On Mon, 2018-07-30 at 18:38 +0200, Christoph Hellwig wrote:
> These methods are optional to start with, no need to implement no-op
> versions.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Acked-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> ---
> arch/powerpc/kernel/dma.c | 16 ----------------
> 1 file changed, 16 deletions(-)
>
> diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
> index 511a4972560d..2cfc45acbb52 100644
> --- a/arch/powerpc/kernel/dma.c
> +++ b/arch/powerpc/kernel/dma.c
> @@ -178,12 +178,6 @@ static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl,
> return nents;
> }
>
> -static void dma_nommu_unmap_sg(struct device *dev, struct scatterlist *sg,
> - int nents, enum dma_data_direction direction,
> - unsigned long attrs)
> -{
> -}
> -
> static u64 dma_nommu_get_required_mask(struct device *dev)
> {
> u64 end, mask;
> @@ -209,14 +203,6 @@ static inline dma_addr_t dma_nommu_map_page(struct device *dev,
> return phys_to_dma(dev, page_to_phys(page)) + offset;
> }
>
> -static inline void dma_nommu_unmap_page(struct device *dev,
> - dma_addr_t dma_address,
> - size_t size,
> - enum dma_data_direction direction,
> - unsigned long attrs)
> -{
> -}
> -
> #ifdef CONFIG_NOT_COHERENT_CACHE
> static inline void dma_nommu_sync_sg(struct device *dev,
> struct scatterlist *sgl, int nents,
> @@ -242,10 +228,8 @@ const struct dma_map_ops dma_nommu_ops = {
> .free = dma_nommu_free_coherent,
> .mmap = dma_nommu_mmap_coherent,
> .map_sg = dma_nommu_map_sg,
> - .unmap_sg = dma_nommu_unmap_sg,
> .dma_supported = dma_direct_supported,
> .map_page = dma_nommu_map_page,
> - .unmap_page = dma_nommu_unmap_page,
> .get_required_mask = dma_nommu_get_required_mask,
> #ifdef CONFIG_NOT_COHERENT_CACHE
> .sync_single_for_cpu = dma_nommu_sync_single,
--
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