linux-kernel - Re: [PATCH 1/2] watchdog: cadence_wdt: Enable access to module parameters

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Date:   Mon, 14 Aug 2017 07:47:27 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Michal Simek <michal.simek@...inx.com>
Cc:     linux-kernel@...r.kernel.org, monstr@...str.eu,
        linux-watchdog@...r.kernel.org, Wim Van Sebroeck <wim@...ana.be>
Subject: Re: [PATCH 1/2] watchdog: cadence_wdt: Enable access to module
 parameters

On Fri, Aug 04, 2017 at 09:39:16AM +0200, Michal Simek wrote:
> Give read access to module parameters to all and write access to root.
> This change also improves driver error path testing.
> 
> Signed-off-by: Michal Simek <michal.simek@...inx.com>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
> 
> Please let me know what you think - I can use macros from stat.h if
> required
> 
You mean instead of 0644 ? That is discouraged nowadays.

Guenter

> ---
>  drivers/watchdog/cadence_wdt.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/watchdog/cadence_wdt.c b/drivers/watchdog/cadence_wdt.c
> index 05c000081e9d..dadd3b0c2d49 100644
> --- a/drivers/watchdog/cadence_wdt.c
> +++ b/drivers/watchdog/cadence_wdt.c
> @@ -52,12 +52,12 @@
>  static int wdt_timeout;
>  static int nowayout = WATCHDOG_NOWAYOUT;
>  
> -module_param(wdt_timeout, int, 0);
> +module_param(wdt_timeout, int, 0644);
>  MODULE_PARM_DESC(wdt_timeout,
>  		 "Watchdog time in seconds. (default="
>  		 __MODULE_STRING(CDNS_WDT_DEFAULT_TIMEOUT) ")");
>  
> -module_param(nowayout, int, 0);
> +module_param(nowayout, int, 0644);
>  MODULE_PARM_DESC(nowayout,
>  		 "Watchdog cannot be stopped once started (default="
>  		 __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
> -- 
> 1.9.1
>