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Subject: Re: [PATCH net] net: phy: Warn about incorrect mdio_bus_phy_resume()
 state
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <165958081461.15999.9493689639445901983.git-patchwork-notify@kernel.org>
Date:   Thu, 04 Aug 2022 02:40:14 +0000
References: <20220801233403.258871-1-f.fainelli@gmail.com>
In-Reply-To: <20220801233403.258871-1-f.fainelli@gmail.com>
To:     Florian Fainelli <f.fainelli@gmail.com>
Cc:     netdev@vger.kernel.org, opendmb@gmail.com, andrew@lunn.ch,
        hkallweit1@gmail.com, linux@armlinux.org.uk, davem@davemloft.net,
        edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
        linux-kernel@vger.kernel.org
Precedence: bulk

Hello:

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

On Mon,  1 Aug 2022 16:34:03 -0700 you wrote:
> Calling mdio_bus_phy_resume() with neither the PHY state machine set to
> PHY_HALTED nor phydev->mac_managed_pm set to true is a good indication
> that we can produce a race condition looking like this:
> 
> CPU0						CPU1
> bcmgenet_resume
>  -> phy_resume
>    -> phy_init_hw
>  -> phy_start
>    -> phy_resume
>                                                 phy_start_aneg()
> mdio_bus_phy_resume
>  -> phy_resume
>     -> phy_write(..., BMCR_RESET)
>      -> usleep()                                  -> phy_read()
> 
> [...]

Here is the summary with links:
  - [net] net: phy: Warn about incorrect mdio_bus_phy_resume() state
    https://git.kernel.org/netdev/net/c/744d23c71af3

You are awesome, thank you!
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