Re: [PATCH] [media] tw686x: add a missing newline when printing parameter 'dma_mode'

From: Xiongfeng Wang
Date: Wed May 13 2020 - 21:32:47 EST


Hi Ezequiel,

Thanks for your reply !

On 2020/5/14 3:32, Ezequiel Garcia wrote:
> On Mon, 11 May 2020 at 05:49, Xiongfeng Wang <wangxiongfeng2@xxxxxxxxxx> wrote:
>>
>> When I cat module parameter 'dma_mode' by sysfs, it displays as follows.
>> It is better to add a newline for easy reading.
>>
>> [root@hulk-202 ~]# cat /sys/module/tw686x/parameters/dma_mode
>> memcpy[root@hulk-202 ~]#
>>
>> Signed-off-by: Xiongfeng Wang <wangxiongfeng2@xxxxxxxxxx>
>
> I don't mind this change, but I don't think this is standard.
> The lack of newline follows what other drivers are doing.
>
> # hexdump -c /sys/module/acpi/parameters/ec_event_clearing
> 0000000 q u e r y
> 0000005
>
> Is it really an issue for you?

It's not an issue for me. It's just that if the result is in a separate line, it
reads more easily. I am also planning to fix the parameters below
'/sys/module/acpi/parameters'.

Thanks,
Xiongfeng

>
> Thanks,
> Ezequiel
>
>> ---
>> drivers/media/pci/tw686x/tw686x-core.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/media/pci/tw686x/tw686x-core.c b/drivers/media/pci/tw686x/tw686x-core.c
>> index 74ae4f0..bfc61da 100644
>> --- a/drivers/media/pci/tw686x/tw686x-core.c
>> +++ b/drivers/media/pci/tw686x/tw686x-core.c
>> @@ -71,7 +71,7 @@ static const char *dma_mode_name(unsigned int mode)
>>
>> static int tw686x_dma_mode_get(char *buffer, const struct kernel_param *kp)
>> {
>> - return sprintf(buffer, "%s", dma_mode_name(dma_mode));
>> + return sprintf(buffer, "%s\n", dma_mode_name(dma_mode));
>> }
>>
>> static int tw686x_dma_mode_set(const char *val, const struct kernel_param *kp)
>> --
>> 1.7.12.4
>>
>