nfp: validate the return code from dev_queue_xmit()
dev_queue_xmit() may return error codes as well as netdev_tx_t, and it always consumes the skb. Make sure we always return a correct netdev_tx_t value. Fixes: eadfa4c3 ("nfp: add stats and xmit helpers for representors") Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: NJohn Hurley <john.hurley@netronome.com> Reviewed-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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