Return a parent device using the FLA_PARENT_DEV_NAME attribute during links dump. This should help a user figure out which links belong to a particular HW device. E.g. what data channels exists on a specific WWAN modem. Signed-off-by: Sergey Ryazanov <ryazanov.s.a@xxxxxxxxx> --- net/core/rtnetlink.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 56ac16abe0ba..120887c892de 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1819,6 +1819,11 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, if (rtnl_fill_prop_list(skb, dev)) goto nla_put_failure; + if (dev->dev.parent && + nla_put_string(skb, IFLA_PARENT_DEV_NAME, + dev_name(dev->dev.parent))) + goto nla_put_failure; + nlmsg_end(skb, nlh); return 0; -- 2.26.3
