linux-kernel - Re: [PATCH] media: i2c: video: constify pointers to hwmon_channel

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Message-ID: <0a9cc901-9634-6fd0-eade-7a512631c62a@roeck-us.net>
Date:   Fri, 7 Apr 2023 16:08:02 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Matt Ranostay <matt.ranostay@...sulko.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org
Subject: Re: [PATCH] media: i2c: video: constify pointers to
 hwmon_channel_info

On 4/7/23 08:00, Krzysztof Kozlowski wrote:
> Statically allocated array of pointed to hwmon_channel_info can be made
> const for safety.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---
> 
> This depends on hwmon core patch:
> https://lore.kernel.org/all/20230406203103.3011503-2-krzysztof.kozlowski@linaro.org/
> 
> Therefore I propose this should also go via hwmon tree.
> 

I am not going to apply patches for 10+ subsystems through the hwmon tree.
This can only result in chaos. The dependent patch is available at

git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-const

or wait until after the next commit window to apply this patch.

Thanks,
Guenter

> Cc: Jean Delvare <jdelvare@...e.com>
> Cc: Guenter Roeck <linux@...ck-us.net>
> Cc: linux-hwmon@...r.kernel.org
> ---
>   drivers/media/i2c/video-i2c.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c
> index dddf9827b314..abd472dcd497 100644
> --- a/drivers/media/i2c/video-i2c.c
> +++ b/drivers/media/i2c/video-i2c.c
> @@ -274,7 +274,7 @@ static const struct hwmon_channel_info amg88xx_temp = {
>   	.config = amg88xx_temp_config,
>   };
>   
> -static const struct hwmon_channel_info *amg88xx_info[] = {
> +static const struct hwmon_channel_info * const amg88xx_info[] = {
>   	&amg88xx_temp,
>   	NULL
>   };