netdev - Re: [Bugme-new] [Bug 9440] New: Problem in joinning a socket to ipv6 multicast address in specific scenario

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Message-ID: <20071130120219.GA26848@gondor.apana.org.au>
Date:	Fri, 30 Nov 2007 23:02:19 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Evgeniy Polyakov <johnpol@....mipt.ru>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, netdev@...r.kernel.org,
	bugme-daemon@...zilla.kernel.org, aviad.yehezkel5@...il.com,
	YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Subject: Re: [Bugme-new] [Bug 9440] New: Problem in joinning a socket to ipv6 multicast address in specific scenario

On Wed, Nov 28, 2007 at 02:18:14PM +0300, Evgeniy Polyakov wrote:
> Hi.
> 
> Avaid provided test application, so bug got fixed.
> 
> IPv6 addrconf removes ipv6 inner device from netdev each time cmu
> changes and new value is less than IPV6_MIN_MTU (1280 bytes).
> When mtu is changed and new value is greater than IPV6_MIN_MTU,
> it does not add ipv6 addresses and inner device bac.
> 
> This patch fixes that.
> 
> Tested with Avaid's application, which works ok now.
> 
> Signed-off-by: Evgeniy Polyakov <johnpol@....mipt.ru>

OK, this looks like a good change.  However, we should also
change NETDEV_UP as well to recreate idev if it isn't there
and the MTU is big enough.

Thanks,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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