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由 Christoph Hellwig 提交于
These functions should perform the same cache synchronoization as calling arc_dma_sync_single_for_{cpu,device} in addition to doing any required address translation or mapping [1]. Ensure they actually do that by calling arc_dma_sync_single_for_{cpu,device} instead of passing the dir argument along to _dma_cache_sync. The now unused _dma_cache_sync function is removed as well. [1] in fact various drivers rely on that by passing DMA_ATTR_SKIP_CPU_SYNC to the map/unmap routines and doing the cache synchronization manually. Signed-off-by: NChristoph Hellwig <hch@lst.de> Tested-by: NAlexey Brodkin <abrodkin@synopsys.com> Acked-by: NVineet Gupta <vgupta@synopsys.com>
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