1 files changed, 2 insertions, 0 deletions

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 15954b86f09e..47aeb04c1997 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -692,6 +692,7 @@ void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr,
         }
 }
 
+#ifdef CONFIG_DMA_DIRECT_OPS
 static inline bool dma_coherent_ok(struct device *dev, dma_addr_t addr,
                 size_t size)
 {
@@ -763,6 +764,7 @@ static bool swiotlb_free_buffer(struct device *dev, size_t size,
                                  DMA_ATTR_SKIP_CPU_SYNC);
         return true;
 }
+#endif
 
 static void
 swiotlb_full(struct device *dev, size_t size, enum dma_data_direction dir,