netdev - Re: [PATCH net v2] ipv6: Allow IPv4-mapped address as next-hop

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Message-ID: <5aaea431-23cc-e68a-9008-f8861e00faac@sonic.net>
Date:   Mon, 5 Dec 2016 22:08:05 -0800
From:   Erik Nordmark <nordmark@...ic.net>
To:     David Miller <davem@...emloft.net>, nordmark@...sta.com
Cc:     netdev@...r.kernel.org, gilligan@...sta.com
Subject: Re: [PATCH net v2] ipv6: Allow IPv4-mapped address as next-hop

On 12/5/16 11:52 AM, David Miller wrote:
> From: Erik Nordmark <nordmark@...sta.com>
> Date: Sat,  3 Dec 2016 20:57:09 -0800
>
>> Made kernel accept IPv6 routes with IPv4-mapped address as next-hop.
>>
>> It is possible to configure IP interfaces with IPv4-mapped addresses, and
>> one can add IPv6 routes for IPv4-mapped destinations/prefixes, yet prior
>> to this fix the kernel returned an EINVAL when attempting to add an IPv6
>> route with an IPv4-mapped address as a nexthop/gateway.
>>
>> RFC 4798 (a proposed standard RFC) uses IPv4-mapped addresses as nexthops,
>> thus in order to support that type of address configuration the kernel
>> needs to allow IPv4-mapped addresses as nexthops.
>>
>> Signed-off-by: Erik Nordmark <nordmark@...sta.com>
>> Signed-off-by: Bob Gilligan <gilligan@...sta.com>
> Applied to net-next, thanks.
>
Thanks, especially for moving it from net to net-next.

I guess I don't fully understand what is considered a bug fix for net as 
opposed to new stuff for net-next. Is the former mostly for regressions 
and serious bugs? This was a fix for a bug that's been there since the 
beginning of IPv6 time AFAICT.


   Erik