netdev - Re: [PATCH net-next] net/core: Replace driver version to be kernel version

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Date:   Mon, 27 Jan 2020 17:39:57 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Shannon Nelson <snelson@...sando.io>,
        "David S . Miller" <davem@...emloft.net>,
        Michal Kalderon <michal.kalderon@...vell.com>,
        linux-netdev <netdev@...r.kernel.org>,
        RDMA mailing list <linux-rdma@...r.kernel.org>
Subject: Re: [PATCH net-next] net/core: Replace driver version to be kernel
 version

On Mon, Jan 27, 2020 at 06:21:08AM -0800, Jakub Kicinski wrote:
> On Mon, 27 Jan 2020 08:45:34 +0200, Leon Romanovsky wrote:
> > > The thing is that we don't consider in-kernel API as stable one, so
> > > addition of new field which is not in use in upstream looks sketchy to
> > > me, but I have an idea how to solve it.
> >
> > Actually, it looks like my idea is Jakub's and Michal's idea. I will use
> > this opportunity and remove MODULE_VERSION() too.
>
> If you do please make sure DKMS works. I remember it was looking at
> that value.

I'll check, thanks.

However from reading the source, it will be unlikely to see any
issues there.

DKMS uses modversion for two things. First is to manage internal tree
where those modules will be built and it knows how to install and clean
automatically modules. Second is to list modaliases, and it handles them
perfectly with and without version [1].

In our case, modules version will be available, it just going to change
from 1.0.0. to something like 5.5.0-rc6.

[1] https://github.com/dell/dkms/blob/master/dkms_find-provides#L48

Thanks