Re: KASAN failures in X-Gene ethernet driver in v4.4-rc2

From: Mark Rutland
Date: Wed Nov 25 2015 - 11:34:20 EST


On Wed, Nov 25, 2015 at 08:17:36AM -0800, Eric Dumazet wrote:
> On Wed, 2015-11-25 at 15:59 +0000, Mark Rutland wrote:
> > xgene_enet_start_xmit
>
> Please try following trivial fix

With that applied KASAN is silent, despite my efforts to trigger the
issue, so it looks like that fixes it.

Thanks,
Mark.

> diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
> index 1adfe7036843..9147a0107c44 100644
> --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
> +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
> @@ -450,12 +450,12 @@ static netdev_tx_t xgene_enet_start_xmit(struct sk_buff *skb,
> return NETDEV_TX_OK;
> }
>
> - pdata->ring_ops->wr_cmd(tx_ring, count);
> skb_tx_timestamp(skb);
>
> pdata->stats.tx_packets++;
> pdata->stats.tx_bytes += skb->len;
>
> + pdata->ring_ops->wr_cmd(tx_ring, count);
> return NETDEV_TX_OK;
> }
>
>
>
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