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Date: Thu, 14 Jul 2011 06:16:53 -0700 From: amit.salecha@...gic.com To: davem@...emloft.net Cc: netdev@...r.kernel.org, ameen.rahman@...gic.com, anirban.chakraborty@...gic.com, Sucheta Chakraborty <sucheta.chakraborty@...gic.com>, Amit Kumar Salecha <amit.salecha@...gic.com> Subject: [PATCH NEXT 4/6] qlcnic: fix race in skb->len access. From: Sucheta Chakraborty <sucheta.chakraborty@...gic.com> As soon as skb is given to hardware, TX completion can free skb under us. Therefore, we should update dev stats before kicking the device. Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@...gic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@...gic.com> --- drivers/net/qlcnic/qlcnic_main.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c index 916570d..006a693 100644 --- a/drivers/net/qlcnic/qlcnic_main.c +++ b/drivers/net/qlcnic/qlcnic_main.c @@ -2290,11 +2290,11 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) if (adapter->mac_learn) qlcnic_send_filter(adapter, tx_ring, first_desc, skb); - qlcnic_update_cmd_producer(adapter, tx_ring); - adapter->stats.txbytes += skb->len; adapter->stats.xmitcalled++; + qlcnic_update_cmd_producer(adapter, tx_ring); + return NETDEV_TX_OK; unwind_buff: -- 1.7.3.3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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