diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 59494df0f55b..31b15db9685d 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -10,7 +10,9 @@
 /*
  * This file provides common defines for ARM SMC Calling Convention as
  * specified in
- * http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+ * https://developer.arm.com/docs/den0028/latest
+ *
+ * This code is up-to-date with version DEN 0028 B
  */
 
 #define ARM_SMCCC_STD_CALL	        _AC(0,U)