linux-kernel - Re: [PATCH net v2] net: cadence: macb: Fix a possible deadlock in macb_halt

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Message-Id: 
 <174710103549.1140764.16369480038799369631.git-patchwork-notify@kernel.org>
Date: Tue, 13 May 2025 01:50:35 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Mathieu Othacehe <othacehe@....org>
Cc: nicolas.ferre@...rochip.com, claudiu.beznea@...on.dev,
 andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, anton.reding@...disgyr.com
Subject: Re: [PATCH net v2] net: cadence: macb: Fix a possible deadlock in
 macb_halt_tx.

Hello:

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

On Fri,  9 May 2025 14:19:35 +0200 you wrote:
> There is a situation where after THALT is set high, TGO stays high as
> well. Because jiffies are never updated, as we are in a context with
> interrupts disabled, we never exit that loop and have a deadlock.
> 
> That deadlock was noticed on a sama5d4 device that stayed locked for days.
> 
> Use retries instead of jiffies so that the timeout really works and we do
> not have a deadlock anymore.
> 
> [...]

Here is the summary with links:
  - [net,v2] net: cadence: macb: Fix a possible deadlock in macb_halt_tx.
    https://git.kernel.org/netdev/net/c/c92d6089d8ad

You are awesome, thank you!
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