Rather than just transmitting garbage past the end of the small packet. Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org> --- drivers/net/ethernet/faraday/ftgmac100.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c index 6c71726..3f2172f 100644 --- a/drivers/net/ethernet/faraday/ftgmac100.c +++ b/drivers/net/ethernet/faraday/ftgmac100.c @@ -636,6 +636,13 @@ static int ftgmac100_hard_start_xmit(struct sk_buff *skb, struct ftgmac100_txdes *txdes; dma_addr_t map; + /* The HW doesn't pad small frames */ + if (skb_padto(skb, ETH_ZLEN) < 0) { + netdev->stats.tx_dropped++; + return NETDEV_TX_OK; + } + + /* Reject oversize packets */ if (unlikely(skb->len > MAX_PKT_SIZE)) { if (net_ratelimit()) netdev_dbg(netdev, "tx packet too big\n"); -- 2.9.3