netdev - Re: [PATCH net-next v2] devlink: let kernel allocate region snapshot id

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Date:   Fri, 1 May 2020 14:32:51 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     "Keller, Jacob E" <jacob.e.keller@...el.com>
Cc:     Jiri Pirko <jiri@...nulli.us>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "kernel-team@...com" <kernel-team@...com>
Subject: Re: [PATCH net-next v2] devlink: let kernel allocate region
 snapshot id

On Fri, 1 May 2020 21:23:25 +0000 Keller, Jacob E wrote:
> > Could you please send the snapshot id just before you return 0 in this
> > function, as you offered in v1? I think it would be great to do it like
> > that.
> > 
> 
> Also: Does it make sense to send the snapshot id regardless of
> whether it was auto-generated or not?

I may be wrong, but I think sending extra messages via netlink,
which user space may not expect based on previous kernel versions 
is considered uAPI breakage.