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-rw-r--r--arch/powerpc/kernel/dma-iommu.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index fb7cbaa37658..8f7abf9baa63 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -105,6 +105,11 @@ static u64 dma_iommu_get_required_mask(struct device *dev)
return mask;
}
+int dma_iommu_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == IOMMU_MAPPING_ERROR;
+}
+
struct dma_map_ops dma_iommu_ops = {
.alloc = dma_iommu_alloc_coherent,
.free = dma_iommu_free_coherent,
@@ -115,5 +120,6 @@ struct dma_map_ops dma_iommu_ops = {
.map_page = dma_iommu_map_page,
.unmap_page = dma_iommu_unmap_page,
.get_required_mask = dma_iommu_get_required_mask,
+ .mapping_error = dma_iommu_mapping_error,
};
EXPORT_SYMBOL(dma_iommu_ops);
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