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

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Message-ID: <20251126065818.581b2c9b@kernel.org>
Date: Wed, 26 Nov 2025 06:58:18 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Yumei Huang <yuhuang@...hat.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 sbrivio@...hat.com, david@...son.dropbear.id.au, davem@...emloft.net,
 dsahern@...nel.org, edumazet@...gle.com, pabeni@...hat.com,
 horms@...nel.org
Subject: Re: [PATCH] ipv6: preserve insertion order for same-scope addresses

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
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