Merge branch 'virtio-net-xdp-fixes'

Jason Wang says:

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several fixups for virtio-net XDP

Merry Xmas and a Happy New year to all:

This series tries to fixes several issues for virtio-net XDP which
could be categorized into several parts:

- fix several issues during XDP linearizing
- allow csumed packet to work for XDP_PASS
- make EWMA rxbuf size estimation works for XDP
- forbid XDP when GUEST_UFO is support
- remove big packet XDP support
- add XDP support or small buffer

Please see individual patches for details.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>