linux-kernel - Re: [PATCH] iio: adc: stm32-adc: set some stm32-adc.c variables storage-class-specifier to static

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Message-ID: <20230312174524.75e55ce8@jic23-huawei>
Date:   Sun, 12 Mar 2023 17:45:24 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Tom Rix <trix@...hat.com>
Cc:     lars@...afoo.de, mcoquelin.stm32@...il.com,
        alexandre.torgue@...s.st.com, fabrice.gasnier@...s.st.com,
        olivier.moysan@...s.st.com, andy.shevchenko@...il.com,
        yannick.brosseau@...il.com, nuno.sa@...log.com,
        linux-iio@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: adc: stm32-adc: set some stm32-adc.c variables
 storage-class-specifier to static

On Sun, 12 Mar 2023 12:17:33 -0400
Tom Rix <trix@...hat.com> wrote:

> smatch reports several warnings
> drivers/iio/adc/stm32-adc.c:2591:20: warning:
>   symbol 'stm32_adc_min_ts_h7' was not declared. Should it be static?
> drivers/iio/adc/stm32-adc.c:2610:20: warning:
>   symbol 'stm32_adc_min_ts_mp1' was not declared. Should it be static?
> drivers/iio/adc/stm32-adc.c:2630:20: warning:
>   symbol 'stm32_adc_min_ts_mp13' was not declared. Should it be static?
> 
> These variables are only used in stm32-adc.c, so they should be static
> 
> Signed-off-by: Tom Rix <trix@...hat.com>

Thanks Tom,

I wonder why these didn't show up in earlier build reports?
Ah well.

Applied to the togreg branch of iio.git and pushed out as testing for
0-day to take a look at it.

Thanks,

Jonathan

> ---
>  drivers/iio/adc/stm32-adc.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
> index 45d4e79f8e55..1aadb2ad2cab 100644
> --- a/drivers/iio/adc/stm32-adc.c
> +++ b/drivers/iio/adc/stm32-adc.c
> @@ -2588,7 +2588,7 @@ static const struct stm32_adc_cfg stm32f4_adc_cfg = {
>  	.irq_clear = stm32f4_adc_irq_clear,
>  };
>  
> -const unsigned int stm32_adc_min_ts_h7[] = { 0, 0, 0, 4300, 9000 };
> +static const unsigned int stm32_adc_min_ts_h7[] = { 0, 0, 0, 4300, 9000 };
>  static_assert(ARRAY_SIZE(stm32_adc_min_ts_h7) == STM32_ADC_INT_CH_NB);
>  
>  static const struct stm32_adc_cfg stm32h7_adc_cfg = {
> @@ -2607,7 +2607,7 @@ static const struct stm32_adc_cfg stm32h7_adc_cfg = {
>  	.ts_int_ch = stm32_adc_min_ts_h7,
>  };
>  
> -const unsigned int stm32_adc_min_ts_mp1[] = { 100, 100, 100, 4300, 9800 };
> +static const unsigned int stm32_adc_min_ts_mp1[] = { 100, 100, 100, 4300, 9800 };
>  static_assert(ARRAY_SIZE(stm32_adc_min_ts_mp1) == STM32_ADC_INT_CH_NB);
>  
>  static const struct stm32_adc_cfg stm32mp1_adc_cfg = {
> @@ -2627,7 +2627,7 @@ static const struct stm32_adc_cfg stm32mp1_adc_cfg = {
>  	.ts_int_ch = stm32_adc_min_ts_mp1,
>  };
>  
> -const unsigned int stm32_adc_min_ts_mp13[] = { 100, 0, 0, 4300, 9800 };
> +static const unsigned int stm32_adc_min_ts_mp13[] = { 100, 0, 0, 4300, 9800 };
>  static_assert(ARRAY_SIZE(stm32_adc_min_ts_mp13) == STM32_ADC_INT_CH_NB);
>  
>  static const struct stm32_adc_cfg stm32mp13_adc_cfg = {