From: Hangbin Liu <liuhangbin@gmail.com>
To: Jiri Pirko <jiri@resnulli.us>
Cc: Nikolay Aleksandrov <razor@blackwall.org>,
netdev@vger.kernel.org, Jay Vosburgh <jv@jvosburgh.net>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Simon Horman <horms@kernel.org>,
Stephen Hemminger <stephen@networkplumber.org>,
David Ahern <dsahern@gmail.com>,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH net-next] bonding: show master index when dumping slave info
Date: Sat, 18 Oct 2025 09:52:49 +0000 [thread overview]
Message-ID: <aPNjcWo8G3tTpin0@fedora> (raw)
In-Reply-To: <7quap7umeeksodg62bbv4ob4344edplb7f33yiebs2hvhrrdvf@wndrzz7rxi7v>
On Fri, Oct 17, 2025 at 11:56:55AM +0200, Jiri Pirko wrote:
> Fri, Oct 17, 2025 at 08:10:09AM +0200, razor@blackwall.org wrote:
> >On 10/17/25 06:03, Hangbin Liu wrote:
> >> Currently, there is no straightforward way to obtain the master/slave
> >> relationship via netlink. Users have to retrieve all slaves through sysfs
> >> to determine these relationships.
> >>
> >
> >How about IFLA_MASTER? Why not use that?
>
> It's been there for a decade. Plus is, it exposes master for all
> slave-master devices. Odd that you missed it.
Once, I wanted to find the slaves from a master interface but couldn’t. So I
added it to my to-do list. Later, I noticed that the master information was
already available in the slave, but I forgot about it after long time.
Recently, when I reviewed my to-do list, I realized that printing all slaves
from the master interface seemed impractical. So I tried to list the master
information in the slave again — and forgot about IFLA_MASTER...
Hangbin
prev parent reply other threads:[~2025-10-18 9:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-17 3:03 [PATCH net-next] bonding: show master index when dumping slave info Hangbin Liu
2025-10-17 3:05 ` [PATCH iproute2-next] bond: slave: print master name Hangbin Liu
2025-10-18 8:57 ` Stephen Hemminger
2025-10-17 6:10 ` [PATCH net-next] bonding: show master index when dumping slave info Nikolay Aleksandrov
2025-10-17 7:26 ` Hangbin Liu
2025-10-17 9:56 ` Jiri Pirko
2025-10-18 9:52 ` Hangbin Liu [this message]
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