[PATCH 0293/1285] Replace numeric parameter like 0444 with macro

[PATCH 0293/1285] Replace numeric parameter like 0444 with macro

[Baole Ni]

I find that the developers often just specified the numeric value
when calling a macro which is defined with a parameter for access permission.
As we know, these numeric value for access permission have had the corresponding macro,
and that using macro can improve the robustness and readability of the code,
thus, I suggest replacing the numeric parameter with the macro.

Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Baole Ni <baolex.ni@intel.com>
---
 drivers/input/touchscreen/ili210x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c
index ddf694b..a8a7089 100644
--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -169,7 +169,7 @@ static ssize_t ili210x_calibrate(struct device *dev,
 
 	return count;
 }
-static DEVICE_ATTR(calibrate, 0644, NULL, ili210x_calibrate);
+static DEVICE_ATTR(calibrate, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, NULL, ili210x_calibrate);
 
 static struct attribute *ili210x_attributes[] = {
 	&dev_attr_calibrate.attr,
-- 
2.9.2

Re: [PATCH 0293/1285] Replace numeric parameter like 0444 with macro

[Dmitry Torokhov]

On Tue, Aug 02, 2016 at 06:57:31PM +0800, Baole Ni wrote:
> I find that the developers often just specified the numeric value
> when calling a macro which is defined with a parameter for access permission.
> As we know, these numeric value for access permission have had the corresponding macro,
> and that using macro can improve the robustness and readability of the code,
> thus, I suggest replacing the numeric parameter with the macro.
> 
> Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
> Signed-off-by: Baole Ni <baolex.ni@intel.com>
> ---
>  drivers/input/touchscreen/ili210x.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c
> index ddf694b..a8a7089 100644
> --- a/drivers/input/touchscreen/ili210x.c
> +++ b/drivers/input/touchscreen/ili210x.c
> @@ -169,7 +169,7 @@ static ssize_t ili210x_calibrate(struct device *dev,
>  
>  	return count;
>  }
> -static DEVICE_ATTR(calibrate, 0644, NULL, ili210x_calibrate);
> +static DEVICE_ATTR(calibrate, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, NULL, ili210x_calibrate);

Here was a bug in the driver that you helpfully carried over. Since we
do not provide "show" method the permissions should be 0200 or S_IWUSR).

Thanks.

-- 
Dmitry