kernel_patch.diff

--- arch/arm64/include/asm/uaccess.h	2016-08-16 10:31:54.000000000 +0300
+++ ../linux-4.4.18.my/arch/arm64/include/asm/uaccess.h	2021-05-14 12:14:23.295621670 +0300
@@ -247,15 +247,19 @@
 		-EFAULT;						\
 })
 
-extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n);
-extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n);
+extern unsigned long __must_check __arch_copy_from_user(void *to, const void __user *from, unsigned long n);
+extern unsigned long __must_check __arch_copy_to_user(void __user *to, const void *from, unsigned long n);
 extern unsigned long __must_check __copy_in_user(void __user *to, const void __user *from, unsigned long n);
 extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
 
+#define __copy_to_user __arch_copy_to_user
+#define __copy_from_user __arch_copy_from_user
+
+
 static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
 {
 	if (access_ok(VERIFY_READ, from, n))
-		n = __copy_from_user(to, from, n);
+		n = __arch_copy_from_user(to, from, n);
 	else /* security hole - plug it */
 		memset(to, 0, n);
 	return n;
@@ -264,7 +268,7 @@
 static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 	if (access_ok(VERIFY_WRITE, to, n))
-		n = __copy_to_user(to, from, n);
+		n = __arch_copy_to_user(to, from, n);
 	return n;
 }
 
@@ -275,8 +279,8 @@
 	return n;
 }
 
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
+#define __copy_to_user_inatomic __arch_copy_to_user
+#define __copy_from_user_inatomic __arch_copy_from_user
 
 static inline unsigned long __must_check clear_user(void __user *to, unsigned long n)
 {
--- arch/arm64/Kconfig.platforms	2016-08-16 10:31:54.000000000 +0300
+++ ../linux-4.4.18.my/arch/arm64/Kconfig.platforms	2021-05-13 15:16:16.247434443 +0300
@@ -128,4 +128,15 @@
    help
      This enables support for Xilinx ZynqMP Family
 
+config ARCH_RTD129x
+	bool "Realtek RTD129x SoC Family"
+	select ARM_GIC
+	select CLKSRC_OF
+	select PINCTRL
+	select RTK_PLATFORM
+	select PM_OPP
+	select IRDA
+	help
+	  This enables support for Realtek RTD129x SoC Family
+
 endmenu