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[e1000] Ensure descriptor is fully written before sending packet
Reported-by: Mark McLoughlin <markmc@redhat.com>
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@@ -588,6 +588,7 @@ e1000_transmit ( struct net_device *netdev, struct io_buffer *iobuf )
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/* Write new tail to NIC, making packet available for transmit
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*/
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wmb();
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E1000_WRITE_REG ( hw, TDT, adapter->tx_tail );
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return 0;
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