spinlock: Define check_barrier() for non-debug build, fixes build.

Signed-off-by: Keir Fraser <keir@xen.org>

diff --git a/xen/common/spinlock.c b/xen/common/spinlock.c
index 6ca780bce6b592231e3022bdace53d6146baf119..aec9ebf6b71e3b8507b08f03938618b2bb27a930 100644 (file)
--- a/xen/common/spinlock.c
+++ b/xen/common/spinlock.c
@@ -80,6 +80,7 @@ void spin_debug_disable(void)
 #else /* defined(NDEBUG) */
 
 #define check_lock(l) ((void)0)
+#define check_barrier(l) ((void)0)
 
 #endif