Re: [PATCH] ipv6: preserve insertion order for same-scope addresses

[Yumei Huang]

On Wed, Nov 26, 2025 at 10:58 PM Jakub Kicinski <kuba@xxxxxxxxxx> wrote:
>
> On Wed, 26 Nov 2025 16:37:14 +0800 Yumei Huang wrote:
> > IPv6 addresses with the same scope were returned in reverse insertion
> > order, unlike IPv4. For example, when adding a -> b -> c, the list was
> > reported as c -> b -> a, while IPv4 preserved the original order.
> >
> > This patch aligns IPv6 address ordering with IPv4 for consistency.
>
> This breaks the ioam6.sh test:
> https://netdev-3.bots.linux.dev/vmksft-net-dbg/results/402461/16-ioam6-sh/stdout
> https://netdev-3.bots.linux.dev/vmksft-net/results/402461/14-ioam6-sh/stdout

Thanks for catching this. The error can be fixed by just swaping the
two lines of adding addresses for veth0 in ioam_node_alpha netns. I
will fix it in v2. Thanks!
> --
> pw-bot: cr
>


-- 
Thanks,

Yumei Huang