1 files changed, 2 insertions, 2 deletions

diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 852a3291db96..9df997995f6b 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -415,7 +415,7 @@ static void dma_4u_unmap_page(struct device *dev, dma_addr_t bus_addr,
                 ctx = (iopte_val(*base) & IOPTE_CONTEXT) >> 47UL;
 
         /* Step 1: Kick data out of streaming buffers if necessary. */
-        if (strbuf->strbuf_enabled)
+        if (strbuf->strbuf_enabled && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
                 strbuf_flush(strbuf, iommu, bus_addr, ctx,
                              npages, direction);
 
@@ -640,7 +640,7 @@ static void dma_4u_unmap_sg(struct device *dev, struct scatterlist *sglist,
                 base = iommu->page_table + entry;
 
                 dma_handle &= IO_PAGE_MASK;
-                if (strbuf->strbuf_enabled)
+                if (strbuf->strbuf_enabled && !(attrs & DMA_ATTR_SKIP_CPU_SYNC))
                         strbuf_flush(strbuf, iommu, dma_handle, ctx,
                                      npages, direction);