linux-kernel - [PATCH v2 14/15] brcm80211: use new module_firmware

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Message-Id: <20200515212846.1347-15-mcgrof@kernel.org>
Date:   Fri, 15 May 2020 21:28:45 +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,
        brcm80211-dev-list.pdl@...adcom.com,
        brcm80211-dev-list@...ress.com,
        Arend van Spriel <arend.vanspriel@...adcom.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Chi-Hsien Lin <chi-hsien.lin@...ress.com>,
        Wright Feng <wright.feng@...ress.com>,
        Rafał Miłecki <rafal@...ecki.pl>,
        Pieter-Paul Giesberts <pieter-paul.giesberts@...adcom.com>
Subject: [PATCH v2 14/15] brcm80211: 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: brcm80211-dev-list.pdl@...adcom.com
Cc: brcm80211-dev-list@...ress.com
Cc: Arend van Spriel <arend.vanspriel@...adcom.com>
Cc: Franky Lin <franky.lin@...adcom.com>
Cc: Hante Meuleman <hante.meuleman@...adcom.com>
Cc: Chi-Hsien Lin <chi-hsien.lin@...ress.com>
Cc: Wright Feng <wright.feng@...ress.com>
Cc: Kalle Valo <kvalo@...eaurora.org>
Cc: "Rafał Miłecki" <rafal@...ecki.pl>
Cc: Pieter-Paul Giesberts <pieter-paul.giesberts@...adcom.com>
Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index c88655acc78c..d623f83568b3 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -1393,6 +1393,7 @@ void brcmf_fw_crashed(struct device *dev)
 	struct brcmf_pub *drvr = bus_if->drvr;
 
 	bphy_err(drvr, "Firmware has halted or crashed\n");
+	module_firmware_crashed();
 
 	brcmf_dev_coredump(dev);
 
-- 
2.26.2