netdev - Re: [PATCH iproute2-next v5 1/2] ip: GTP support in ip link

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Message-ID: <5d2d7c77-2c08-7c6e-b816-bbab21c36171@gmail.com>
Date:   Thu, 17 Mar 2022 08:47:48 -0600
From:   David Ahern <dsahern@...il.com>
To:     Harald Welte <laforge@...monks.org>,
        "Drewek, Wojciech" <wojciech.drewek@...el.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "stephen@...workplumber.org" <stephen@...workplumber.org>
Subject: Re: [PATCH iproute2-next v5 1/2] ip: GTP support in ip link

On 3/17/22 8:02 AM, Harald Welte wrote:
> Hi Wojciech, David,
> 
> On Thu, Mar 17, 2022 at 11:11:40AM +0000, Drewek, Wojciech wrote:
>>> as a u32 does that mean more roles might get added? Seems like this
>>> should have a attr to string converter that handles future additions.
>>
>> I think no more roles are expected but we can ask Harald.
> 
> I also don't currently know of any situation where we would want to add
> more roles.
> 

Better safe than giving users wrong information. I would prefer if this
attribute to string conversion handle the 2 known roles and return
"unknown" if a new value pops up.