netdev - Re: [PATCH 2/5 2.6.21-rc7] l2tp: pppol2tp changes to existing ppp kernel headers

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Date:	23 Apr 2007 09:21:58 -0700
From:	"Dale Farnsworth" <dale@...nsworth.org>
To:	jchapman@...alix.com, netdev@...r.kernel.org
Subject: Re: [PATCH 2/5 2.6.21-rc7] l2tp: pppol2tp changes to existing ppp kernel headers

James Chapman wrote:
> [L2TP]: Modify kernel headers for L2TP.

Since the Subject: line becomes the first line of the commit comments,
the above line is redundant.

> This patch adds L2TP definitions to existing PPP and socket headers.
> 
> Signed-off-by: James Chapman <jchapman@...alix.com>
> 
> ---
> 
> Add struct sockaddr_pppol2tp to carry L2TP-specific address
> information for the PPPoX (PPPoL2TP) socket. Unfortunately we can't
> use the union inside struct sockaddr_pppox because the L2TP-specific
> data is larger than the current size of the union and we must preserve
> the size of struct sockaddr_pppox for binary compatibility.
> 
> Also add an ioctl to allow userspace to obtain L2TP counters and state
> from the kernel.

In my opinion, the above info is sufficiently useful to be included
commit comments.

-Dale Farnsworth
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