linux-kernel - Re: [PATCH 3/7] tty: serial: samsung: constify s3c24xx_serial_drv

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Message-ID: <df43dd5e-253c-3d16-2b18-0a0a2dedaadd@canonical.com>
Date:   Mon, 7 Mar 2022 08:48:45 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Jiri Slaby <jirislaby@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/7] tty: serial: samsung: constify
 s3c24xx_serial_drv_data

On 07/03/2022 07:36, Jiri Slaby wrote:
> On 04. 03. 22, 9:03, Krzysztof Kozlowski wrote:
>> The driver data (struct s3c24xx_serial_drv_data) is only used to
>> initialize the driver properly and is not modified.  Make it const.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> ...
>> @@ -2726,13 +2726,13 @@ static struct s3c24xx_serial_drv_data s3c6400_serial_drv_data = {
>>   		.ufcon		= S3C2410_UFCON_DEFAULT,
>>   	},
>>   };
>> -#define S3C6400_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c6400_serial_drv_data)
>> +#define S3C6400_SERIAL_DRV_DATA (&s3c6400_serial_drv_data)
>>   #else
>> -#define S3C6400_SERIAL_DRV_DATA (kernel_ulong_t)NULL
>> +#define S3C6400_SERIAL_DRV_DATA (NULL)
>>   #endif
>>   
>>   #ifdef CONFIG_CPU_S5PV210
>> -static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
>> +static const struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
>>   	.info = {
>>   		.name		= "Samsung S5PV210 UART",
>>   		.type		= TYPE_S3C6400,
>> @@ -2755,9 +2755,9 @@ static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
>>   	},
>>   	.fifosize = { 256, 64, 16, 16 },
>>   };
>> -#define S5PV210_SERIAL_DRV_DATA ((kernel_ulong_t)&s5pv210_serial_drv_data)
>> +#define S5PV210_SERIAL_DRV_DATA (&s5pv210_serial_drv_data)
>>   #else
>> -#define S5PV210_SERIAL_DRV_DATA	(kernel_ulong_t)NULL
>> +#define S5PV210_SERIAL_DRV_DATA	(NULL)
> 
> 
> All these changes are somehow irrelevant to the subject/to this patch. 
> Care to put them into a separate patch?
> 
> There is no need to put NULL into parentheses.

I wanted to make it consistent with the other, but indeed I can skip it.

> 
>> @@ -3062,7 +3062,6 @@ static int __init apple_s5l_early_console_setup(struct earlycon_device *device,
>>   OF_EARLYCON_DECLARE(s5l, "apple,s5l-uart", apple_s5l_early_console_setup);
>>   #endif
>>   
>> -MODULE_ALIAS("platform:samsung-uart");
> 
> This is as well a different change to what is claimed.

D'oh, this was not intended. Thanks for spotting it.


Best regards,
Krzysztof