--- zzzz-none-000/linux-3.10.107/arch/mips/include/asm/dma-mapping.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/arch/mips/include/asm/dma-mapping.h	2021-11-10 11:53:53.000000000 +0000
@@ -28,7 +28,8 @@
 	return addr + size <= *dev->dma_mask;
 }
 
-static inline void dma_mark_clean(void *addr, size_t size) {}
+static inline void dma_mark_clean(void *addr __maybe_unused,
+				  size_t size __maybe_unused) {}
 
 #include <asm-generic/dma-mapping-common.h>