64 dma_mask)