diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c
index 509a130..876aad2 100644
--- a/drivers/dma/ste_dma40_ll.c
+++ b/drivers/dma/ste_dma40_ll.c
@@ -363,7 +363,7 @@
 
 }
 
-struct d40_log_lli *d40_log_buf_to_lli(struct d40_log_lli *lli_sg,
+static struct d40_log_lli *d40_log_buf_to_lli(struct d40_log_lli *lli_sg,
 				       dma_addr_t addr,
 				       int size,
 				       u32 lcsp13, /* src or dst*/