From dacc571fc3cda9c4299499c258dfcf8fb70b39d8 Mon Sep 17 00:00:00 2001
From: Liu Shuo <shuo.a.liu@intel.com>
Date: Tue, 10 Apr 2018 12:54:51 +0800
Subject: [PATCH] DM: use standard offsetof to avoid duplicate definition

Signed-off-by: Liu Shuo <shuo.a.liu@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
---
 hw/platform/rtc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/hw/platform/rtc.c b/hw/platform/rtc.c
index a58839151..8a5ffad88 100644
--- a/hw/platform/rtc.c
+++ b/hw/platform/rtc.c
@@ -30,6 +30,7 @@
 #include <pthread.h>
 #include <string.h>
 #include <assert.h>
+#include <stddef.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -49,8 +50,6 @@
 # define RTC_DEBUG(format, ...)      do { } while (0)
 #endif
 
-#define offsetof(type, member)	((size_t)(&((type *)0)->member))
-
 /* Register layout of the RTC */
 struct rtcdev {
 	uint8_t	sec;