netdev - Re: [PATCH net v2] ipv6: reallocate addrconf router for ipv6 address when lo device up

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Message-ID: <20140124133213.GP7269@order.stressinduktion.org>
Date:	Fri, 24 Jan 2014 14:32:13 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Gao feng <gaofeng@...fujitsu.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	Sabrina Dubroca <sd@...asysnail.net>,
	Weilong Chen <chenweilong@...wei.com>
Subject: Re: [PATCH net v2] ipv6: reallocate addrconf router for ipv6 address when lo device up

On Fri, Jan 24, 2014 at 04:29:11PM +0800, Gao feng wrote:
> commit 25fb6ca4ed9cad72f14f61629b68dc03c0d9713f
> "net IPv6 : Fix broken IPv6 routing table after loopback down-up"
> allocates addrconf router for ipv6 address when lo device up.
> but commit a881ae1f625c599b460cc8f8a7fcb1c438f699ad
> "ipv6:don't call addrconf_dst_alloc again when enable lo" breaks
> this behavior.
> 
> Since the addrconf router is moved to the garbage list when
> lo device down, we should release this router and rellocate
> a new one for ipv6 address when lo device up.
> 
> This patch solves bug 67951 on bugzilla
> https://bugzilla.kernel.org/show_bug.cgi?id=67951
> 
> change from v1:
> use ip6_rt_put to repleace ip6_del_rt, thanks Hannes!
> change code style, suggested by Sergei.
> 
> CC: Sabrina Dubroca <sd@...asysnail.net>
> CC: Hannes Frederic Sowa <hannes@...essinduktion.org>
> Reported-by: Weilong Chen <chenweilong@...wei.com>
> Signed-off-by: Weilong Chen <chenweilong@...wei.com>
> Signed-off-by: Gao feng <gaofeng@...fujitsu.com>

Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

Thanks, Gao!
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