Subject: Re: [PATCH net-next v2] selftests: net: add ipv6 RA route to ECMP merge test

From: Jakub Kicinski <[email-masked]>
Date: Thu, 26 Feb 2026 09:19:41 -0800

On Thu, 26 Feb 2026 13:02:37 +0100 Fernando Fernandez Mancera wrote:
> As commit bbf4a17ad9ff ("ipv6: Fix ECMP sibling count mismatch when
> clearing RTF_ADDRCONF") pointed out, RA routes are not elegible for ECMP
> merging.
> 
> Add a test scenario mixing RA and static routes with gateway to check
> that they are not getting merged.
> 
> Signed-off-by: Fernando Fernandez Mancera <[email-masked]>
> ---
> v2: added CONFIG_IPV6_ROUTE_INFO to the config

Same thing:

# 96.88 [+0.01] sysctl: cannot stat /proc/sys/net/ipv6/conf/veth1/accept_ra_rt_info_max_plen: No such file or directory

Config:
https://netdev-ctrl.bots.linux.dev/logs/vmksft/net-dbg/results/535301/config
looks like you're missing a dependency (IPV6_ROUTER_PREF)

Please do try to build a kernel to make sure the config options stick,
before posting v3. More instructions FWIW
https://github.com/linux-netdev/nipa/wiki/How-to-run-netdev-selftests-CI-style
-- 
pw-bot: cr