netdev - Re: [PATCH net-next 5/5] selftests: fib-onlink: Add test cases for nexthop device mismatch

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Message-ID: <5730342a-b96b-42c0-8945-f7f27cfe1260@kernel.org>
Date: Mon, 12 Jan 2026 08:31:09 -0700
From: David Ahern <dsahern@...nel.org>
To: Ido Schimmel <idosch@...dia.com>, netdev@...r.kernel.org
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 edumazet@...gle.com, horms@...nel.org, petrm@...dia.com
Subject: Re: [PATCH net-next 5/5] selftests: fib-onlink: Add test cases for
 nexthop device mismatch

On 1/11/26 5:08 AM, Ido Schimmel wrote:
> Add test cases that verify that when the "onlink" keyword is specified,
> both address families (with and without VRF) accept routes with a
> gateway address that is reachable via a different interface than the one
> specified.
> 
> Output without "ipv6: Allow for nexthop device mismatch with "onlink"":
> 
>  # ./fib-onlink-tests.sh | grep mismatch
>  TEST: nexthop device mismatch                             [ OK ]
>  TEST: nexthop device mismatch                             [ OK ]
>  TEST: nexthop device mismatch                             [FAIL]
>  TEST: nexthop device mismatch                             [FAIL]
> 
> Output with "ipv6: Allow for nexthop device mismatch with "onlink"":
> 
>  # ./fib-onlink-tests.sh | grep mismatch
>  TEST: nexthop device mismatch                             [ OK ]
>  TEST: nexthop device mismatch                             [ OK ]
>  TEST: nexthop device mismatch                             [ OK ]
>  TEST: nexthop device mismatch                             [ OK ]
> 
> That is, the IPv4 tests were always passing, but the IPv6 ones only pass
> after the specified patch.
> 
> Reviewed-by: Petr Machata <petrm@...dia.com>
> Signed-off-by: Ido Schimmel <idosch@...dia.com>
> ---
>  tools/testing/selftests/net/fib-onlink-tests.sh | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 

Reviewed-by: David Ahern <dsahern@...nel.org>