Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index 237aa52..deef4d0 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -62,8 +62,8 @@
 struct pt_regs;
 void die(const char *msg, struct pt_regs *regs, int err);
 
-struct siginfo;
-void arm_notify_die(const char *str, struct pt_regs *regs, struct siginfo *info,
+void arm_notify_die(const char *str, struct pt_regs *regs,
+		int signo, int si_code, void __user *addr,
 		unsigned long err, unsigned long trap);
 
 #ifdef CONFIG_ARM_LPAE
@@ -85,7 +85,7 @@
 extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
 
 struct mm_struct;
-extern void show_pte(struct mm_struct *mm, unsigned long addr);
+void show_pte(const char *lvl, struct mm_struct *mm, unsigned long addr);
 extern void __show_regs(struct pt_regs *);
 
 #endif