netdev - Re: [PATCH] bridge: forwarding table information for >256 devices

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Message-Id: <20080502.165348.226972498.davem@davemloft.net>
Date:	Fri, 02 May 2008 16:53:48 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	shemminger@...tta.com
Cc:	netdev@...r.kernel.org, bridge@...ux-foundation.org
Subject: Re: [PATCH] bridge: forwarding table information for >256 devices

From: Stephen Hemminger <shemminger@...tta.com>
Date: Thu, 1 May 2008 13:42:09 -0700

> The forwarding table binary interface (my bad choice), only exposes the
> port number of the first 8 bits. The bridge code was limited to 256 ports
> at the time, but now the kernel supports up 1024 ports, so the upper bits
> are lost when doing:
>    brctl showmacs
> 
> The fix is to squeeze the extra bits into small hole left in data structure,
> to maintain binary compatiablity.
> 
> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>

At least you had somewhere to stick the high bits :)

Applied, thanks.
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