[PATCH] ufs: hwmon: constify pointers to hwmon_channel_info

[PATCH] ufs: hwmon: constify pointers to hwmon_channel_info

[Krzysztof Kozlowski]

Statically allocated array of pointed to hwmon_channel_info can be made
const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.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.

Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-hwmon@vger.kernel.org
---
 drivers/ufs/core/ufs-hwmon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ufs/core/ufs-hwmon.c b/drivers/ufs/core/ufs-hwmon.c
index 4c6a872b7a7c..229e2ad70903 100644
--- a/drivers/ufs/core/ufs-hwmon.c
+++ b/drivers/ufs/core/ufs-hwmon.c
@@ -146,7 +146,7 @@ static umode_t ufs_hwmon_is_visible(const void *_data, enum hwmon_sensor_types t
 	return 0;
 }
 
-static const struct hwmon_channel_info *ufs_hwmon_info[] = {
+static const struct hwmon_channel_info * const ufs_hwmon_info[] = {
 	HWMON_CHANNEL_INFO(temp, HWMON_T_ENABLE | HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_LCRIT),
 	NULL
 };
-- 
2.34.1

Re: [PATCH] ufs: hwmon: constify pointers to hwmon_channel_info

[Bart Van Assche]

On 4/7/23 08:01, Krzysztof Kozlowski wrote:
> -static const struct hwmon_channel_info *ufs_hwmon_info[] = {
> +static const struct hwmon_channel_info * const ufs_hwmon_info[] = {
>   	HWMON_CHANNEL_INFO(temp, HWMON_T_ENABLE | HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_LCRIT),
>   	NULL
>   };

A nit: to me the use of whitespace in this patch does not seem to be 
compliant with the Linux kernel coding style.

Thanks,

Bart.

Re: [PATCH] ufs: hwmon: constify pointers to hwmon_channel_info

[Krzysztof Kozlowski]

On 07/04/2023 20:30, Bart Van Assche wrote:
> On 4/7/23 08:01, Krzysztof Kozlowski wrote:
>> -static const struct hwmon_channel_info *ufs_hwmon_info[] = {
>> +static const struct hwmon_channel_info * const ufs_hwmon_info[] = {
>>   	HWMON_CHANNEL_INFO(temp, HWMON_T_ENABLE | HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_LCRIT),
>>   	NULL
>>   };
> 
> A nit: to me the use of whitespace in this patch does not seem to be 
> compliant with the Linux kernel coding style.

You mean it should be:
	hwmon_channel_info *const ufs_hwmon_info
?

I think the pointer * is tied only to variable name, but not to const.
Majority seems to choose similarly:

git grep "\*const" | wc -l
2763
git grep "\* const" | wc -l
16204

But if this is more than a nit, but your preference, I can fix it.

Best regards,
Krzysztof

Re: [PATCH] ufs: hwmon: constify pointers to hwmon_channel_info

[Guenter Roeck]

On 4/7/23 08:01, 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@linaro.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@suse.com>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: linux-hwmon@vger.kernel.org
> ---
>   drivers/ufs/core/ufs-hwmon.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/ufs/core/ufs-hwmon.c b/drivers/ufs/core/ufs-hwmon.c
> index 4c6a872b7a7c..229e2ad70903 100644
> --- a/drivers/ufs/core/ufs-hwmon.c
> +++ b/drivers/ufs/core/ufs-hwmon.c
> @@ -146,7 +146,7 @@ static umode_t ufs_hwmon_is_visible(const void *_data, enum hwmon_sensor_types t
>   	return 0;
>   }
>   
> -static const struct hwmon_channel_info *ufs_hwmon_info[] = {
> +static const struct hwmon_channel_info * const ufs_hwmon_info[] = {
>   	HWMON_CHANNEL_INFO(temp, HWMON_T_ENABLE | HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_LCRIT),
>   	NULL
>   };