linux-kernel - Re: [PATCH] af_packet: Don't use skb after dev_queue

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Message-ID: <20100119104739.GA9088@ff.dom.local>
Date:	Tue, 19 Jan 2010 10:47:39 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Michael Breuer <mbreuer@...jas.com>
Cc:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	David Miller <davem@...emloft.net>, akpm@...ux-foundation.org,
	flyboy@...il.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit()

On Tue, Jan 19, 2010 at 12:46:24AM -0500, Michael Breuer wrote:
> Ok - one last update for a while ...not sure what's next... I put some  
> printk's into sky2.c xmit logic - the packets are being sent to the  
...

Btw, could you try if this patch can makes difference in triggering
the "lib/dma-debug.c:898" warning?

Jarek P.
---

 drivers/net/sky2.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 7650f73..e02e9e9 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2479,6 +2479,9 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx)
 
 		port = le->css & CSS_LINK_BIT;
 		dev = hw->dev[port];
+		if (!netif_running(dev))
+			continue;
+
 		sky2 = netdev_priv(dev);
 		length = le16_to_cpu(le->length);
 		status = le32_to_cpu(le->status);
--
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