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Date:   Mon, 27 Jan 2020 13:47:48 +0100 (CET)
From:   David Miller <>
Subject: Re: [PATCH net-next v4] net/core: Replace driver version to be
 kernel version

From: Leon Romanovsky <>
Date: Mon, 27 Jan 2020 09:20:28 +0200

> From: Leon Romanovsky <>
> In order to stop useless driver version bumps and unify output
> presented by ethtool -i, let's set default version string.
> As Linus said in [1]: "Things are supposed to be backwards and
> forwards compatible, because we don't accept breakage in user
> space anyway. So versioning is pointless, and only causes
> problems."
> They cause problems when users start to see version changes
> and expect specific set of features which will be different
> for stable@, vanilla and distribution kernels.
> Distribution kernels are based on some kernel version with extra
> patches on top, for example, in RedHat world this "extra" is a lot
> and for them your driver version say nothing. Users who run vanilla
> kernels won't use driver version information too, because running
> such kernels requires knowledge and understanding.
> Another set of problems are related to difference in versioning scheme
> and such doesn't allow to write meaningful automation which will work
> sanely on all ethtool capable devices.
> Before this change:
> [ ~]$ ethtool -i eth0
> driver: virtio_net
> version: 1.0.0
> After this change and once ->version assignment will be deleted
> from virtio_net:
> [leonro@...ver ~]$ ethtool -i eth0
> driver: virtio_net
> version: 5.5.0-rc6+
> Link:
> Link:
> Link:
> Signed-off-by: Leon Romanovsky <>

Applied to net-next, thanks.

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