From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Jonathan Cameron <jic23@kernel.org>
Cc: Marek Vasut <marek.vasut@gmail.com>,
Lars-Peter Clausen <lars@metafoo.de>,
Michael Hennerich <Michael.Hennerich@analog.com>,
Robert Eshleman <bobbyeshleman@gmail.com>,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/4] iio: light: max44009: add missing OF device matching
Date: Sat, 11 Mar 2023 13:28:17 +0100 [thread overview]
Message-ID: <8f448bc9-2f2b-77cb-ffe2-895593a6047e@linaro.org> (raw)
In-Reply-To: <20230311122619.2d8bfaf5@jic23-huawei>
On 11/03/2023 13:26, Jonathan Cameron wrote:
> On Sat, 11 Mar 2023 12:14:56 +0100
> Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote:
>
>> The driver currently matches only via i2c_device_id, but also has
>> of_device_id table:
>>
>> drivers/iio/light/max44009.c:545:34: error: ‘max44009_of_match’ defined but not used [-Werror=unused-const-variable=]
>>
>> Fixes: 6aef699a7d7e ("iio: light: add driver for MAX44009")
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>
> Don't use of_match_ptr() unless you are absolutely sure no other firmware
> route will make use of the of_match_table.
>
> In this particular case ACPI using PRP0001 is broken by that macro.
It's not broken because there was no matching via PRP0001 due to missing
table.
>
> So good to set the of_match_table, but make sure to always set it
> and hence you don't need the __maybe_unused.
So you want to add PRP0001? We can, the fix is for different issue, though.
Best regards,
Krzysztof
next prev parent reply other threads:[~2023-03-11 12:28 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-11 11:14 [PATCH 1/4] iio: adc: rcar-gyroadc: mark OF related data as maybe unused Krzysztof Kozlowski
2023-03-11 11:14 ` [PATCH 2/4] iio: dac: ad5755: " Krzysztof Kozlowski
2023-03-11 12:22 ` Jonathan Cameron
2023-03-11 12:25 ` Krzysztof Kozlowski
2023-03-11 18:31 ` Jonathan Cameron
2023-03-12 10:11 ` Krzysztof Kozlowski
2023-03-11 11:14 ` [PATCH 3/4] iio: light: max44009: add missing OF device matching Krzysztof Kozlowski
2023-03-11 12:26 ` Jonathan Cameron
2023-03-11 12:28 ` Krzysztof Kozlowski [this message]
2023-03-11 18:35 ` Jonathan Cameron
2023-03-12 10:15 ` Krzysztof Kozlowski
2023-03-11 11:14 ` [PATCH 4/4] iio: proximity: sx9500: Mark ACPI and OF related data as maybe unused Krzysztof Kozlowski
2023-03-11 12:28 ` Jonathan Cameron
2023-03-11 12:30 ` Krzysztof Kozlowski
2023-03-11 18:44 ` Jonathan Cameron
2023-03-12 10:17 ` Krzysztof Kozlowski
2023-03-12 14:14 ` Jonathan Cameron
2023-03-12 15:19 ` Krzysztof Kozlowski
2023-03-11 12:23 ` [PATCH 1/4] iio: adc: rcar-gyroadc: mark " Jonathan Cameron
2023-03-11 12:26 ` Krzysztof Kozlowski
2023-03-11 18:47 ` Jonathan Cameron
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