From b17d5c6e190f3d328aae0444f8b93d58d0015714 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 28 Feb 2012 09:07:58 +0200
Subject: [PATCH] tools/virtio: stub out strong barriers
The tool should never use them, abort if it does.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
tools/virtio/linux/virtio.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/virtio/linux/virtio.h b/tools/virtio/linux/virtio.h
index b4fbc91c41b4..7579f19e61e0 100644
--- a/tools/virtio/linux/virtio.h
+++ b/tools/virtio/linux/virtio.h
@@ -181,6 +181,9 @@ struct virtqueue {
#define smp_mb() mb()
# define smp_rmb() barrier()
# define smp_wmb() barrier()
+/* Weak barriers should be used. If not - it's a bug */
+# define rmb() abort()
+# define wmb() abort()
#else
#error Please fill in barrier macros
#endif
--
2.34.1