--- zzzz-none-000/linux-3.10.107/arch/arm64/include/asm/system_misc.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm64/include/asm/system_misc.h	2021-02-04 17:41:59.000000000 +0000
@@ -23,6 +23,9 @@
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 #include <linux/irqflags.h>
+#include <linux/signal.h>
+#include <linux/ratelimit.h>
+#include <linux/reboot.h>
 
 struct pt_regs;
 
@@ -40,8 +43,18 @@
 extern void show_pte(struct mm_struct *mm, unsigned long addr);
 extern void __show_regs(struct pt_regs *);
 
-void soft_restart(unsigned long);
-extern void (*arm_pm_restart)(char str, const char *cmd);
+extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
+
+#define show_unhandled_signals_ratelimited()				\
+({									\
+	static DEFINE_RATELIMIT_STATE(_rs,				\
+				      DEFAULT_RATELIMIT_INTERVAL,	\
+				      DEFAULT_RATELIMIT_BURST);		\
+	bool __show_ratelimited = false;				\
+	if (show_unhandled_signals && __ratelimit(&_rs))		\
+		__show_ratelimited = true;				\
+	__show_ratelimited;						\
+})
 
 #define UDBG_UNDEFINED	(1 << 0)
 #define UDBG_SYSCALL	(1 << 1)