linux-kernel - Re: [PATCH net] net/smc: Avoid overwriting the copies of clcsock callback functions

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Message-Id: <164458141052.22011.5045828646528972174.git-patchwork-notify@kernel.org>
Date:   Fri, 11 Feb 2022 12:10:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Wen Gu <guwen@...ux.alibaba.com>
Cc:     kgraul@...ux.ibm.com, davem@...emloft.net, kuba@...nel.org,
        linux-s390@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net/smc: Avoid overwriting the copies of clcsock callback
 functions

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Wed,  9 Feb 2022 22:10:53 +0800 you wrote:
> The callback functions of clcsock will be saved and replaced during
> the fallback. But if the fallback happens more than once, then the
> copies of these callback functions will be overwritten incorrectly,
> resulting in a loop call issue:
> 
> clcsk->sk_error_report
>  |- smc_fback_error_report() <------------------------------|
>      |- smc_fback_forward_wakeup()                          | (loop)
>          |- clcsock_callback()  (incorrectly overwritten)   |
>              |- smc->clcsk_error_report() ------------------|
> 
> [...]

Here is the summary with links:
  - [net] net/smc: Avoid overwriting the copies of clcsock callback functions
    https://git.kernel.org/netdev/net/c/1de9770d121e

You are awesome, thank you!
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