netdev - Re: [PATCH net v3 1/3] net: datagram: introduce datagram_poll

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Message-ID: <aPjmWUAuG-mMJGZm@krikkit>
Date: Wed, 22 Oct 2025 16:12:41 +0200
From: Sabrina Dubroca <sd@...asysnail.net>
To: Ralf Lici <ralf@...delbit.com>
Cc: netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Mina Almasry <almasrymina@...gle.com>,
	Eric Biggers <ebiggers@...gle.com>,
	Antonio Quartulli <antonio@...nvpn.net>
Subject: Re: [PATCH net v3 1/3] net: datagram: introduce datagram_poll_queue
 for custom receive queues

2025-10-21, 12:09:40 +0200, Ralf Lici wrote:
> Some protocols using TCP encapsulation (e.g., espintcp, openvpn) deliver
> userspace-bound packets through a custom skb queue rather than the
> standard sk_receive_queue.
> 
> Introduce datagram_poll_queue that accepts an explicit receive queue,
> and convert datagram_poll into a wrapper around datagram_poll_queue.
> This allows protocols with custom skb queues to reuse the core polling
> logic without relying on sk_receive_queue.
> 
> Cc: Sabrina Dubroca <sd@...asysnail.net>
> Cc: Antonio Quartulli <antonio@...nvpn.net>
> Signed-off-by: Ralf Lici <ralf@...delbit.com>
> ---
>  include/linux/skbuff.h |  3 +++
>  net/core/datagram.c    | 44 ++++++++++++++++++++++++++++++++----------
>  2 files changed, 37 insertions(+), 10 deletions(-)

Reviewed-by: Sabrina Dubroca <sd@...asysnail.net>

-- 
Sabrina