linux-kernel - Re: [PATCH 0063/1285] Replace numeric parameter like 0444 with macro

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Date:	Tue, 2 Aug 2016 14:30:48 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Baole Ni <baolex.ni@...el.com>, b.zolnierkie@...sung.com,
	tj@...nel.org, lenb@...nel.org, x86@...nel.org, hpa@...or.com
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	chuansheng.liu@...el.com, travis@....com
Subject: Re: [PATCH 0063/1285] Replace numeric parameter like 0444 with macro

Hello.

On 8/2/2016 1:37 PM, 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@...el.com>
> Signed-off-by: Baole Ni <baolex.ni@...el.com>
> ---
>  drivers/ata/pata_legacy.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
> index bce2a8c..1dc0beb 100644
> --- a/drivers/ata/pata_legacy.c
> +++ b/drivers/ata/pata_legacy.c
> @@ -76,7 +76,7 @@
>  #define NR_HOST 6
>
>  static int all;
> -module_param(all, int, 0444);
> +module_param(all, int, S_IRUSR | S_IRGRP | S_IROTH);

    There's S_IRUGO for this case, no?

MBR, Sergei