2018-04-26 14:42 GMT+08:00 Christoph Hellwig <hch@xxxxxx>:
Can you try this patch ontop of either the new or original one?
---
diff --git a/lib/dma-noncoherent.c b/lib/dma-noncoherent.c
index f4b8532c20ac..a2c192b3508d 100644
--- a/lib/dma-noncoherent.c
+++ b/lib/dma-noncoherent.c
@@ -48,7 +48,7 @@ static int dma_noncoherent_map_sg(struct device *dev, struct scatterlist *sgl,
return nents;
}
-#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
static void dma_noncoherent_sync_single_for_cpu(struct device *dev,
dma_addr_t addr, size_t size, enum dma_data_direction dir)
{
@@ -88,7 +88,7 @@ const struct dma_map_ops dma_noncoherent_ops = {
.sync_sg_for_device = dma_noncoherent_sync_sg_for_device,
.map_page = dma_noncoherent_map_page,
.map_sg = dma_noncoherent_map_sg,
-#ifdef CONFIG_DMA_NONCOHERENT_SYNC_FOR_CPU
+#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
.sync_single_for_cpu = dma_noncoherent_sync_single_for_cpu,
.sync_sg_for_cpu = dma_noncoherent_sync_sg_for_cpu,
.unmap_page = dma_noncoherent_unmap_page,
It works!!!
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