netdev - Re: [PATCH net v2] netpoll: hold rcu read lock in __netpoll_send

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Message-Id: 
 <174140703601.2576884.2534454406231476474.git-patchwork-notify@kernel.org>
Date: Sat, 08 Mar 2025 04:10:36 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Breno Leitao <leitao@...ian.org>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, horms@...nel.org, amwang@...hat.com,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org, kernel-team@...a.com
Subject: Re: [PATCH net v2] netpoll: hold rcu read lock in __netpoll_send_skb()

Hello:

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

On Thu, 06 Mar 2025 05:16:18 -0800 you wrote:
> The function __netpoll_send_skb() is being invoked without holding the
> RCU read lock. This oversight triggers a warning message when
> CONFIG_PROVE_RCU_LIST is enabled:
> 
> 	net/core/netpoll.c:330 suspicious rcu_dereference_check() usage!
> 
> 	 netpoll_send_skb
> 	 netpoll_send_udp
> 	 write_ext_msg
> 	 console_flush_all
> 	 console_unlock
> 	 vprintk_emit
> 
> [...]

Here is the summary with links:
  - [net,v2] netpoll: hold rcu read lock in __netpoll_send_skb()
    https://git.kernel.org/netdev/net/c/505ead7ab77f

You are awesome, thank you!
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