linux-kernel - Re: [PATCH v2 13/15] ath6kl: use new module_firmware

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Date:   Sat, 16 May 2020 00:12:43 -0400
From:   Rafael Aquini <aquini@...hat.com>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     jeyu@...nel.org, akpm@...ux-foundation.org, arnd@...db.de,
        rostedt@...dmis.org, mingo@...hat.com, cai@....pw,
        dyoung@...hat.com, bhe@...hat.com, peterz@...radead.org,
        tglx@...utronix.de, gpiccoli@...onical.com, pmladek@...e.com,
        tiwai@...e.de, schlad@...e.de, andriy.shevchenko@...ux.intel.com,
        keescook@...omium.org, daniel.vetter@...ll.ch, will@...nel.org,
        mchehab+samsung@...nel.org, kvalo@...eaurora.org,
        davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
        ath10k@...ts.infradead.org
Subject: Re: [PATCH v2 13/15] ath6kl: use new module_firmware_crashed()

On Fri, May 15, 2020 at 09:28:44PM +0000, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / reload and in the worst cases
> a reboot.
> 
> Using a taint flag allows us to annotate when this happens clearly.
> 
> Cc: linux-wireless@...r.kernel.org
> Cc: ath10k@...ts.infradead.org
> Cc: Kalle Valo <kvalo@...eaurora.org>
> Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
> ---
>  drivers/net/wireless/ath/ath6kl/hif.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/wireless/ath/ath6kl/hif.c b/drivers/net/wireless/ath/ath6kl/hif.c
> index d1942537ea10..cfd838607544 100644
> --- a/drivers/net/wireless/ath/ath6kl/hif.c
> +++ b/drivers/net/wireless/ath/ath6kl/hif.c
> @@ -120,6 +120,7 @@ static int ath6kl_hif_proc_dbg_intr(struct ath6kl_device *dev)
>  	int ret;
>  
>  	ath6kl_warn("firmware crashed\n");
> +	module_firmware_crashed();
>  
>  	/*
>  	 * read counter to clear the interrupt, the debug error interrupt is
> -- 
> 2.26.2
> 
Acked-by: Rafael Aquini <aquini@...hat.com>