gro: take care of DODGY packets
Jaroslav reported a recent throughput regression with virtio_net caused by blamed commit. It is unclear if DODGY GSO packets coming from user space can be accepted by GRO engine in the future with minimal changes, and if there is any expected gain from it. In the meantime, make sure to detect and flush DODGY packets. Fixes: 5eddb249 ("gro: add support of (hw)gro packets to gro stack") Signed-off-by:Eric Dumazet <edumazet@google.com> Reported-and-bisected-by:
Jaroslav Pulchart <jaroslav.pulchart@gooddata.com> Cc: Coco Li <lixiaoyan@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
9dab880d