From: patchwork-bot+netdevbpf@kernel.org
To: Arun Ramadoss <arun.ramadoss@microchip.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
george.mccollister@gmail.com, kuba@kernel.org,
davem@davemloft.net, olteanv@gmail.com, f.fainelli@gmail.com,
vivien.didelot@gmail.com, andrew@lunn.ch,
UNGLinuxDriver@microchip.com, woojung.huh@microchip.com
Subject: Re: [PATCH v2 net] net: dsa: microchip: Added the condition for scheduling ksz_mib_read_work
Date: Tue, 12 Oct 2021 10:40:07 +0000 [thread overview]
Message-ID: <163403520747.25122.15656227462874718417.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20211011154808.25820-1-arun.ramadoss@microchip.com>
Hello:
This patch was applied to netdev/net.git (master)
by David S. Miller <davem@davemloft.net>:
On Mon, 11 Oct 2021 21:18:08 +0530 you wrote:
> When the ksz module is installed and removed using rmmod, kernel crashes
> with null pointer dereferrence error. During rmmod, ksz_switch_remove
> function tries to cancel the mib_read_workqueue using
> cancel_delayed_work_sync routine and unregister switch from dsa.
>
> During dsa_unregister_switch it calls ksz_mac_link_down, which in turn
> reschedules the workqueue since mib_interval is non-zero.
> Due to which queue executed after mib_interval and it tries to access
> dp->slave. But the slave is unregistered in the ksz_switch_remove
> function. Hence kernel crashes.
>
> [...]
Here is the summary with links:
- [v2,net] net: dsa: microchip: Added the condition for scheduling ksz_mib_read_work
https://git.kernel.org/netdev/net/c/ef1100ef20f2
You are awesome, thank you!
--
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prev parent reply other threads:[~2021-10-12 10:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-11 15:48 [PATCH v2 net] net: dsa: microchip: Added the condition for scheduling ksz_mib_read_work Arun Ramadoss
2021-10-12 10:40 ` patchwork-bot+netdevbpf [this message]
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