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Date:   Sat, 16 May 2020 00:13:44 -0400
From:   Rafael Aquini <aquini@redhat.com>
To:     Luis Chamberlain <mcgrof@kernel.org>
Cc:     jeyu@kernel.org, akpm@linux-foundation.org, arnd@arndb.de,
        rostedt@goodmis.org, mingo@redhat.com, cai@lca.pw,
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        tiwai@suse.de, schlad@suse.de, andriy.shevchenko@linux.intel.com,
        keescook@chromium.org, daniel.vetter@ffwll.ch, will@kernel.org,
        mchehab+samsung@kernel.org, kvalo@codeaurora.org,
        davem@davemloft.net, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
        Lennert Buytenhek <buytenh@wantstofly.org>,
        "Gustavo A. R. Silva" <gustavoars@kernel.org>,
        Johannes Berg <johannes.berg@intel.com>,
        Ganapathi Bhat <ganapathi.bhat@nxp.com>
Subject: Re: [PATCH v2 15/15] mwl8k: use new module_firmware_crashed()
Message-ID: <20200516041344.GO3182@x1-fbsd>
References: <20200515212846.1347-1-mcgrof@kernel.org>
 <20200515212846.1347-16-mcgrof@kernel.org>
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On Fri, May 15, 2020 at 09:28:46PM +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@vger.kernel.org
> Cc: Lennert Buytenhek <buytenh@wantstofly.org>
> Cc: Kalle Valo <kvalo@codeaurora.org>
> Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
> Cc: Johannes Berg <johannes.berg@intel.com>
> Cc: Ganapathi Bhat <ganapathi.bhat@nxp.com>
> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
> ---
>  drivers/net/wireless/marvell/mwl8k.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/wireless/marvell/mwl8k.c b/drivers/net/wireless/marvell/mwl8k.c
> index 97f23f93f6e7..d609ef1bb879 100644
> --- a/drivers/net/wireless/marvell/mwl8k.c
> +++ b/drivers/net/wireless/marvell/mwl8k.c
> @@ -1551,6 +1551,7 @@ static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
>  	 * the firmware has crashed
>  	 */
>  	if (priv->hw_restart_in_progress) {
> +		module_firmware_crashed();
>  		if (priv->hw_restart_owner == current)
>  			return 0;
>  		else
> -- 
> 2.26.2
> 
Acked-by: Rafael Aquini <aquini@redhat.com>