Some InfiniBand network devices have multiple ports on the same PCI function. Prior to this the kernel erroneously used the `dev_id' sysfs field of those network interfaces to convey the port number to userspace. `dev_id' is currently reserved for distinguishing stacked ifaces (e.g: VLANs) with the same hardware address as their parent device. Similar fixes to net/mlx4_en and many other drivers, which started exporting this information through `dev_id' before 3.15, were accepted into the kernel 4 years ago. See 76a066f2a2a0268b565459c417b59724b5a3197b, commit message: `net/mlx4_en: Expose port number through sysfs'. This commit is separated from the previous one since we may wish to preserve backwards compatibility with userspace being already dependent on `dev_id' being different. Signed-off-by: Arseny Maslennikov <ar@xxxxxxxxx> --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index fcd69273de91..ba16a63ee303 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1880,7 +1880,6 @@ static int ipoib_parent_init(struct net_device *ndev) sizeof(union ib_gid)); SET_NETDEV_DEV(priv->dev, priv->ca->dev.parent); - priv->dev->dev_id = priv->port - 1; priv->dev->dev_port = priv->port - 1; return 0; -- 2.18.0
