--- zzzz-none-000/linux-4.1.52/include/asm-generic/io.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/asm-generic/io.h	2022-03-02 11:37:13.000000000 +0000
@@ -825,7 +825,7 @@
 
 #ifndef unxlate_dev_mem_ptr
 #define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
-static inline void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
+static inline void unxlate_dev_mem_ptr(phys_addr_t phys __maybe_unused, void *addr __maybe_unused)
 {
 }
 #endif