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-rw-r--r--arch/sh/kernel/dma-nommu.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index b336fcf40f1..3c55b87f8b6 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -44,6 +44,7 @@ static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
return nents;
}
+#ifdef CONFIG_DMA_NONCOHERENT
static void nommu_sync_single(struct device *dev, dma_addr_t addr,
size_t size, enum dma_data_direction dir)
{
@@ -59,14 +60,17 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg,
for_each_sg(sg, s, nelems, i)
dma_cache_sync(dev, sg_virt(s), s->length, dir);
}
+#endif
struct dma_map_ops nommu_dma_ops = {
.alloc_coherent = dma_generic_alloc_coherent,
.free_coherent = dma_generic_free_coherent,
.map_page = nommu_map_page,
.map_sg = nommu_map_sg,
+#ifdef CONFIG_DMA_NONCOHERENT
.sync_single_for_device = nommu_sync_single,
.sync_sg_for_device = nommu_sync_sg,
+#endif
.is_phys = 1,
};