--- zzzz-none-000/linux-4.4.60/arch/arm64/include/asm/system_misc.h	2017-04-08 07:53:53.000000000 +0000
+++ hawkeye-5590-729/linux-4.4.60/arch/arm64/include/asm/system_misc.h	2022-03-30 14:21:51.000000000 +0000
@@ -44,6 +44,7 @@
 extern void __show_regs(struct pt_regs *);
 
 extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
+extern char* (*arch_read_hardware_id)(void);
 
 #define show_unhandled_signals_ratelimited()				\
 ({									\
@@ -62,6 +63,7 @@
 #define UDBG_SEGV	(1 << 3)
 #define UDBG_BUS	(1 << 4)
 
+
 #endif	/* __ASSEMBLY__ */
 
 #endif	/* __ASM_SYSTEM_MISC_H */