--- zzzz-none-000/linux-4.4.60/arch/arm/include/asm/device.h	2017-04-08 07:53:53.000000000 +0000
+++ jet-2400-727/linux-4.4.60/arch/arm/include/asm/device.h	2021-03-17 14:36:41.000000000 +0000
@@ -7,7 +7,7 @@
 #define ASMARM_DEVICE_H
 
 struct dev_archdata {
-	struct dma_map_ops	*dma_ops;
+	const struct dma_map_ops	*dma_ops;
 #ifdef CONFIG_DMABOUNCE
 	struct dmabounce_device_info *dmabounce;
 #endif