linux-kernel - Re: [PATCH 07/34] Input: stmpe-ts - mark OF related data as maybe unused

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Date: Wed, 3 Apr 2024 12:10:16 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Andy Shevchenko <andriy.shevchenko@...el.com>
Cc: Arnd Bergmann <arnd@...nel.org>, linux-kernel@...r.kernel.org,
 Dmitry Torokhov <dmitry.torokhov@...il.com>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Arnd Bergmann <arnd@...db.de>,
 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
 linux-input@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 07/34] Input: stmpe-ts - mark OF related data as maybe
 unused

On 03/04/2024 12:03, Andy Shevchenko wrote:
> On Wed, Apr 03, 2024 at 11:52:12AM +0200, Krzysztof Kozlowski wrote:
>> On 03/04/2024 11:40, Andy Shevchenko wrote:
>>> On Wed, Apr 03, 2024 at 10:06:25AM +0200, Arnd Bergmann wrote:
> 
> ...
> 
>>>> -static const struct of_device_id stmpe_ts_ids[] = {
>>>> +static const struct of_device_id stmpe_ts_ids[] __maybe_unused = {
>>>
>>> __maybe_unused? 
>>>
>>> Why not adding it into .driver as you have done in another patch in this series?
>>
>> Because there is no benefit in this. This is instantiated by MFD, so the
>> only thing you need is entry for module loading.
> 
> Hmm... Seems to me rather a good candidate for MODULE_ALIAS in this case. No?

No, I do not think module alias is for that purpose. This is a valid
compatible, documented and provided by DT so it is expected to be in
of_device_id.

Best regards,
Krzysztof