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Subject: Re: [PATCH net] NFC: netlink: fix sleep in atomic bug when firmware
 download timeout
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <165174061217.13051.18017190469574513763.git-patchwork-notify@kernel.org>
Date:   Thu, 05 May 2022 08:50:12 +0000
References: <20220504055847.38026-1-duoming@zju.edu.cn>
In-Reply-To: <20220504055847.38026-1-duoming@zju.edu.cn>
To:     Duoming Zhou <duoming@zju.edu.cn>
Cc:     krzysztof.kozlowski@linaro.org, linux-kernel@vger.kernel.org,
        davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        pabeni@redhat.com, netdev@vger.kernel.org
Precedence: bulk

Hello:

This patch was applied to netdev/net.git (master)
by Paolo Abeni <pabeni@redhat.com>:

On Wed,  4 May 2022 13:58:47 +0800 you wrote:
> There are sleep in atomic bug that could cause kernel panic during
> firmware download process. The root cause is that nlmsg_new with
> GFP_KERNEL parameter is called in fw_dnld_timeout which is a timer
> handler. The call trace is shown below:
> 
> BUG: sleeping function called from invalid context at include/linux/sched/mm.h:265
> Call Trace:
> kmem_cache_alloc_node
> __alloc_skb
> nfc_genl_fw_download_done
> call_timer_fn
> __run_timers.part.0
> run_timer_softirq
> __do_softirq
> ...
> 
> [...]

Here is the summary with links:
  - [net] NFC: netlink: fix sleep in atomic bug when firmware download timeout
    https://git.kernel.org/netdev/net/c/4071bf121d59

You are awesome, thank you!
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