netdev - Re: AF_PACKET + PACKET_FANOUT: tx packet delivered back in rx

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Message-Id: <20120816.145322.1154793898136345258.davem@davemloft.net>
Date:	Thu, 16 Aug 2012 14:53:22 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	a1k@...l.ru
Cc:	netdev@...r.kernel.org, miquels@...nkel.ow.org
Subject: Re: AF_PACKET + PACKET_FANOUT: tx packet delivered back in rx

From: Aleksandr Kotov <a1k@...l.ru>
Date: Thu, 12 Jul 2012 12:30:17 +0400

> I have a problem using AF_PACKET socket with PACKET_RX_RING, PACKET_TX_RING and PACKET_FANOUT options enabled.
> I am seeing my TX packets get back to the same socket in RX ring. Socket is created and gets bind with ETH_P_ALL protocol type. The problem is in the fanout_add function 
> which sets af_packet_priv to "match" variable, but not sk one describing socket and in dev_queue_xmit_nit skb get bounced back to the socket despite the comment left in the function.

Eric Leblong is posting fixes for this problem recently:

http://patchwork.ozlabs.org/patch/178044/
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