From 6a7e25c7fb482dba3e80fec953f1907bcb24d52c Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Mon, 27 Jan 2020 09:20:28 +0200 Subject: net/core: Replace driver version to be kernel version 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: [leonro@erver ~]$ ethtool -i eth0 driver: virtio_net version: 1.0.0 After this change and once ->version assignment will be deleted from virtio_net: [leonro@server ~]$ ethtool -i eth0 driver: virtio_net version: 5.5.0-rc6+ Link: https://lore.kernel.org/ksummit-discuss/CA+55aFx9A=5cc0QZ7CySC4F2K7eYaEfzkdYEc9JaNgCcV25=rg@mail.gmail.com/ Link: https://lore.kernel.org/linux-rdma/20200122152627.14903-1-michal.kalderon@marvell.com/T/#md460ff8f976c532a89d6860411c3c50bb811038b Link: https://lore.kernel.org/linux-rdma/20200127060835.GA570@unicorn.suse.cz Signed-off-by: Leon Romanovsky Acked-by: Shannon Nelson Signed-off-by: David S. Miller --- net/ethtool/ioctl.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net') diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index b88dd14e41c6..b987052d91ef 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -655,6 +656,7 @@ static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev, memset(&info, 0, sizeof(info)); info.cmd = ETHTOOL_GDRVINFO; + strlcpy(info.version, UTS_RELEASE, sizeof(info.version)); if (ops->get_drvinfo) { ops->get_drvinfo(dev, &info); } else if (dev->dev.parent && dev->dev.parent->driver) { -- cgit v1.2.3-59-g8ed1b