From c19decc23cb803cb85e4bd89c9e916e1e2dff8aa Mon Sep 17 00:00:00 2001
From: Furquan Shaikh <furquan@chromium.org>
Date: Wed, 19 Apr 2017 19:25:52 -0700
Subject: [PATCH] UPSTREAM: commonlib/helpers: Add helper macro for member_size

member_size macro provides the size of a structure member.

BUG=none
BRANCH=none
TEST=none

Change-Id: I8758427d742045c018d49d928a9a8cb80f014eb0
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 10d1fde5756d9535b2301806c01d0b029661eddc
Original-Change-Id: I53e9c9bf70b3ebed0d15e8258111b17e50667a74
Original-Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-on: https://review.coreboot.org/19384
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Philippe Mathieu-Daud <philippe.mathieu.daude@gmail.com>
Original-Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: https://chromium-review.googlesource.com/486754
---
 src/commonlib/include/commonlib/helpers.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/commonlib/include/commonlib/helpers.h b/src/commonlib/include/commonlib/helpers.h
index d2ef94196d..0a796ba85b 100644
--- a/src/commonlib/include/commonlib/helpers.h
+++ b/src/commonlib/include/commonlib/helpers.h
@@ -85,6 +85,9 @@
 	const __typeof__(((type *)0)->member) *__mptr = (ptr);	\
 	(type *)((char *)__mptr - offsetof(type, member)); })
 
+/* Calculate size of structure member. */
+#define member_size(type, member)	(sizeof(((type *)0)->member))
+
 #ifndef __unused
 #define __unused __attribute__((unused))
 #endif