netdev - Re: [PATCH net-next v3] selftests: net: Introduce first PMTU test

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Date:   Wed, 07 Mar 2018 13:39:59 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     sbrivio@...hat.com
Cc:     dsahern@...il.com, weiwan@...gle.com, yoshfuji@...ux-ipv6.org,
        maze@...gle.com, xmu@...hat.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v3] selftests: net: Introduce first PMTU test

From: Stefano Brivio <sbrivio@...hat.com>
Date: Tue,  6 Mar 2018 22:16:27 +0100

> One single test implemented so far: test_pmtu_vti6_exception
> checks that the PMTU of a route exception, caused by a tunnel
> exceeding the link layer MTU, is affected by administrative
> changes of the tunnel MTU. Creation of the route exception is
> checked too.
> 
> Requested-by: David Ahern <dsahern@...il.com>
> Signed-off-by: Stefano Brivio <sbrivio@...hat.com>
> ---
> v3: Explicitly set veth MTU before causing route exception to ensure we actually
>     decrease the PMTU as second step in the test (issue reported by David Ahern)
> 
> v2: Fix error handling for setup_*() functions, make 'ip route get' output
>     parsing more robust, sleep after configuring vti6 addresses (all issues
>     reported by David Ahern)

Applied.