linux-kernel - [PATCH v2 15/15] mwl8k: use new module_firmware

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Message-Id: <20200515212846.1347-16-mcgrof@kernel.org>
Date:   Fri, 15 May 2020 21:28:46 +0000
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     jeyu@...nel.org
Cc:     akpm@...ux-foundation.org, arnd@...db.de, rostedt@...dmis.org,
        mingo@...hat.com, aquini@...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, Luis Chamberlain <mcgrof@...nel.org>,
        linux-wireless@...r.kernel.org,
        Lennert Buytenhek <buytenh@...tstofly.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Johannes Berg <johannes.berg@...el.com>,
        Ganapathi Bhat <ganapathi.bhat@....com>
Subject: [PATCH v2 15/15] mwl8k: use new module_firmware_crashed()

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: Lennert Buytenhek <buytenh@...tstofly.org>
Cc: Kalle Valo <kvalo@...eaurora.org>
Cc: "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Johannes Berg <johannes.berg@...el.com>
Cc: Ganapathi Bhat <ganapathi.bhat@....com>
Signed-off-by: Luis Chamberlain <mcgrof@...nel.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