From b1814f2dd0c6b61a12a2ebb67a13d406d126b227 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kent.overstreet@gmail.com>
Date: Mon, 28 Aug 2017 14:49:35 -0400
Subject: [PATCH] fix a build error on weird glibc

---
 libbcachefs/util.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libbcachefs/util.h b/libbcachefs/util.h
index a9a17d9..99ad359 100644
--- a/libbcachefs/util.h
+++ b/libbcachefs/util.h
@@ -35,11 +35,11 @@ struct closure;
 #define atomic64_add_bug(i, v)	BUG_ON(atomic64_add_return(i, v) < 0)
 
 #define memcpy(_dst, _src, _len)					\
-do {									\
+({									\
 	BUG_ON(!((void *) (_dst) >= (void *) (_src) + (_len) ||		\
 		 (void *) (_dst) + (_len) <= (void *) (_src)));		\
 	memcpy(_dst, _src, _len);					\
-} while (0)
+})
 
 #else /* DEBUG */
 
-- 
2.39.2