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961729bfc7
The openrisc DMA code supports DMA_ATTR_NON_CONSISTENT allocations, but does not provide a cache_sync operation. This means any user of it will never be able to actually transfer cache ownership and thus cause coherency bugs. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Stafford Horne <shorne@gmail.com>