netdev - Re: [RFC PATCH] sctp: Don't lookup dst if transport dst is still valid

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Message-ID: <51E145A2.5080809@gmail.com>
Date:	Sat, 13 Jul 2013 08:18:42 -0400
From:	Vlad Yasevich <vyasevich@...il.com>
To:	David Miller <davem@...hat.com>
CC:	fan.du@...driver.com, nhorman@...driver.com,
	nicolas.dichtel@...nd.com, netdev@...r.kernel.org
Subject: Re: [RFC PATCH] sctp: Don't lookup dst if transport dst is still
 valid

On 07/12/2013 06:58 PM, David Miller wrote:
> From: Fan Du <fan.du@...driver.com>
> Date: Fri, 12 Jul 2013 11:15:10 +0800
>
>> But problem still arise when we attempt to delete address
>> in multi-home mode, deleting an IPv6 address does not invalidate
>> any dst which source address is the same at the deleted one.
>> Which means sctp cannot rely on ip6_dst_check in this scenario.
>
> I still cannot understand why this is an SCTP specific issue.
>
> Specifically, I cannot see why address addition/deletion doesn't
> cause problems for cached ipv6 routes in UDP and TCP sockets too.
>

Trying to figure this out.

-vlad
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