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Date:	Wed, 30 May 2007 09:27:57 -0700
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	"Laurent Chavey" <chavey@...gle.com>
Cc:	netdev@...r.kernel.org
Subject: Re: bond_compute_features() does not handle devices with different
 CSUM

On Tue, 29 May 2007 17:41:45 -0700
"Laurent Chavey" <chavey@...gle.com> wrote:

> kernel version <= 2.6.20.1
> file drivers/net/bonding/bonding_main.c
> function bond_compute_features()
> 
> -----------
>   Given a system with two different NIC. One driver sets
>         dev->features |=  NETIF_F_HW_CSUM
>   the other driver sets
>         dev->features |=  NETIF_F_IP_CSUM
> 
>   when enslaving the 2 device above, bond_compute_features()
>   does not set the intersection of the 2 CSUM
>   features (should be NETIF_F_IP_CSUM)
> -----------
> 
>    should the bond features in the case above include NETIF_F_IP_CSUM
> -
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The bridge code already has a more complete/complex recompute
routine to handle this.

-- 
Stephen Hemminger <shemminger@...ux-foundation.org>
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