netdev - Re: [net-2.6 PATCH 3/3] netxen : fix BOND_MODE

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Message-Id: <20091120.214820.259339697.davem@davemloft.net>
Date:	Fri, 20 Nov 2009 21:48:20 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	amit@...xen.com
Cc:	netdev@...r.kernel.org, dhananjay.phadke@...gic.com,
	narender.kumar@...gic.com, amit.salecha@...gic.com
Subject: Re: [net-2.6 PATCH 3/3] netxen : fix BOND_MODE_TLB/ALB mode.

From: Amit Kumar Salecha <amit@...xen.com>
Date: Fri, 20 Nov 2009 17:09:34 -0800

> @@ -437,6 +437,7 @@ netxen_read_mac_addr(struct netxen_adapter *adapter)
>  		netdev->dev_addr[i] = *(p + 5 - i);
>  
>  	memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
> +	memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
>  
>  	/* set station address */
>  

I don't think this is correct.

You have to maintain a valid netdev->perm_addr even if you don't use
that value later on internally.  This is how the permanent, probed,
MAC address of the card is made available to the user.

Second of all, it is not clear at all why you need to maintain this
value internally.  Why does it not work to simply use
netdev->dev_addr?

Whatever the reason, you need to explain the details of this in your
commit message.
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