• Christoph Hellwig's avatar
    sh: make dma_cache_sync a no-op · e0c6584d
    Christoph Hellwig authored
    sh does not implement DMA_ATTR_NON_CONSISTENT allocations, so it doesn't
    make any sense to do any work in dma_cache_sync given that it
    must be a no-op when dma_alloc_attrs returns coherent memory.
    
    On the other hand sh uses dma_cache_sync internally in the dma_ops
    implementation and for the maple bus that does not use the DMA API,
    so a the old functionality for dma_cache_sync is still provided under
    the name sh_sync_dma_for_device, and without the redundant dev
    argument.  While at it two of the syncing dma_ops also go the proper
    _for_device postfix.
    Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
    Reviewed-by: default avatarRobin Murphy <robin.murphy@arm.com>
    e0c6584d
consistent.c 3.63 KB