linux-kernel - Re: [PATCH net 0/2] ipv6: fixes for the multicast routes

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Date:   Sun, 17 Jan 2021 03:28:11 +0100
From:   Matteo Croce <mcroce@...ux.microsoft.com>
To:     David Ahern <dsahern@...il.com>
Cc:     Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Thomas Graf <tgraf@...g.ch>
Subject: Re: [PATCH net 0/2] ipv6: fixes for the multicast routes

On Sat, Jan 16, 2021 at 5:41 AM David Ahern <dsahern@...il.com> wrote:
>
> On 1/15/21 4:12 PM, Matteo Croce wrote:
> > On Fri, Jan 15, 2021 at 11:50 PM Jakub Kicinski <kuba@...nel.org> wrote:
> >>
> >> On Fri, 15 Jan 2021 19:42:07 +0100 Matteo Croce wrote:
> >>> From: Matteo Croce <mcroce@...rosoft.com>
> >>>
> >>> Fix two wrong flags in the IPv6 multicast routes created
> >>> by the autoconf code.
> >>
> >> Any chance for Fixes tags here?
> >
> > Right.
> > For 1/2 I don't know exactly, that code was touched last time in
> > 86872cb57925 ("[IPv6] route: FIB6 configuration using struct
> > fib6_config"), but it was only refactored. Before 86872cb57925, it was
> > pushed in the git import commit by Linus: 1da177e4c3f4
> > ("Linux-2.6.12-rc2").
> > BTW, according the history repo, it entered the tree in the 2.4.0
> > import, so I'd say it's here since the beginning.
> >
> > While for 2/2 I'd say:
> >
> > Fixes: e8478e80e5a7 ("net/ipv6: Save route type in rt6_info")
> >
>
> As I recall (memory jogging from commit description) my patch only moved
> the setting from ip6_route_info_create default to here.
>
> The change is correct, just thinking it goes back beyond 4.16. If
> someone has a system running a 4.14 or earlier kernel it should be easy
> to know if this was the default prior.

Indeed, it was the same long before 4.14:

# uname -a
Linux ubuntu 4.4.0-142-generic #168~14.04.1-Ubuntu SMP Sat Jan 19
11:26:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
# ip -6 -d route show table local dev eth0
unicast ff00::/8 proto boot scope global metric 256 pref medium

Regards,
-- 
per aspera ad upstream