1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 4bc43e535d3b..e4dd0646e859 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -523,6 +523,12 @@ void ___dma_page_dev_to_cpu(struct page *page, unsigned long off,
                 outer_inv_range(paddr, paddr + size);
 
         dma_cache_maint_page(page, off, size, dir, dmac_unmap_area);
+
+        /*
+         * Mark the D-cache clean for this page to avoid extra flushing.
+         */
+        if (dir != DMA_TO_DEVICE && off == 0 && size >= PAGE_SIZE)
+                set_bit(PG_dcache_clean, &page->flags);
 }
 EXPORT_SYMBOL(___dma_page_dev_to_cpu);