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>

diff --git a/tools/virtio/linux/virtio.h b/tools/virtio/linux/virtio.h
index b4fbc91..7579f19 100644 (file)
--- 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