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[ARM] dma: Reduce to one dma_sync_sg_* implementation

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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2008-09-25 21:38:41 +01:00
committed by Russell King
parent 01135d92c1
commit 2638b4dbe7
3 changed files with 31 additions and 38 deletions
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10
arch/arm/mm/dma-mapping.c
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@@ -571,7 +571,6 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
}
EXPORT_SYMBOL(dma_unmap_sg);
#ifndef CONFIG_DMABOUNCE
/**
* dma_sync_sg_for_cpu
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
@@ -586,6 +585,10 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int i;
for_each_sg(sg, s, nents, i) {
if (!dmabounce_sync_for_cpu(dev, sg_dma_address(s), 0,
sg_dma_len(s), dir))
continue;
if (!arch_is_coherent())
dma_cache_maint(sg_virt(s), s->length, dir);
}
@@ -606,9 +609,12 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int i;
for_each_sg(sg, s, nents, i) {
if (!dmabounce_sync_for_device(dev, sg_dma_address(s), 0,
sg_dma_len(s), dir))
continue;
if (!arch_is_coherent())
dma_cache_maint(sg_virt(s), s->length, dir);
}
}
EXPORT_SYMBOL(dma_sync_sg_for_device);
#endif