netdev - Re: [PATCH] ipv4: fix for ip_options_rcv

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Date:	Tue, 15 Nov 2011 02:28:35 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	lw@...fujitsu.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] ipv4: fix for ip_options_rcv_srr() daddr update.

From: Li Wei <lw@...fujitsu.com>
Date: Tue, 15 Nov 2011 15:26:31 +0800

> My question, in ip_forward() and ip_forward_options() rt is there, why not
> we just use it?

Because I'm trying to eliminate all accesses to rt->rt_dst because
when I remove the routing cache, routes will be shared.  One 'rt'
will refer to many specific destination addresses.
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