netdev - Allow non "disabled" state for !netif_oper

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Date:   Wed,  9 Nov 2022 16:24:09 +0100
From:   Rodolfo Giometti <giometti@...eenne.com>
To:     netdev@...r.kernel.org
Cc:     Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <razor@...ckwall.org>,
        Stephen Hemminger <shemminger@...l.org>,
        Flavio Leitner <fbl@...hat.com>,
        "David S . Miller" <davem@...emloft.net>
Subject: Allow non "disabled" state for !netif_oper_up() links

This patch allows non "disabled" state even if the link is UP and runnign
but with no carrier.

I'm trying to implement a new MRP daemon in userspace and when a MRM detects
that one of its ring connections has no carrier, the normative states that
such link shall be set as BLOCKED (or LISTENING for Linux bridges). Current
code blocks this operation.

I think kernel code should implement mechanisms and not policies!

Rodolfo Giometti

---

 br_netlink.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)