linux-kernel - Re: [PATCH 1045/1285] Replace numeric parameter like 0444 with macro

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Message-ID: <acf38de2-96c3-090f-9086-e111c9a4bc17@oracle.com>
Date:	Tue, 2 Aug 2016 13:14:03 -0500
From:	Dave Kleikamp <dave.kleikamp@...cle.com>
To:	Baole Ni <baolex.ni@...el.com>
Cc:	jfs-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	Chuansheng Liu <chuansheng.liu@...el.com>
Subject: Re: [PATCH 1045/1285] Replace numeric parameter like 0444 with macro

Trimming the cc list..

On 08/02/2016 07:11 AM, 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.

NACK for the same reasons that others have rejected companion patches.

0644 is much easier to read than S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH.

> 
> Signed-off-by: Chuansheng Liu <chuansheng.liu@...el.com>
> Signed-off-by: Baole Ni <baolex.ni@...el.com>
> ---
>  fs/jfs/super.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/jfs/super.c b/fs/jfs/super.c
> index cec8814..c348410 100644
> --- a/fs/jfs/super.c
> +++ b/fs/jfs/super.c
> @@ -67,7 +67,7 @@ struct task_struct *jfsSyncThread;
>  
>  #ifdef CONFIG_JFS_DEBUG
>  int jfsloglevel = JFS_LOGLEVEL_WARN;
> -module_param(jfsloglevel, int, 0644);
> +module_param(jfsloglevel, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
>  MODULE_PARM_DESC(jfsloglevel, "Specify JFS loglevel (0, 1 or 2)");
>  #endif