--- zzzz-none-000/linux-2.6.39.4/arch/x86/include/asm/dma-mapping.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-arm-6490-729/linux-2.6.39.4/arch/x86/include/asm/dma-mapping.h	2021-11-10 13:23:10.000000000 +0000
@@ -28,7 +28,7 @@
 
 extern struct dma_map_ops *dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev __attribute__((unused)))
 {
 #ifdef CONFIG_X86_32
 	return dma_ops;
@@ -69,19 +69,19 @@
 	return addr + size - 1 <= *dev->dma_mask;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t phys_to_dma(struct device *dev __attribute__((unused)), phys_addr_t paddr)
 {
 	return paddr;
 }
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t dma_to_phys(struct device *dev __attribute__((unused)), dma_addr_t daddr)
 {
 	return daddr;
 }
 
 static inline void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-	enum dma_data_direction dir)
+dma_cache_sync(struct device *dev __attribute__((unused)), void *vaddr __attribute__((unused)), size_t size __attribute__((unused)),
+	enum dma_data_direction dir __attribute__((unused)))
 {
 	flush_write_buffers();
 }