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virtio-pci: drop unused wmb macro 

The implementation is wrong for kvm, and it's unused anyway.
Drop it.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20130528102023.GA30055@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Michael S. Tsirkin 2013-05-28 13:20:23 +03:00 committed by Anthony Liguori
parent 0412960617
commit 87d23f78aa
1 changed files with 0 additions and 6 deletions
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6
hw/virtio/virtio-pci.c
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@ -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);