linux-kernel - Re: [PATCH 2/5] iio: adc: stm32-dfsdm: Fix build warnings about export.h

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Message-ID: <7600b151-0487-4cb9-ab6e-3cc9c6012bdf@foss.st.com>
Date: Tue, 10 Jun 2025 15:05:16 +0200
From: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To: Antonio Borneo <antonio.borneo@...s.st.com>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>,
        Andy Shevchenko <andy@...nel.org>,
        "David
 Lechner" <dlechner@...libre.com>,
        Gatien Chevallier
	<gatien.chevallier@...s.st.com>,
        Jonathan Cameron <jic23@...nel.org>, "Lee
 Jones" <lee@...nel.org>,
        <linux-iio@...r.kernel.org>,
        Nuno Sá <nuno.sa@...log.com>,
        Olivier Moysan
	<olivier.moysan@...s.st.com>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        Maxime Coquelin
	<mcoquelin.stm32@...il.com>
Subject: Re: [PATCH 2/5] iio: adc: stm32-dfsdm: Fix build warnings about
 export.h

On 6/10/25 14:48, Antonio Borneo wrote:
> After commit a934a57a42f6 ("scripts/misc-check: check missing #include
> <linux/export.h> when W=1") and commit 7d95680d64ac ("scripts/misc-check:
> check unnecessary #include <linux/export.h> when W=1") we get the build
> warnings with W=1:
> 
> drivers/iio/adc/stm32-dfsdm-adc.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
> drivers/iio/adc/stm32-dfsdm-core.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
> 
> Fix them.
> 
> Signed-off-by: Antonio Borneo <antonio.borneo@...s.st.com>

Hi Antonio,

You can add my:
Acked-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>

Thanks,
Fabrice
> ---
>  drivers/iio/adc/stm32-dfsdm-adc.c  | 1 +
>  drivers/iio/adc/stm32-dfsdm-core.c | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
> index f583924eb16bb..c2d21eecafe79 100644
> --- a/drivers/iio/adc/stm32-dfsdm-adc.c
> +++ b/drivers/iio/adc/stm32-dfsdm-adc.c
> @@ -8,6 +8,7 @@
>  
>  #include <linux/dmaengine.h>
>  #include <linux/dma-mapping.h>
> +#include <linux/export.h>
>  #include <linux/iio/adc/stm32-dfsdm-adc.h>
>  #include <linux/iio/backend.h>
>  #include <linux/iio/buffer.h>
> diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c
> index 041dc9ebc0482..47e2d1338e9e6 100644
> --- a/drivers/iio/adc/stm32-dfsdm-core.c
> +++ b/drivers/iio/adc/stm32-dfsdm-core.c
> @@ -8,6 +8,7 @@
>  
>  #include <linux/bitfield.h>
>  #include <linux/clk.h>
> +#include <linux/export.h>
>  #include <linux/iio/iio.h>
>  #include <linux/iio/sysfs.h>
>  #include <linux/interrupt.h>