netdev - Re: [PATCH v3] af-packet: Add flag to distinguish VID 0 from no-vlan.

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Date:	Wed, 01 Jun 2011 19:08:32 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	greearb@...delatech.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH v3] af-packet:  Add flag to distinguish VID 0 from
 no-vlan.

Le mercredi 01 juin 2011 à 09:49 -0700, greearb@...delatech.com a
écrit :
> From: Ben Greear <greearb@...delatech.com>
> 
> Currently, user-space cannot determine if a 0 tcp_vlan_tci
> means there is no VLAN tag or the VLAN ID was zero.
> 
> Add flag to make this explicit.  User-space can check for
> TP_STATUS_VLAN_VALID || tp_vlan_tci > 0, which will be backwards
> compatible. Older could would have just checked for tp_vlan_tci,
> so it will work no worse than before.
> 
> Signed-off-by: Ben Greear <greearb@...delatech.com>
> ---

Acked-by: Eric Dumazet <eric.dumazet@...il.com>

Thanks


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