virtio-net: fail XDP set if guest csum is negotiated

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[ Upstream commit 18ba58e1c2 ]

We don't support partial csumed packet since its metadata will be lost
or incorrect during XDP processing. So fail the XDP set if guest_csum
feature is negotiated.

Fixes: f600b69050 ("virtio_net: Add XDP support")
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Pavel Popa <pashinho1990@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jason Wang 2018-11-22 14:36:31 +08:00 • committed by Greg Kroah-Hartman

parent 1af400beef

commit b06510bf09

1 changed files with 3 additions and 2 deletions

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drivers/net/virtio_net.c

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