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

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Message-ID: <914b0331-8fab-4ad6-a6a8-e511a4352cea@redhat.com>
Date: Tue, 4 Nov 2025 12:50:00 +0100
From: Paolo Abeni <pabeni@...hat.com>
To: Xin Long <lucien.xin@...il.com>, network dev <netdev@...r.kernel.org>,
 quic@...ts.linux.dev
Cc: 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 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?

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