linux-kernel - Re: [PATCH v3 9/9] brcmfmac: pcie: Read the console on init and shutdown

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Date:   Wed, 19 Jan 2022 13:35:38 +0100
From:   Arend van Spriel <arend.vanspriel@...adcom.com>
To:     Hector Martin <marcan@...can.st>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Chi-hsien Lin <chi-hsien.lin@...ineon.com>,
        Wright Feng <wright.feng@...ineon.com>,
        Dmitry Osipenko <digetx@...il.com>
Cc:     Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Mark Kettenis <kettenis@...nbsd.org>,
        Rafał Miłecki <zajec5@...il.com>,
        Pieter-Paul Giesberts <pieter-paul.giesberts@...adcom.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>,
        "John W. Linville" <linville@...driver.com>,
        "brian m. carlson" <sandals@...stytoothpaste.net>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, brcm80211-dev-list.pdl@...adcom.com,
        SHA-cyfmac-dev-list@...ineon.com
Subject: Re: [PATCH v3 9/9] brcmfmac: pcie: Read the console on init and
 shutdown

On 1/17/2022 3:29 PM, Hector Martin wrote:
> This allows us to get console messages if the firmware crashed during
> early init, or if an operation failed and we're about to shut down.

We do have a module parameter that forces probing to succeed regardless 
any failure so we can create memory dump of the wifi device, read the 
console, etc. Still it can be useful to add these console read calls. 
Thanks.

Reviewed-by: Arend van Spriel <arend.vanspriel@...adcom.com>
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Hector Martin <marcan@...can.st>
> ---
>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 4 ++++
>   1 file changed, 4 insertions(+)

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