linux-kernel - Re: Linux, tcpdump and vlan

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Message-ID: <544527.16391.qm@web56614.mail.re3.yahoo.com>
Date:	Thu, 19 Jul 2007 10:46:52 -0700 (PDT)
From:	andrei radulescu-banu <iubica2@...oo.com>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Krzysztof Halasa <khc@...waw.pl>, linux-kernel@...r.kernel.org,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: Linux, tcpdump and vlan

>> [Andrei] VLAN_TX_SKB_CB() is perfect for that.
> [Patrick, Stephen] No its not. Its only legal to use while something has ownership
of the skb. Between VLAN devices and real devices qdiscs are
free to use it.

All right, using VLAN_TX_SKB_CB() is a bad idea. In that case, we need to amend the skb struct, I don't see another way.

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