netdev - Re: for_each_netdev_rcu() protected by RTNL and CONFIG_PROVE_RCU

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Message-ID: <20250207-tangible-quartz-shrimp-3afdad@leitao>
Date: Fri, 7 Feb 2025 04:17:25 -0800
From: Breno Leitao <leitao@...ian.org>
To: Eric Dumazet <edumazet@...gle.com>
Cc: Kuniyuki Iwashima <kuniyu@...zon.com>, andrew+netdev@...n.ch,
	kernel-team@...a.com, kuba@...nel.org, netdev@...r.kernel.org,
	ushankar@...estorage.com
Subject: Re: for_each_netdev_rcu() protected by RTNL and CONFIG_PROVE_RCU_LIST

On Fri, Feb 07, 2025 at 03:26:14AM -0800, Breno Leitao wrote:

> > Note that we have different accessors like rtnl_dereference() and
> > rcu_dereference_rtnl()

> To explore this idea further, I'll create a proof-of-concept
> implementation to see how these new functions would look in practice.

I hacked a bit, and I have an RFC for further discussion:

https://lore.kernel.org/all/20250207-arm_fix_selftest-v1-1-487518d2fd1c@debian.org/

Thanks for the suggestion,
--breno