linux-kernel - Re: [PATCH net-next v6 5/6] net: devmem: document SO_DEVMEM

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Message-ID: <aQuKi535hyWMLBX4@mini-arch>
Date: Wed, 5 Nov 2025 09:34:03 -0800
From: Stanislav Fomichev <stfomichev@...il.com>
To: Bobby Eshleman <bobbyeshleman@...il.com>
Cc: "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>,
	Kuniyuki Iwashima <kuniyu@...gle.com>,
	Willem de Bruijn <willemb@...gle.com>,
	Neal Cardwell <ncardwell@...gle.com>,
	David Ahern <dsahern@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Jonathan Corbet <corbet@....net>,
	Andrew Lunn <andrew+netdev@...n.ch>, Shuah Khan <shuah@...nel.org>,
	Mina Almasry <almasrymina@...gle.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org,
	Stanislav Fomichev <sdf@...ichev.me>,
	Bobby Eshleman <bobbyeshleman@...a.com>
Subject: Re: [PATCH net-next v6 5/6] net: devmem: document
 SO_DEVMEM_AUTORELEASE socket option

On 11/04, Bobby Eshleman wrote:
> From: Bobby Eshleman <bobbyeshleman@...a.com>
> 

[..]

> +Autorelease Control
> +~~~~~~~~~~~~~~~~~~~

Have you considered an option to have this flag on the dmabuf binding
itself? This will let us keep everything in ynl and not add a new socket
option. I think also semantically, this is a property of the binding
and not the socket? (not sure what's gonna happen if we have
autorelease=on and autorelease=off sockets receiving to the same
dmabuf)