Re: [PATCH v4 1/3] tty: serial: samsung: Use BIT() macro for APPLE_S5L_*

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On 10/9/2024 20:48, Andi Shyti wrote:
> Hi Nick,
> 
> On Mon, Sep 09, 2024 at 04:37:25PM GMT, Nick Chan wrote:
>> New entries using BIT() will be added soon, so change the existing ones
>> for consistency.
>>
>> Signed-off-by: Nick Chan <towinchenmi@xxxxxxxxx>
> 
> I think this is:
> 
> Suggested-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
We will see... Got a bit paranoid after bad things happened with v2 and v3.

> 
>> ---
>>  include/linux/serial_s3c.h | 12 ++++++------
>>  1 file changed, 6 insertions(+), 6 deletions(-)
>>
>> diff --git a/include/linux/serial_s3c.h b/include/linux/serial_s3c.h
>> index 1672cf0810ef..1e8686695487 100644
>> --- a/include/linux/serial_s3c.h
>> +++ b/include/linux/serial_s3c.h
>> @@ -249,9 +249,9 @@
>>  #define APPLE_S5L_UCON_RXTO_ENA		9
>>  #define APPLE_S5L_UCON_RXTHRESH_ENA	12
>>  #define APPLE_S5L_UCON_TXTHRESH_ENA	13
>> -#define APPLE_S5L_UCON_RXTO_ENA_MSK	(1 << APPLE_S5L_UCON_RXTO_ENA)
>> -#define APPLE_S5L_UCON_RXTHRESH_ENA_MSK	(1 << APPLE_S5L_UCON_RXTHRESH_ENA)
>> -#define APPLE_S5L_UCON_TXTHRESH_ENA_MSK	(1 << APPLE_S5L_UCON_TXTHRESH_ENA)
>> +#define APPLE_S5L_UCON_RXTO_ENA_MSK	BIT(APPLE_S5L_UCON_RXTO_ENA)
>> +#define APPLE_S5L_UCON_RXTHRESH_ENA_MSK	BIT(APPLE_S5L_UCON_RXTHRESH_ENA)
>> +#define APPLE_S5L_UCON_TXTHRESH_ENA_MSK	BIT(APPLE_S5L_UCON_TXTHRESH_ENA)
>>  
>>  #define APPLE_S5L_UCON_DEFAULT		(S3C2410_UCON_TXIRQMODE | \
>>  					 S3C2410_UCON_RXIRQMODE | \
>> @@ -260,9 +260,9 @@
>>  					 APPLE_S5L_UCON_RXTHRESH_ENA_MSK | \
>>  					 APPLE_S5L_UCON_TXTHRESH_ENA_MSK)
>>  
>> -#define APPLE_S5L_UTRSTAT_RXTHRESH	(1<<4)
>> -#define APPLE_S5L_UTRSTAT_TXTHRESH	(1<<5)
>> -#define APPLE_S5L_UTRSTAT_RXTO		(1<<9)
>> +#define APPLE_S5L_UTRSTAT_RXTHRESH	BIT(4)
>> +#define APPLE_S5L_UTRSTAT_TXTHRESH	BIT(5)
>> +#define APPLE_S5L_UTRSTAT_RXTO		BIT(9)
>>  #define APPLE_S5L_UTRSTAT_ALL_FLAGS	(0x3f0)
> 
> You could make this GENMASK(0x3f, 4)
Good idea, given the above context I think I may add

Suggested-by: Andi Shyti <andi.shyti@xxxxxxxxxx>

too. And actually it should be GENMASK(9, 3)

> 
> Andi

Nick Chan





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