netdev - Re: [PATCH net-next 0/4] IP: cleanup LSRR option processing

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Date:   Sun, 06 Aug 2017 20:51:29 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     pabeni@...hat.com
Cc:     netdev@...r.kernel.org, edumazet@...gle.com,
        hannes@...essinduktion.org
Subject: Re: [PATCH net-next 0/4] IP: cleanup LSRR option processing

From: Paolo Abeni <pabeni@...hat.com>
Date: Thu,  3 Aug 2017 18:07:04 +0200

> The __ip_options_echo() function expect a valid dst entry in skb->dst;
> as result we sometimes need to preserve the dst entry for the whole IP
> RX path.
> 
> The current usage of skb->dst looks more a relic from ancient past that
> a real functional constraint. This patchset tries to remove such usage,
> and than drops some hacks currently in place in the IP code to keep
> skb->dst around.
> 
> __ip_options_echo() uses of skb->dst for two different purposes: retrieving
> the netns assicated with the skb, and modify the ingress packet LSRR address
> list. 
> 
> The first patch removes the code modifying the ingress packet, and the second
> one provides an explicit netns argument to __ip_options_echo(). The following
> patches cleanup the current code keeping arund skb->dst for __ip_options_echo's
> sake.
> 
> Updating the __ip_options_echo() function has been previously discussed here:
> 
> http://marc.info/?l=linux-netdev&m=150064533516348&w=2

Series applied, thanks.