net: pktgen: disable xmit_clone on virtual devices
Trying to use burst capability (aka xmit_more) on a virtual device
like bonding is not supported.
For example, skb might be queued multiple times on a qdisc, with
various list corruptions.
Fixes: 38b2cf2982
("net: pktgen: packet bursting via skb->xmit_more")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1134,6 +1134,9 @@ static ssize_t pktgen_if_write(struct file *file,
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return len;
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i += len;
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if ((value > 1) &&
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(!(pkt_dev->odev->priv_flags & IFF_TX_SKB_SHARING)))
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return -ENOTSUPP;
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pkt_dev->burst = value < 1 ? 1 : value;
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sprintf(pg_result, "OK: burst=%d", pkt_dev->burst);
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return count;
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