Since QEMU 2.4.0, vhost-net uses the cross-endian support of TAP devices to
fix vnet headers. In fact, virtio-net can do the same instead of hackily
patching headers in virtio_net_hdr_swap().

This series moves the enablement of cross-endian support from vhost-net to
virtio-net: both vhost and full emulation can now benefit from it. Of course
we keep the current hack to fall back on when the backend doesn't support
cross-endian.

---

Greg Kurz (3):
      virtio-net: use the backend cross-endian capabilities
      Revert "vhost-net: tell tap backend about the vnet endianness"
      virtio: drop the virtio_needs_swap() helper


 hw/net/vhost_net.c                |   33 +------------------------------
 hw/net/virtio-net.c               |   40 +++++++++++++++++++++++++++++++++++--
 include/hw/virtio/virtio-access.h |    9 --------
 include/hw/virtio/virtio-net.h    |    1 +
 4 files changed, 40 insertions(+), 43 deletions(-)


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