These methods are optional to start with, no need to implement no-op
versions.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
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,
--
2.18.0
