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-rw-r--r--hw/virtio/virtio-pci.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 70d2c6b5e3..444b71aab0 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -89,12 +89,6 @@
/* Flags track per-device state like workarounds for quirks in older guests. */
#define VIRTIO_PCI_FLAG_BUS_MASTER_BUG (1 << 0)
-/* QEMU doesn't strictly need write barriers since everything runs in
- * lock-step. We'll leave the calls to wmb() in though to make it obvious for
- * KVM or if kqemu gets SMP support.
- */
-#define wmb() do { } while (0)
-
/* HACK for virtio to determine if it's running a big endian guest */
bool virtio_is_big_endian(void);