netdev - Re: [PATCH net-next v4 08/15] quic: add path management

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Message-ID: <CADvbK_dDMA5UkS8LDqSkFwg-H2p1DNqqP_4Tv7ie1hqNp-Yrrg@mail.gmail.com>
Date: Wed, 5 Nov 2025 20:28:08 -0500
From: Xin Long <lucien.xin@...il.com>
To: Paolo Abeni <pabeni@...hat.com>
Cc: network dev <netdev@...r.kernel.org>, quic@...ts.linux.dev, davem@...emloft.net, 
	kuba@...nel.org, Eric Dumazet <edumazet@...gle.com>, Simon Horman <horms@...nel.org>, 
	Stefan Metzmacher <metze@...ba.org>, Moritz Buhl <mbuhl@...nbsd.org>, Tyler Fanelli <tfanelli@...hat.com>, 
	Pengtao He <hepengtao@...omi.com>, Thomas Dreibholz <dreibh@...ula.no>, linux-cifs@...r.kernel.org, 
	Steve French <smfrench@...il.com>, Namjae Jeon <linkinjeon@...nel.org>, 
	Paulo Alcantara <pc@...guebit.com>, Tom Talpey <tom@...pey.com>, kernel-tls-handshake@...ts.linux.dev, 
	Chuck Lever <chuck.lever@...cle.com>, Jeff Layton <jlayton@...nel.org>, 
	Benjamin Coddington <bcodding@...hat.com>, Steve Dickson <steved@...hat.com>, Hannes Reinecke <hare@...e.de>, 
	Alexander Aring <aahringo@...hat.com>, David Howells <dhowells@...hat.com>, 
	Matthieu Baerts <matttbe@...nel.org>, John Ericson <mail@...nericson.me>, 
	Cong Wang <xiyou.wangcong@...il.com>, "D . Wythe" <alibuda@...ux.alibaba.com>, 
	Jason Baron <jbaron@...mai.com>, illiliti <illiliti@...tonmail.com>, 
	Sabrina Dubroca <sd@...asysnail.net>, Marcelo Ricardo Leitner <marcelo.leitner@...il.com>, 
	Daniel Stenberg <daniel@...x.se>, Andy Gospodarek <andrew.gospodarek@...adcom.com>
Subject: Re: [PATCH net-next v4 08/15] quic: add path management

On Tue, Nov 4, 2025 at 6:50 AM Paolo Abeni <pabeni@...hat.com> wrote:
>
> On 10/29/25 3:35 PM, Xin Long wrote:
> > This patch introduces 'quic_path_group' for managing paths, represented
> > by 'struct quic_path'. A connection may use two paths simultaneously
> > for connection migration.
> >
> > Each path is associated with a UDP tunnel socket (sk), and a single
> > UDP tunnel socket can be related to multiple paths from different sockets.
> > These UDP tunnel sockets are wrapped in 'quic_udp_sock' structures and
> > stored in a hash table.
> >
> > It includes mechanisms to bind and unbind paths, detect alternative paths
> > for migration, and swap paths to support seamless transition between
> > networks.
> >
> > - quic_path_bind(): Bind a path to a port and associate it with a UDP sk.
> >
> > - quic_path_free(): Unbind a path from a port and disassociate it from a
> >   UDP sk.
>
> I find the above name slightly misleading, as I expect such function to
> free the path argument. Possibly quic_path_unbind?
>
Makes sense.

Thanks.