netdev - Re: [PATCH net] genetlink: hold RCU in genlmsg

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Message-Id: 
 <172904043123.1343417.496516714849823258.git-patchwork-notify@kernel.org>
Date: Wed, 16 Oct 2024 01:00:31 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Eric Dumazet <edumazet@...gle.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 netdev@...r.kernel.org, eric.dumazet@...il.com, jchapman@...alix.com,
 tparkin@...alix.com, johannes.berg@...el.com
Subject: Re: [PATCH net] genetlink: hold RCU in genlmsg_mcast()

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Fri, 11 Oct 2024 17:12:17 +0000 you wrote:
> While running net selftests with CONFIG_PROVE_RCU_LIST=y I saw
> one lockdep splat [1].
> 
> genlmsg_mcast() uses for_each_net_rcu(), and must therefore hold RCU.
> 
> Instead of letting all callers guard genlmsg_multicast_allns()
> with a rcu_read_lock()/rcu_read_unlock() pair, do it in genlmsg_mcast().
> 
> [...]

Here is the summary with links:
  - [net] genetlink: hold RCU in genlmsg_mcast()
    https://git.kernel.org/netdev/net/c/56440d7ec28d

You are awesome, thank you!
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