lpc_eth: add missing ndo_change_mtu()
lpc_eth does a copy of transmitted skbs to DMA area, without checking skb lengths, so can trigger buffer overflows : memcpy(pldat->tx_buff_v + txidx * ENET_MAXF_SIZE, skb->data, len); One way to get bigger skbs is to allow MTU changes above the 1500 limit. Calling eth_change_mtu() in ndo_change_mtu() makes sure this cannot happen. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Roland Stigge <stigge@antcom.de> Cc: Kevin Wells <kevin.wells@nxp.com> Acked-by: Roland Stigge <stigge@antcom.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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