linux-kernel - Re: [v3,1/1] hwmon:(nct7904) Set default timeout

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Message-ID: <20200527064743.GA10680@roeck-us.net>
Date:   Tue, 26 May 2020 23:47:43 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     yuechao.zhao@...antech.com.cn
Cc:     345351830@...com, amy.shih@...antech.com.tw,
        oakley.ding@...antech.com.tw, jia.sui@...antech.com.cn,
        Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [v3,1/1] hwmon:(nct7904) Set default timeout

On Wed, May 27, 2020 at 06:16:59AM +0000, yuechao.zhao@...antech.com.cn wrote:
> From: Yuechao Zhao <yuechao.zhao@...antech.com.cn>
> 
> The timeout module parameter should not be used for setting the default
> timeout. Because, if you set the timeout = 0, the default timeout will
> be meaningless. And the timeout module parameter of 0 means "no timeout
> module paraameter specified".
> 
> Signed-off-by: Yuechao Zhao <yuechao.zhao@...antech.com.cn>

Applied.

Thanks,
Guenter

> ---
> Change in v3:
> - replace 'static int timeout = WATCHDOG_TIMEOUT;' with 'static int timeout;'
> - fixed typo
> 
> Change in v2:
> - modify subject to 'hwmon:(nct7904) Set default timeout'
> ---
>  drivers/hwmon/nct7904.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c
> index 18c95be..b042569 100644
> --- a/drivers/hwmon/nct7904.c
> +++ b/drivers/hwmon/nct7904.c
> @@ -111,14 +111,14 @@
>  #define MIN_TIMEOUT		(1 * 60)
>  #define MAX_TIMEOUT		(255 * 60)
>  
> -static int timeout = WATCHDOG_TIMEOUT;
> +static int timeout;
>  module_param(timeout, int, 0);
>  MODULE_PARM_DESC(timeout, "Watchdog timeout in minutes. 1 <= timeout <= 255, default="
> -			__MODULE_STRING(WATCHODOG_TIMEOUT) ".");
> +			__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
>  
>  static bool nowayout = WATCHDOG_NOWAYOUT;
>  module_param(nowayout, bool, 0);
> -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started once started (default="
> +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
>  			__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
>  
>  static const unsigned short normal_i2c[] = {
> @@ -1147,7 +1147,7 @@ static int nct7904_probe(struct i2c_client *client,
>  	data->wdt.ops = &nct7904_wdt_ops;
>  	data->wdt.info = &nct7904_wdt_info;
>  
> -	data->wdt.timeout = timeout * 60; /* in seconds */
> +	data->wdt.timeout = WATCHDOG_TIMEOUT * 60; /* Set default timeout */
>  	data->wdt.min_timeout = MIN_TIMEOUT;
>  	data->wdt.max_timeout = MAX_TIMEOUT;
>  	data->wdt.parent = &client->dev;