linux-kernel - Re: [PATCH 1/7] mmc: sdio: store owner from modules with sdio_register

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Message-ID: <efae80b6-a0c2-4db4-b42e-83fb61eb74b4@linaro.org>
Date: Mon, 1 Apr 2024 11:44:52 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Francesco Dolcini <francesco@...cini.it>
Cc: Ulf Hansson <ulf.hansson@...aro.org>,
 Marcel Holtmann <marcel@...tmann.org>,
 Luiz Augusto von Dentz <luiz.dentz@...il.com>,
 Matthias Brugger <matthias.bgg@...il.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 Kalle Valo <kvalo@...nel.org>, Jeff Johnson <jjohnson@...nel.org>,
 Arend van Spriel <arend.vanspriel@...adcom.com>,
 Brian Norris <briannorris@...omium.org>,
 Jérôme Pouiller <jerome.pouiller@...abs.com>,
 linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-bluetooth@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, linux-wireless@...r.kernel.org,
 ath10k@...ts.infradead.org, brcm80211@...ts.linux.dev,
 brcm80211-dev-list.pdl@...adcom.com
Subject: Re: [PATCH 1/7] mmc: sdio: store owner from modules with
 sdio_register_driver()

On 31/03/2024 22:37, Francesco Dolcini wrote:
> Hello Krzysztof,
> 
> On Fri, Mar 29, 2024 at 06:24:31PM +0100, Krzysztof Kozlowski wrote:
>> Modules registering driver with sdio_register_driver() might
>> forget to set .owner field.  The field is used by some of other kernel
>                              ^^ double space here
> 
>> parts for reference counting (try_module_get()), so it is expected that
>> drivers will set it.
>>
>> Solve the problem by moving this task away from the drivers to the core
>> code, just like we did for platform_driver in
>> commit 9447057eaff8 ("platform_device: use a macro instead of
>> platform_driver_register").
>>
>> Since many drivers forget to set the .owner, this effectively will fix
>> them.  Examples of fixed drivers are: ath6kl, b43, btsdio.c, ks7010,
>        ^^ and here

Which is correct :). Double space is on purpose.

> 
>> libertas, MediaTek WiFi drivers, Realtek WiFi drivers, rsi, siano,
>> wilc1000, wl1251 and more.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> My nit comments are irrelevant, but given you did the same twice I felt
> like letting you know.
> 
> Reviewed-by: Francesco Dolcini <francesco.dolcini@...adex.com>
> 

Best regards,
Krzysztof