linux-kernel - Re: [PATCH net v3] net: stmmac: remove unneeded stmmac_poll

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Message-Id: <169652402546.29548.6404027864255533481.git-patchwork-notify@kernel.org>
Date:   Thu, 05 Oct 2023 16:40:25 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Remi Pommarel <repk@...plefau.lt>
Cc:     alexandre.torgue@...s.st.com, joabreu@...opsys.com,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, mcoquelin.stm32@...il.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH net v3] net: stmmac: remove unneeded stmmac_poll_controller

Hello:

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

On Wed,  4 Oct 2023 16:33:56 +0200 you wrote:
> Using netconsole netpoll_poll_dev could be called from interrupt
> context, thus using disable_irq() would cause the following kernel
> warning with CONFIG_DEBUG_ATOMIC_SLEEP enabled:
> 
>   BUG: sleeping function called from invalid context at kernel/irq/manage.c:137
>   in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 10, name: ksoftirqd/0
>   CPU: 0 PID: 10 Comm: ksoftirqd/0 Tainted: G        W         5.15.42-00075-g816b502b2298-dirty #117
>   Hardware name: aml (r1) (DT)
>   Call trace:
>    dump_backtrace+0x0/0x270
>    show_stack+0x14/0x20
>    dump_stack_lvl+0x8c/0xac
>    dump_stack+0x18/0x30
>    ___might_sleep+0x150/0x194
>    __might_sleep+0x64/0xbc
>    synchronize_irq+0x8c/0x150
>    disable_irq+0x2c/0x40
>    stmmac_poll_controller+0x140/0x1a0
>    netpoll_poll_dev+0x6c/0x220
>    netpoll_send_skb+0x308/0x390
>    netpoll_send_udp+0x418/0x760
>    write_msg+0x118/0x140 [netconsole]
>    console_unlock+0x404/0x500
>    vprintk_emit+0x118/0x250
>    dev_vprintk_emit+0x19c/0x1cc
>    dev_printk_emit+0x90/0xa8
>    __dev_printk+0x78/0x9c
>    _dev_warn+0xa4/0xbc
>    ath10k_warn+0xe8/0xf0 [ath10k_core]
>    ath10k_htt_txrx_compl_task+0x790/0x7fc [ath10k_core]
>    ath10k_pci_napi_poll+0x98/0x1f4 [ath10k_pci]
>    __napi_poll+0x58/0x1f4
>    net_rx_action+0x504/0x590
>    _stext+0x1b8/0x418
>    run_ksoftirqd+0x74/0xa4
>    smpboot_thread_fn+0x210/0x3c0
>    kthread+0x1fc/0x210
>    ret_from_fork+0x10/0x20
> 
> [...]

Here is the summary with links:
  - [net,v3] net: stmmac: remove unneeded stmmac_poll_controller
    https://git.kernel.org/netdev/net/c/3eef85558910

You are awesome, thank you!
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