From: Jeff Kirsher <[email protected]>
Date: Fri, 14 Mar 2014 02:47:11 -0700
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> index 851c413..8bea6ca 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> @@ -7121,6 +7121,11 @@ static netdev_tx_t __ixgbe_xmit_frame(struct sk_buff
> *skb,
> struct ixgbe_adapter *adapter = netdev_priv(netdev);
> struct ixgbe_ring *tx_ring;
>
> + if (!netif_carrier_ok(netdev)) {
> + dev_kfree_skb_any(skb);
> + return NETDEV_TX_OK;
> + }
> +
I would much prefer that this check moves into netpoll's direct invocation of
->ndo_start_xmit().
Otherwise every driver will start to add this check and that kind of
duplication doesn't make any sense at all.
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